HomeMy WebLinkAboutFIELD MANUAL - 23-00089 - Manufab - New Commercial ShopFIELD MANUAL
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LOGIX® INSULATED CONCRETE FORMS
1.1 – APPLICATION & USE ................................................................................................................................1-3
1.2 – PRODUCT SPECIFICATION TABLE ..............................................................................................................1-5
1.3 – ACCESSORIES .......................................................................................................................................1-11
TABLE OF CONTENTS
1.0 – SYSTEM OVERVIEW
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LOGIX® INSULATED CONCRETE FORMS
Logix Insulated Concrete Forms are used to create solid reinforced concrete walls that are pre-insulated for use
both above-and below-grade. Logix walls are particularly effective for residential, multi-residential, commercial,
institutional, and industrial buildings.
Logix is available in a wide variety of special form units and accessories, including corners, brick ledges, straight
panels, t-walls, pilasters, and knock-down forms permit the Logix system to be adapted to many different situations.
Logix forms are available in 8 inch (203 mm), 12 inch (305 mm) and 16 inch (406 mm) height for additional design
flexibility. See Section “1.2 – PRODUCT SPECIFICATION TABLE” on page 5.
INTERLOCK
Provides a tight, secure, fit
between successive courses
of forms.
FORM PANELS
Form panels are minimum 2.75” thick.
Made from dense expanded polystyrene (EPS) foam.
Standard panel size is 16” tall by 48” long.
BARS
Spaces between the
vertical lines.
LINES
The lines between the bars act as
cutting guides. Cuts made along the
line will ensure the interlock functions
consistently between courses.
Cut on the lines should be straight and
square.
WEB TIES
Polypropylene ties that
holds the form unit
together. The ties are spaced
8” on center, and connect the
form panels creating the cavity
for the concrete in thicknesses
of 4”, 6.25, 8”, 10”, 12” or
thicker.
Ties also acts as the placement
mechanism for reinforcing.
steel.
FURRING TAB
1 1/4” wide by 14 3/8” tall polypropylene tabs are molded
into the form panels, embedded 1/2” from the form surface.
Spaced 8” on center, tabs provide fastening edges for the
attachment of finish materials.
MARKERS
Denotes location of
furring tabs.
Typical ICF Components
1.1 – APPLICATION & USE
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LOGIX® INSULATED CONCRETE FORMS
Typical ICF Wall Assembly
1.1 – APPLICATION & USE cont’d
2.75” thick
expanded
polystyrene foam
insulation provides
continuous
insulation,
vapor, air and
moisture barrier
properties.
In addition, acts as
a protective layer
for the concrete
against impact
debris in high wind
zones.
Reinforced concrete
wall provides
structural strength,
durability, fire
resistance, thermal
mass properties,
air and moisture
barrier properties.
Logix creates high energy
efficient walls - min. R-24 walls
with thermal mass benefits,
and good sound attenuation
- STC 56
Attachment of
drywall provides
up to a 4 hour fire
resistance rating.
Exterior finishes
or cladding are
direct applied to
Logix ICF
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LOGIX® INSULATED CONCRETE FORMS
Logix manufactures both assembled and unassembled insulated concrete form units. Logix assembled forms, known
as “Logix PRO”, are delivered to the job site as assembled form blocks. Logix unassembled forms (or knock-down
forms), known as “Logix KD”, are delivered to the job site in components that make up the form blocks - the form
panels and KD Connectors. Logix KD are assembled on the job site.
Below is a summary of the types of Logix PRO and Logix KD forms available. However, contact a local Logix
representative for availability of specific Logix products.
Logix PRO (assembled form blocks)
DESCRIPTION
Logix Pro White in color
Logix Pro Platinum3 Offers higher R-value1 than Logix Pro.
Grey in color. Made with BASF Neopor.
Logix Pro TX Logix Pro with termite resistant additive
Preventol2. White in color.
Logix Pro Platinum3 TX Logix Pro Platinum with Preventol.
Grey in color.
Logix KD (unassembled form blocks)
DESCRIPTION
Logix KD White in color
Logix KD Platinum3 Offers higher R-value1 than Logix KD.
Grey in color. Made with BASF Neopor.
Logix KD TX Logix KD with termite resistant additive
Preventol2. White in color.
Logix KD Platinum3 TX Logix KD Platinum with Preventol. Grey
in color.
Notes:
1. See Section 8.5 for Logix R-values.
2. Preventol is an effective termite resistant additive.
3. Care should be taken to protect exposed foam surfaces from reflected sunlight and prolonged solar exposure
until wall cladding or finish material is applied. Shade exposed foam areas, or remove sources of reflective
surfaces, where heat build up onto exposed foam might occur. For more information refer to BASF Technical
Leaflet N-4 Neopor, “Recommendations for packaging, transporting, storing and installing building insulation
products made from Neopor EPS foam.” (The BASF Technical Leaflet is attached to every bundle of Logix
Platinum forms delivered to a job site).
1.2 – PRODUCT SPECIFICATION TABLE
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LOGIX® INSULATED CONCRETE FORMS
LOGIX
FORM
PANELS
STANDARD TAPER TOP BRICK LEDGE
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Conc.Core Thickness 4 6.25 8 10 12 4 6.25 8 10 12 4 6.25 8 10 12
Width Top1 9.5 11.75 13.5 15.5 17.5 9.5 11.75 13.5 15.5 17.5 13.375 15.625 17.375 19.375 21.375
Width Bot.1 9.5 11.75 13.5 15.5 17.5 9.5 11.75 13.5 15.5 17.5 9.5 11.75 13.5 15.5 17.5
Form Type2 KD/P KD/P KD/P KD/P KD KD KD/P KD/P KD/P KD KD/P KD/P KD/P KD/P KD
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Conc.Core Thickness 4 6.25 8 10 12 4 6.25 8 10 12
Width Top1 9.5 11.75 13.5 15.5 17.5 13.375 15.625 17.375 19.375 21.375
Width Bot.1 9.5 11.75 13.5 15.5 17.5 9.5 11.75 13.5 15.5 17.5
Form Type2 KD KD KD KD KD KD KD KD KD KD
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Conc.Core Thickness 4 6.25 8 10 12
Width Top1 17.25 19.5 21.25 23.25 25.25
Width Bot.1 9.5 11.75 13.5 15.5 17.5
Form Type2 KD KD KD KD KD
1. Width at Top and Bottom is measured from outside face to outside face of forms.
2. “KD” and “P” denotes Logix KD (unassembled forms) and Logix PRO (assembled forms), respectively.
1.2 – PRODUCT SPECIFICATION TABLE cont’d
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LOGIX® INSULATED CONCRETE FORMS
Left Hand Corner Form Right Hand Corner Form
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Form Type1 KD/P KD/P
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Form Type1 KD/P KD/P
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Form Type1 KD/P KD/P
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Form Type1 KD/P KD/P
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Form Type1 KD KD
(dimensions similar)
(dimensions similar)
(dimensions similar)
(dimensions similar)
(dimensions similar)
Form height = 16”
Form height = 16”
Form height = 16”
Form height = 16”
Form height = 16”
1. “KD” and “P” denotes Logix KD (unassembled forms) and Logix PRO (assembled forms), respectively.
1.2 – PRODUCT SPECIFICATION TABLE cont’d
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LOGIX® INSULATED CONCRETE FORMS
Left Hand 45o Form Right Hand 45o Form
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Form Type1 KD/P KD/P
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Form Type1 KD/P KD/P
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Form Type1 KD/P KD/P
(dimensions similar)
(dimensions similar)
(dimensions similar)
Form height = 16”
Form height = 16”
Form height = 16”
1. “KD” and “P” denotes Logix KD (unassembled forms) and Logix PRO (assembled forms), respectively.
1.2 – PRODUCT SPECIFICATION TABLE cont’d
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LOGIX® INSULATED CONCRETE FORMS
HALF HEIGHT STANDARD FORMS1
4 inch
Concrete Core Thickness
6.25 inch
Concrete Core Thickness
8 inch
Concrete Core Thickness
HALF HEIGHT CORNER FORMS1 HALF HEIGHT 45O FORMS1
Left Hand 45o Form Right Hand 45
o Form Left Hand 45
o Form Right Hand 45o Form
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Form height = 8”Form height = 8”
Form height = 8”Form height = 8”
Form height = 8”Form height = 8”
(dimensions similar)
(dimensions similar)
(dimensions similar)(dimensions similar)
(dimensions similar)
(dimensions similar)
1. Height of forms for Half Height Forms = 8 inches
1.2 – PRODUCT SPECIFICATION TABLE cont’d
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LOGIX® INSULATED CONCRETE FORMS
1.2 – PRODUCT SPECIFICATION TABLE cont’d
V12
Logix
FORM
PANELS
V12 STANDARD V12 TAPER TOP
V1
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Conc.Core Thickness 4 6.25 8 10 12 4 6.25 8 10 12
Width Top1 -11.75 13.5 ---11.75 13.5 --
Width Bot.1 -11.75 13.5 ---11.75 13.5 --
Form Type2 -KD/P KD/P ---KD/P KD/P --
V12 Left Hand Corner Form V12 Right Hand Corner Form
Form Type1 KD/P KD/P
V1
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Form Type1 KD/P KD/P
V1
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Form Type1 KD/P KD/P
1. Width at Top and Bottom is measured from outside face to outside face of forms.
2. “KD” and “P” denotes Logix KD (unassembled forms) and Logix PRO (assembled forms), respectively.
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LOGIX® INSULATED CONCRETE FORMS
LOGIX ACCESSORIES
Xtender Height Adjuster End Cap
Pilaster D-Rv Horizontal & Vertical Hooks
Pro Buck T-Walls Wall Insert Plate
Buck Brace Heat-Sheet XP-1 Curb Block
1.3 – ACCESSORIES
1.2 – PRODUCT SPECIFICATION TABLE cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.1 – INTRODUCTION ......................................................................................................................................2-4
2.2 – USEFUL TOOLS & MATERIALS ..................................................................................................................2-5
2.3 – ACCURATE FOOTINGS & SLABS ...............................................................................................................2-6
2.4 – WALL LAYOUT ........................................................................................................................................2-7
2.5 – PRODUCT HANDLING & PLACEMENT .......................................................................................................2-8
2.6 – JOBSITE EFFICIENCY ................................................................................................................................2-9
2.7 – LOGIX WALL CONSTRUCTION ................................................................................................................2-10
2.7.1 – THE FIRST COURSE ...................................................................................................................2-11
2.7.2 – THE SECOND COURSE ..............................................................................................................2-13
2.7.3 – ADDITIONAL COURSES .............................................................................................................2-16
2.7.4 – CORNER BRICK LEDGE ..............................................................................................................2-18
2.7.5 – KNOCK-DOWN FORMS ............................................................................................................2-20
2.7.5.1 – PRODUCT HANDLING ................................................................................................2-21
2.7.5.2 – ASSEMBLING AND INSTALLATION ..............................................................................2-21
2.7.5.3 – CORNER FORM SUPPORT ..........................................................................................2-22
2.7.6 – TEE WALLS .............................................................................................................................2-23
2.7.6.1 – FIELD-CUT T-WALLS ..................................................................................................2-24
2.7.7 – GABLE WALLS ........................................................................................................................2-25
2.7.8 – RADIUS WALLS .......................................................................................................................2-26
2.7.9 – LOGIX D-RV ............................................................................................................................2-27
2.8 – REINFORCEMENT ..................................................................................................................................2-28
2.8.1 – BASIC REINFORCEMENT ..........................................................................................................2-28
2.8.2 – HORIZONTAL & VERTICAL REINFORCEMENT .............................................................................2-29
2.8.3 – TYPICAL REINFORCEMENT AT OPENINGS .................................................................................2-30
2.8.4 – LINTELS ..................................................................................................................................2-31
2.9 – WINDOW & DOOR BUCKS .....................................................................................................................2-32
2.9.1 – LOGIX PRO BUCK ....................................................................................................................2-33
2.9.2 – TREATED PLYWOOD BUCK ......................................................................................................2-38
2.9.3 – SOLID WOOD BUCK ................................................................................................................2-39
2.9.4 – RADIUS OPENINGS ..................................................................................................................2-40
2.9.5 – METAL JAMBS ........................................................................................................................2-41
2.10 – ADDITIONAL FORM SUPPORT ..............................................................................................................2-42
2.11 – WALL BRACING & ALIGNMENT SYSTEM ...............................................................................................2-44
TABLE OF CONTENTS
2.0 – INSTALLATION GUIDE
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2.12 – FLOOR CONNECTIONS .........................................................................................................................2-45
2.12.1 - LEDGER WITH ANCHOR BOLTS & JOIST HANGERS ...................................................................2-45
2.12.2 – STEEL ANGLE IRON LEDGER ...................................................................................................2-46
2.12.3 – BRICK LEDGE FOR TOP & BOTTOM CHORD BEARING SYSTEMS ................................................2-48
2.12.4 – LEDGER WITH SIMPSON BRACKET & JOIST HANGERS ..............................................................2-49
2.12.5 – TRANSITION LEDGE ...............................................................................................................2-52
2.12.5.2 – TRANSITION LEDGE WITH CORNER BLOCKS .............................................................2-53
2.12.6 – TAPER TOP WITH SILL PLATE ...................................................................................................2-55
2.12.7 – CONCRETE FLOOR SYSTEMS ..................................................................................................2-56
2.12.7.1 – PRECAST CONCRETE FLOORS ...................................................................................2-56
2.12.7.2 – COMPOSITE FLOOR SYSTEMS ..................................................................................2-57
2.13 – ROOF CONNECTIONS ..........................................................................................................................2-58
2.14 – SERVICE PENETRATIONS ......................................................................................................................2-59
2.15 – CONCRETE PLACEMENT .......................................................................................................................2-60
2.15.1 – PRE-PLACEMENT CHECKLIST ..................................................................................................2-60
2.15.2 – MIX DESIGN ..........................................................................................................................2-61
2.15.3 – BEST PRACTICES ....................................................................................................................2-62
2.15.4 – PLACING CONCRETE ..............................................................................................................2-63
2.15.5 – POST-PLACEMENT CHECKLIST ................................................................................................2-64
2.16 – ELECTRICAL INSTALLATIONS ................................................................................................................2-65
2.17 – PLUMBING INSTALLATIONS .................................................................................................................2-66
2.18 – INTERIOR & EXTERIOR FINISHES ..........................................................................................................2-67
2.18.1 – VAPOR & AIR BARRIERS .........................................................................................................2-67
2.18.2 – INTERIOR DRYWALL ..............................................................................................................2-68
2.18.3 – EXTERIOR SIDING ..................................................................................................................2-69
2.18.4 – STEEL PANEL SIDING ..............................................................................................................2-70
2.18.5 – WOOD SIDING .......................................................................................................................2-71
2.18.6 – EIFS .......................................................................................................................................2-72
2.18.8 – CEMENT COMPOSITE SIDING ..................................................................................................2-73
2.18.9 – BRICK VENEER .......................................................................................................................2-74
2.18.10 – BELOW GRADE WATERPROOFING, DAMPPROOFING & PARGING ............................................2-75
2.18.10.1 – BELOW GRADE WATERPROOFING ...........................................................................2-75
2.18.10.2 – ABOVE GRADE PARGING ........................................................................................2-77
TABLE OF CONTENTS
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LOGIX® INSULATED CONCRETE FORMS
2.19 – ATTACHING FIXTURES .........................................................................................................................2-78
2.19.1 - LIGHT WEIGHT FIXTURES ........................................................................................................2-78
2.19.2 - HEAVY WEIGHT FIXTURES.......................................................................................................2-79
2.19.2.1 – CABINETS ................................................................................................................2-79
2.19.2.2 - GRAB BARS .............................................................................................................2-80
2.20 – HOLDING POWER OF SCREWS FASTENED TO LOGIX FURRING TABS ......................................................2-82
2.21 – RADIUS WALLS ...................................................................................................................................2-83
2.22 – TALL WALLS .......................................................................................................................................2-92
2.23 – SUPPORTING PRODUCTS .....................................................................................................................2-94
TABLE OF CONTENTS
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LOGIX® INSULATED CONCRETE FORMS
For builders who want a competitive edge, Logix offers solid products and friendly local service. Our products are
designed to perform better in the field, providing trouble-free, profitable installations time after time.
Our technical team is ready to respond to your queries with practical advice on quick and efficient installation. With
contractor training provided through our numerous regional technical support offices, help is always close at hand.
We are the most experienced ICF manufacturers in North America, manufacturing top quality products at our nine
plants located throughout the United States and Canada.
For more information, or to contact a Logix representative, visit our website at www.Logixicf.com and click “Contact
Us”. You can also register online to receive Logix updates.
This manual will be updated regularly. Current updates will be available at www.Logixicf.com.
2.1 – INTRODUCTION
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LOGIX® INSULATED CONCRETE FORMS
2.2 – USEFUL TOOLS & MATERIALS
• Pruning saw
• Cordless drill
• Screws
• Hot knife
• Electric chainsaw
• Fiberglass-reinforced tape
• Step ladder
• Rebar bender/cutter
• Internal vibrator
• Contractor-grade foam gun
• Low expansion foam adhesive
• Approved scaffold planks
• Transit or laser
• 48” (1220mm) level
• Bolt cutters
• String line
• Chalk line
• Wall alignment system (safety compliant)
• 36 inch (914 mm) plastic zip ties, or Logix Vertical &
Horizontal Hooks
• Concrete embedments
• Window and door buck material
• Sleeves for wall penetrations
NOTE: For more information on Logix Vertical &
Horizontal Hooks see Technical Bulletin No.20
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LOGIX® INSULATED CONCRETE FORMS
2.3 – ACCURATE FOOTINGS & SLABS
The first step to a successful Logix installation is an accurate footing or slab. This means a footing or slab that is:
• Code compliant
• Designed in accordance with construction drawings and specifications
• Designed taking into account soil conditions, seismic area, number of stories, building loads, and water
tables.
Cap all dowels for
safety compliance
The ideal increment for step footings
is 16 inches (406 mm) or 12 inches
(305 mm) to match the height of
Logix Standard or V12 forms.
Level footing to
within +/- 1/4” (+/-6
mm)
Place footing
dowels or keyways
as required per local
plan specification or
local building codes.
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LOGIX® INSULATED CONCRETE FORMS
Accurate wall layout is critical to ensure a complete and profitable Logix project.
Verify that wall layout is in accordance with plans and specifications.
In addition to straight Standard forms, Logix provides 450 and 900 corner form blocks. However, Logix can be easily
cut on-site to fit any corner angle or radius. See “2.7.8 – RADIUS WALLS” on page 26.
2.4 – WALL LAYOUT
To ensure 90o corners, use Logix 90o
Corners, and methods such as:
• Equal diagonal measurements
• 3-4-5 triangle
• Surveying
To ensure 45o corners, use
Logix 45o corner form units.
Snap chalk lines
on footings or slab
according to plan.
Make sure the outside
face of the forms line
up with the overall
building dimensions.
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LOGIX® INSULATED CONCRETE FORMS
2.5 – PRODUCT HANDLING & PLACEMENT
There are several methods to efficiently handle Logix forms. Unlike most ICF systems, the consistent 2-3/4 inch (70
mm) panel thickness on Logix forms means that handling damage is minimized.
• Logix Standard Forms arrive stacked on disposable skids.
• The forms are strapped together for easy handling.
• Unloading can be accomplished manually or using alternate lifting equipment.
• Standard forms can be moved by two people using two 2x4s
• Corner forms come in bundles of four or twelve, and can easily be carried by one or two people.
• Specialized dollies are another convenient way to move Logix bundles.
• When transporting forms on an open trailer, position the forms so the wind travels through the webs to
minimize drag.
• When tying forms down on an open trailer, ensure the forms are well secured and avoid form damage
from strapping materials.
• If job site conditions require form protection, Logix bundle bags can be ordered.
• Logix forms are produced to the tightest tolerance in the industry, with a length tolerance of +/-1/8 inch
(+/-3 mm), and a height tolerance of +/-1/16 inch (+/-2 mm).
When forms are unloaded, it is necessary to measure forms to determine uniform length and height. It is suggested
to measure 2 forms per skid. In the unlikely event that forms are out of spec, please contact the local Logix
representative immediately.
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LOGIX® INSULATED CONCRETE FORMS
2.6 – JOBSITE EFFICIENCY
An efficient jobsite means a faster and safer installation, and ultimately a higher quality finished project.
• Keep all materials and tools outside of the footing area until the chalk lines have been snapped and
the wall layout is complete. Generally, construction is accomplished from within the perimeter of the
structure.
• When wall layout is complete, place forms at least 7 feet (2.134 m) inside the perimeter of the footings
or slab to accommodate the wall alignment system.
• Space skids of standard forms around the inside of the entire perimeter.
NOTE: When placing courses of forms, always take forms from the closest skid. This will eliminate the effects of
normal manufacturing variations between skids.
• Periodic checking of dimensions ensures accurate wall construction.
• Additional materials that should be located within the perimeter:
• Window and door bucks
• Rebar (straight or pre-bent)
• Alignment system
• Approved scaffold planks
• Tools
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LOGIX® INSULATED CONCRETE FORMS
2.7 – LOGIX WALL CONSTRUCTION
When a form is cut, it can be identified using bars and webs. For example, a cut form with three bars, two webs,
and three bars will be referred to as a “3-2-3”.
By establishing a logical form pattern that takes into account the building dimensions, maximum efficiency will be
achieved. It is important that the building dimensions have a tolerance of +/-1/2” inch (13 mm) or a stacked vertical
joint will result. Such joints are acceptable if dimensions necessitate but will require additional form support on
both sides of the form.
When building dimensions are based on 4 feet (1.219 m) increments, it is suggested to alternate between left- and
right-hand corners within each course.
3 bars
(shown shaded)
3 bars
(shown shaded)
2 webs
Left-hand
corner form
Right-hand
corner form
Alternating corner forms
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LOGIX® INSULATED CONCRETE FORMS
2.7 – Logix WALL CONSTRUCTION cont’d
2.7.1 – THE FIRST COURSE
STEP 2: Continue placing forms along the chalk line.
STEP 3: Secure forms end-to-end to maintain building dimensions using zip ties or Logix Hooks.
STEP 1: Start first course at a corner and align with chalk
line.
Place form
blocks with
interlocks
facing up
Corner
form
Footing
or slab
Chalk line
Zip tie securing
forms.
Joint between
forms (shown
as dark lines for
clarity)
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LOGIX® INSULATED CONCRETE FORMS
2.7 – Logix WALL CONSTRUCTION cont’d
If more than 3 bars are extending beyond any web, additional form support is required on both faces of the form.
STEP 6: Continue around the wall in this manner until the first course is complete and dimensions are verified.
Leave the first course of forms in place across door openings and low windows until forms have been placed
and building dimensions have been verified to maintain the interlock pattern above openings.
At this point, determine if adjustments are needed to the building dimensions so the cut can be made on a line. If
adjustments are needed, alter chalk lines accordingly.
Wood strapping
as form support.
Fastened to
furring tabs.
‘x’ patterns mark
the location of
furring tabs and
web ties.
Joint between
forms (shown as
dark line).
Number of bars from web
(shaded). More than 3 bars
extending beyond a web
- requires additional form
support.
STEP 5: Cut a Standard form to fit the space left
between the corner and the previous Standard
form.
Standard
form cut to
suit
Determine if
cuts can be
made on a
line. (vertical
joint shown
in darker
line)
STEP 4: When forms are 4 ft or less from the second
corner, place the second corner form.
Corner
form
< 4 ft
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LOGIX® INSULATED CONCRETE FORMS
2.7 – Logix WALL CONSTRUCTION cont’d
STEP 7: Place necessary rebar in first course as specified and according to local code.
NOTE: Web ties are designed with ‘rebar slots’ to provide secure placement of horizontal rebar, and allows for non-
contact lap splices. See “2.8.2 – HORIZONTAL & VERTICAL REINFORCEMENT” on page 29.
STEP 8: Prior to starting the second course, install additional form support if required.
Place reinforcement and necessary additional form support prior
to installing the second course.
Rebar slots
Additional form
support
STEP 1: Starting at the original corner, place appropriate corner form. When possible, alternate between left- and
right-hand corners between courses. This will create a 16” offset.
NOTE: It is necessary to firmly seat every form to the form below to minimize interlock settling. The interlock system
is designed to secure forms betweens courses, which helps minimize form settling and movement during
installation and concrete placement.
STEP 2: Continue placing forms around the wall, working in the same direction as the first course.
Make sure to secure forms end-to-end, and between courses, with zip ties, Logix Hooks or foam adhesive.
16”
offset
Right-hand
Corner form
(shaded for
clarity)
Left-hand
Corner form
(shaded for
clarity)
2.7.2 – THE SECOND COURSE
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LOGIX® INSULATED CONCRETE FORMS
NOTE: Web ties are designed with ‘rebar slots’ to provide secure placement of horizontal rebar, and allows for
non-contact lap splices.
STEP 6: Confirm that the wall is straight and level. If
adjustment is required, shim or trim the bottom
of the wall until level is achieved.
STEP 5: Form Lock can also be placed in the second
course, if desired. Overlap Form Lock lengths by
roughly 8 inch (203 mm). Align the points of the
zigzag pattern in the Form Lock directly above
the webs.
Formlock is
placed directly
on the web
ties.
STEP 4: Place necessary rebar after completion of second
course.
STEP 3: All webs should line up vertically, except where
building dimensions are other than 8 inch (203
mm) increments. In this case, special cuts may
be required to allow vertical alignment of webs.
Webs are aligned when markers on the face of
the form are vertically aligned.
Vertically
aligned
markers
indicates
webs are
vertically
aligned.
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
When vertical joints are less than 8 inches (203 mm) apart, additional form support is required.
It is important to note that at this point the wall pattern has been established. Course number 1 will be the pattern
for all odd numbered courses (3, 5, 7, etc.). Course number 2 will be the pattern for all even numbered courses.
Wall alignment system to be installed at some point between the second and fourth courses, at no more than 7 feet
(2.134 m) intervals. See “2.11 – WALL BRACING & ALIGNMENT SYSTEM” on page 44.
STEP 7: Use foam adhesive to fasten the straightened and leveled wall to the footing or slab. Insert the nozzle 1
inch (25 mm) at the base of every other web along the chalk line, and shimmed and trimmed locations, and
inject foam between the block and the footing.
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.7.3 – ADDITIONAL COURSES
Installation of additional courses is the generally the same as the second course, described in the previous section.
STEP 1: Fasten every corner end-to-end to adjoining forms using zip ties, Logix Hooks, or adhesive foam.
Install Form Lock, if desired, every fourth of fifth course after the second course.
STEP 2: After completion of each course, place necessary rebar as specified and according to local code.
STEP 3: Secure forms end-to-end in the top course to maintain building dimensions.
STEP 4: Secure the top course to the forms below on both sides to prevent tipping during concrete placement.
STEP 5: If additional stories are planned, the interlock
needs to be protected prior to concrete
placement.
1x strapping
fastened to
furring tabs at
corners.String line
Check for
straightness
between
wall and
string using
1x piece.
STEP 6: Check building dimensions. Check corners for
plumb.
Ensure straight walls by placing a string at the
top course set off from the wall using 3/4 inch
pieces of wood placed in the corners. Check for
straightness by running another 3/4 inch piece of
wood between the string and wall.
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
When vertical joints are less than 8 inches (203 mm) apart additional form support is required.
If you need to stack identical corners in subsequent courses, you will need to provide additional form support where
the stacked joints are created.
Vertical stacked joints requires additional form support.
Example of
stacked identical
corners (Right-
hand corners
shown) - results
in stacked
vertical joint.
Hold all reinforcement back 2 inches (51 mm) from door and window buck material to ensure proper concrete
coverage.
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.7.4 – CORNER BRICK LEDGE
Brick Ledge forms come only in straight units, so mitered cuts on site must be made to create corners with these
blocks. Two methods can be used:
1. Freehand miter cutting.
2. Using a template.
NOTE: On a 6.25 inch (159 mm) Logix Brick Ledge always start a miter cut in the middle of the first web beyond the
corner form.
Extending a Brick Ledge block two webs beyond the corner block and making the cut will create a remaining
piece that can be used for an inside corner elsewhere in the layout.
2.7 – Logix WALL CONSTRUCTION cont’d
Start cut here
at middle of
first web.
Place web 3 bars
beyond corner edge
to make sure webs
stay aligned (shaded
for clarity)Corner form
Keep tip of saw
against this edge
all the way to
completion of
the cut.
The cut should
follow this cut
line, and meet at
the corner edge
below it.
STEP 1: With the first Brick Ledge block, make a miter
cut on the Brick Ledge panel.
Miter cut the second Brick Ledge panel in a
manner similar to the first miter cut.
Cut the
other panel
to create a
butt joint
with the
first Brick
Ledge cut.
STEP 3: With the second Brick Ledge block, make similar
miter and butt-joint cuts.
Butt
joint Miter
cut
STEP 4: Place both cut Brick Ledge blocks to create the
Brick Ledge 90o corner.
After making the
miter cut in a
Brick Ledge panel,
cut the other
panel flush to the
form below it.Brick Ledge panel
with a miter
cut (shaded for
clarity).
STEP 2: With the first Brick Ledge block, make a butt-
joint cut flush to the form below.
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LOGIX® INSULATED CONCRETE FORMS
2.7 – Logix WALL CONSTRUCTION cont’d
Install 2ft x 2ft bent 90o
rebar, or as specified.Install stirrups in
each Brick Ledge
cavity, including
every corner.
Non-contact lap
splices permitted
between
horizontal and
bent corner rebar.
Remove foam from
the corner cavity area
to facilitate the flow
of concrete into the
corner cavity.
Brick Ledge
rebar slot.
Butt joint
rebar placed
in Brick Ledge
rebar slot.
STEP 6: Place rebar, as required,and remove foam from
cavity where necessary.
STEP 5: Secure the corner Brick Ledge with tape and
foam.
Securely tape and foam
the mitered corner,
applying several rows
of tape.
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LOGIX® INSULATED CONCRETE FORMS
2.7.5 – KNOCK-DOWN FORMS
Logix Knock-down forms (Logix KD) are designed to offer the same benefits as the Logix solid forms (Logix PRO).
However, Logix KD forms also
• reduce shipping costs and inventory requirements
• accommodates tilt-up wall panel construction
• allows hassle-free assembly of forms around complex rebar patterns (i.e. stirrup or rebar cage pattern in
walls)
• allows custom block configurations (i.e. Taper Top-Brick Ledge, etc…)
Logix KD Standard Form - disassembled view.
Logix KD Standard Form - assembled view.
Knock-down ties (KD connectors)
connect to the embedded furring tabs
within the form panels.
Form panelsFurring tabs
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.7.5.1 – PRODUCT HANDLING
2.7.5.2 – ASSEMBLING AND INSTALLATION
There are several methods to efficiently handle Logix KD forms. The high foam density and consistent 2-3/4 inch (70
mm) panel thickness on Logix KD means that handling damage is minimized.
The forms arrive on-site unassembled. KD Connectors and panels arrive on-site packaged in boxes and bundled in
stacks, respectively.
Furring tabs
embedded in
the form panels
at 8” on center.
Furring tabs
provide solid
attachment areas
for drywall,
cladding and
other wall
attachments.
Top and bottom KD connectors
are required for each furring tab.
Connectors are inserted with
rebar slots facing up.
Form
panels
Zip tie adjacent
forms at the fixed
ends of the ties.
Joint between forms
(shown in dark lines for
clarity)
As the forms are assembled on-site they are stacked in place to form the walls. Stacking the blocks, including
required tools and methods, are the same when using Logix Pro forms.
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.7.5.3 – CORNER FORM SUPPORT
Example of outside corner form support for KD forms.Example of inside corner form support for KD forms.
For any type of ICF knock-down system it is good practice to provide additional form support at the corners.
To ensure a safe and proper concrete pour the following corner form support is recommended:
• Using 2.5 inch (64 mm) wood screws to fasten 2x6 vertically to the embedded furring tabs on both sides
of the corner.
• For outside corners wrap steel strapping around the corners. For the bottom third of the concrete pour
height evenly space two strappings for each course. Then one strap per course for the remaining pour
height. Using 1.5 inch (38 mm) wood screws the bands should attach to at least two furring tabs that
extend beyond the 2x6 on both sides of the corner.
• For inside corners apply typical bracing as required.
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.7.6 – TEE WALLS
Wall T-junctions can be constructed using Logix T-walls, or by field-cutting Logix Standard forms.
Logix T-walls arrive to the job site assembled or disassembled. When assembled Logix T-walls provide sizes that are
commonly used in construction. Each T-wall size comes in two different shapes, a long and short section, so that a
running bond pattern is created when the T-wall forms are stacked.
Installation of Logix T-walls is straightforward. As with all Logix forms, the T-walls are stacked in the usual running
bond pattern, and follows the same basic installation instructions detailed in “2.7 – LOGIX WALL CONSTRUCTION”
on page 10.
Logix T-wall
Sizes Description
4 to 6 4” connected to 6.25” Logix
4 to 8 4” connected to 8” Logix
4 to 10 4” connected to 10” Logix*
4 to 12 4” connected to 12” Logix*
6 to 6 6.25” connected to 6.25” Logix
6 to 8 6.25” connected to 8” Logix
6 to 10 6.25” connected to 10” Logix*
6 to 12 6.25” connected to 12” Logix*
* Assembled without diagonal ties.
4” or 6.25”
concrete
thickness
6.25”, 8”, 10”
or 12” concrete
thickness
4” or 6.25”
concrete
thickness
Logix T-Wall
Long
Logix T-Walls stacked
Logix T-Wall Short
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.7.6.1 – FIELD-CUT T-WALLS
When necessary, t-walls can be made field cutting Standard forms, or straight blocks.
Another option for building a t-wall is to construct the entire continuous wall first. This method requires pre-
planning to ensure there is adequate reinforcement at every course to allow the t-wall to be attached securely. All
other steps above need to be applied.
Use a felt-tip marker
to mark on the
continuous wall
where the ICF will
create a t-junction.
Mark from the inside
face of the ICF and
cut away the foam
section.
Complete a course of the
continuous wall.
When the entire wall has been checked for plumb and square, apply
foam adhesive to the butt joints, and install additional form support,
as required.
For each course use a ziptie or tie wire to support
the ICF at the t-junction. Wrap the ziptie or tie
wire around the horizontal rebar and to the web
tie closest to the t-junction.
Stiffen the web
tie by placing a
short length of
rebar behind it.
Install bent rebar,
as required.
Each course of
t-wall should
have a continuous
horizontal rebar, or
a minimum of 3 feet
length of rebar, at
the t-wall junction.
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.7.7 – GABLE WALLS
The preferred method to construct a gable end is on the floor to be installed as a one-piece unit.
Prior to lifting the gable wall into place, ensure that appropriate
wall alignments and scaffolding system is in place for safe
installation.
Stack forms to build the gable
wall.
Include necessary rebar.
Connect forms with zip ties and
foam adhesive.
NOTE: To minimize
waste, only extend
forms beyond gable
dimensions, as
necessary.
Snap a chalk
line to outline
the gable slope,
and cut along
the chalk line
with a pruning,
reciprocating or
other type of saw.
Screw 1x4s along the cuts on
both sides of the wall, and lift
the gable wall into place using
appropriate lifting equipment
Make sure all necessary roof attachment hardware is available prior to concrete placement, as it must be installed
during or immediately after the pour.
NOTE: Pieces of plywood can be screwed into the 1x4s during placement to help contain the concrete.
Another option for constructing a gable wall is to assemble the gable in place. Set the pitch for the gable by
marking the first course appropriately. Subsequent courses should follow this pattern.
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.7.8 – RADIUS WALLS
There are a number of different methods for creating radius walls with Logix. Below, is a guide that will create
radius walls based on 8 inch segments of Logix.
NOTE: This process will result in vertically stacked joints, and additional form support will be required prior to
concrete placement.
See “2.21 – RADIUS WALLS” on page 83, for radius wall tables.
8”
STEP 1: Cut forms into 8” sections with web centered in
each section.
STEP 3: Cut the 8” section at the edges along the radius
lines. Mark and cut all form sections using this
template.
STEP 2: Mark radius lines for an 8”cut section.
STEP 4: Connect and secure sections with zip-ties, tapes
and foam to create the first course. Repeat the
steps for each additional course, and connect
each with zip ties or Logix hooks.
Mark the inside and
outside diameter of
the radius wall on the
footing or slab
Mark a radius line and center
a cut form section, and align
corner edges of form to the
outside diameter
From corner edges of
form mark two more
radius lines.
Cut the form section
along these radius lines.
2.7 – Logix WALL CONSTRUCTION cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.7.9 – LOGIX D-RV
Logix D-Rv™ are 2 inch thick foam panels made with a drainage layer. It provides a quick and easy alternative to
providing drainage with the added benefit of increasing the R-value of a Logix wall assembly.
Slots align with web ties
within the Logix forms.
D-Rv panel with drainage pattern.
The D-Rv slots align with
web ties to allow full
insertion of the D-Rv panels.
D-Rv panels snap and lock into place against the inside face of Logix
forms without the need for fasteners or adhesives.
Insert the D-Rv panels with the
drainage pattern facing the
inside face of the ICF.
Web ties
(The drainage layer may be required, either by code or design, when a direct applied finish, such as stucco, is used
on an exterior ICF wall).
Logix D-Rv can be installed into the Logix form blocks either before or while the form blocks are stacked to build the
wall. This speeds up the construction process and eliminates the need to apply the drain layer to the exterior face
after a Logix wall has been built.
Offsetting the vertical joints of the D-Rv™ panels with the vertical joints of the Logix forms will create a stronger,
more rigid wall structure.
For more information contact your local Logix representative or see Technical Bulletin No. 36, Logix D-Rv™ in the
Logix Technical Library.
2.7 – Logix WALL CONSTRUCTION cont’d
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2.8 – REINFORCEMENT
2.8.1 – BASIC REINFORCEMENT
Reinforcing steel (rebar) strengthens concrete walls to help minimize cracking and buckling under load due to
backfill, wind, and other loads. Rebar also helps control cracking due to temperature swings and shrinkage.
Vertical
reinforcement
Horizontal
reinforcement
• Reinforcing steel must meet the requirements of ASTM A615, ASTM A996, or ASTM A706 for low-alloy steel.
Minimum of Grade 40 (300MPa).
• Reinforcing steel in a Logix wall must have minimum 3/4 inch (19 mm) concrete cover.
• Hold the reinforcement back from door and window openings by 2” (51 mm), or as required by design, or
local building codes.
• Refer to Section 6, Engineering for the Logix prescriptive engineering tables.
• It is the responsibility of the installer to verify table rebar specifications with local building codes and
engineering specs.
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2.8.2 – HORIZONTAL & VERTICAL REINFORCEMENT
It is the responsibility of the installer to verify table rebar specifications to comply with local building codes and
engineering specs.
Refer to Section 6 for Logix prescriptive engineering tables, and Section 5.2.1 for typical reinforcement details.
Rebar slots in the web ties allow for non-contact lap splices of
horizontal rebar, the preferred method when creating lap splices.
Mi
n
.
2
4
”
l
a
p
s
p
l
i
c
e
le
n
g
t
h
,
o
r
a
s
r
e
q
u
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r
e
d
by
d
e
s
i
g
n
,
o
r
l
o
c
a
l
bu
i
l
d
i
n
g
c
o
d
e
s
.
Horizontal rebar
(shown in blue),
sized as required,
should be placed
in the wall as each
course is installed.
Alternate rebar
location, course
by course, to
allow support and
positioning of
vertical rebar.
Vertical rebar
diameter will dictate
horizontal offset
from course to
course.
Rebar slots within
the web ties help
keep the rebar
secure.
Install all vertical
rebar after all
courses and
horizontal rebar has
been placed.
Horizontal
cold joint.
Extend v
e
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t
i
c
a
l
reinforc
e
m
e
n
t
above co
l
d
j
o
i
n
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b
y
min. 40 x
v
e
r
t
i
c
a
l
bar diam
e
t
e
r
,
o
r
a
s
required
b
y
design,
or local b
u
i
l
d
i
n
g
codes.
2.8 – REINFORCEMENT cont’d
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2.8.3 – TYPICAL REINFORCEMENT AT OPENINGS
It is the responsibility of the installer to verify table rebar specifications to comply with local building codes and
engineering specs.
Refer to Section 6 for lintel reinforcement tables, and lintel details.
Lintel reinforcement. Refer to Section
6 for lintel reinforcement tables.
Keep horizontal and vertical
reinforcement around
openings 1.5” to 2” max.
from face of concrete
to center of rebar, or as
required by local building
codes, or design.
Opening
to face of
concrete
Bottom lintel
reinforcement
Extend vertical
reinforcement at
jambs to full height
of wall.
Use #5 (15M) rebar
and match the
number of bars used
for bottom lintel
reinforcement.
Extend horizontal
reinforcement at sill and
header min. 24” beyond
opening, or as spec’d.
Place vertical
reinforcement under
windows, if required.
Reinforcement at sill.
Use #5 (15M) rebar
and match the
number of bars used
for bottom lintel
reinforcement.
2.8 – REINFORCEMENT cont’d
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2.8.4 – LINTELS
Appropriate lintel rebar should be placed in the proper sequence directly above doors and windows to carry loads
over these openings.
Buck material.
Logix Pro Buck
shown.
Bottom lintel reinforcement.
Provide 1.5” to 2” max clearance from
inside face of buck to center of rebar,
or as specified.
Extend bottom lintel
reinforcement min.
24” beyond opening,
or as specified.
Before placing forms across the top of door or window openings, rest
the bottom lintel bar(s) on buck material.
Use the stirrups to hang the bottom lintel rebar from
the top steel. Depending on lintel depth and stirrup
shape, it may be easier to rest the stirrups in place
with the bottom lintel rebar before placing forms
above the top buck.
Install forms across the top of the
buck up to the specified lintel depth.
Trim the forms when necessary to
suit the opening.
Suspend the top
lintel rebar from the
top of the form using
tie wires and short
pieces of rebar or 1x.
NOTE: Form Lock can be installed across the entire length of the lintel span. In some cases it may be required to
install top lintel rebar before installing Form Lock, in order to achieve necessary concrete cover.
Refer to Section 6 for lintel reinforcement tables, and lintel details.
2.8 – REINFORCEMENT cont’d
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2.9 – WINDOW & DOOR BUCKS
Bucks provide attachment surfaces for windows and doors while holding back concrete from these openings during
concrete placement. Mark the center and edges of openings as you place courses and cut blocks as needed.
Refer to the rough opening (R/O) dimensions for windows and doors. Provide for openings in the wall taking
into consideration the thickness of the chosen buck material. See window and door manufacturer info for R/O
dimensions.
Cross bracing is required for all window and door bucks approximately 18 inches (457 mm) on center to help
withstand the pressures of concrete placement.
Window and door openings within 4 feet (1.220 m) of corners require additional horizontal strapping from corner
to across the opening.
Prior to placing window or door buck, confirm that bottom lintel rebar has been installed.
Bucks can be made from EPS foam, lumber or vinyl. Logix Pro Buck, made of dense EPS foam, is recommended for
use with Logix ICF.
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2.9.1 – LOGIX PRO BUCK
1.5” deep fins
provide friction fit
support, and barrier
against wind-driven
rain.
Furring strips are molded with
Tie-back Loops.
Anchors Pro Buck to concrete
providing direct load path for
fasteners to concrete.
Acts as rebar chair providing 1.5”
concrete cover around openings.
Secures to Logix ICF web ties
using zip-ties for additional
support.
Exposed furring strips at 8” on
center across width of Pro Buck for
fastening window or door framing,
and along the Pro Buck fins for
picture framing.
Exposed
internal furring
strips
Available
in 4 ft
lengths
Lapped end joints
create a continuous
thermal break.
Top side
Under
side
1.5”
Fits Logix
4”, 6.25”
and 8” ICF
Recommended for use with Logix ICF is the Logix Pro Buck system. Designed for Logix, Pro Buck creates a complete
thermal break in window and door openings. And unlike wood and vinyl bucks, Pro Buck is light weight, faster and
easier to install, while creating little job site waste. For more information refer to the Logix Pro Buck Installation
Guide.
For efficiency, a table long enough to accommodate connecting and cutting Pro Buck sections together is
recommended. This can be done by simply using a pair of sawhorses and a section of plywood, or 2x lumber, such as
2x10 or 2x12 pieces.
2.9 – WINDOW AND DOOR BUCKS cont’d
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STEP 4: Continue installing forms above the opening.
Use zip ties around the tie-back loop to secure
the Logix forms to the Pro Buck at the header.
Rebar for the lintel can be placed
and tie-wired onto the tie-back
loops providing a 1.5” cover.
STEP 3: Install Pro Buck at the sill. To avoid debris in
the wall cavity, cut min. 4” port holes at 16” on
center before placing in the opening.
Cut the lapped ends to fit
the width of the opening
between the Pro Buck jamb
pieces.
Port holes provide access for
adequate concrete placement and
consolidation.
The foam cut out for the access ports
can be replaced after the pour, or the
concrete can be brought flush to the
face of the opening.
When the walls are built to the height of the opening installation of the Pro Buck can begin. The rough opening is
measured between the Pro Bucks. Therefore, to account for the 1.5” thickness of Pro Buck, the opening in the Logix
ICF wall should be cut 3” wider and 3” taller than the rough opening.
STEP 1: Assemble Pro Buck for the jambs, and cut the
lapped ends to fit the height of the opening
minus 1.5”, which is the thickness of the Pro
Buck at the header.
At the jambs, cut the
lapped ends to create
a butt joint at the sill
and header ends.
STEP 2: Install Pro Buck at the header. Cut the lapped
ends to fit the entire width of the opening. The
ends of Pro Buck will sit directly on the Pro Buck
jamb pieces.
Pro Buck for the header
will sill directly on top of
the Pro Buck jamb pieces.
Cut a 2x to fit the width of the opening between the two Pro Buck
jambs. The 2x should be centered and fastened to the exposed Pro
Buck furring strips before setting into place. This will stiffen the Pro
Buck, and prevent excessive deflection when placed.
Secure Pro Buck to Logix
ICF by fastening through
the form panels and into
the Pro Buck’s internal
furring tabs using
fasteners with washers.
2.9 – WINDOW AND DOOR BUCKS cont’d
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Once the Pro Buck pieces are placed in the opening add 2x wood bracing, and Pro Buck Brackets, to secure the Pro
Bucks during concrete placement. Wood screws are recommended when fastening wood bracing to Logix Pro Buck.
NOTE: Using a membrane flashing is recommended to cover the joints between Pro Bucks and the Logix blocks.
Cut 2x wood sections to
support vertical bracing every
2 ft. Add additional wood
sections at corners. Fasten to
furring strips.
Cut 2x wood sections at jambs
to fit snug between top horiz.
2 x wood piece and bottom 2
x wood sections. Center and
toe-nail into place and fasten
to furring strips.
Cut vert. 2x wood sections to
fit snug between top horiz. 2
x wood piece and bottom 2 x
wood sections. Toe-nail into
place.
Cut horiz. 2x wood sections
to fit snug between 2 x wood
jamb pieces, and toe-nail into
place. Fasten vertical bracing
to horizontal bracing. Provide
every 2 ft.
Fasten Pro Buck bracket to
the wood bracing for added
support and to help maintain
squareness.
Provide picture framing every
8” at the sides to secure Pro
Bucks if there are more than
3 foam bars unsupported by
a web along the sides of the
opening. Fasten to internal
furring strips1 with Wind Devils
or equivalent2
1. Internal furring strips are easy to locate as they are in the same spot as the exposed furring strips that run across the face of Pro Buck.
2. Wind Devil fasteners are available from www.wind-lock.com. Finishes such as stucco, or acrylic textured finishes can be applied directly over
Wind Devil fasteners.
Internal furring strips1
2.9 – WINDOW AND DOOR BUCKS cont’d
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Non-corrosive wood screws are recommended for the attachment of window or door frames. Inset or flanged
windows and doors are fastened to the furring strips molded into the Logix Pro Buck. The furring strips are
anchored into the concrete providing proper load transfer from the window/door to the concrete substrate.
To determine the fastener type and spacing for load rated windows and doors, withdrawal and lateral load
resistance of specific fasteners are provided below.
Direct Fastening to Furring Strips
Allowable Withdrawal1 Allowable Lateral1
#6 wood screw, min 1” long 30 lb 72 lb
#8 wood screw, min 1.25” long 38 lb 188 lb
#10 wood screw, min 1” long 34 lb 90 lb
1. Withdrawal factor of safety = 5, allowable lateral load based on the lesser of factor of safety of 3.2 or 75% of proportional
limit. Based on independent fastener testing conducted by QAI Laboratories, in accordance with ASTM D1761, and ASTM E2634.
Where heavier load conditions are expected, mullion anchorage or where fixtures may not align with furring strips
for proper fastening, such as door hinges, the Logix Wall Plate Inserts are recommended. The Wall Plates provide
additional fastening edges between Pro Buck furring strips, and provide stronger fastener resistance. Withdrawal
and lateral load resistance of specific fasteners are provided below.
Direct Fastening of Logix Wall Plate
Allowable Withdrawal1 Allowable Lateral1
#8-18x1” long self-tapping screw 102 lb 142 lb
#10-16x1.5” long self-tapping screw 106 lb 171 lb
1. Withdrawal factor of safety = 5, lateral resistance factor = 0.5 & 0.53 for #8 and #10 screws, respectively. Based on
independent fastener testing conducted by QAI Laboratories, in accordance with ASTM D1761, and ASTM E2634.
To insert Logix Wall Plate cut a narrow slit on the face of Pro Buck.
10”1.5”
Pre-drilled holes
allow quick
attachment to
furring strips.
Punched holes in the
embed plate provides
strong anchorage to
concrete.
Logix Wall Plate
The Wall Plate securely anchors into the
concrete core. When placed transversely
to the opening holes punched in the Wall
Plate allow for the placement of perimeter
reinforcement.
Wall Plate at back side of Pro Buck
Bracing support for
opening can support
the Wall Plate during
concrete placement.
Wall Plate at front face of Pro Buck
2.9 – WINDOW AND DOOR BUCKS cont’d
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Non-corrosive wood screws are recommended for the attachment of window or door frames. Inset or flanged
windows and doors are fastened to the furring strips molded into the Logix Pro Buck. The furring strips are
anchored into the concrete providing proper load transfer from the window/door to the concrete substrate.
To determine the fastener type and spacing for load rated windows and doors, withdrawal and lateral load
resistance of specific fasteners are provided below.
Direct Fastening to Furring Strips
Allowable Withdrawal1Allowable Lateral1
#6 wood screw, min 1” long30 lb72 lb
#8 wood screw, min 1.25” long38 lb188 lb
#10 wood screw, min 1” long34 lb90 lb
1. Withdrawal factor of safety = 5, allowable lateral load based on the lesser of factor of safety of 3.2 or 75% of proportional
limit. Based on independent fastener testing conducted by QAI Laboratories, in accordance with ASTM D1761, and ASTM E2634.
Where heavier load conditions are expected, mullion anchorage or where fixtures may not align with furring strips
for proper fastening, such as door hinges, the Logix Wall Plate Inserts are recommended. The Wall Plates provide
additional fastening edges between Pro Buck furring strips, and provide stronger fastener resistance. Withdrawal
and lateral load resistance of specific fasteners are provided below.
Direct Fastening of Logix Wall Plate
Allowable Withdrawal1Allowable Lateral1
#8-18x1” long self-tapping screw102 lb142 lb
#10-16x1.5” long self-tapping screw106 lb171 lb
1. Withdrawal factor of safety = 5, lateral resistance factor = 0.5 & 0.53 for #8 and #10 screws, respectively. Based on
independent fastener testing conducted by QAI Laboratories, in accordance with ASTM D1761, and ASTM E2634.
To insert Logix Wall Plate cut a narrow slit on the face of Pro Buck.
10”1.5”
Pre-drilled holes
allow quick
attachment to
furring strips.
Punched holes in the
embed plate provides
strong anchorage to
concrete.
Logix Wall Plate
The Wall Plate securely anchors into the
concrete core. When placed transversely
to the opening holes punched in the Wall
Plate allow for the placement of perimeter
reinforcement.
Wall Plate at back side of Pro Buck
Bracing support for
opening can support
the Wall Plate during
concrete placement.
Wall Plate at front face of Pro Buck
Pro Buck can also be installed length wise along the opening and temporarily fastened to the furring strips at pre-
drilled holes, if required.
2.9 – WINDOW AND DOOR BUCKS cont’d
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2.9.2 – TREATED PLYWOOD BUCK
Following are several methods for building bucks. Regardless of the method chosen, pre-planning is required to
optimize chosen finish materials.
STEP 1: Rip 3/4 inch (19 mm) treated plywood to full form width.
STEP 2: Rip treated 2x4 diagonally on table saw at 180o angle.
STEP 3: Assemble buck with appropriate fasteners with 2x4s creating a dovetail detail.
STEP 4: Assemble buck sides and top with access holes cut in bottom piece for placement of concrete. Two 2x4s can
also be used for the bottom to allow concrete placements.
STEP 5: Place pre-assembled buck in opening and fasten in place with foam adhesive. The buck can also be installed
in opening as separate pieces.
STEP 6: Install temporary cross bracing to withstand concrete pressure. Attaching screws through the buck and into
closest webs can provide additional buck support.
NOTE: Pressure treated wood for window bucks are normally required only if the bottom of the window buck
frame is located at or below ground level. Check with local building codes to determine if your area requires
pressure treated window bucks.
2.9 – WINDOW AND DOOR BUCKS cont’d
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2.9.3 – SOLID WOOD BUCK
STEP 1: Choose appropriate wood product based on the dimension of the forms:
• 4” (102mm) form: 9.5” (241mm)
• 6.25” (159mm) form: 11.75” (298mm)
• 8” (203mm) form: 13.5” (343mm)
• 10” (254mm) form: 15.5” (394mm)
STEP 2: Cut top piece of buck to fit the width of the opening.
STEP 3: Cut sides of buck, remembering that the top piece rests on the side pieces.
STEP 4: Cut two 2x4s for the bottom to allow concrete placement.
STEP 5: Assemble buck and place in opening.
STEP 6: Once the buck is in place, it must be centered and secured. This can be done by attaching 1x4s to the edges
of the buck, extending the edge of the 1x4 over the foam to hold the buck firmly in place. Alternately, the
buck can be secured with foam adhesive and tape.
STEP 7: Solid wood bucks will require additional concrete anchors to create a permanent attachment to the
concrete.
2.9 – WINDOW AND DOOR BUCKS cont’d
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2.9.4 – RADIUS OPENINGS
Radius windows and doors can be assembled at the site with shortened pieces of Logix Pro Buck or lumber buck
material.
STEP 1: Create the template for the radius opening with OSB or plywood that matches door or window rough
opening.
STEP 2: Using template, draw outline of radius on wall, allowing for buck material thickness. Cut accordingly.
STEP 3: Cut buck material into approximately 4 inch (102 mm) widths to create radius buck.
STEP 4: Cut side and bottom buck pieces. Leave openings in the bottom piece for concrete placement and
consolidation.
STEP 5: Assemble buck pieces in the opening in the following order:
• bottom
• sides
• radius top
STEP 6: Once the buck is in place, it must be centered and secured. This can be done by attaching 1x4s to the edges
of the buck, extending the edge of the 1x4 over the foam to hold the buck firmly in place. Alternately,
the buck can be secured with foam adhesive and tape. Insert the radius template in opening to provide
additional support.
STEP 7: Solid wood bucks will require additional concrete anchors to create a permanent attachment to the
concrete.
2.9 – WINDOW AND DOOR BUCKS cont’d
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2.9.5 – METAL JAMBS
Metal jambs are typically used in commercial applications. Many metal jamb companies will pre-bend jambs to fit
Logix forms. Contact your local Logix representative for more details.
Buck material. Logix Pro Buck
shown.
Logix Wall Plate.
Metal jambs can be
fastened directly to the
Logix Wall Plates, which
are anchored to the
concrete.
2.9 – WINDOW AND DOOR BUCKS cont’d
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2.10 – ADDITIONAL FORM SUPPORT
The time spent prior to concrete placement pays huge dividends in job efficiency, accuracy, and profitability.
Provide wood strapping on both sides of Logix when
there are more than 3 bars beyond a web.
More than 3 bars from
web (shown shaded).
Fasten strapping to
embedded furring tabs.
Vertical joint
between Logix forms
(shown as a dark line)
Provide wood strapping on both sides of Logix when
vertical joints are directly on top of each other, or offset
between joints is less than 8” between courses.
Provide wood strapping on both sides of Logix at
window and door openings less than 4 feet from
a corner. Run strapping across opening. Fasten to
embedded furring tabs, and bracing around openings.
Wood strapping is required around window and door
openings to maintain straightness. In addition, cross
bracing with 2x4 supports is required inside window and
door bucks to hold bucks in place and prevent sagging.
Use foam adhesive on bucks to provide additional buck
support.
Vertical joint (shown as
dark line for clarity)
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LogixICF.com | 030321 | 2 - 43Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
2.10 – ADDITIONAL FORM SUPPORT Cont’d
NOTE: All forms should be firmly seated to prevent
settling.
Foam adhesive should be used to secure all Height
Adjusters.
Height Adjusters
All outside corners can be reinforced with tape, or wood
strapping, and zip ties.
Outside corner
reinforced with
wood strapping.
The top course and lintels should be secured with
adhesive foam, zip ties, or Logix Horizontal and Vertical
Hooks.
Logix blocks
secured with zip
ties.
Radius walls should be secured with foam adhesive and
flexible strapping material.
Strips of plywood
sheathing used as
flexible strapping to
secure radius walls
during concrete
placement.
The middle of large openings should be vertically braced
to prevent tipping.
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LogixICF.com | 030321 | 2 - 44Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
2.11 – WALL BRACING & ALIGNMENT SYSTEM
A bracing system provides support for the wall and acts an alignment system to keep the walls straight and plumb
during concrete placement. Typically, the wall alignment system is installed on the inner side of the Logix wall, and
installed after placing 2 to 4 courses of Logix forms (depending on wind and other conditions).
STEP 1: Upright steel
channel with slots for screw
attachments. Attach to the
Logix furring tabs with a hex
head #10 screw in each course.
The screws should be snug but
not tight. Always place screws
near the top of the slots to
accommodate settling at the
interlock during concrete
placement.
STEP 2: Attach turnbuckle arm
to the upright with a bolt and
then secure to the floor or
ground. In light or sandy soil,
additional care must be taken
to secure diagonal turnbuckle.
STEP 3: Insert scaffold
bracket behind the top of the
turnbuckle and secured at the
bottom with an additional
bolt.
STEP 4: Place appropriate
scaffolding planks and
rails according to safety
regulations. For requirements
on toe board and handrail
configuration, consult OSHA/
OHSA.
Recommended minimum spacing and bracing locations:
• no more than 2 feet (0.610 m) from each corner or wall end, and every 7 feet (2.134 m) or less thereafter,
in accordance with OSHA/OHSA requirements.
• on either side of every door and window opening.
• along door and window openings that span more than 6 feet (1.829 m)
NOTES: Prior to concrete placement, make certain walls are aligned perfectly plumb, or leaning slightly inward. The
wall must not lean out at all.
A string line must be used to achieve straight walls. See Section “2.7.3 – ADDITIONAL COURSES” on page
16.
Before, during and after concrete placement, the diagonal turnbuckle arm is used to adjust wall straightness
to stringline.
Proprietary bracing systems are available through ICF dealers or bracing suppliers.
For tall wall bracing and alignment see Section 3.2, Tall Wall Bracing Systems.
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LOGIX® INSULATED CONCRETE FORMS
2.12 – FLOOR CONNECTIONS
Any type of floor system can be easily integrated with Logix. For any questions or assistance, please contact your
local Logix representative.
2.12.1 - LEDGER WITH ANCHOR BOLTS & JOIST HANGERS
Concrete poured flush to face of Logix at
anchor bolt locations.
STEP 3: Place concrete.
Attach joist hangers to ledger according to
hanger manufacturers specifications.
STEP 4: Install joist hangers.
STEP 1: Snap chalk lines and cut openings for bolt
locations.
Snap chalk lines to
mark the top and
bottom of ledger.
Cuts are flared
to accommodate
proper concrete
placement.
Cut openings at
bolt locations.
The quantity and
spacing of bolts
will be determined
by code or
engineering.
STEP 2: Install ledger with anchor bolts.
Pre-cut ledger to length.
Pre-drill and install
anchor bolts, washers
and nuts, as specified.
Use screws fasten to
furring tabs to help hold
ledger in place during
concrete pour.
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LOGIX® INSULATED CONCRETE FORMS
2.12 – FLOOR CONNECTIONS Cont’d
2.12.2 – STEEL ANGLE IRON LEDGER
When floor spans become very long or concrete topping is applied to the floor, a wood ledger may not be adequate
to support floor loads. In this case a steel angle iron can be used in place of a wood ledger. The angle iron can
support much more weight and also eliminates the need for joist hangers, as the floor system sits right on the angle.
To install an angle iron ledger follow the steps in Section “2.12.1 - LEDGER WITH ANCHOR BOLTS & JOIST HANGERS”
on page 45, but use pieces of plywood to temporarily hold the bolts in place. After the pour drill and bolt on the
angle iron. Local steel fabricators may be able to pre-drill your angle iron.
Another alternative is to pre-fabricate an angle iron with anchor bolts or nelson studs welded directly to the angle.
The entire assembly is then cast in place. This application is described below.
Sit the angle
assembly on top of
the 2x4 and tight
up against the ICF.
STEP 2: Install 2x4 to support angle assembly.
Cut the foam as
outlined in Section
2.12.1
Screw on 2x4s to cover the bottom
of the cutout. The 2x4 temporarily
supports the angle assembly so it
must be installed level.
The 2x4s can be screwed to the
embedded furring tabs.
STEP 1: Cut foam to accommodate anchors, and install
2x4 to support angle assembly.
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LOGIX® INSULATED CONCRETE FORMS
2.12 – FLOOR CONNECTIONS Cont’d
NOTE: It is code in some areas for the angle assembly to be primed.
Screw strapping along the top edge of
the angle to keep the assembly against
the form during the concrete pour.
STEP 3: Install strapping to support angle assembly.STEP 4: Pour concrete and cast the assembly in place.
STEP 5: After some curing place floor systems on the angle and establish layout. Once layout is complete fasten the
floor joist to the angle iron, as specified. You may decide to attach a nailing surface to the bottom leg of
the angle iron to nail joists to.
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LOGIX® INSULATED CONCRETE FORMS
2.12.3 – BRICK LEDGE FOR TOP & BOTTOM CHORD BEARING SYSTEMS
The Logix Brick Ledge form can create a load bearing surface to support floor systems, including top and bottom
chord bearing trusses or joists.
Top chord bearing on Logix Brick Ledge.Top chord bearing on Logix Brick Ledge.
NOTE: If the Logix block in the course above the Brick
Ledge is of a smaller width than the Brick Ledge,
additional form support will be required.
Horizontal steel in
Logix ICF.
Brick Ledge stirrups
placed in each
corbel section at 8”
spacing.
Butt joints are
preferred for
longitudinal rebar
in corbel section.
STEP 1: Install a course of Logix Brick Ledge, and
place required reinforcement.
Strip of plywood
screwed to
embedded furring
tabs of the Brick
Ledge and course
above.
Spray foam can be
applied to provide
added support.
STEP 2: When installing a course above the Logix Brick
Ledge add additional form support to prevent
tilting or separating.
STEP 3: As concrete is placed, install embedments, as
required.
2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.12.4 – LEDGER WITH SIMPSON BRACKET & JOIST HANGERS
ICFVL-W and ICFVL-CW brackets are installed on
the ledger and screwed to the embedded ICFVL.
ICFVL-W is used with 1 1/2” wood
ledgers.
ICFVL-CW is used with 1 3/4” LVL
ledgers.
The ICFVL & ICFVL-W ledger connector system from Simpson Strong-Tie is designed for mounting steel or wood
ledgers on ICF walls.
ICFVL bracket is inserted
through the Logix form panels
prior to concrete placement.
Perforated legs
anchor bracket to
the concrete.
Exposed
flange
provides
mounting
surface for
wood or steel
ledgers.
STEP 1: Snap a chalk line to mark the bottom of the ledger and insert ICFVL brackets, as specified.
Cut narrow
slits in the
foam panel
to insert
the ICFVL
bracket
legs
through
the foam.
For wood
ledgers align
the bottom
of the ICFVL
brackets to
the chalk line.
For steel
ledgers center
the ICFVL
brackets to
the depth
of the steel
ledger.
Space the ICFVL
brackets, as required.
The depth from top of
concrete to top of ICFVL
bracket should be no
less than 4”.
STEP 2: Secure the ICFVL brackets before placing concrete. Fastening strapping across the brackets or installing the
ledgers prior to concrete placement will help ensure full concrete embedment of the ICFVL brackets.
Ledger fastened to the embedded
furring tabs prior to pour ensures
ICFVL bracket is secured during
concrete placement.
2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
STEP 3: Place and consolidate concrete. Once set, slip the ICFVL-W or ICFVL-CW underneath the wood ledger and
drive eight ICF-D3.25 screws through the ledger and into the ICFVL bracket. ICF-D3.25 screws are supplied by
Simpson Strong-Tie.
For steel ledgers use four #14 x 3/4” screws to attach the ledger to the ICFVL brackets. These screws are not
supplied by Simpson Strong-Tie.
Use ICFVL-W or
ICFVL-CW for wood
and LVL ledgers,
respectively.
Steel ledgers are
screwed to ICFVL
brackets with
without ICFVL-W or
ICFVL-CW.
STEP 4: Connect the floor joists to the ledgers, as
required.
NOTE: Industry studies show that hardened fasteners
can experience performance problems in wet
environments. Accordingly, use this product in
dry environments only. In addition, due to its
corrosive nature, treated lumber should not be
used with this product.
Use extra caution when installing the hangers on
both sides of a wall. Consult your local Simpson
Strongtie rep or contact Simpson Strongtie at
(800) 999-5099 prior to installation.
Complete technical data is available at www.
strongtie.com
2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
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2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.12.5 – TRANSITION LEDGE
A transition ledge typically occurs at the floor level where a wider Logix wall transitions to a narrower Logix wall
above the floor line, and usually up to the roof line.
The ledge created when transitioning from a wider to a narrower wall can provide a suitable bearing length for
many types of floor systems. The bearing length will vary depending on the thickness and type of Logix forms used.
For a complete list of bearing lengths see Section 5.4.1, Bearing Lengths.
2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.12.5.2 – TRANSITION LEDGE WITH CORNER BLOCKS
Transitioning from a wider block to a narrower block is commonly used in cases where a thinner wall becomes more
economical (i.e., below grade wall to above grade wall), or to create a ledge that can support a floor or roof system,
or finishes such as brick veneer.
When transitioning at corner locations using corner blocks, you might find that the interlocking knobs on the top
side of the wider bottom block (bottom course) do not interlock or align with the underside of the top narrower
block (top course). As a result, the top course will not sit or snap into its proper position.
This typically occurs in transitions at corner locations, and is easily resolved by following a few simple steps outlined
below.
Proper alignment of top course to bottom course.
Interlock aligns with underside of top course.
Improper alignment of top course to bottom course.
Interlock does not align with underside of top course.
Interlocks
2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
STEP 1: Cut the interlocks off the wider corner blocks
(it may be necessary to cut the interlocks off
the rest of the blocks on the bottom course to
ensure the top course can be placed flush on top
of the previous course).
As an alternative, Taper Top blocks for the
bottom course can be used. The Taper Tops
provide more flexibility since they can be
adjusted to ensure the interlocks align with the
top course.
STEP 2: Apply foam adhesive prior to installing the top
course.
STEP 3: Install the top course beginning with the corner
block and continuing around the building
perimeter.
2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.12.6 – TAPER TOP WITH SILL PLATE
The Taper Top form creates a greater bearing surface at the top of Logix walls.
STEP 3: Insert embedments as required.
STEP 2: Trowel concrete flush with top of forms, or
inset as required. Be sure to check for level.
STEP 1: Taper Top forms need to be foamed down or
otherwise secured to the course below.
Zipties shown to
secure adjoining
Taper Tops.
Place required
reinforcement.
Logix vertical hook
shown to secure
adjoining forms
below
Taper Top forms.
Logix Taper Top
Logix Taper Top
used at the top of
Logix ICF wall.
2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.12.7 – CONCRETE FLOOR SYSTEMS
Building with Logix will allow you to explore many concrete floor system options. Our walls are stronger and
can support added weight that wood or steel frame buildings may not. Concrete floor systems are very popular
in multi-residential buildings where the transmission of sound and fire are a concern. They are also growing in
popularity in single-family residential applications.
2.12.7.1 – PRECAST CONCRETE FLOORS
Pre-cast floor systems are poured at the factory and shipped to site then craned in place. They are usually tensioned
with steel cables cast in the concrete to provide maximum strength. Pre-cast floor are fast and can have very long
clear spans.
Typically the Logix wall is constructed to the desired height and the pre-cast planks sit directly on the cured
concrete. The planks, typically 4 feet (1.220 m) wide, are craned in place and the groves between planks are
grouted together. A 2 inch (52 mm) topping is poured over the deck to provide a smooth and level finish.
The reinforcing of the wall is tied in to the grouted grooves to secure the floor in place. The vertical reinforcing of
the wall is extended past the planks to secure future levels of Logix.
See floor manufacturer for specific installation requirements and details.
Remove strip
of foam to
accommodate pre-
cast slab.
Rebar dowels tie
slab to ICF.
Cold joint.
Wall reinforcement,
as required.
Concrete topping.
Logix ICF with precast slab (hollow core slab example).
2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.12.7.2 – COMPOSITE FLOOR SYSTEMS
Composite floors are a combination of steel and concrete that is bonded together to create a very strong floor
allowing for longer spans and wider joist spacings.
There are a number of brands designed for ICFs including Hambro, iSpanEcospan and Total Joist. Consult your floor
manufacturer and your local design engineer for more information.
Concrete slabDowel
reinforcement to
make slab integral
with Logix ICF Remove strip of ICF
foam, if required.
Notch foam, if
necessary, to
accommodate top
chord
Hambro floor joists
Temporary plywood
forms between
joists
Removable rollbar
Composite floor system - Hambro
2.12 – FLOOR CONNECTIONS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.13 – ROOF CONNECTIONS
Roof connections can be attached to the Logix wall in a variety of ways. Several factors can affect which method to
use such as area of the country and wind conditions. There are a number of tie-down options made by Simpson
Strong-Tie, including brands designed for ICFs, such as Burmon tie-down systems.
TOP MOUNTED SILL PLATE
This method is typically used when additional wall
height is required.
TIE-DOWN TO CONCRETE
This method anchors the roof truss to the concrete.
Burmon Anchor Tie-down
TIE-DOWN TO SILL PLATE
This method anchors the roof truss to the sill plate.
(Burmon Anchor Tie-down)
Burmon Anchor Tie-down
Trowel concrete
flush with top of
form and recheck
for level.
Install embedments,
as required.
INSET SILL PLATE
This method of sill plate attachment is the most energy
efficient. The Logix foam on each side provides an
excellent thermal barrier.
Use a site-built
wood trowel to
trowel the concrete
to a level below
the top of the form
equal to the depth
of the sill plate.
Be sure to cut
the trowel to the
full width of the
concrete core.
Install embedments,
as required.
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LOGIX® INSULATED CONCRETE FORMS
2.14 – SERVICE PENETRATIONS
Identify and size all service and utility penetrations. Install all appropriate and properly sized sleeves where
required, remembering that lightweight sleeves can be crushed during concrete placement.
List of possible service penetrations
• Dryer vent
• Water heater vent
• Water
• Sewer
• Electrical main service
• Gas line
• A/C line
• Furnace vent
• Air Exchange/HRV
• Central vacuum
• Ducting
• Bathroom vent
• Kitchen appliance venting
• Fireplace rough opening and vent
• Pet door
Install all required services through the ICF prior to concrete
placement, and secure with spray foam.
Cut appropriate sized holes for penetrations.
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LOGIX® INSULATED CONCRETE FORMS
2.15 – CONCRETE PLACEMENT
DATE:
FOREMAN:
JOB:
Prior to placing concrete in Logix insulated concrete forms, be certain to mark off each item on the checklist
provided in this section.
____ 1. String line in place around the top of entire perimeter?
____ 2. Walls straight and plumb (not leaning out)?
____ 3. Top course foamed or tied down with zip ties or Logix Hooks end to end to maintain dimensions?
____ 4. Additional form support on all corners?
____ 5. Have Tee-walls been foamed and supported?
____ 6. Alignment - screw in every course?
____ 7. Scaffold planking properly secured?
____ 8. All handrails and toe boards installed?
____ 9. All bucks cross braced?
____ 10. All bucks secured to wall?
____ 11. All buck concrete anchors installed?
____ 12. All horizontal and vertical rebar in place?
____ 13. All lintel reinforcing in place?
____ 14. All penetrations installed?
____ 15. All beam pockets in place?
____ 16. All floor embedments installed?
____ 17. Are anchor bolts and hold-downs on site?
____ 18. Has cavity of wall been checked, and foreign material removed?
____ 19. Plywood, screw gun, and saw on site?
____ 20. Interlock protected by tape, or other covering?
____ 21. Proper concrete mix and slump ordered?
____ 22. Concrete vibrator on site?
____ 23. Pump equipped with reducer or 2 1/2” trimmer hose available?
2.15.1 – PRE-PLACEMENT CHECKLIST
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LOGIX® INSULATED CONCRETE FORMS
2.15 – CONCRETE PLACEMENT Cont’d
Minimum compressive concrete strength is typically 3,000 psi (20MPa) at 28 days. However, this will depend on
the structure and loading conditions. For seismic areas mix design should be confirmed with local codes or by an
engineer.
The following maximum aggregate sizes are recommended for use in Logix walls:
Form Cavity Size, in. (mm)
4 (102)6.25 (159)8 (203)10 (254)12* (305)
Max.
Aggregate
Size, in. (mm)3/8 (9.5)3/8 (9.5)
to 1/2 (13)3/4 (19)3/4 (19)3/4 (19)
Always consult your local ready mix companies for appropriate concrete mix design.
2.15.2 – MIX DESIGN
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LOGIX® INSULATED CONCRETE FORMS
2.15 – CONCRETE PLACEMENT Cont’d
The most important stage of a successful Logix project is the concrete placement. Extra workers at this stage
are important - be certain to have enough on hand during the pour to safely handle placement, consolidation,
alignment, embedments, and cleanup.
An experience crew ensures the concrete is properly placed and consolidated. The following are recommended
practices and considerations when placing concrete.
• Concrete slump should be 5 inch (127 mm) to 6 inches (152mm) for best results.
• Use an internal vibrator with a head size of 3/4 inch (19 mm) to 1 inch (25mm) and maximum 1 hp motor.
Do not use a vibrator with a head larger than 1 inch (25 mm).
• Appropriate internal vibration assures the strongest walls possible and is especially important for below
grade application where the greatest loads occur.
• The rule of thumb for internal vibration is fast in and slow out, always moving, with a withdrawal rate
of approximately 3 inch (76 mm) per second.
Other methods of placement include conveyor truck, crane and bucket, and directly off the ready mix
truck.
• Lift height is determined by many factors, such as air temperature, concrete temperature, slump, etc. In
general, lift heights should not exceed 4ft (1.220 m) per hour.
• When placing concrete below freezing or at temperatures above 100o F (38o C), it’s important to protect
all exposed concrete with insulation.
• When placing concrete in 4 inch (102 mm) forms, it is recommended that the pump truck be fitted with a
2.5 inch (76 mm) flexible hose end.
2.15.3 – BEST PRACTICES
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LOGIX® INSULATED CONCRETE FORMS
2.15 – CONCRETE PLACEMENT Cont’d
STEP 1: Complete the pre-placement checklist.
STEP 2: Begin concrete placement under openings, filling
those areas and consolidating.
1x strapping
fastened to
furring tabs at
corners.
String
line
Check for straightness
between wall and string
using 1x piece.
Top
course
STEP 6: Check and adjust wall alignment using string
lines and turnbuckles.
2.15.4 – PLACING CONCRETE
STEP 4: Continue placing concrete around entire wall in appropriately sized lifts, using the same technique at each
corner to minimize fluid pressure.
STEP 5: As the concrete is being placed, consolidation is taking place to remove air and voids to ensure structural
integrity.
STEP 3: Beginning no closer than 3 feet (0.914 m) from
a corner, start filling the wall from the top,
allowing the concrete to flow gently toward
the corner. Then fill in that corner from the
opposite side using the same technique.
3 ft
Avoid placing concrete within
3 ft from corners.
3 ft
STEP 7: Return to starting location and begin the next
lift. Follow all the techniques established above.
Adjust the turnbuckles
as necessary to keep
the wall straight during
concrete placement.
Walls must be perfectly
straight or leaning
slightly inwards.
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LOGIX® INSULATED CONCRETE FORMS
2.15 – CONCRETE PLACEMENT Cont’d
DATE:
FOREMAN:
JOB:
After placing concrete in Logix insulated concrete forms, be certain to mark off each item on the checklist provided
in this section.
____ 1. Has consolidation been completed?
____ 2. Are walls straightened to string line?
____ 3. In extreme temperatures, has exposed concrete been protected?
____ 4. Have all anchors and embeds been installed?
____ 5. Has spilled concrete been disposed of?
____ 6. Has final check for straight and plumb been done?
2.15.5 – POST-PLACEMENT CHECKLIST
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2.16 – ELECTRICAL INSTALLATIONS
Electrical and plumbing installation are typically performed after concrete placement.
The exception to this rule is the placement of conduit that penetrates the wall, which must be performed before
concrete placement.
Installing electrical wiring and boxes is accomplished by creating channels in the EPS foam. When installed in Logix
walls directly against the concrete, electrical boxes will extend 1/2 inch (13 mm) beyond the foam to match the
thickness of 1/2 inch (13 mm) sheetrock.
Various tools can be used to create the channels and spaces for wiring and boxes:
• Electrical chainsaw with an adjustable roller depth stop
• Hot knife
• Circular saw with a masonry blade
Make the wiring channels narrow so there will be a friction fit with the wiring. The wiring needs to remain
embedded well into the foam to meet local electrical codes. Foam adhesive can be spot-applied into the channel to
help hold the wiring in place.
Narrow channels cut in
foam to accommodate
wiring.
Install conduits through
ICF prior to concrete
placement.
Drywall flush to
electrical box.
Cut away foam at
electrical box locations.
Mechanically fasten box
to concrete.
Spot-foam wires in place.
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2.17 – PLUMBING INSTALLATIONS
In most cases, buildings are designed so plumbing pipes are not carried through the Logix walls, except for utility
entry and exit points.
However, in some cases it may be required to embed pipe in the EPS. For example, a kitchen vent tube may need to
be installed vertically in the EPS foam. Pipes embedded in the foam cannot exceed 1-1/2 inch (38 mm) in diameter.
Fittings embedded in the foam cannot exceed 2-1/2 inch (64 mm) diameter.
An external faucet will require the installation of a hose sleeve through the wall prior to concrete placement. This
will permit replacement of the faucet or pipe should it ever be necessary.
If connecting to existing sewer lines, establish the location of the required opening and ensure clearances, since this
is difficult to change.
Pipes embedded within the Logix foam panels.
Cut away foam to
accommodate pipes.
Use pipe straps screwed
to embedded furring
tabs to secure pipes.
Otionally, anchor strap
to concrete.
Drywall or finish, as
required.
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2.18 – INTERIOR & EXTERIOR FINISHES
The Logix wall assembly has no need for an additional vapor barrier, the solid concrete core covered with the low
permeance EPS foam insulation on the inside wall face keeps water vapor from penetrating the wall.
The fact that the inner face of EPS foam maintains a similar temperature as the inside air of the building and that a
Logix wall has no cavity means that no condensation can occur in a Logix wall assembly.
The Logix wall assembly has no need for an air barrier (building wrap) layer as the solid concrete core and low
permeance EPS foam insulation on the outside wall face keeps air and moisture from penetrating the wall.
Typical Logix wall assembly - no additional vapor barrier, house
wrap and air barrier required.
Exterior finish, as
required.
No additional moisture
barrier required. The
combination of the
continuous concrete core
directly poured against
the continuous layer of
ICF foam panels acts as
an effective moisture
barrier.Drywall or interior finish,
as required.
No additional vapor
barrier required. The
ICF form panels provide
a minimum 2.75”
of continuous foam
insulation, acting as the
vapor barrier.
No additional air barrier
required. The concrete
core of the ICF provides
the continuous air
barrier for Logix ICF wall
systems
2.18.1 – VAPOR & AIR BARRIERS
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2.18 – INTERIOR & EXTERIOR FINISHES cont’d
2.18.2 – INTERIOR DRYWALL
Drywall should be installed in the same manner on a Logix wall as on a stud wall, with the following time-saving
exceptions:
• All furring tabs (studs) are on 8 inch (203 mm) centers from floor to ceiling for easy attachment of any type
of interior wall finish.
• The butt joints of the sheetrock do not need to fall on webs (studs) as the foam provides solid backing
wherever the joints fall. However, the edge of sheetrock panels should not exceed more than 4” from
webs.
• A foam-compatible adhesive can be used to effectively fasten the sheetrock to the Logix wall along with
screws. Always make sure to verify the local code for types and spacing for sheetrock fasteners. Typically,
adhesive alone is not allowed as a fastener of sheetrock, but again check with local building codes.
Many local building codes require the application of 1/2 inch (13 mm) drywall or other suitable thermal barrier
in any living space even though the EPS foam has a fire retardant component. Always verify local building code
requirements.
Non-habitable spaces such as crawl spaces, attics, and other types of hidden areas typically do not require a thermal
barrier (drywall).
Embedded furring tabs are fixed at each corner of the Logix 90° corner forms for solid sheetrock fastening at all
corners.
Typical Logix wall assembly - Attaching drywall.
Furring tabs are spaced
8” on center horizontally
and run nearly the entire
height of Logix ICF
blocks.
Screw drywall at furring
tab locations.
Butt joints of drywall
should not be more than
4” from furring tabs.
Furring tabs are
embedded 1/2” from
surface of Logix foam
panels and are anchored
into the concrete.
‘x’ pattern on surface of
Logix foam panels mark
locations of furring tabs.
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2.18 – INTERIOR & EXTERIOR FINISHES cont’d
2.18.3 – EXTERIOR SIDING
Siding material of some kind must be installed over the EPS foam to protect it from the UV rays of the sun. Foam
left exposed to the sun will slowly develop a dusty surface.
NOTE: When using Logix Platinum Series care should be taken to protect exposed foam surfaces from reflected
sunlight and prolonged solar exposure until wall cladding or finish material is applied. Shade exposed
foam areas, or remove sources of reflective surfaces, where heat build up onto exposed foam might occur.
For more information refer to BASF Technical Leaflet N-4 Neopor, “Recommendations for packaging,
transporting, storing and installing building insulation products made from Neopor EPS foam.” (The BASF
Technical Leaflet is attached to every bundle of Logix Platinum forms delivered to a job site).
Metal and vinyl siding can be installed directly over the top of the EPS.
Although air guns can be used, Logix recommends the use of screw guns when attaching exterior siding. Always
follow manufacturer’s recommendations and local codes to determine the size and spacing of fasteners for all siding
products.
Any type of siding that is used on a typical wood-framed building can be used on a Logix building.
The siding channel stock around doors and windows can be fastened to whatever type of buck material was chosen,
in a similar fashion as wood framed building.
Typical Logix wall assembly - Siding.
Furring tabs are spaced
8” on center horizontally
and run nearly the entire
height of Logix ICF
blocks.
Fasten siding at furring
tab locations.
Furring tabs are
embedded 1/2” from
surface of Logix foam
panels and are anchored
into the concrete.
‘x’ pattern on surface of
Logix foam panels mark
locations of furring tabs.
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2.18.4 – STEEL PANEL SIDING
Steel panel siding can be applied vertically to a Logix wall when the style of the panel matches the Logix web
spacing at 8 inch (203 mm) on center increments for fastening purposes.
Typical Logix wall assembly - Metal Panel
Siding.
Size of panel
does not
allow fastener
attachments to
Logix furring
tabs at 8”
increments.
Furring tabs are
embedded 1/2”
from surface
of Logix foam
panels and are
anchored into
the concrete.
‘x’ pattern on
surface of Logix
foam panels
mark locations of
furring tabs.
Furring tabs
are spaced
8” on center
horizontally and
run nearly the
entire height of
Logix ICF blocks.
Fasten panels
are furring table
locations.
When a panel siding is chosen that doesn’t fit with 8 inch (203 mm) increment for fastening, two different methods
are available:
METHOD 2: The panels can be installed horizontally, by
fastening directly into the webs.
Typical Logix wall assembly - Metal Panel Siding placed horizontally.Typical Logix wall assembly - Metal Panel Siding with strapping
Space strapping,
as required,
and fasten
metal panels to
strapping.
Fasten strapping
to Logix furring
tabs.
METHOD 1: A 1/2 inch (13 mm) or 3/4 inch (19 mm)
strip of wood can be attached horizontally
to the webs in the wall to provide the
manufacturer’s specified fastener spacing.
NOTE: Although air guns can be used, Logix recommends the use of screw guns when attaching exterior siding.
Always follow manufacturer’s recommendations and local codes to determine the size and spacing of
fasteners for all siding products.
2.18 – INTERIOR & EXTERIOR FINISHES cont’d
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2.18.5 – WOOD SIDING
Any wood siding can be attached to the Logix wall in the same manner as to a traditional framed building. The
spacing of the web studs on 8 inch (203 mm) centers allows for industry standard spacing of fasteners. Typically,
screws are used for attaching wood siding or even half-log siding to the Logix wall.
Although air guns can be used, Logix recommends a screw gun with screws in clips (Quik Drive). This is usually
the fastest method for applying wood siding. Always follow manufacturer’s recommendations and local codes to
determine the size and spacing of fasteners for all siding products.
A good practice for installing wood siding on a wall, is to apply the siding over vertical 1 inch x 2 inch (25 mm x 51
mm) wood nailing strips with a screen at the bottom. The screen keeps insects out while the space allows air to
circulate behind the siding. The air circulation helps equalize the moisture content in the wood siding, which makes
for much more dimensionally stable siding and longer lasting application.
Typical Logix wall assembly - Wood Siding.
Furring tabs are spaced
8” on center horizontally
and run nearly the entire
height of Logix ICF
blocks.
Fasten strapping
at furring tab
locations.
Furring tabs are
embedded 1/2” from
surface of Logix foam
panels and are anchored
into the concrete.
‘x’ pattern on surface of
Logix foam panels mark
locations of furring tabs.
Fasten siding to
strapping.
2.18 – INTERIOR & EXTERIOR FINISHES cont’d
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2.18.6 – EIFS
There are now acrylic-based stucco products available that are more flexible and easier to work with than traditional
cement-based stucco. Collectively these products are known as EIFS (Exterior Insulation Finish Systems) and almost
always require an EPS substrate.
Because Logix blocks are made with EPS, they are a natural fit for EIFS finishes. In addition, the webs in Logix blocks
are embedded 1/2 inch (13 mm) deep in the EPS foam to comply with EIFS manufacturer requirements.
It is important to follow the EIFS manufacturer’s application procedures.
Typical Logix wall assembly - EIFS example. Consult EIFS
manufacturer for recommended application procedures..
Base coat
Finish coat
Base coat
Mesh
2.18 – INTERIOR & EXTERIOR FINISHES cont’d
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2.18.8 – CEMENT COMPOSITE SIDING
Recently the new cement fiber siding products have gained popularity. This type of siding can usually be fastened
directly to the Logix webs.
Although air guns can be used, Logix recommends a screw gun to fasten flat-headed exterior screws at 16 inch (406
mm) centers. The screws pull the siding in tight and hold the siding securely in place.
Some manufacturers may require the siding to be strapped out to allow air space behind. Vertical or shake patterns
will require strapping for fastening. See illustrations in Section 2.18.4 and 2.18.5 for strapping examples.
Always follow manufacturer’s recommendations and local codes to determine the size and spacing of fasteners for
all siding products.
Check with your siding manufacturer for specific requirements.
Typical Logix wall assembly - Cement fibre siding installed
horizontally.
Furring tabs are spaced
8” on center horizontally
and run nearly the entire
height of Logix ICF
blocks.
Fasten siding at furring
tab locations.
Furring tabs are
embedded 1/2” from
surface of Logix foam
panels and are anchored
into the concrete.
‘x’ pattern on surface of
Logix foam panels mark
locations of furring tabs.
2.18 – INTERIOR & EXTERIOR FINISHES cont’d
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2.18.9 – BRICK VENEER
The Logix Brick Ledge form units are used to support a brick veneer as the exterior finish material. The Brick Ledge
forms are simply placed at a level where the brick is desired to begin. The design of the form creates a reinforced
concrete ledge.
With standard reinforcing, the Brick Ledge can bear up to 1300lb/ft (19kN/m) of wall.
With site-specific engineering, up to 3000lb/ft (44kN/m) of wall is attainable.
To install Brick Ledge form units, follow the instructions in section “2.7.4 – CORNER BRICK LEDGE” on page 18 of
the guide. When reinforcing steel and concrete are in place within the wall, brick is laid on the ledge and tied back
to the webs with brick ties as specified.
2.18 – INTERIOR & EXTERIOR FINISHES cont’d
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2.18.10 – BELOW GRADE WATERPROOFING, DAMPPROOFING & PARGING
2.18.10.1 – BELOW GRADE WATERPROOFING
There are many methods available to protect the “below grade” and the “just above grade” areas of the exterior of
your building.
Dampproofing is used on concrete or masonry surfaces to repel water in above grade walls. The 2.75 inch (70 mm)
foam panels of the Logix insulated concrete forms act as dampproofing, therefore, no additional dampproofing
treatment is required.
NOTE: Although dampproofing above grade walls is not typically required, check with local building codes for
dampproofing requirements.
Waterproofing
below-grade.
Parging.
Logix ICF acts as
dampproofing for
above-grade walls - no
additional dampproofing
required.
Logix recommends a rubberized “peel and stick” waterproofing membrane. The membrane is applied vertically to
the wall from grade level down to and overlapping the top of the footing. It is recommended to use protection
board, such as 1/2 inch rigid foam boards, or drainage boards, to prevent damage to the waterproofing membrane
during backfilling.
Proper free-draining backfill material is recommended for below-grade walls.
NOTE: Membrane should be installed within one week prior to backfill being placed. Sunlight and high
temperatures may cause the membrane to begin to “sag” which may cause wrinkles in the material. This
may result in tears or punctures during the placement of the backfill material. Should you choose to use
one of the many other types of waterproofing available be sure to follow the manufacturer’s recommended
installation procedures.
2.18 – INTERIOR & EXTERIOR FINISHES cont’d
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2.18.10.1 – BELOW GRADE WATERPROOFING
STEP 1: Prep the wall and footing area to be covered by removing all dirt and debris. If the ICF foam panels have
been subjected to prolonged UV exposure a chalky layer of dust will develop on its surface. Be sure to
remove the dust layer by sweeping the surface with a broom.
STEP 2: Snap chalk lines for the “grade” line.
STEP 3: Measure the height from grade line to footing. Add enough length to cover the top of the footing and cut
pieces of membrane to length.
STEP 4: Apply the membrane at corners first. Hang the
membrane vertically, and starting at the top pull
back the first 8” to 10” of the release paper and
press. Continue pulling back the release paper
and pressing the membrane to the wall. Make
sure to wrap the corners with the membrane.
Chalk line at
grade.
Place membrane
plumb by using
the vertical
marks on the ICF
as a guide.
STEP 5: Starting at a corner continue applying cut pieces
of membrane around the wall, maintaining 2
inch overlap by using the printed marks on the
membrane as a guide.
NOTE: Extreme temperatures, both cold and hot, may cause the installer to consider other types of waterproofing.
Be sure to follow the manufacturer’s installation process.
2.18 – INTERIOR & EXTERIOR FINISHES cont’d
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2.18.10.2 – ABOVE GRADE PARGING
The area that is above grade line and below the exterior siding material must be parged to protect the EPS from
damage.
Parging is a coating material that is applied to give a finished appearance to the small area of wall that is above
grade level but below where the siding materials will begin. Logix Prepcoat is the preferred option for this area.
STEP 1: Prep the wall area to be covered by removing any dirt or debris. The wall may need to be “scuffed” to
reveal fresh EPS beads.
STEP 2: Mix Prepcoat dry material with water to a pasty consistency.
STEP 3: Using a trowel apply a thin, 1/16” - 1/8” (2mm - 3mm) “skim coat” of Prepcoat.
STEP 4: Pre-cut pieces of Logix fiber mesh 1” - 2” (25mm - 51mm) wider than the area to be parged. This will allow
for an over-lap over the waterproofing membrane to create a “drip ledge”.
STEP 5: Embed the mesh in the skim coat firmly.
STEP 6: Once the area is dry to the touch apply a second coat of Prepcoat. This coat can be painted or stained if
desired.
Cladding
Finished
coat
Skim coat with
embedded mesh
Waterproofing
membrane
2.18 – INTERIOR & EXTERIOR FINISHES cont’d
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2.19 – ATTACHING FIXTURES
For attaching fixtures Logix provides furring tabs spaced every 8 inches, which provides more fastening points than
stud walls.
Fixtures can be fastened
to furring tabs, spaced
8” on center.
Different methods are used to attach fixtures depending on whether the fixture is light or heavy in weight.
2.19.1 - LIGHT WEIGHT FIXTURES
Fixtures that are light in weight, such as small picture frames or mirrors, can be attached to the wall without having
to fasten into the furring tabs by using typical hanging pins, finishing nails or plugs.
Fixtures such as curtain rods, large picture frames or mirrors, bathroom accessories, etc., require a more secure
attachment to the wall.
The Grappler, a product made specifically for ICFs, provides a stronger attachment for fixtures that are light in
weight but require a more secure hold. The Grappler is also useful in areas where a stronger fastening point is
required in an area where furring tabs may be absent. The Grappler is a 4” x 8” steel meshed plate that is pressed
into the surface of the Logix form panels before drywall is placed. Once the drywall is installed the Grappler is
sandwiched between the ICF and drywall creating a much stronger and secure attachment area.
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2.19 – ATTACHING FIXTURES Cont’d
2.19.2 - HEAVY WEIGHT FIXTURES
Additional backing is recommended to support heavier wall fixtures, such as kitchen cabinetry, wall mounted
fixtures, grab bars, hand rails, etc.
Different attachment methods can be employed depending on the type of attachment.
2.19.2.1 – CABINETS
METHOD 1: Plywood board can be attached to the Logix wall behind the heavier cabinets in place of gypsum board,
providing a thermal barrier comparable to gypsum and a strong attachment surface for heavier items
and fixtures. Be certain to attach the plywood board to the Logix webs with a sufficient number of
screws to hold heavy items in place for when loads are applied.
METHOD 2: Create horizontal channels behind the cabinets equal in width to a 2x4 and install 2x4 backing directly
to the concrete surface using sufficiently long concrete screws and a rotohammer. Attach the cabinets
to the 2x4s.
Cut strip of foam
and place 2x4.
Make sure 2x4 is
flush to face of
Logix ICF. Anchor
2x4 to concrete.
Fasten cabinets
to the 2x4s.
Fasten plywood
to the embedded
furring tabs.
Furring tab
locations are
marked with ‘x’
pattern.
Plywood
fastened to
Logix in place of
drywall.
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2.19 – ATTACHING FIXTURES Cont’d
2.19.2.2 - GRAB BARS
METHOD 1: Before placing drywall, place the Grapplers (see Section “2.19.1 - LIGHT WEIGHT FIXTURES” on page
78) onto Logix at grab bar fastening points. Install the drywall and fasten the grab bar to the
Grapplers.
METHOD 2: Use Tapcon screws to anchor the grab bar
directly to the concreted.
METHOD 3: For a stronger hold remove the foam and
replace with wood blocking behind the grab
bar mounting bracket. The wood blocking
should be mechanically fastened to the
concrete.
Wood
blocking
anchored to
concrete.
Grab bar screwed
to blocking
Tapcon screws
anchoring grab
bar.
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2.19 – ATTACHING FIXTURES Cont’d
2.19.2.3 – TELEVISIONS
METHOD 1: Face mounted TVs up to 200lbs can be
secured to the furring tabs with a minimum
of 4 course thread screws. Care must be
taken to ensure the screws are properly
fastened to the furring tabs. Fastening to
Grapplers in combination with furring tabs
will also work.
METHOD 2: Replace the drywall behind the mounting
bracket with plywood.
Plywood should cover total area of
mounting bracket and extend at
least 3 furring tabs across.
Fasten the plywood with
sufficient number of screws
to the furring tabs.Before installing mounting
bracket conceal plywood
with drywall compound to
blend with drywall (drywall
compound not shown for
clarity).
Coarse thread screws
fastened to furring tabs.
Screws should penetrate
at least 1/4” beyond
furring tab.
Furring tabs at 8” on center.
Drywall
Mounting
bracket
METHOD 3: TV mounts that swivel causes heavier
loading conditions and should be anchored
to the concrete with plywood and tapcons.
Fasten mounting bracket
to strapping.
Remove foam and replace
with 1/2” thick strapping
anchored to concrete with
Tapcons.
Placing strapping directly against
furring tabs ensures 1/2” thick foam
is removed and provides good solid
backing.
IN
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T
A
L
L
A
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N
G
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D
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LogixICF.com | 030321 | 2 - 82Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
2.20 – HOLDING POWER OF SCREWS FASTENED TO LOGIX FURRING TABS
Web fastener withdrawal and shear testing using course and fine thread drywall screws. Tests were conducted on
furring tabs embedded 1/2 inch (52 mm) from the surface of the 2.75 inch (70 mm) Logix EPS panels .
Max. Average
Withdrawal
Resistance
Allowable
Withdrawal
Resistance1
Max. Average
Shear Resistance
Allowable Shear
Resistance2
Coarse Thread Drywall
Screw 166lb (75.3kg)33lb (15.0kg)367lb (166.5kg)49lb (22.2kg)
Fine Thread Drywall
Screw 169lb (76.7kg)34lb (15.4kg)328lb (148.8kg)49lb (22.2kg)
1kg = 9.81 Newtons
1. Allowable withdrawal resistance values are based on a factor of safety of 5.
2. Allowable shear resistance values are based on a factor of safety of 3.2 within defined deflection limits (for more detailed information contact
info@Logixicf.com)
NOTE: The numbers in this table represent resistance at failure. Good building practice mandates a minimum of
a 5 to 1 safety factor in calculating fastener loading. For complete test results on additional fasteners, see
Section 8 in the Logix Design Manual or consult your local Logix representative.
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T
A
L
L
A
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LogixICF.com | 030321 | 2 - 83Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS2.21 – RADIUS WALLS
NOTES:
1. Field cut Logix Standard forms (straight forms) into widths, C, according to Logix Radius
Walls table. For inside radius field cut additional foam, A, accordingly.
2. Secure each radius section with zip ties, Logix Hooks, tape or foam.
3. The field cuts, C, are kept at 8” (203mm), 16” (406mm), 24” (610mm) or 48” (1220mm)
lengths. The field cuts, A, are determined depending on required radius. The combined
field cuts, A and C, results in an outside radius which is within 1% of the design radius
for radii less than 60ft (18.3m), and 1% to 2% for radii between 60ft and 100ft (18.3m to
30.5m).
C, in. (mm) A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm)
8 13/16 8 1 3/32 8 1 19/64 8 1 35/64
(203)(21) (203) (28) (203) (33) (203) (39)
8 11/16 8 59/64 8 1 3/32 8 1 19/64
(203)(17) (203) (23) (203) (28) (203) (33)
8 19/32 8 51/64 8 61/64 8 1 1/8
(203)(15) (203) (20) (203) (24) (203) (29)
8 17/32 8 45/64 8 27/32 8 1
(203)(13) (203) (18) (203) (21) (203) (25)
8 15/32 8 5/8 8 3/4 8 57/64
(203)(12) (203) (16) (203) (19) (203) (23)
8 27/64 8 9/16 8 43/64 8 51/64
(203)(11) (203) (14) (203) (17) (203) (20)
8 25/64 8 33/64 8 5/8 8 47/64
(203)(10) (203) (13) (203) (16) (203) (19)
8 23/64 8 15/32 8 9/16 8 43/64
(203)(9) (203) (12) (203) (14) (203) (17)
8 21/64 8 7/16 8 17/32 8 5/8
(203)(8) (203) (11) (203) (13) (203) (16)
3 (0.914)
3.5 (1.067)
Outside Radius,
ft. (m)
Form Cavity Width
4" (102mm)6.25" (159mm)8" (203mm)10" (254mm)
6 (1.829)
6.5 (1.981)
7 (2.134)
4 (1.219)
4.5 (1.372)
5 (1.524)
5.5 (1.676)
IN
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T
A
L
L
A
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LogixICF.com | 030321 | 2 - 84Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
2.21 – RADIUS WALLS Cont’d
C, in. (mm) A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm)Outside Radius,
ft. (m)
Form Cavity Width
4" (102mm)6.25" (159mm)8" (203mm)10" (254mm)
8 5/16 8 13/32 8 31/64 8 37/64
(203)(8) (203) (10) (203) (12) (203) (15)
8 9/32 8 3/8 8 29/64 8 35/64
(203)(7) (203) (10) (203) (12) (203) (14)
8 17/64 8 23/64 8 27/64 8 33/64
(203)(7) (203) (9) (203) (11) (203) (13)
8 1/4 8 11/32 8 13/32 8 31/64
(203)(6) (203) (9) (203) (10) (203) (12)
8 15/64 16 41/64 8 25/64 8 29/64
(203)(6) (406) (16) (203) (10) (203) (12)
16 29/64 16 39/64 8 23/64 8 7/16
(406)(12) (406) (15) (203) (9) (203) (11)
16 7/16 16 37/64 8 11/32 8 13/32
(406)(11) (406) (15) (203) (9) (203) (10)
16 27/64 16 35/64 8 21/64 8 25/64
(406)(11) (406) (14) (203) (8) (203) (10)
16 25/64 16 17/32 8 5/16 8 3/8
(406)(10) (406) (13) (203) (8) (203) (10)
16 3/8 16 1/2 8 19/64 8 23/64
(406)(10) (406) (13) (203) (8) (203) (9)
16 23/64 16 31/64 16 37/64 8 11/32
(406)(9) (406) (12) (406) (15) (203) (9)
16 11/32 16 15/32 8 9/32 8 21/64
(406)(9) (406) (12) (203) (7) (203) (8)
16 21/64 16 29/64 16 17/32 8 5/16
(406)(8) (406) (12) (406) (13) (203) (8)
16 21/64 16 7/16 8 1/4 16 39/64
(406)(8) (406) (11) (203) (6) (406) (15)
16 5/16 16 27/64 8 1/4 16 19/32
(406)(8) (406) (11) (203) (6) (406) (15)
16 19/64 16 13/32 8 15/64 16 37/64
(406)(8) (406) (10) (203) (6) (406) (15)
16 19/64 16 25/64 8 15/64 16 35/64
(406)(8) (406) (10) (203) (6) (406) (14)
24 27/64 16 3/8 8 7/32 16 17/32
(610)(11) (406) (10) (203) (6) (406) (13)
24 13/32 16 23/64 8 7/32 16 33/64
(610)(10) (406) (9) (203) (6) (406) (13)
24 13/32 16 23/64 16 27/64 16 1/2
(610)(10) (406) (9) (406) (11) (406) (13)
24 25/64 24 33/64 16 13/32 16 31/64
(610)(10) (610) (13) (406) (10) (406) (12)
24 3/8 24 1/2 16 13/32 16 15/32
(610)(10) (610) (13) (406) (10) (406) (12)
24 23/64 24 31/64 16 25/64 16 15/32
(610)(9) (610) (12) (406) (10) (406) (12)
24 23/64 24 15/32 16 3/8 16 29/64
(610)(9) (610) (12) (406) (10) (406) (12)
7.5 (2.286)
10 (3.048)
10.5 (3.200)
11 (3.353)
11.5 (3.505)
8 (2.438)
8.5 (2.591)
9 (2.743)
9.5 (2.896)
14 (4.267)
14.5 (4.420)
15 (4.572)
15.5 (4.724)
12 (3.658)
12.5 (3.810)
13 (3.962)
13.5 (4.115)
18 (5.486)
18.5 (5.639)
19 (5.791)
16 (4.877)
16.5 (5.029)
17 (5.182)
17.5 (5.334)
IN
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T
A
L
L
A
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LogixICF.com | 030321 | 2 - 85Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
2.21 – RADIUS WALLS Cont’d
C, in. (mm) A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm)Outside Radius,
ft. (m)
Form Cavity Width
4" (102mm)6.25" (159mm)8" (203mm)10" (254mm)
24 11/32 24 15/32 16 3/8 16 7/16
(610)(9) (610) (12) (406) (10) (406) (11)
24 11/32 24 29/64 16 23/64 16 27/64
(610)(9) (610) (12) (406) (9) (406) (11)
24 21/64 24 7/16 16 11/32 16 27/64
(610)(8) (610) (11) (406) (9) (406) (11)
24 21/64 24 7/16 16 11/32 16 13/32
(610)(8) (610) (11) (406) (9) (406) (10)
24 5/16 24 27/64 16 21/64 16 25/64
(610)(8) (610) (11) (406) (8) (406) (10)
24 5/16 24 13/32 16 21/64 16 25/64
(610)(8) (610) (10) (406) (8) (406) (10)
24 19/64 24 13/32 16 5/16 16 3/8
(610)(8) (610) (10) (406) (8) (406) (10)
24 19/64 24 25/64 16 5/16 16 3/8
(610)(8) (610) (10) (406) (8) (406) (10)
24 9/32 24 25/64 24 29/64 16 23/64
(610)(7) (610) (10) (610) (12) (406) (9)
24 9/32 24 3/8 24 29/64 16 23/64
(610)(7) (610) (10) (610) (12) (406) (9)
24 9/32 48 47/64 24 7/16 16 11/32
(610)(7) (1,219) (19) (610) (11) (406) (9)
24 17/64 48 23/32 24 7/16 16 11/32
(610)(7) (1,219) (18) (610) (11) (406) (9)
24 17/64 48 45/64 24 27/64 16 21/64
(610)(7) (1,219) (18) (610) (11) (406) (8)
48 33/64 48 45/64 24 13/32 16 21/64
(1,219) (13) (1,219) (18) (610) (10) (406) (8)
48 33/64 48 11/16 24 13/32 16 5/16
(1,219) (13) (1,219) (17) (610) (10) (406) (8)
48 1/2 48 43/64 24 25/64 16 5/16
(1,219) (13) (1,219) (17) (610) (10) (406) (8)
48 1/2 48 21/32 24 25/64 16 5/16
(1,219) (13) (1,219) (17) (610) (10) (406) (8)
48 31/64 48 41/64 24 25/64 16 19/64
(1,219) (12) (1,219) (16) (610) (10) (406) (8)
48 15/32 48 41/64 24 3/8 24 29/64
(1,219) (12) (1,219) (16) (610) (10) (610) (12)
48 15/32 48 5/8 24 3/8 24 7/16
(1,219) (12) (1,219) (16) (610) (10) (610) (11)
48 29/64 48 39/64 24 23/64 24 7/16
(1,219) (12) (1,219) (15) (610) (9) (610) (11)
48 29/64 48 39/64 24 23/64 24 27/64
(1,219) (12) (1,219) (15) (610) (9) (610) (11)
48 7/16 48 19/32 48 45/64 24 27/64
(1,219) (11) (1,219) (15) (1,219) (18) (610) (11)
48 7/16 48 37/64 48 45/64 24 13/32
(1,219) (11) (1,219) (15) (1,219) (18) (610) (10)
19.5 (5.944)
22 (6.706)
22.5 (6.858)
23 (7.010)
23.5 (7.163)
20 (6.096)
20.5 (6.248)
21 (6.401)
21.5 (6.553)
26 (7.925)
26.5 (8.077)
27 (8.230)
27.5 (8.382)
24 (7.315)
24.5 (7.468)
25 (7.620)
25.5 (7.772)
30 (9.144)
30.5 (9.296)
31 (9.449)
28 (8.534)
28.5 (8.687)
29 (8.839)
29.5 (8.992)
IN
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A
L
L
A
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LogixICF.com | 030321 | 2 - 86Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
C, in. (mm) A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm)Outside Radius,
ft. (m)
Form Cavity Width
4" (102mm)6.25" (159mm)8" (203mm)10" (254mm)
48 27/64 48 37/64 48 11/16 24 13/32
(1,219) (11) (1,219) (15) (1,219) (17) (610) (10)
48 27/64 48 9/16 48 43/64 24 25/64
(1,219) (11) (1,219) (14) (1,219) (17) (610) (10)
48 27/64 48 9/16 48 21/32 24 25/64
(1,219) (11) (1,219) (14) (1,219) (17) (610) (10)
48 13/32 48 35/64 48 21/32 24 25/64
(1,219) (10) (1,219) (14) (1,219) (17) (610) (10)
48 13/32 48 17/32 48 41/64 24 3/8
(1,219) (10) (1,219) (13) (1,219) (16) (610) (10)
48 25/64 48 17/32 48 41/64 24 3/8
(1,219) (10) (1,219) (13) (1,219) (16) (610) (10)
48 25/64 48 33/64 48 5/8 24 3/8
(1,219) (10) (1,219) (13) (1,219) (16) (610) (10)
48 25/64 48 33/64 48 39/64 24 23/64
(1,219) (10) (1,219) (13) (1,219) (15) (610) (9)
48 3/8 48 1/2 48 39/64 24 23/64
(1,219) (10) (1,219) (13) (1,219) (15) (610) (9)
48 3/8 48 1/2 48 19/32 24 23/64
(1,219) (10) (1,219) (13) (1,219) (15) (610) (9)
48 3/8 48 1/2 48 19/32 24 11/32
(1,219) (10) (1,219) (13) (1,219) (15) (610) (9)
48 23/64 48 31/64 48 37/64 24 11/32
(1,219)(9) (1,219) (12) (1,219) (15) (610) (9)
48 23/64 48 31/64 48 37/64 24 11/32
(1,219)(9) (1,219) (12) (1,219) (15) (610) (9)
48 23/64 48 15/32 48 9/16 24 21/64
(1,219)(9) (1,219) (12) (1,219) (14) (610) (8)
48 11/32 48 15/32 48 9/16 24 21/64
(1,219)(9) (1,219) (12) (1,219) (14) (610) (8)
48 11/32 48 15/32 48 35/64 24 21/64
(1,219)(9) (1,219) (12) (1,219) (14) (610) (8)
48 11/32 48 29/64 48 35/64 24 21/64
(1,219)(9) (1,219) (12) (1,219) (14) (610) (8)
48 11/32 48 29/64 48 17/32 24 5/16
(1,219)(9) (1,219) (12) (1,219) (13) (610) (8)
48 21/64 48 7/16 48 17/32 48 5/8
(1,219)(8) (1,219) (11) (1,219) (13) (1,219) (16)
48 21/64 48 7/16 48 17/32 48 5/8
(1,219)(8) (1,219) (11) (1,219) (13) (1,219) (16)
48 21/64 48 7/16 48 33/64 48 39/64
(1,219)(8) (1,219) (11) (1,219) (13) (1,219) (15)
48 5/16 48 27/64 48 33/64 48 39/64
(1,219)(8) (1,219) (11) (1,219) (13) (1,219) (15)
48 5/16 48 27/64 48 1/2 48 19/32
(1,219)(8) (1,219) (11) (1,219) (13) (1,219) (15)
48 5/16 48 27/64 48 1/2 48 19/32
(1,219)(8) (1,219) (11) (1,219) (13) (1,219) (15)
31.5 (9.601)
34 (10.363)
34.5 (10.516)
35 (10.668)
35.5 (10.820)
32 (9.754)
32.5 (9.906)
33 (10.058)
33.5 (10.211)
38 (11.582)
38.5 (11.735)
39 (11.887)
39.5 (12.040)
36 (10.973)
36.5 (11.125)
37 (11.278)
37.5 (11.430)
42 (12.802)
42.5 (12.954)
43 (13.106)
40 (12.192)
40.5 (12.344)
41 (12.497)
41.5 (12.649)
2.21 – RADIUS WALLS Cont’d
IN
S
T
A
L
L
A
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N
G
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LogixICF.com | 030321 | 2 - 87Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
C, in. (mm) A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm)Outside Radius,
ft. (m)
Form Cavity Width
4" (102mm)6.25" (159mm)8" (203mm)10" (254mm)
48 5/16 48 13/32 48 1/2 48 19/32
(1,219)(8) (1,219) (10) (1,219) (13) (1,219) (15)
48 5/16 48 13/32 48 31/64 48 37/64
(1,219)(8) (1,219) (10) (1,219) (12) (1,219) (15)
48 19/64 48 13/32 48 31/64 48 37/64
(1,219)(8) (1,219) (10) (1,219) (12) (1,219) (15)
48 19/64 48 13/32 48 31/64 48 9/16
(1,219)(8) (1,219) (10) (1,219) (12) (1,219) (14)
48 19/64 48 25/64 48 15/32 48 9/16
(1,219)(8) (1,219) (10) (1,219) (12) (1,219) (14)
48 19/64 48 25/64 48 15/32 48 35/64
(1,219)(8) (1,219) (10) (1,219) (12) (1,219) (14)
48 9/32 48 25/64 48 15/32 48 35/64
(1,219)(7) (1,219) (10) (1,219) (12) (1,219) (14)
48 9/32 48 3/8 48 29/64 48 35/64
(1,219)(7) (1,219) (10) (1,219) (12) (1,219) (14)
48 9/32 48 3/8 48 29/64 48 17/32
(1,219)(7) (1,219) (10) (1,219) (12) (1,219) (13)
48 9/32 48 3/8 48 29/64 48 17/32
(1,219)(7) (1,219) (10) (1,219) (12) (1,219) (13)
48 9/32 48 3/8 48 7/16 48 17/32
(1,219)(7) (1,219) (10) (1,219) (11) (1,219) (13)
48 17/64 48 23/64 48 7/16 48 33/64
(1,219)(7) (1,219) (9) (1,219) (11) (1,219) (13)
48 17/64 48 23/64 48 7/16 48 33/64
(1,219)(7) (1,219) (9) (1,219) (11) (1,219) (13)
48 17/64 48 23/64 48 27/64 48 33/64
(1,219)(7) (1,219) (9) (1,219) (11) (1,219) (13)
48 17/64 48 23/64 48 27/64 48 1/2
(1,219)(7) (1,219) (9) (1,219) (11) (1,219) (13)
48 17/64 48 11/32 48 27/64 48 1/2
(1,219)(7) (1,219) (9) (1,219) (11) (1,219) (13)
48 17/64 48 11/32 48 27/64 48 1/2
(1,219)(7) (1,219) (9) (1,219) (11) (1,219) (13)
48 1/4 48 11/32 48 13/32 48 31/64
(1,219)(6) (1,219) (9) (1,219) (10) (1,219) (12)
48 1/4 48 11/32 48 13/32 48 31/64
(1,219)(6) (1,219) (9) (1,219) (10) (1,219) (12)
48 1/4 48 11/32 48 13/32 48 31/64
(1,219)(6) (1,219) (9) (1,219) (10) (1,219) (12)
48 1/4 48 21/64 48 13/32 48 15/32
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (12)
48 1/4 48 21/64 48 25/64 48 15/32
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (12)
48 1/4 48 21/64 48 25/64 48 15/32
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (12)
48 1/4 48 21/64 48 25/64 48 15/32
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (12)
43.5 (13.259)
46 (14.021)
46.5 (14.173)
47 (14.326)
47.5 (14.478)
44 (13.411)
44.5 (13.564)
45 (13.716)
45.5 (13.868)
50 (15.240)
50.5 (15.392)
51 (15.545)
51.5 (15.697)
48 (14.630)
48.5 (14.783)
49 (14.935)
49.5 (15.088)
54 (16.459)
54.5 (16.612)
55 (16.764)
52 (15.850)
52.5 (16.002)
53 (16.154)
53.5 (16.307)
2.21 – RADIUS WALLS Cont’d
IN
S
T
A
L
L
A
T
I
O
N
G
U
I
D
E
-
R
A
D
I
U
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LogixICF.com | 030321 | 2 - 88Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
C, in. (mm) A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm)Outside Radius,
ft. (m)
Form Cavity Width
4" (102mm)6.25" (159mm)8" (203mm)10" (254mm)
48 15/64 48 21/64 48 25/64 48 29/64
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (12)
48 15/64 48 5/16 48 3/8 48 29/64
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (12)
48 15/64 48 5/16 48 3/8 48 29/64
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (12)
48 15/64 48 5/16 48 3/8 48 29/64
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (12)
48 15/64 48 5/16 48 3/8 48 7/16
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (11)
48 15/64 48 5/16 48 3/8 48 7/16
(1,219)(6) (1,219) (8) (1,219) (10) (1,219) (11)
48 15/64 48 5/16 48 23/64 48 7/16
(1,219)(6) (1,219) (8) (1,219) (9) (1,219) (11)
48 7/32 48 19/64 48 23/64 48 7/16
(1,219)(6) (1,219) (8) (1,219) (9) (1,219) (11)
48 7/32 48 19/64 48 23/64 48 27/64
(1,219)(6) (1,219) (8) (1,219) (9) (1,219) (11)
48 7/32 48 19/64 48 23/64 48 27/64
(1,219)(6) (1,219) (8) (1,219) (9) (1,219) (11)
48 7/32 48 19/64 48 23/64 48 27/64
(1,219)(6) (1,219) (8) (1,219) (9) (1,219) (11)
48 7/32 48 19/64 48 11/32 48 27/64
(1,219)(6) (1,219) (8) (1,219) (9) (1,219) (11)
48 7/32 48 19/64 48 11/32 48 13/32
(1,219)(6) (1,219) (8) (1,219) (9) (1,219) (10)
48 7/32 48 9/32 48 11/32 48 13/32
(1,219)(6) (1,219) (7) (1,219) (9) (1,219) (10)
48 7/32 48 9/32 48 11/32 48 13/32
(1,219)(6) (1,219) (7) (1,219) (9) (1,219) (10)
48 7/32 48 9/32 48 11/32 48 13/32
(1,219)(6) (1,219) (7) (1,219) (9) (1,219) (10)
48 13/64 48 9/32 48 11/32 48 13/32
(1,219)(5) (1,219) (7) (1,219) (9) (1,219) (10)
48 13/64 48 9/32 48 21/64 48 25/64
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
48 13/64 48 9/32 48 21/64 48 25/64
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
48 13/64 48 9/32 48 21/64 48 25/64
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
48 13/64 48 17/64 48 21/64 48 25/64
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
48 13/64 48 17/64 48 21/64 48 25/64
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
48 13/64 48 17/64 48 21/64 48 3/8
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
48 13/64 48 17/64 48 5/16 48 3/8
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
55.5 (16.916)
58 (17.678)
58.5 (17.831)
59 (17.983)
59.5 (18.136)
56 (17.069)
56.5 (17.221)
57 (17.374)
57.5 (17.526)
62 (18.898)
62.5 (19.050)
63 (19.202)
63.5 (19.355)
60 (18.288)
60.5 (18.440)
61 (18.593)
61.5 (18.745)
66 (20.117)
66.5 (20.269)
67 (20.422)
64 (19.507)
64.5 (19.660)
65 (19.812)
65.5 (19.964)
2.21 – RADIUS WALLS Cont’d
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LogixICF.com | 030321 | 2 - 89Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
C, in. (mm) A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm)Outside Radius,
ft. (m)
Form Cavity Width
4" (102mm)6.25" (159mm)8" (203mm)10" (254mm)
48 13/64 48 17/64 48 5/16 48 3/8
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
48 13/64 48 17/64 48 5/16 48 3/8
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
48 3/16 48 17/64 48 5/16 48 3/8
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (10)
48 3/16 48 17/64 48 5/16 48 23/64
(1,219)(5) (1,219) (7) (1,219) (8) (1,219) (9)
48 3/16 48 1/4 48 5/16 48 23/64
(1,219)(5) (1,219) (6) (1,219) (8) (1,219) (9)
48 3/16 48 1/4 48 19/64 48 23/64
(1,219)(5) (1,219) (6) (1,219) (8) (1,219) (9)
48 3/16 48 1/4 48 19/64 48 23/64
(1,219)(5) (1,219) (6) (1,219) (8) (1,219) (9)
48 3/16 48 1/4 48 19/64 48 23/64
(1,219)(5) (1,219) (6) (1,219) (8) (1,219) (9)
48 3/16 48 1/4 48 19/64 48 23/64
(1,219)(5) (1,219) (6) (1,219) (8) (1,219) (9)
48 3/16 48 1/4 48 19/64 48 11/32
(1,219)(5) (1,219) (6) (1,219) (8) (1,219) (9)
48 3/16 48 1/4 48 19/64 48 11/32
(1,219)(5) (1,219) (6) (1,219) (8) (1,219) (9)
48 3/16 48 1/4 48 19/64 48 11/32
(1,219)(5) (1,219) (6) (1,219) (8) (1,219) (9)
48 3/16 48 15/64 48 19/64 48 11/32
(1,219)(5) (1,219) (6) (1,219) (8) (1,219) (9)
48 11/64 48 15/64 48 9/32 48 11/32
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (9)
48 11/64 48 15/64 48 9/32 48 11/32
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (9)
48 11/64 48 15/64 48 9/32 48 11/32
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (9)
48 11/64 48 15/64 48 9/32 48 21/64
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 11/64 48 15/64 48 9/32 48 21/64
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 11/64 48 15/64 48 9/32 48 21/64
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 11/64 48 15/64 48 9/32 48 21/64
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 11/64 48 15/64 48 9/32 48 21/64
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 11/64 48 15/64 48 17/64 48 21/64
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 11/64 48 7/32 48 17/64 48 21/64
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 11/64 48 7/32 48 17/64 48 5/16
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
67.5 (20.574)
70 (21.336)
70.5 (21.488)
71 (21.641)
71.5 (21.793)
68 (20.726)
68.5 (20.879)
69 (21.031)
69.5 (21.184)
74 (22.555)
74.5 (22.708)
75 (22.860)
75.5 (23.012)
72 (21.946)
72.5 (22.098)
73 (22.250)
73.5 (22.403)
78 (23.774)
78.5 (23.927)
79 (24.079)
76 (23.165)
76.5 (23.317)
77 (23.470)
77.5 (23.622)
2.21 – RADIUS WALLS Cont’d
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LogixICF.com | 030321 | 2 - 90Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
C, in. (mm) A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm)Outside Radius,
ft. (m)
Form Cavity Width
4" (102mm)6.25" (159mm)8" (203mm)10" (254mm)
48 11/64 48 7/32 48 17/64 48 5/16
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 11/64 48 7/32 48 17/64 48 5/16
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 11/64 48 7/32 48 17/64 48 5/16
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 5/32 48 7/32 48 17/64 48 5/16
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 5/32 48 7/32 48 17/64 48 5/16
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 5/32 48 7/32 48 17/64 48 5/16
(1,219)(4) (1,219) (6) (1,219) (7) (1,219) (8)
48 5/32 48 7/32 48 1/4 48 5/16
(1,219)(4) (1,219) (6) (1,219) (6) (1,219) (8)
48 5/32 48 7/32 48 1/4 48 19/64
(1,219)(4) (1,219) (6) (1,219) (6) (1,219) (8)
48 5/32 48 7/32 48 1/4 48 19/64
(1,219)(4) (1,219) (6) (1,219) (6) (1,219) (8)
48 5/32 48 7/32 48 1/4 48 19/64
(1,219)(4) (1,219) (6) (1,219) (6) (1,219) (8)
48 5/32 48 13/64 48 1/4 48 19/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (8)
48 5/32 48 13/64 48 1/4 48 19/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (8)
48 5/32 48 13/64 48 1/4 48 19/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (8)
48 5/32 48 13/64 48 1/4 48 19/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (8)
48 5/32 48 13/64 48 1/4 48 19/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (8)
48 5/32 48 13/64 48 1/4 48 19/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (8)
48 5/32 48 13/64 48 1/4 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 5/32 48 13/64 48 15/64 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 5/32 48 13/64 48 15/64 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 13/64 48 15/64 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 13/64 48 15/64 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 13/64 48 15/64 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 13/64 48 15/64 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 15/64 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
79.5 (24.232)
82 (24.994)
82.5 (25.146)
83 (25.298)
83.5 (25.451)
80 (24.384)
80.5 (24.536)
81 (24.689)
81.5 (24.841)
86 (26.213)
86.5 (26.365)
87 (26.518)
87.5 (26.670)
84 (25.603)
84.5 (25.756)
85 (25.908)
85.5 (26.060)
90 (27.432)
90.5 (27.584)
91 (27.737)
88 (26.822)
88.5 (26.975)
89 (27.127)
89.5 (27.280)
2.21 – RADIUS WALLS Cont’d
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LogixICF.com | 030321 | 2 - 91Build Anything Better.™
LOGIX® INSULATED CONCRETE FORMS
C, in. (mm) A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm) C, in. (mm)A, in. (mm)Outside Radius,
ft. (m)
Form Cavity Width
4" (102mm)6.25" (159mm)8" (203mm)10" (254mm)
48 9/64 48 3/16 48 15/64 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 15/64 48 9/32
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 15/64 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 15/64 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 15/64 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 7/32 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 7/32 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 7/32 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 7/32 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 7/32 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 7/32 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 7/32 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 7/32 48 17/64
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (7)
48 9/64 48 3/16 48 7/32 48 1/4
(1,219)(4) (1,219) (5) (1,219) (6) (1,219) (6)
48 9/64 48 11/64 48 7/32 48 1/4
(1,219)(4) (1,219) (4) (1,219) (6) (1,219) (6)
48 1/8 48 11/64 48 7/32 48 1/4
(1,219)(3) (1,219) (4) (1,219) (6) (1,219) (6)
48 1/8 48 11/64 48 7/32 48 1/4
(1,219)(3) (1,219) (4) (1,219) (6) (1,219) (6)
48 1/8 48 11/64 48 7/32 48 1/4
(1,219)(3) (1,219) (4) (1,219) (6) (1,219) (6)
96 (29.261)
96.5 (29.413)
97 (29.566)
97.5 (29.718)
100 (30.480)
98 (29.870)
98.5 (30.023)
99 (30.175)
99.5 (30.328)
91.5 (27.889)
94 (28.651)
94.5 (28.804)
95 (28.956)
95.5 (29.108)
92 (28.042)
92.5 (28.194)
93 (28.346)
93.5 (28.499)
2.21 – RADIUS WALLS Cont’d
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LOGIX® INSULATED CONCRETE FORMS
2.22 – TALL WALLS
Logix walls can be constructed to any height provided proper engineering and construction methods are used.
Logix tall walls should be designed in accordance with ACI 318 or CAN/CSA A23.3.
Constructing tall walls follows the same basic steps described throughout Section 2. In addition, building taller walls
is done in much the same way as concrete pours using traditional formwork. Generally, Logix blocks are stacked and
braced, normally 10 to 12 feet high. The concrete is then placed. After the concrete sets Logix blocks are then
stacked another 10 to 12 feet, and bracing is raised or extended higher to support the wall, as well as keeping the
wall plumb. This process is continued until the specified wall height is reached.
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LOGIX® INSULATED CONCRETE FORMS
2.22 – TALL WALLS Cont’d
To ensure a smooth build, the following items should be considered:
• Load tables in Section 6 can be used as a design aid for both the builder and designer.
However, tall wall designs should be reviewed and approved by a local licensed professional
engineer.
• In higher wind areas taller walls may require guy wires for additional support. Typically, this
will be determined by the engineer of record.
• Proper consolidation of concrete can be achieved by adequate vibrating. However, depending
on the drop height, and the steel congestion, external vibration, in addition to internal
vibration, should be considered, particularly at corners, openings, and congested areas
of rebar. (External vibrators made specifically for ICFs are available. See Section “2.23 –
SUPPORTING PRODUCTS” on page 94.
• Since tall walls are typically poured using a pump truck, using a 2 1/2” trimmer hose can
provide better control of the concrete pour.
• If required, roughen the surface of all cold joints to ensure a good bond between the surface
of the old pour and the subsequent pour. In addition, ensure adequate rebar embedments are
provided.
• For the final stage of the pour, a Logix Taper Top block can be used, if required, for the top
course of the wall. This provides a larger opening for concrete to flow into the wall and also
provides a larger bearing area for supporting elements.
• Several tall wall bracing and alignment systems are available. For more information see Section
3.2, Tall Wall Bracing Systems.
NOTE: Both ACI 318 and CAN/CSA A23.3 permit cold joints when concrete is poured in stages.
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LOGIX® INSULATED CONCRETE FORMS
LogixICF.com | 071723 | 2 - 94
2.23 – SUPPORTING PRODUCTS
A list of supporting ICF products are shown below. Consult with the listed manufacturer prior to
using with Logix Insulated Concrete Forms. Please note: the products listed below does not prohibit
the use of Logix ICFs with other supporting products not listed.
FOOTINGS
Product Name Manufacturer Contact Website
Form-A-Drain CertainTeed Corp.708-301-4449 certainteed.com
EXTERIOR FINISHES
Product Name Manufacturer Contact Website
Durock Alfacing International Ltd.1-888-238-6345 durock.com
Senerflex Degussa Wall Systems, Inc.1-800-221-9255 senergy.cc
Sto EIFS System Sto Corp.1-800-221-2397 stocorp.com
GrailCoat GrailCoat 1-877-472-4528 grailcoat.com
TAFS (Textured Acrylic Finishes dryvit 1-800-263-3308 dryvit.com
SoftCoat PB System Total Wall, Inc.1-888-702-9915 totalwall.com
Akroflex Omega Products Corp.602-721-5027 omega-products.com
Impact System parex 1-800-537-2739 parex.com
PermaCrete Quality Systems 1-800-607-3762 permacrete.com
Crack Guard Poly-Wall 1-800-846-3020 poly-wall.com
WeatherWall Systems Eco Specialty Products Ltd.1-888-481-5507 ecocoatings.ca
WATERPROOFING
Product Name Manufacturer Contact Website
System III Epro 1-800-882-1896 eproserv.com
Blueskin WP2000 Bakor, Inc 1-800-387-9598 bakor.com
Colphene 3000 Soprema, Inc 1-800 567-1492 soprema.com
Delta-MS Clear Cosella-Dorken Products, Inc.1-888-4DELTA4 cosella-dorken.com
Platon Armtec Ltd.1-800-265-7622 systemplaton.com
Tamko TW60 Tamko, Inc.1-800-641-4691 tamko.com
Grace waterproofing products Grace Construction Products See website graceconstruction.com
Aqua-Wrap/Green Sheild Aqua Seal Inc.1-888-282-3861 aquasealusa.com
Protecto Universal Primer Free Membrane Protecto Wrap 1-800-759-9727 protecowrap.com
CONNECTION SYSTEMS
Product Name Manufacturer Contact Website
ICF Ledger Connector System Simpson Strong-Tie Co., Inc.1-800-999-5099 simpsonstrongtie.com
ICF-Connect ICF-Connect Ltd.1-866-497-1576 icfconnect.com
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LOGIX® INSULATED CONCRETE FORMS
LogixICF.com | 071723 | 2 - 95
2.23 – SUPPORTING PRODUCTS Cont’d
ADHESIVE & SEALANTS
Product Name Manufacturer Contact Website
Enerfoam Sealant/Enerbond Adhesive Dow Chemical Company 1-800-800-FOAM dow.com/buildingproducts
PL300 Loctite 1-800-624-7767 www.loctiteproducts.com
WALL BRACING & ALIGNMENT SYSTEMS
Product Name Manufacturer Contact Website
Uniscaffold, LLC Uniscaffold 1-208-791-5624 www.uniscaffold.com
Giraffe Bracing Giraffe Bracing 1-888-778-2285 www.giraffebracing.com
Plumwall Plumwall Ltd.1-905-786-7586 www.plumwall.com
Mono-Brace Tapco 814-336-6549 www.mono-brace.com
Amazing Brace Lakeland Group 905-372-7413 www.lakeland-multitrade.com
EXTERNAL VIBRATORS
Product Name Manufacturer Contact Website
Brecon Brecon Inc.815-463-8073 http://icfvibrator.com
Arkie Wall Banger Available from Wind-lock 1-800-872-5625 -
SUPPLIERS OF SUPPORTING ICF PRODUCTS
Company Contact Website
Wind-lock 1-800-872-5625 wind-lock.com
Grace Construction Products See website graceconstruction.com
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3.1 – INTRODUCTION
A bracing system provides temporary support for the wall and acts as an alignment system to keep the walls straight
and plumb during concrete placement. Typically, the wall alignment system is installed on the inner side of the
Logix wall.
There are a number of proprietary systems available. However, each bracing unit typically consists of a vertical
upright steel channel with slots for attaching screws to the Logix webs, a turnbuckle arm, and a scaffold bracket.
Normally, wall bracing systems are installed after placing 2 to 4 courses of Logix forms (depending on wind and
other conditions).
Upright steel channels
fastened to the embedded
furring tabs within the
Logix form panels.
Turnbuckles adjusts the
wall for plumbness and
straightness.
Scaffold bracket
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3.2 – LOCATION & SPACING
• Place bracing no more than 2ft (610 mm) from each corner or wall end, and every 7ft (2134 mm) or less
thereafter, in accordance with OSHA/OHSA requirements.
• Every door and window opening should be flanked on either side by bracing units.
The middle of large openings should be vertically braced to prevent
tipping.
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3.3 – INSTALLATION
STEP 1: Attach the upright steel channel to the Logix webs with a #10 screw in each course. The screws should be
snug but not tight.
#10 screw attached to each course.
Always place screws near the top of
the slots to accommodate settling
of the interlocks during concrete
placement and adjusting for plumb
and straightness.
‘x’ on the surface of
ICF denote furring tab
locations
Interlocks
Front View
#10 screw fasted to
the embedded furring
tabs.
Embedded
furring tabs.
Perspective Cut Section
Diagonal turnbuckle attached to
upright steel channel.
STEP 2: Attach a turnbuckle arm to the upright with
a bolt and then secure to the floor or ground.
In light or sandy soils, additional care must be
taken to secure diagonal turnbuckle. Ensure
wall is close to plumb and threads on the
turnbuckle is secured.
STEP 3: The scaffold bracket is then inserted behind the
top of the turnbuckle and secured at the bottom
with an additional bolt.
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STEP 4: Place the appropriate scaffolding planks and rails according to safety regulations. For requirements on toe
board and handrail configuration, consult OSHA/OHSA.
STEP 5: Prior to concrete placement, make certain walls are leaning slightly inward. The wall must not lean out at
all.
1x strapping
fastened to
furring tabs at
corners.
String
line
Check for straightness
between wall and string
using 1x piece.
Top
course
STEP 6: A stringline must be used to achieve straight walls.
STEP 7: Before, during and after concrete placement, the diagonal turnbuckle arm is used to adjust wall straightness
to stringline.
3.2 – INSTALLATION cont’d
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Tall walls are constructed in much the same way as concrete pours using traditional formwork. In general, the Logix
blocks are stacked and braced, normally 10 to 12 feet high. The concrete is then placed. After the concrete sets the
Logix blocks are then stacked another 10 to 12 feet, and bracing is raised or extended higher to support the wall, as
well as keeping the wall plumb. This process is continued until the specified wall height is reached.
In higher wind areas taller walls may require guy wires for additional support.
Logix can be built to any height using either proprietary bracing systems or traditional scaffolding.
There are a number of proprietary tall wall bracing and alignment systems available. Many of the systems
are designed to accommodate walls heights from 30 to 50 feet. For a list of some of these systems see “2.23 –
SUPPORTING PRODUCTS” on page 94.
With minor modifications traditional scaffold (masonry scaffold) systems can also be used as the bracing and
alignment system for tall walls. In addition, more experienced builders may have their own custom bracing systems
designed to meet their preferred method of construction.
NOTE: When using wall bracing systems always follow the manufacturer’s recommended installation practices,
including all required federal and local safety guidelines. Users of Logix and bracing systems should always
follow OSHA/OHSA guidelines.
3.4 – TALL WALL BRACING
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The following installation instructions demonstrates the use of scaffolding as a tall wall bracing and alignment
system. The scaffolding system described is available from Form Systems, Inc. For more information contact your
local Logix representative.
3.4.1 – TALL WALL BRACING SYSTEMS USING SCAFFOLDING
STEP 1: Complete two courses making sure they are
straight, level and well anchored (Figure A).
STEP 2: The first scaffolding items needed are the base
frames and screw jacks. The left end of the base
frame as seen in Figures B and C is the end that
will sit against the forms to allow the screw jacks
to be adjusted.
STEP 3: Insert the screw jacks into the base frames
as seen in Figure C. Create a base frame
by attaching two 7ft (2.134m) ledgers (the
horizontal pipes) to two base frames. Each
ledger end has a wedge to anchor the system
together (Figure D). To remove, hit from
below. Once base frame is in place, level in all
directions.
STEP 4: There are two kinds of vertical poles. Poles with
the 2/3 rosettes go against the wall. Those with
the full rosettes go into the center cup of the
base frame (Figure C).
3.4 – TALL WALL BRACING cont’d
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STEP 5: Install the two-foot ledgers that will hold the
decks in place on every third rosette from the
bottom. Note that the only 7ft (2.134m) ledger
required against the wall is on the base frame.
The rest of the scaffolding will require 7ft
(2.134m) ledgers only on one side (Figure F).
STEP 6: Place one wire clip per course at each vertical 2/3
rosette pole (Figure E).
STEP 7: Insert 7ft (2.134m) ledgers for railings in the two rosettes above the planks (Figure G).
STEP 8: There are two adjustable diagonals. One is 4ft (1.220m) long and is intended to go to the inside of the
vertical poles. It’s designed to align the wall during the second or third build. For the first build, use the
10ft (3.048m) external adjustable diagonal (Figure G).
3.4 – TALL WALL BRACING cont’d
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4.1 – INTRODUCTION ....................................................................................................................................................4-3
4.2 – MATERIAL TAKE-OFF LIST ....................................................................................................................................4-4
4.3 – ESTIMATING FORMS ............................................................................................................................................4-5
4.3.1 – STANDARD FORMS & CORNERS .................................................................................................4-5
4.3.2 - BRICK LEDGE FORMS .................................................................................................................4-6
4.3.3 - DOUBLE TAPER TOP & TAPER TOP FORMS ..................................................................................4-6
4.3.4 - HEIGHT ADJUSTERS ...................................................................................................................4-6
4.3.5 - END CAPS .................................................................................................................................4-6
4.4 – CONCRETE ............................................................................................................................................................4-7
4.4.1 - 4” WALLS .................................................................................................................................4-7
4.4.2 - 6.25” WALLS .............................................................................................................................4-7
4.4.3 - 8” WALLS .................................................................................................................................4-7
4.4.4 - 10” WALLS ................................................................................................................................4-8
4.4.5 - 12” WALLS ................................................................................................................................4-8
4.4.6 - ADD EXTRA CONCRETE FOR TAPER TOPS ...................................................................................4-8
4.4.7 - ADD EXTRA CONCRETE FOR DOUBLE TAPER TOPS ......................................................................4-8
4.4.8 - ALTERNATE METHOD FOR CALCULATING CONCRETE ..................................................................4-8
4.5 – REBAR ...................................................................................................................................................................4-9
4.6 – WATERPROOFING .................................................................................................................................................4-9
4.7 – PARGING ...............................................................................................................................................................4-9
4.8 – COURSE HEIGHT TABLE ......................................................................................................................................4-10
4.9 – ESTIMATING FORM ............................................................................................................................................4-11
TABLE OF CONTENTS
4.0 – ESTIMATING
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Calculating the number of forms needed is a simple task with Logix.
An important thing to remember in estimating is that walls with different heights should be calculated separately.
As the wall heights change, so do the quantities required.
There are several tools available to aid in estimating:
• Drawing a wall section on graph paper before estimating a project saves time and effort.
• The Logix One Minute Estimator provides rough estimates for preliminary estimates, and is available as
an app or online.
• The Logix Estimator provides more accurate and very detailed estimates and is on Windows. However,
the Logix Estimate can work on a Mac provided Windows Parallel is installed. This program is available
for download.
The Logix Estimator and One Minute Estimator are available through the “Download Apps” link on any of the
Logixicf.com web pages.
4.1 – INTRODUCTION
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The material take off is the first step in any estimate.
____ Linear feet of exterior and interior Logix walls
____ Height of walls
____ Number of courses in wall
____ Thickness of wall (4”, 6.25”, 8”, 10” or 12”)
____ Number of 90o corners (both inside and outside)
____ Number of 45o corner (both inside and outside)
____ Linear feet of Brick Ledge
____ Linear feet of Taper Top
____ Linear feet of Double Taper Top
____ Square feet of parge coating “stucco” (height x length) between grade and siding
____ Square feet of water proofing (height x length) from grade to lap over footing
____ Square feet of door and window openings
____ Linear feet of buck material
____ Number of beam pockets (End Caps)
____ Linear feet of end walls (End Caps)
____ Linear feet of Height Adjusters (both sides of wall)
SQUARE FOOTAGE OF DIFFERENT FORM TYPES
Standard (straight): 5.33sf
Standard V12 (straight) 4.00sf
Brick Ledge: 5.33sf
Taper Top: 5.33sf
Double Taper Top: 5.33sf
90o Corner (outside face): 5.36sf (5.89sf for 10” and 12” corner forms)
90o Corner V12 (outside face): 4.02sf
45o Corner (outside face): 3.89sf
4” Height Adjuster: 0.67sf
Pilaster: 3.49sf max.
4.2 – MATERIAL TAKE-OFF LIST
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4.3 – ESTIMATING FORMS
Standard, 45o and 90o Corner forms are 16” in height. Standard V12 and Corner V12 forms are 12” in height. The
following steps are based on 16” heights, however, the same procedure outlined in Section 4.3.1 is followed for 12”
high forms. (Currently, 45o forms in V12 are not available and are formed on-site.)
4.3.1 – STANDARD FORMS & CORNERS
STEP 1: Determine the total lineal feet of walls (both interior and exterior walls that will be built using Logix). Add
an extra 2ft for every 45o or 90o inside corner to the total lineal feet of walls. With this new lineal footage,
multiply by the height of the walls to determine the property’s total square footage. When figuring the
total square footage of walls with different heights it’s easiest to figure each wall separately and then add
totals together.
Subtract the total square footage of all window and door openings.
STEP 2: Determine number of 45o forms (A) by multiplying number of 45o turns by the number of courses (i.e. 6
courses x 4 turns). Then multiply the number of 45o forms by 3.89 sf/form. Then subtract this from your
gross square footage of wall determined in Step 1.
If no 45o turns continue with Step 3.
STEP 3: Determine number of 90o corner forms (B) by multiplying number of 90o turns by the number of courses (i.e.
6 courses x 4 turns). Then multiply the number of 90o forms by 5.36 sf/form (or 5.89sf for 10” or 12” corner
forms). Then subtract this from your square footage of wall determined in Step 2 (if no 45o turns used, then
subtract from gross square footage determined in Step 1).
STEP 4: Divide square footage of wall determined in Step 3 by 5.33 to determine gross number of Standard forms
required. (C)
NOTE: Standard forms are all 16” (406mm) tall and 48” (1220mm) long with a wall area of 5.33sf each. All 90o
Corners are 16” tall. The 4”, 6.25” and 8” Ninety degree corner forms cover a wall area of 5.36sf (measured
at the longer side of the corner form). The 10” and 12” Ninety degree corner forms cover a wall area of
5.89sf.
A. Number of 45o forms required: ____________
B. Number of 90o forms required: ____________
C. Number of Standard forms required: ____________
D. Total number of forms required: ____________
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4.3.2 - BRICK LEDGE FORMS
NOTE: Brick Ledge forms are available in straight units only. Corner applications require miter cutting Brick Ledge
forms on site.
Brick Ledge forms only come in 6.25”, 8”, 10” and 12” cavity sizes.
STEP 1: Measure the total linear feet of Brick Ledge needed and divide by 4 (the length in feet of each block) to
determine the total number of Brick Ledge forms needed. When miter cutting Brick Ledge corners, add one
Brick Ledge form for waste at each corner to the total Brick Ledge count.
STEP 2: Subtract the number of Brick Ledge forms from the total number of Standard forms determined earlier to
avoid ordering too many Standard forms.
4.3.3 - DOUBLE TAPER TOP & TAPER TOP FORMS
NOTE: The above forms are available in straight units only. Corner applications require miter cutting the forms on
site.
Taper Top and Double Taper Top forms come in 6.25”, 8”, 10” or 12” cavity sizes.
Follow Steps 1 and 2 in Section 4.3.2 to estimate the number of Taper Top or Double Taper Top forms required.
4.3.4 - HEIGHT ADJUSTERS
A 2ft Height Adjuster = 0.66sf. The number of 2ft long Height Adjusters needed is equal to the total linear footage.
NOTES: Height Adjusters come in one size, 4” x 24” x 2.75” thick. Remember to count both sides of the wall. Height
Adjusters can be used in window openings to adjust height without cutting standards.
4.3.5 - END CAPS
NOTES: End Caps are 16” tall and 2-1/4” thick . End Caps come in all wall cavity sizes - 4”, 6.25”, 8”, 10” and 12”.
Use End Caps at end wall applications. Use two End Caps for each beam pocket. Use End Caps for step
foundations if necessary. End Caps can be used to form side bucks on door and window openings.
4.3 – ESTIMATING FORMS cont’d
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4.4 – CONCRETE
4.4.1 - 4” WALLS
STEP 1: Take the square footage of all wall area and subtract the square footage of all window and door openings.
STEP 2: Multiply by 0.333ft (the width of the cavity) to get the cubic feet of concrete required.
STEP 3: Divide by 27cf to determine the total number of yards of concrete required (or divide by 35.32 to determine
meters of concrete required).
Example: 1845sf of wall area minus 322sf of window and door area equals 1523sf of net wall area. 1523sf times
0.333ft equals 507cf divided by 27cf per yard equals 18.8 yards of concrete required. Or divide 507cf by
35.32 for meters required. In this case, 14.4 meters.
4.4.2 - 6.25” WALLS
STEP 1: Take the square footage of all wall area and subtract the square footage of all window and door openings.
STEP 2: Multiply by 0.521ft (the width of the cavity) to get the cubic feet of concrete required.
STEP 3: Divide by 27cf to determine the yards of concrete required (or divide by 35.32 to determine meters
required).
Example: 1845sf of wall area minus 322sf of window and door are equals 1523sf of net wall area. 1523sf times
0.521ft equals 793cf divided by 27cf per yard equals 29.4 yards of concrete. Or divide 793cf by 35.32 for
meters required. In this case, 22.5.
4.4.3 - 8” WALLS
STEP 1: Take the square footage of all wall area and subtract the square footage of all window and door openings.
STEP 2: Multiply by 0.667ft (the width of the cavity) to get the cubic feet of concrete required.
STEP 3: Divide by 27 to determine the yards of concrete required (or by 35.32 to determine meters required).
Example: 1845sf of wall area minus 322sf of window and door area equals 1523sf of net wall area. 1523sf times
0.667ft equals 1016cf divided by 27cf per yard equals 37.6 yards of concrete. Or divide 1016cf by 35.32 for
meters required. In this case, 28.8.
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4.4.4 - 10” WALLS
STEP 1: Take the square footage of all wall area and subtract the square footage of all window and door openings.
STEP 2: Multiply by 0.833ft (the width of the cavity) to get the cubic feet of concrete required.
STEP 3: Divide by 27cf to determine the total number of yards of concrete required (or by 35.32 to determine meters
of concrete required).
Example: 1845sf of wall area minus 322sf of window and door area equals 1523sf of net wall area. 1523sf times
0.833ft equals 1269cf divided by 27cf per yard equals 47.0 yards of concrete required. Or divide 1269cf by
35.32 for meters required. In this case, 35.9 meters.
4.4.5 - 12” WALLS
STEP 1: Take the square footage of all wall area and subtract the square footage of all window and door openings.
STEP 2: Multiply by 1ft (the width of the cavity) to get the cubic feet of concrete required.
4.4.6 - ADD EXTRA CONCRETE FOR TAPER TOPS
Multiply linear feet of Taper Top by 0.003 cubic yards or cubic meters 0.002 to determine the additional yards or
meter of concrete needed.
Example: 200lf of Taper Top forms would require an additional 0.6 yards of extra concrete (200lf x 0.003 = 0.6 yards).
4.4.7 - ADD EXTRA CONCRETE FOR DOUBLE TAPER TOPS
Multiply linear feet of Double Taper Tops by 0.006 cubic yards or cubic meters 0.005 to determine the additional
yards or meter of concrete needed.
Example: 200lf of Taper Top forms would require an additional 1.2 yards of extra concrete (200lf x 0.006 = 1.2 yards).
4.4.8 - ALTERNATE METHOD FOR CALCULATING CONCRETE
An alternate method to calculate concrete is to use the chart below. Simply multiply the total number of forms by
the appropriate multiplier to determine the cubic yards or cubic meters of concrete required.
Form Size Cubic Yards per
Form Unit
Cubic Meters per
Form Unit
4”0.066 0.050
6.25”0.103 0.079
8”0.132 0.100
10”0.165 0.126
12”0.198 0.151
4.4 – CONCRETE cont’d
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4.5 – REBAR
Rebar estimating varies from wall to wall depending on factors such as height, vertical loading, horizontal loading,
backfill heights, etc.
NOTE: Each Brick Ledge will require six stirrups to tie the horizontal rebar in the corbel to the horizontal rebar in
the interior of the form.
4.6 – WATERPROOFING
Multiply linear footage of walls by the height of backfill. When calculating backfill height, make sure to add
enough height to allow the waterproofing materials to extend over the edge of the footing.
Divide this number by the square footage per roll of membrane material to determine the total number of rolls
required.
If using a rigid waterproofing board, do not include a footing overlap in you calculations.
4.7 – PARGING
Parging typically covers from the top of the waterproofing membrane to a height 2” above the bottom edge of the
siding.
Multiply the linear footage of wall by height of parging to determine total square footage of parging required.
Divide this number by the square footage per bag of parging material to determine the total number of bags
required.
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4.8 – COURSE HEIGHT TABLE
This table shows wall heights that are readily achieved using Standard Logix forms used in
combination with 4” (102mm) Height Adjusters and/or 12” (305mm) V12 forms.
Number
of
Standard
Courses
Height of Wall for
Standard Courses 4" Height Adjuster 1 Course of V12 2 Courses of V12 3 Courses of V12
1 1' - 4" (406mm) 1' - 8" (508mm) 2' - 4" (711mm) 3' - 4" (1016mm) 4' - 4" (1321mm)
2 2' - 8" (813mm) 3' - 0" (914mm) 3' - 8" (1118mm) 4' - 8" (1422mm) 5' - 8" (1727mm)
3 4' - 0" (1219mm) 4' - 4" (1321mm) 5' - 0" (1524mm) 6' - 0" (1829mm) 7' - 0" (2134mm)
4 5' - 4" (1626mm) 5' - 8" (1727mm) 6' - 4" (1930mm) 7' - 4" (2235mm) 8' - 4" (2540mm)
5 6' - 8" (2032mm) 7' - 0" (2134mm) 7' - 8" (2337mm) 8' - 8" (2642mm) 9' - 8" (2946mm)
6 8' - 0" (2438mm) 8' - 4" (2540mm) 9' - 0" (2743mm) 10' - 0" (3048mm) 11' - 0" (3353mm)
7 9' - 4" (2845mm) 9' - 8" (2946mm) 10' - 4" (3150mm) 11' - 4" (3454mm) 12' - 4" (3759mm)
8 10' - 8" (3251mm) 11' - 0" (3353mm) 11' - 8" (3556mm) 12' - 8" (3861mm) 13' - 8" (4166mm)
9 12' - 0" (3658mm) 12' - 4" (3759mm) 13' - 0" (3962mm) 14' - 0" (4267mm) 15' - 0" (4572mm)
10 13' - 4" (4064mm) 13' - 8" (4166mm) 14' - 4" (4369mm) 15' - 4" (4674mm) 16' - 4" (4978mm)
11 14' - 8" (4470mm) 15' - 0" (4572mm) 15' - 8" (4775mm) 16' - 8" (5080mm) 17' - 8" (5385mm)
12 16' - 0" (4877mm) 16' - 4" (4978mm) 17' - 0" (5182mm) 18' - 0" (5486mm) 19' - 0" (5791mm)
13 17' - 4" (5283mm) 17' - 8" (5385mm) 18' - 4" (5588mm) 19' - 4" (5893mm) 20' - 4" (6198mm)
14 18' - 8" (5690mm) 19' - 0" (5791mm) 19' - 8" (5994mm) 20' - 8" (6299mm) 21' - 8" (6604mm)
15 20' - 0" (6096mm) 20' - 4" (6198mm) 21' - 0" (6401mm) 22' - 0" (6706mm) 23' - 0" (7010mm)
16 21' - 4" (6502mm) 21' - 8" (6604mm) 22' - 4" (6807mm) 23' - 4" (7112mm) 24' - 4" (7417mm)
17 22' - 8" (6909mm) 23' - 0" (7010mm) 23' - 8" (7214mm) 24' - 8" (7518mm) 25' - 8" (7823mm)
18 24' - 0" (7315mm) 24' - 4" (7417mm) 25' - 0" (7620mm) 26' - 0" (7925mm) 27' - 0" (8230mm)
19 25' - 4" (7722mm) 25' - 8" (7823mm) 26' - 4" (8026mm) 27' - 4" (8331mm) 28' - 4" (8636mm)
20 26' - 8" (8128mm) 27' - 0" (8230mm) 27' - 8" (8433mm) 28' - 8" (8738mm) 29' - 8" (9042mm)
21 28' - 0" (8534mm) 28' - 4" (8636mm) 29' - 0" (8839mm) 30' - 0" (9144mm) 31' - 0" (9449mm)
22 29' - 4" (8941mm) 29' - 8" (9042mm) 30' - 4" (9246mm) 31' - 4" (9550mm) 32' - 4" (9855mm)
23 30' - 8" (9347mm) 31' - 0" (9449mm) 31' - 8" (9652mm) 32' - 8" (9957mm) 33' - 8" (10262mm)
24 32' - 0" (9754mm) 32' - 4" (9855mm) 33' - 0" (10058mm) 34' - 0" (10363mm) 35' - 0" (10668mm)
25 33' - 4" (10160mm) 33' - 8" (10262mm) 34' - 4" (10465mm) 35' - 4" (10770mm) 36' - 4" (11074mm)
HEIGHT OF WALL WHEN ADDITIONAL COURSES OF HEIGHT ADJUSTER OR
V12s ARE ADDED
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LogixICF.com | 030321 | 4 - 11Build An ything Better.™
LOGIX® INSULATED CONCRETE FORMS
4.9 – ESTIMATING FORM
Customer Name:__________________________________ Date:________________
Project Name:__________________________________________________________
Wall Type (Circle): Frost Wall Basement Main Floor Second Floor Other
Form Size (Circle): 4” 6.25” 8” 10” 12”
Estimating Data
Lineal Feet (LF) of Wall LF Height Adjusters
Wall Height LF Extended Brick Ledge
Number of 90° Turns LF Taper Top Form
Number of 45° Turns Height of Backfill
Number of Logix Courses Square Footage (SF) of Openings
Number of Courses of Standards Gross SF of Wall (GSF)
LF Form Lock Net SF of Wall (NSF)
Quantity Description Notes
Standard Forms
Standard V12 Forms
90° Corner Forms
90° V12 Corner Forms
45° Corner Forms
Brick Ledge
Taper Top Forms
Double Taper Top Forms
Number of Height Adjusters (2’ each)
Number of Form Lock (12.5’ each)
Filament Tape (1 roll/50 blocks)
Zip Ties (1 bag/200 blocks)
Waterproofing Membrane (200sf/roll)
Rolls of Fiber Mesh (475sf/roll)
Bags of Prepcoat (85sf/bag)
LF/Type Rebar
Cubic Yards of Concrete
LF Window/Door Buck
Number of Alignment System Sets
Man Hours/sf
info@LogixICF.com
LogixICF.com
888.838.5038
330 Cain Drive
Haysville, KS 67060-2004
888.706.7709
840 Division St.
Cobourg, ON K9A 5V2
877.789.7622
35 Headingley Rd.
Headingley, MB R4H 0A8
888.453.5961
11581-272 St.
Acheson, AB T7X 6E9
888.453.5961
6333 Unsworth Rd.
Chilliwack, BC V2R 5M3
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