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1014.6.2-1016.2 1994 UNIFORM BUILDING CODE
approved marking shall bc provided on each tread at the nosing or heading edge such that the loca-
tion of each treed is readily apparent when viewed in descent. Such. stripe shall be a zn�nimum of
-1 inch (25 mm) wide and a maximum of 2 inches �S 1 mm) wide.
EXCEPTION.- When the slopeI t and the adjobi4 i ing seatf �,
the same, the riser heights
.ng are
may be increased to a max� 'riche X29 and may be nonun'iformnecesslL
toted by changes in the slope of the adjoining seatingarea to maintain ad r
3 Uate sig t Ines.iatiom may ex-
ceedtio
r i t tfi with tr ad t tie rosinrIi adjacent
t theriser.
stripe shail be, actively differ-cilt from the contrasting mr n tri
pe.
1014.7 Handrails. Handrails shall comply with the height, size and shape dimensions seg forth in
Section 1006..9 and shah have rounded termznations or fiends. Ramped aisles having a slope steeper
than I unit vertical in 15 units horizontal (6.7%slope) and aisle stairs (two or more adjacent steps)
shall have handrails located either at the side or within the aisle width. Handrails maproject into
�vthe required aisle Jdth a distance o#' 31/2 inches (89 mm).�'
.
EXCEP"11ONS: 1.
al'Is maybe
omitted -ramped aistes having a slopeof greater
(12.5% slope) when fixed seating is on boti, sides
2. t t i r� aislei.11 lto t��
requirements Handrails may be ornitted when a guardrail is for ndra� l :shape
Handrails located within the aisle width shall be d�seontinuaus with gaps or breaks at intervals
not to exceed five, rows. These gaps or breaks shall have a clear width of not Tess than 22 inches (559
mm) or more than 36 inches (914 mm) measured hor izonta Y. Such handrails shall have an addi-
tional intermediate handrail located 12 inches (3D5 mm) below the main handral"'Ll
SECTION 1015 — SEAT SPACING
When seating rows bave 14 or less seats, the minimum clear width between rows shall not be less
than 12 inches (3Q5 mm) measured as the clear honwzontat distance from the back, of the row ahead
and the nearest projection of the xa,,,, behind. Where seats are automatic or seXf rising, measurement
r��ay be made wx�h the seats in the raised position. Where seats are not au�o�nat�c or self-zisin
Minimum clear width shall be measured with the seat in the down posit'o�n. �a the
The dear width shall be increased as followsm,
i .
For rowsof seating sexed by aisles or doorways at doth ends, there shall be no rnore than 100
seats per row and the zninimum dear width of 12 inches (305mm) betweeows shall be increased
by 0.3 inch (7.6Z mm) for eve' ry additional spat beyond 14, but the minimum clear width need not
exceed 22 inches (55 9 mm). If the aisles ars dead ended, see Section 10 14.4 for further' limitations.
2. For rows of seating served by ars aisle or doorway at one end only, the minimum clear widih of
31. 2 inches (3 05 mm) between rows shall be increased by U. 6 inch (15 mrn) for every additional spat
beyond seven, but the minimum clear width geed not exceed 22 inches (559 rnm)a In addition the
distance to the point where the occupant has a choice of two directions of travel to an exit shall not
exceed 30 feet (9144 mm) from the parrot when the occupant is sewed.
SECTION 1016 — GROUP A OCCUPANCIES
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lU1[).1 Ylain 1-'-xit, Group A, Division 1, Z or 2.1 Occupancies sell be provided with a main exit.
The main exit shall, be of sufficient width is accommodate ane half of the total occupant load but
shad not be less than the total required width of all aisles, exit passageways and stairways leadin
thereto and shall connect to a continLiOus and unobstructed means of egress to a public way. g
1016.2 Side Exitse Auditoriums of Group A., Division 1, 2 or 2.1 Occupanc*es sail beprovided
�vifih exits on each side. The exits on each side of the auditorium shall be of sufficient width to ac-
cQrnmodate one third. of the total occupant lead served. Side exits shall open dlrecflY�to a public way
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)DE 1 1994 UNIFORM BUILDING CODE 101-6.2-1017.3.1
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)ca- or into an exit court, approved stairway, exterior stairway or exit passageway leading to a public
I of way. Side exits shall be accessible from a cross aisle.
ghts 1016.3 Balcony Exits. Balconies & having.an occupant load of 1[� or more 0 shall, be provided wl'th a
minimum of two exits, Balconyts shalldirectly-n exterior stauwaN oT othef appyoved
exi - open to a
I— I stairway or ramp. When there is more than one balcony, exits shall open into an exterior or enclosed
,� I��� stairway or ramp. Balcony exits shall bye accessible from a cross aisle. The number and distribution
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Ana of exits shad Ue as otherwise specified in this chapter.
1016.4 Panic Hardware. Exit doors from Group A Occupancies hay.i'ng ars occupant load of 50 or
rtmore shall not be, provided with a latch or lock unless i P s panic. hardware,
EXCEPTJONS: 1. In Group A, DivisTion 3 Occupancies and in all churches, panic haRlWare niay be
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omitted from the mairi exit when the main exit consists of a single door or pair of doors. A key -locking device
may be used in place of the panic hardware, provided there is a readily visible durable sign adjacent to the
doorway s toting THIS DOOR MUST REMA IN UNLOCKED DUR ING' B US I S HO URS . The sign steal I
be in letters not less than I inch (25 mm) high on a contrasting background. When unlocked, the single door
or both 1Nes of a pair of doors must be free to swing without operation of any latching device. When a pair
of doors is installed, one leaf shall have no locking devices whatsoever, and the second leaf shall be arranged
to latch or lock into the frame and into the first leaf in such a manner that a single unlocking action will unlock
both leaves simultaneously. Flush, edge or surface bolts or any other type of device that may be used to close
or restrain the or other than by operation of the locking device are prohibited. The rise of this exception may
be revoked by the building official for dui cause.
2. Panic hardware may be waived on gates surrounding stadiums when the gates are under constant immedi-
ate supervision while the public is present, and provided safe dispersal areas based on 3 square fejt (0.2.8 m2-)
per occupant are located between the stadium and the fence. Gates may be horizontal slid*ing or swinging and
may exceed the 4 -foot -width (1 219 mm) limitation. The required dispersal area shall be located not less thaii
50 feet (15 240 mm) from the stadlurll*
1016.5 Multitheater Complex. The main exit from the multitheater complex shall be of suffi-
cient width to accommodaio one half of the aggregate occupant load of the complex.....
Corridor walls and ceifings shall be of not less than one-hour fire-resistirre construction with
openings protected as required in Section 1005.8.
EXCEPTION:
Opening protection is
not required when each
motion picture auditorlun-i has at least one
half of its required
exits opening directly
to the exterior or into ori
exit passageway,
SECTION 1017 — GROUP E OCCUPANCIES
1017.1 Definitions. For the purpose of this section, the followinng
definitions a -DDI
A I Y
INTERIOR ROOM is a room whose onisougty exit thr h an adjoining or intervening room
0 1
which is not an exit corridor.
ROOM is a space or area bounded by any obstructions to exit passage which at any time enc -lose
mare than 80 percent of the perimeter of the area. In computing the unobstructed perimeter,, open-
ings less than 3 feet (914 mm) in clear width aid less than 6 feet 8 in che s (ZQ32 mm) high shall n otbe
considered.,
SEPARATE EXIT SYSTEM is a path of exit travel separated in such a manner from other re-
quired exits as to provide an atmospheric separation which precludes contaml'..nafion of both paths
b y the same fire.
1017.2 Separate Exit Systems Required. Every room with an occupant load of mare than 304
shall have one of its exits into a separate exit system. When three or more exits are required from a
room, no more than two requl'red exits shall enter into the same exi't. system.
1017.3 Travel Distance.
1017.3.1 In rooms. The distance from any point in a room shall not be more than 75 feet (22 860
iyim) from an exit corridor, an enclosed stairway or the, exterior of the buiIding.
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. 1 0 17.3.1-1017.9
1994 UNIFORM BUILDING CODE
EXCEPTIONS: 1. In buildlngs not m0fe than MO storie.sin height and protected throughout with smoke
detectors, the distance may be 'increased to 90 feet (27 432 mm).
2. In bttildi"ngs protected throughout by an autornatic sprinkler system. the distance may increased to I 10
feet (33 528 nim). J� T Y1 1) e, I
1017.3.2 From any location. All 'Portions of unsprinklered buildings shall not be more than 1 50
feet (45 720 mm) from either an exterior exit door. a horizontal exit, an exit passageway or an en-
closed stairway measured along the line of travel. In a building protected throughout with an auto-
matic sprinkler system such distance may be increased to 225 feet (68 580 mrn.). In buildings not
more than two stories in height protected throughout with smoke detectors, the distance may be
increased to x.75 feet (53 340 mm),
X017.4 Exits through Adjoi�zingRooms., Interior rooms may exit through adjoining or interven-
ing
rooms, prflvided the total travel distance through such rooms to an exit corridor does not exceed
that specified in Section 1017.3.1 and is a,.irect, obvi'ous and un sty ��te�ath
of el. Such
paths of exit travel shall not pass through kifcf7ns,, Storer_ooms restrooms', closet.s., laborator.ies'-;'-us-
ing hazardous materials, 'Industrial shops'or other similar places,
Foyers and lobbies constructed as required forexit coiTidors shall not be construed as adjoining
inter��e��ing or rooms,,
1994
10171'
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Every
shall I
When the only "leans of exit from a room is through an adjoining or intervening room, smoke Wit
detectars shall be installed throughout the area of the common atmosphere �h�-ough which ffie exiat fea (I
must pass. The detectors shall actuatealarms audible in the interior room and shall be connected to occul
the school fire alarm system, Do(
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EXCEPTIONS: I When the aggregate occupant load of the interior room or rooms is 10 or less, hour I
2,, When the enclosure,;,; forming interior roonis are less than two thirds of the fioor-to-ceiling height and set Xn
do not exceed 8 feet (2438 mm). tion 7
3. Rooms used exclusively for mechanical ani public utility service to the buildings'
wit
1017.5 corridors and Exterior Exit Balcon'l��.distar Corridor walls and ceilings shall be of not less
than one-hour fire-resistiveClose(
construction with openings protected as required in Section 1005.8.
EXCEPTION: When each room used for 'instruction has at least one exit door directly f -o the exterior at
ground level and when r o-oins used for assembly purposes have at, least one half of the required exits directly
to the exterior ground level, one-hour f � . Istive construction of corridor walls and ceilings .1
ire -res" ings is not required.
Any change in elevation of less than 2 feet.{f 1 0 mm) xn a corridor or exterior exit balcony shall be
by means of ramps.
The width aha corridor zn a Grotiip E, Division I Occupancy shall be the Width required by Sec:tion
1 003, plus 2 feet (G 10 mm), but not less than 6 feet (1.829 mm),,
I
EXCEPTIGIP+1: When the total number of occupants served is less than 100.7 the corridor may be, 44 inches
(1I18 mm) wide -
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1017.6 Exit Serving Auditoriums in Group E, Division I Occu anc-v. An exit serving an audi-
torl"um. and other rooms need provide only for the capacity of whichever requires the greater width if
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the auditorium is not to be used simultaneously with the other rooms,
1017.7 Laboratories. Occupants in laboratories having an area in excess of 2(]Q square feet (18.6
M2) shall nave access to at least two exits from the room and all portions of the room shallbe within
75 feet (22, 860 mm) of an exit,,
1D1.7.S Stairs,, Each floor above or below the ground floor leveI shall have got less. hd the required exit width shall bo equally' divided- between such stairs., Provided that stairs
stairs anthan two exit
serving an occupant load . of 1 00 or more shall be not less than 5 feet ( 1524 mm) ire clear width,
EXCEPTION.0
T11iS Section, does not apply to rooms used for maintenemcc, storage and similal, purposes.
101-7.9 Doors. The width of exit doors shall be sufficient to accommodate the occupant load
Served.,
SEC"
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1994 UNIFORM BUILDING CODE
101710-1019.3
1017.10 Lasement dooms, Exit stairw
.b ys from a basement shall open directly to the exterior of
the building without entering the first floor corridor.
10,17.11 Panic Hardware., Exit doors from rooms having an occupant load of 50 or more and
from corridors shail not be provided with a latch or lock unless itis panic hardware,
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1017.12 Fences and Gates, School grounds.may be fenced and gates therein equipped with locks,
provided safe dispersal areas are located not less than 50 fe- et ( 1 5 240 mm.) from the buildings. Dis-
persal areas shall be sized to provide an area of not less than 3 square feet (0.28 M2) per occupant.
Gates shall not be 'Installed across corridors or passageways leading to such dispersal areas unless
they comply with exit requirements. See Section 1 021 for exits from dispersal areas.
'SECTION 1018 — GROUP H OCCUPANCIES
Every portion of a Group H C)ccupancy havin'g' a floor, area of 200 square feet (1 8.5 9 m2) or more
shall be served by at least two separate exits.,
EXCEPTION -9 .0 Group H, Division 4 Occupancies having a floor area of less than 1 000 square feet (92.9
M2) may have one exit.
Within Group H, Divisions I, 2 and 3 Occupancies, all portions of any room shall be within 75
feet (?2 860 mm) of an exit door. Exit doors from a room classified as Group H, Divisions 1, 2 and 3
11
Qcc��pancies shall not be provided with a latch or is lock unless it'panic hardware,,
Doors leading to a corridor of firs --resistive construction shall have a minimum three-fourths
hour fire -protection raking; shall not have more than 100 square inches (0.0645#'
M2).Of wired glasl
d."�`set in steel rames; shall be maintained self-closing or shall be automatic closing as defined in Sec.
7 i:k I
tion 7 1 3.2; and shall open 'in the direction of exit travel.
Within Group H, Division 7 and within fabricatian areas of Group H, Division 6 Oc cu ancies,the
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distance of travel to an exterior exit door, exit corridor, horizontal exit, exit passageway or an en-
closed stairway shall not exceed 100 feet (30 480 mm),
SECTION 1 019 — GROUP I OCCUPANCIES
1019.1 Exterior Doors., All required exterior exit doors shall open xn the direction of exit travel,
1019.2 Minimum Size of Exits. The clear width of exits serving areas occupied.orused bybed or
hitter patients shall be such that it will allow ready passage of such equipment, but shall not lle less
than 44 inches ( 1 1 18 mm). Other exits shall have acl ear *width of not less than 32 inches (S 13 mm).
There shall lie no projections into the clear width.
1019.3 Corridors., The minimum clear width of a corridor shallbe determ�nedas specifiied in
Section -1 003.2, but shall not be less than 44 inches (1118 mm),, except that corridors serving any
area housing one or more nonambulatory persons shall not be less than 8 feet (2438 mm) in width,,
EXCEPTION: Corridors serving surgical aireas of Group 1, Division 1.2 Occupancies- sh-all not be le._,ss
than six -feet (1829 mm) in width until reaching an exterior door, enclosed ekit stairway -or horizontal exit and
shall not pass through aft adjoining rooln,
Any in change elevationof the floor in a corridor serving nonambulatory persons shall bye made
by means of a ramp,
Corridors shall comply with Section 1 005 except that in hospitals and nursing homes classified as
Group I, Division 1,1 Occupancies the following exceptions apply:
1. Nurses' stations including space for doctors' and nurses" charting and communications con-
structed as required for corridors need not be separated from corriclors
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2. Waiting areas and similar spaces constructed as..required for corridors need not be separated
from corridors, -provided: ` f
1-193
I
302.4-303.1.1
1994 UNIFORM BUILDING CODE_
may be further reduced to one hour where the area of such Group 8, Divisim 3 Occupancy does not exceed
3,000 square feet (279 m2). .
3. In the one-hour occupancy separation between Group R, Division 3 and Group U Occupancies, t1le sepa-
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ration may be limited to the installation of materials approved for one-hour fire-resstive construction on
garage side and a self-closing, tight -fitting's 0jid- wood door 13/8 inches (35 rnm) in thickness, or a self-clos' the
fight -fitting door having a fire -protection rat'ng 0-f not less than 20 minutes when tested in. accordance with
Part 11 of U.B.C. Standard 7-2, which is a part of this code, Init in lieu of a one-hour fire as . sembly.
Fire dampers need not be installed in air ducts passing through the wall, floor or ceiling separating a Group
R, Division 3 Occupancy frojii a Group U Occupancy, provided such ducts within the Group U 0CCUP,UjjCV
are cOnstracted of steel fav ina thickness not less than 0.019 ffich (0.48 mm) (No. 26 gatvanized sheet gage)
arid have no ope,nings into the Group U Occupancy.
4. Group H, Divlsloii 2 and Group H,Division 3 Occupanci.es need not be separated from Group H, Divi-
slon 7 Occupancies When such occupancies also comply w,th t e &
reqmrements for a Group If, Divisl'on 7 Oc-
cupan c y
302.5 Heating Equ*
ipment Room Occupancy Separation. In Groups A; BI E� F1 1; M; R, Divi-
sion i and S Occupan c1C S . roolyis con taini ng a boil er, central heating plant or hot- w atersuppl y boil-
er shall be separated from the rest of the building by wt less than a one-hour occupancy separation.
EXCEPTIONS: 1. In Groups A, B. E, F, I., M and S Occupancies, boilers, central heating plants or liot-
1
water supply bo'lers where the largest piece Of fuel equipment does not exceed 400 000 B'
kW) 'input.
to per hour, U 17.2
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2 In Group R, Di'vision I Occupancies, aseparation need not be provided for such rootns witilequipmeat
serving only or dwelling unit.
In Group E Occupancies, when the opening for a heater or equipment room is protected by a pair
of fire doors, thel"nactive leaf shall be normally secured in the closed position and shall be op -enable
only by the use of a tool. An astragal shall be provided and the active leaf s -hall be self-closing,
In Group H Occupancies, rooms,containftig a boiler, central heating -plant or hot-water supply
boi�.ershall be separated from the rest of the building not less than a two-hour occupancy separa-
tion. In Div�szo��s I and 2
there shall be no openings in such occupancy se
X - Y afion except for. neces-
sary ducts and piping.,
For opening in exterior walls of equipment rooms in Groups A, E or I Occupancies, see Section
303.8.
302.6 Water Closet Room Separation., A room inrated from food preparation or stora e, rooms whl'ch a watei- closet is �.�c���dshall bye sepa-
9 by a tight -fitting dom
SECTION 303 .. REQUIREMENTS FC R CROUP A OCCUPANCIES
3(13.1 General.
M include
303.1.1 Group A Occupancies derined., Grou., A Occ pancies structure, or a portion thereof, for the gatheringP the use of a building or
together of 50 or more persons for purposes such as
civic, social or religious functions, recreation, education or instruction., food or drink consumption,
or awaiting transportation. A room or space used fax assembly Purposes by less than 5-0 persons and
accessory to another occupancy shall be included as a pail of that major occupancy. Ass embloccu-
pancies shall include the following:�
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Division 1. A bu��d�ng or portion of a buildmg having an -assembly room With an occupant load of
1,[)0a or more and a legitimate stage.
Division Z. A building or portion of a building having an assembly roorn with an occupant Iaad of
4 a
less than 1,QClO and a legitimate stage,,
JD�vision 2.I. A building or portion of a buiIding having
staof 300 or nio.re without a leg�tima�ean assembly room with an occupant load
stake, Including such buildings used for educational uoses
and not classed as Group B or E Occupancies. prp
Division 31* A buiidizlg or Portion of a building having an ass emblyroom with an oceupant load of
less than 300 without a legitimate stage, including such buildings used for educational purposes and
not classed as Group B or E Oc�,upanc�eso
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1994 UNIFORM BUILDING CODE
a
303.1-1-303.2.2.3
Derision 4. Stadiums, reviewing st�nd� and amusement park st�'u�tures not in�lude� within other
Group A 01ceLipancies. Specific and general requirements for grands t an ds, b I e ac hers and reviewing
stands are to be found in Chapter 10.
303.1.2 Occupancy separations. For occupancy separations, see Table 3-B.
3Q3.1.3 Amusement building:, Amusement buildings shall conform with the requirements of
this code for their occupancy classification in addition to the provisions set forth in Sections 4[38,
904.2.3 and 1013.6.
EXCEP.,rION: Amlisernent buildings or portions thereof which are without wars or roof and constructed
to prevent the accumulation of smoke in assembly areas.
303.2 Constru-cflon, Height and Allowable Area.
303.2.1 General, Unless otherwise specified in this section, buildingsor portions of buildings
classed in Group A Oc cup anc y, because of the ase or character of the occupancy, shall be limited to
the types of construction set forth in Table 5-B, and shad not exceed in area or height the limits spe-
cified in Sections 504, 505 and SDS.
3V3.2.2 Special provisions.
The roof -framing system for the roof ceiling assemble in one-story portions of buildings of Type
11 Dnp -hour, Type III Cane -hour or Type V One-hour construction may be of unprotected construc-
tion when such roof -framing system is open to the assembly area and does not contain concealed
spaces.
Stages and platforms shall be constructed in accordance with the provisions of Section 405.,
The slope of the main floor of an assembly roam shall not exceed the slopes permitted in Section
1007.
Group A assembiv rooms having an aggregate occupant load of 1,000 or more shall not be located
in a -basement, except basements in buildings of Type I or Type 11-F.R.. construction._
Gymnasiums and sirnilax occupancies may have floorsurfaces constrUcteci of wcaoci or unpro-
tected steel or, iron.
In gymn as 1 um s having ars areanot greeter- than 3,200 square feet. (297 mz), 1. -inch (25 r��ri) nomi-
nal thickness tight tongue -and -grooved boards oar 14 -inch (19 mrrr) plywood wail capering may be
used an the inner side in fieu of 'fire -resistive plaster,,
For attic space partitions and draft stops, see Section 708,,
303.2.2.1 Division 2.1 provisions. Division 2.1 Occupancies with an occupant load of 1,000 oa-
more shall be ofType I, Type 11-F.R., Type 11 One-hour, Type 1I1 One-hour or Type €V canstructiorl,
except that the roof -framing system for one-story portions. of buildings of Type 11 One -h our or Type
III One-hour construction may be of unprotected construction whin such roof -framing system is
open to the assembly area and does _not contain concealed spaces.
303.2.2..2 Division 3 pr=ovisions. Division 3 Occupancies located in a basemeDtor above the first
floor shall not be of less than ane-bour firs -resistive construction,
Division 3 Occupancies with an occupant load of 50 or more which are located over usable space
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snan oe separaLeu rrQm such space ay not less than ane -hoer fire -resistive coiistruction.95.1iroc.71a
Fc�r Division 3 Qccupancies with a Group S, Division 3 parking garage in the basement or first
floor,see Section 311.2.2.
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3U3.2,2.3 Division 4 provisions. Grandstands, bleachers or reviewing stands of 7-1-1IYP e SII
Cane -hour, Type IV or Type V One-hour construction shah not exceed 40 deet (12 192 rnm) to the
highest level of seat boards, 24 deet (6096 mm) 'in cases where construction is Type IIZwN or Type
V -N; and 72 feet (365$ nim) incases where construction is with combustible members in the struc-
tural frame and located indooxs.
303.2.2.3-303.8 1994 UNIFORM BUILDING CODE
1994 UNI
Divi'szon 4 structures other than Type 111-N and Type V N grandstands., bleachers, reviewing openings
41 metype without roof, cover or en- shall be
stands and folding and telescopi*ng'seaunj4 of open skeletan-fra
closed usable space are not limited in area or height. assembli.
Erection and structural maintenance shall conform to these special requirements as well as with see recti
other appfic�.ble provisions of this code. 303.9 Fi
When the space under a Division 4 Occupancy is used for any purpose, including exits,, it shall be
separated from all parts of such Division 4 Occupancy, including exits, by walls, floor and ceiling of
not less than one-hour fire -resistive construction.
Fire Codi
For are
FACEPTIONS: 1. Exits under temporary grandstands need not be separated. SECTI
ndccontinO
2. The urside, of uous steel deck grandstands when erected outdoors need not be fire protected
ellen occupied for public toilets. 304.1 Gj
'Fhe building official tray cause Division 4 structures to be reinspected at least once every six Group
11101-1thqs'. sioiial or
Grandstands, bleachers or folding and telescoping sewing may have seat boards, toeboards, bear- ipI ancies
ing or base pads and footboards of combustible materials regardless of construction type. establisfii
Seating and exiting requirements for reviewing stands, grandstands, bleachers, and folding and linilited t(
telescoping seating are provided under Section 1QZ10 1. An
303.3 Location on Property. Buildings housing Group A Occupancies shall front dxrectly on or 2, Au
have access to a public street not less than 20 feet (6096 mm) 1r1 width. Thu access to the public street A, I V`
shad be a minimum 20 -foot -wide (6096 mm) right-of-way, unobstructed and maintained only as 3. Bai
access to the public street. The main entrance to the building shall be located on a public street or on 4..Bai
the access way. 5. Be;
For fire -resistive protection of exterior w al I s and openings, as determined by loeation on prapex- 6. Cai
ty, see Section 503 and Chapter 6. 7. Cir
3#33.4 Access and Exit Facilities. Exits shall be provided as specified in Chapter 10. (For special
exiting requirements., see Section 1UI6.) Access to, arid egress from, buildings required to be acces- 8. Ou
sibie
shall be provided as specified in Chapter 11. bye of un
For aniusenient buildings, see Section 4081. 9. D r:
303.5 Light, Ventilation and Sanitation. Light and ventilation shall be in accordance with Chap- 1 0. Ed
ter 12. The number of plumbing fixtures. shall not be less than specified in Section 2902.2. H. EIC
303.6 Shaft and
Exit Fnclosures..Exits shall be enclosed as specified in Chapter 10.
12.
Fir
Elevator shafts,
Went shafts and other vertical openings shall be enclosed and the enclosure shall
13.
F1(
be as specified in
Section 7 1 1.
14.
La
3Q3.'7 Sprinkler and Standpipe Systems. When required bar Section 9042. 1 or other proVisi*ons 15. Lei
of this code, automatic sprinkler systems and standpipes shall be desjigned and installed as specified
jr"",'Am, 4f��! 00MNS
.
, `' � � �'' '.�,,
%W!X,
in Chapter 9.
1.6. PU
303.8 Special Ha7aj•ds. Stages shall be equipped with automatic ventilators a,;;,, required in Sec -
1 7. Po
fioii 405.3.3. 1 8. P.ri
, . _ chimneys and heating apparatus shall conforna to the requirements of Chapter 3 1 ofthis code and 19. Pr(
-the Mechanical Code. 20. Ra
Motion picture machine booths shall conform to the requirements of Section 408.
2 1. Te"
PraScenium curtains shall conform to the requ i rem ents set forth iii UaB.C. S 1, which 1 For oc
a part of this code. (See. Chapter 35, Part 11.)
Class 1, 1.1 or IZI-A liquids shall not be placed or stored in any Group A Occupancy,, 304.2 C.
When he atijig equipment rooms are requ*ired to be separated, in accordance with Section 302.5,
exterior openingsi I n a boiler room or room containing central heating equipment a located to
304.2.1
use of ch
'I
i
Y
1994 UNIFORM BUILDING CODE
G�
ONO
303.8-304.2.1
Openings in another story or if fess than 10 feet .from other doors or windows of the same building
shall be protected by a fire assembly having a three -fourth s -hour fire -protection rating. such fire
assemblies shall be fixed, automatic or self-closing. dor heating equipment occupancy separation
see Section 302.5.
303.9 Fire Alarm Systems. An approved dire alarm system shall be installed as set forth in the
Fire Code in group A, Divisl"ons 1, 2 and 2.1 Occupancies.
For amusement building alarm systems see Section 4D8.5. 1.
SECTION 304 — REQUIREMENTS FOR GROUP B OCCUPANCIES
304.1 Group B Occupancies Defined.
Group B Occupancies shall include buildings, styucture�s, car portions thereof, for office, profes-
sional or service -type transactions, which are not elassiffied as Group H Occupancies. Such occti-
pancies include occEtpancies for the storage of records and accounts, and eating and drinking
establishments with an occupant load of less than SD. Business occupancies shall include; but not bt
limited to, the following:
I . Animal hospitals, kennels, pounds.
?a Automobile and other motor vehicle showrooms.
01 p*7 V/ P*� A fro
3. B anks.
4. Barber slops.
5. Beauty shops.
6. far washes.
7. Civic administratiane
S. Outpatient clinic and medical offices (w here five at-less patients iia a tenant space are incapa-
ble of unassisted self- preseryation).
9. Dry cleaning pick-up and delivery stations and self-service.
10. Eoccupancies above the 12th. grade. F#r 0e; e v L o i� Irss
11. Electronic dataprocessing.,
12. r ti .
13. for and nurseries
14. Land research.
15. Laundry ick ap and d
16. Police stations.
17. Past offices.
1$. Print shops.
19. professional services such as attorney, dentist, physician, engineer.
20. Radio and television stations.
21. Telephone exchanges,,
For occupancy separations, see Table, 3-B.
0
r
9
304.2 Construction, Height and Allowable Area,
304.2.1 General. Buildings or parts of buildings classed as Group B Occupancies because of the
use or character of the occupancy shall be limited to the tykes of construction set forth i'n Table 5-B.
E
M
MAL
P
304,291-304.8
1994 UNIFORM BUILDING CODE
Such occupancies shall not exceed, in area or height., the limits specified in Sections 5Q4, 505 and
506 and shall comply with the provisions of, this section*
304.2.2 Special prvvimsi"ans.
304.2.2.1 Laboratories and vocational shops. Laboratories and vocational shops in buildings
usedd for educational purposes, and similar areas containing hazardous materials, shall be separated
frozn each other and other portions of the building by not less than aurae-hourfire-resistive occupan
cy separation. When the quantities of hazardous materials in such uses do not exceed those listedit-r
Table 3 -D or 3-E, the requirements of Sections 307.5 and 307.8 shall apply. When the quantities of
hazardous materials in such uses exceed those lisped in Table 3-D or 3-E, the use shall be class'Ified
as the appropriate Group H Occupan�_1'Y7
o
xn
Occupants in laboratories having an area n excess of 200 square feet (z8,6 m2) shall have access
to at least two exits from the room and all portions of the room shall be within 75 feet (22 860 mm)
of an exit.
304.2.2.2 Amusement buiidings, Amusement buildings. with cc ant loadof less than 50
shall comply with, Section 408,.
304.3 Locatian on Property, For fire -resistive protection of exterior walls and openings, as de-
termined by location on property, see Section 503 and Chapter 6.
1
specified In Chapter :��0.'Se'e'also' See -
304.4 Access indExitFacilifies.. Exits shall be'p�-avided`as
tion 304.2.2. 1 for exits from laboratories,
Access to, and egress froin, buildings required to be accessible shall be p*-ovided as specified in
Chapter 11 *
304s5 Light, Ventiflativn and Sanitation. Light, ventilation and sanitation shall be in accordance
with Chapters 12 and 29 and this section.
304.x.1 Ventilation of flammabie vapors, See Section 1202.2.2 for ventilation of flammable
vapors.
I. C%dili91
304-5.2 Sanitation. The number of plumbing fixtures shall not be less than specified in Section
12902.3.
304.6 Shaft anti exit I+,nclosUres. exits shall be, enclosed as specified in Chapter 1 0.
Elevator shafts, veiit shafts and other openings through floors shall be enclosed, and the enclo-
sure shall be as specified In Section 7 11
In buildings housing Group B Occupancies equipped with automatic sprinkler systeats through-
out, enclosures need not be provided for escalators where 'he. topt of the escalator opening at each
story is provided with a draft curtain and automatic fire sprinklers are installed around the, perimeter
of the opening within 2 feet X61 0 nim) of the draft curtain. The draft Curtain shall enclose the perim-
eter of the unenclosed opening and extend firom the ceiling downward at least 1-2 inches (3-05 mm)
on all sides. Tile spacing between sprinklers shall -not exceed 6 feet 0 829 mm),,
3+D4.7 Sprinkler and Standpipe Systems. When required by Section 904.2-1 or other
provisions
of this code automatic sprinkler'systems; and standpipes shall be 1'nstalled as specified in Chapter 9.
AA
rq30-4.8 pe'cial Hazar s. Chimneys an heating apparatuss, shall conform to the requirements of
Chapter 31 of this code and the Mechanical Code.
Storage and use of flammable and combustible liquids shall be in accordance with the Fire Code.
I)ev€Ce5 generating a glow, spark or flame capable ofgn"ting f2arnmable .1 vapors shall be installed
such that sources of ignition are at least 1 8 inches (457 mm) above the floor of any room in which
Class I flammable liquids or flammable gases are used or stored.
1-30
and
ngs
ted
IM)
i 50
de -
A
)_
d in
4
ce
F
tion
zgh-
,ach
nm)
ions
!r 9b
sof
[led
►ch
1994 UNIFORM BUILDING CODE
SECTION 305 — REQUIREMENTS FOR GROUP E OCCUPANCIES
305.! Group E Occupancies Defined. Group E Occupancies shall be:
Division 1, Any building used for educational purposes through the
persons for more than 12 hours per week or four hours in any one day.
Division 2. ,Ani building Usett for educattnnal purposes through the
persons for more than 1-2-, hours per week or four hours in any ons day.
F3
5-305-2.3
12th grade by 50 or mire
1-
12th grade by less thaf5Cl
Division 3. Any building or portion thereof used for day-care purposes for more than six persons.
For occupancy separations, see Table 3-S,
34j.2 Constriction, weight and Allowable Area.,
345.2.1 Generale Buildings or parts of buildings classed in Group E because of the use or charac-
terof the occupancy shall be I im 1 ted to the types of construction sit forth in Table S -B and shall not
exceed , in area oi� heights the limas s�eci�ied in Sections SQA, 505 and 506, except that the area may
be increased by 50 percent when the maximum travel distance specified in Section 14D3.4 is re-
duced by 50 percent,
3051.2 Atmospheric separation requirements.
305.2.Z. 1 Defi nitions, For the Purpose of this chapter and Section 10 1 7, the following definitions
are applicable.-
COMMON
pplicabie:
CO1V1iVION ATMOSPHERE. A common atmosphere exists between roarns, spaces car areas
within a building which ars not separated by an approved smoke-- and draft -step barr'ler.
SEPARATE ATMOSPHERE. A separate atmos here exists between rooms, spaces car are��s
that are separated by an approved smoke ban -ler,,
SMOKE BARRIER, A smoke barrier consists of walls, partitions.,, floors and ens
as will preventthe tri 3 r
�gases th the coniSee905.
tri.
305.2.2.2 Genei-al provisions. The provisionsi secte.
required in accordance with Section 1017. 1 oil apply when a separate exit system isi
Walls, Partitions and floors forming all orpart o� a� armosphe�ic separation shall be as required
by Section 905.2.3. Glass lights of approved wired lass yet in steel frames mai be installed fn such
walls or partitions,
All automatic -closing fire assemblies installed in the atmospheric separation shall fie activated
by approved snake detectors.
The specific requirements of this section are not intended to present the de -sign or LPse of ether
systems, equipment a� techniques which wild effectively prevent the prodLicts., of combustion from
_breachin; the atmospheric separation
305.2.3 Special provisions.. Roomsin Divisions I and 2 OccupancleS Used for kindergarten,
orsecond-grade pupils, and Division 3 Occupancies shall not be locatedabove or below
story,
havingEl XCEPTIONS: 1. Basements or s'tories floor levels IoUtted within 4 feet (1? - measured
vertically, m eadjacent ground level at 1-1 + hit of exit, Provided the a sits •
the exterior t that level.irectly to
2. In buildings equipped with an automatic
sprinkler sy.,stem thrMlg Out, rooms used for- kindergarten, first-
and
i-sw
-care purposes may be located on the second Str� �.
least twoidirectly tt fir, provided there� attri r� for the exclusive use Of soda occupants.'
, �.rpe 'taiction and In
3. Division 3 Occupaiiciesy be looted above the firststory In buddings af-T cons
Types 11-F.R., 11 One-hour and III One-hour constructio'n, subject- -to the I'mitation O -'f Section 506 when
3.1 Division 3 Occupancies with children under the age of seven or containing more, than 12 ch4
per story shall not be located above the fourth floor; and ildren
1
I
3Q5.2.3-305.5 1994 UNIFORM BUILDING CODE
3.2 The enurc story in which the care facility is located i d with- an approved manual fire
alarm and smoke-det-ection systern. (See the Fire Code,) Ac
orad n audible alarm thrMirestory.oughout � initiatincF 0 9 D
Wlien a bull(ling fire alai- t -
by other provisions this code or the Firstem is require
�
th �fl rm P tri shall be connecte-dthe, build-
ing
An appro ved al r--irm signal shall
d at an approvedloc atjon ire the day-care care
Cate a fire alarm Or 4 thebuilding; and
3-3 The day-care tacilitY, if more than 1,000 ur feet(92.9r 4.
in area i
divided
„
d1�i
d d int t leas
t twcrt tapproximatelyth samesize by a smoke barrier with ���smoke-ndraft-control assemblies havingfie.-
t tnprotected
Smoke i rating [ l than 20,minutcs.
barriers rl I have a fire -resistive
ve rating of riot less than one hour. Iri addition to the reqUire-
rtseparaflons between
cies shall be constructedsmoke barriers. Door open'
with st installed ings in the sn-iokc barrier shall be Jght fitting
the automatic sp '1�kjers required Section 1005,
andshall be automaticclosing Riad o of
ri , fire ni or -detection. � t m.Openings
-� Ing, ventilating and .ir- ° , inu oPeniiigs shall b
e equipped with a mininium Class 1, 250T.
r ducts ��i ter �t�t�
(12 1 'C.) smoke damp'er as defined and tested
in accordance ith approved rccognized stai)dards.
See Chapter 35, Part Ill. The damper shall close upon detection of smoke'by
detector located withili the duct, or upon the activation of the fire a system; r.
smokend
3.4 Each compartment formed by the
barrier li cis not les t �jj twi
is per-
i . tadjoining r
and
3.5 At least one exit fl -0111 the
t i ri 3 Occup-alleyshall be t t1to aseparate exiting
in Section 10 17 atid
3.6 The building is
equippod with aii UIWMatie sprinkler systeni t u . haat.
Stages and platforms shall be Con ped accordance with Chapter For
ndraft stops, � Sect,on t��.
F
305.2.4 Special hazar(Isa Laboratorpes, vocational shops and similar areas containinghazardous
Materials shall be separated frorri each ager and frorn c�ti�erPortionso f the bu1'1,d1'ng'hy t fess than
d one-hour fire-ires��tiwe occupancy separation. When the quantities of hazarclous materl'als insuch
uses do 'lot exceed those listed in Table 3-D ❑r 3-E, t��e requirements of Sections 307.5.Z and 307.E
shall apply. When iht� q uantities t�f h azardo Lis materials zn SU ell uses exceed thosisteci zn ].'ah
or 3-E, the use sli�1.1 be classified as tfie appt-«���iGroupatH Occupanc�r. Ie 3-D
See Section 1017.7 dor exiting f-rojyj lin GrOLI
'P E Occupancies.
Equipidnent in morns orgroups afrooins sharing a common atmosphez•e where flammableliquic�sco��nbus�i�le du':�t �r haLardvus m�ter�a�s are used, s�n�-ecidev�Ioped t��- handled shad cant i
req�zixe��r�ent5 0�= the Firs Codi. o�rrn to tie
305.3 Location on Property. All buildl' rigs housing Group E,, Occupancies shall front directly�
car have access to a public street not less than 20 feet (6(}96 min) in width. The access to the public
street shah be a minilnum 20 -foot -wide (6096 n -m) right-of-way, unobstructed and amain ained
only as access to the pub.lic strect. A.t: least one required exit shal.I be located on the public street or on
the access way.
For fire -resistive 1)rotecion of e " . waty, see Sect'503.11s, . ngs, as _
etei-mined by loc.ation on proper -
Ch ter .
305.4 Access and Exit Facilities. Exits shall be
iChapter 1��roiin S rit
A,
Access to, and earess frol-n. �unaings required to be accessible shill beprovided as specified C��apter I1. in
- 305.5 Light3-Ventlflafion and Sanitation. All ��ort3.o��.s of C7Y•�up E Occtipanc'es customa�•z1 oc-
cupied key hurnar� t�c;in�,5 sz�al� be pi"ovided with light and vent��ation, e.i�her- natural or artificial,
P�cifieu i�� Ch�lpter 12., See Section 1(}12 for required exit i�lumi��at�o2l. art��-�cia�, as
Tfie cumber of urinals and drink
Ing fountains shall he as specified in Sect"on 2902.4-
1 --32
d,
1994 UNIFORM BUILDING CODE
305.6-306,1
305.6 Shaft an d Ex�� 76 a, Enclosures. Exits sh el ( f" ri 01.Fleti�ai-al-
sl�.�fts,0 1 1-7 0S S speenie,., in C.,4apter vent shafts and other vertical openinas shall be enclosed f N
fied in Section 71 1 1� Z7) I ani the enclosure shill 11 S specl-
305.7 Sprin
of this code, �
in Chapter 9.
kler and Standpipe Svsterns, When
require b -y Section
9 or other p1�c��,�isians
utomaticspripkler systems and standpipes shall be designed and installed as spe6fied
.Saerx A, 90. VI/
it -0 ;Zwo
4
305.8 Special Hazards. Chimneys and heating apparatus shall conform to the ret.-jutrements of
Chapter 31 of phis code and the Mechanical Cede,
Motion picture machine rooms, shall conform to the requirements of Chapter 4.
d.
All exterior openings in a boiler room or rooms containing central heating equipment,
C) if located
below openlongs 'in another story or if less than 1 0 feet (3048 nim) frorn other dors or windows of
the same building, shall be protected by a fire assembly having a three -fourths -hour fire -protection
rating. Such fire assemblies shall'be fixed, automatic closing or self-closilig,
Class 1, 11 or 111-A liquids shall not be placed, stored' or used in Gz-oup E Occupancies, excleptin
approved quantities as necessary in
laboratories and classroorns and for operation and maintenance
as set forth in the Fire Code.
30-5.9 Fire Alarm Systems. An a -p -proved fire alarm system shall be, prav�ded for Graup E p�;��a-
pa��cies
witF
h an occupant load of or more persons. In Group E Occupancies provided with
arl F
automatic sprinkler or detection system, the operation of
Such system shall automatically activate F
the school fire alarm system., Which shall include an alarm mounted on the exterior
F o- the g, F
Sec Chapter 10 for smoke -detection requirements. F
F
F
Foy- 'Installation requirements, see the Fire Code, F
F
SECTION 306 REQUIREKIENTS FOR GROUP F OCCUPANCIES .�
L
30i6.1 Group F C]ccu�an�ies Defined. Gi'QUp Occupancies shall include the use of a building or
structure, or a portion t
hereof, for assembling, disassembling, fabricating, finishing, inanufactur-
ing, packaging, repair orprocessing operations that are not classified as Group H Occupancies. Fac -
f` tory and -industrial occupancies shall 'Include the following*
Division L Moderate-bazard factory and industrial occupancies shall include factory and indus-
trial uses which are not classified as Group F. Division 2 Occupancies, but are not limited to f`aci]i-
ties producing the following:
L 1. Aircraft.
2. Appliances.
r
3.
Alb letic equipment.
4. Automobiles andothei motor vehicles,
5. Bakeries.
6. Alcoholira
ges,,
7. fficycles.
8. Boats.
L
9. Brooms and brushes.
10. Business machines.
I I . Canvas or similar fabric.
12. Cameras and photo equipment.
I
ILDING CODE
that is
located
'Issi
(cc! in rooms
cessary uses
ire feet (465
=qutrecj dor a
'd by at Ieast
-lassjed
I floor
installed in
,,h -
'ch can be
pace below
)9.6.'
dineery
all amuse!
ilr main
jer water,
temponary
i t is less
!shout the
Is to such
in area anci
r tra t bl
backdrop.
)1e Storage
uiIdings
directly
�► w, :11 I
1994 UNIFORM BUILDING
s
904.2.4.3-904.3.1
904.Z.4,3 Stairs. An automatic fire sprinkler system shall be installed in enclosed usable space
below or over a stairway in Group E, Division 1 Occupancies. See Sectj .on 10D9.5.
904.2.5 GrouE 14 occupancies.
904.2.5.1 General. An automatic fire -extinguishing system shall be installed 'in Group H,Divi-
sions I, 21 3 and 7 Occupancies.
9(}x.2.5.2 group H, Division 4 Occupancies. An automatic fire -extinguishing system shad be
installed in Group H, Division 4 Occupancies havin� a floor area of more than 3 ,(300 square feet
(279 M2).
9U4.2.5.3 Group H, Division 6 Occupancies. An automatic fire -extinguishing system shall be
installed throughout buildings containing Group H, Division 6 Occupancies. The design of the
sprinkler system shall not be less than that required under U.B.C. Standard 9-T for the occupancy
hazard classifications as follows:
LOCATION
OCCUPANCY HAZARD CLASSIFICATION
Fabrication areas : Ordinary Hazard Groep
Service rr . r Ordinary Haz rd Grokip
Storage rooms without dispensing
Storage rooms with dispensing
Ordinary HazrGroup 2
Extra ar Group
Exit condors Ordinary Hazard Group 21
lWhen ffie designre f the sprinkler system coiisists
number of sprinklers that needs to, be calculated 13.
904.2.6 Group I Occupancies., An automatic sprinkler system shall be installed in Group I OCCLI-
pancies,
EXCEPTION: In "ails, prisons and reformatories, the piping system r provided nu ll op-
erated valve is 'Installed at a continuo usly monj t x d loc ation., Openi ng of the val ve will cause the piping
tem to be charged. Sprinkler heads in such systems shall be equipped with fusible elements orthe system shal1
�
be designedi
required for deluge systems uU.B.C. Standard
904,2.7 Grou Occupancies, An automatic s�rinkler system shah be 'installed in retail sales
rooms classed as Group M Occupancies where the floor area exceeds 12,000 square feel on any
floor or 24,Q(]0 square feet an a13. floors or in Group M retail sales occupancies more than three sto-
ries in height. The area of mezzanines shall be included in determining the areas whe3-e sprinklers
are required.
944.2.$ C���R,� Division 1 Occupancies., An automatic sprinkler system shall be installed
throughout every apartment house three or more stogies in height or containing 16 or more dwelling
unit, every congregate residence .three or more stories in height or having an occupant load of 20 or
more, and eery hotel three or more gories in height or containing 20. or more lzuest roams. Residen-
tial or quick -response standard sprinklers shall be used in the dwelling snits and guest room por-
tions
of the building.
9U4.3 Sprinkler System Monitoring and alarms.
X04.3.1 Where, i--equi red. All valves controlling the water supply for automatic spt•inkler systems
and water -flow switches on all sprinkler systems shall be electrically monztored where the number
of sprinklers are:
„�� � 5. Througliout all buildings with a floor level with an occupant load of 30 or more that 'is located
55 feet (16 764 mm) or more above the lowest level, of fire department vehicle access.
EXCEPTION, 1. Airport cowrol towers.
2. Open pairking structures_
3. Group F, Division 2 Occupancies.
904.2.3 Grau�A Occupancies.
904.2.3.1 Drinking establishments. An automatic Sprinkler system shall be installed in rooms
used by the occupants for the consumption of alcoholic beverages and unseparated accessory uses
where the total area of such unseparated rooms and assembly uses exceeds 5,000 square feet (465
M2). For uses to be considered as separated, the separation shall not be less than as required for a
one -hour occ up ancy separation. The area of other uses shall be included unless separated by at least
a one-hour occupancy separation.,
904.2.3.2
Basements.
An automatic sprinkler system shall be
installed xn
basements classified as
a Group A
Occupancy
when the basement xs larger than 1,500
square feet
( 1 39 m2) in floor area.
OA43AN
3Y2T03T
-904.2.33 Exhibition and display rooms. An automatic sprinkler system shall be fnstaiIed in
Group A Occupancies which have more than 12,000 square feet ( 11-2 m2) offloor area which can be
used for exhib4i"on or display purpnseso
904.2.3.4 Stairs. An automatic sprinkler system shall be instailed zn enclosed usable space below
or over a stairway in Group A, Divisions 2. 2.1, 3 and 4 Occupancies. See Section1009.b.
z
904,v24,15 . Muititheater complexes. An automatic sprinkler system shall be installed in every
buiiding,containing a mulfitheater complex. -
904 -2.3.6 Amusement buildings. An automatic sprinkler system shall be installed in all an-luse-
ment buildings. The main water -flow switch shall be electrically supervised. The sprinkler main
cutoff valve shall be supervised. When the arnusement building is temporary, the sprinkler water -
Supply system may be of an approved Ve.&Mporary type,
EXCEPTION: An automatic sprink1er sFcm need not be provi'ded when the floor area of a temporary
amusement building is less than 1 000 square feet (919 m2) and the exit travel distance from any point i's less
thaii 50 feet (1 240 i -nm).
904.2.3.7 Stages. All stages shall be sprinklered. Such sprinklers shall be provided throughout the
stage and in dressing rooms, workshops, storerooms and other accessory spaces contiguous to such
stages.
EXCEPTIONS: 1. Sprinklers are not required for stages 1,000 square feet (92.9 M2) or less in area and
50 feet (1542 mm) or less in hel'ght where cuirtains, scenery or other combustible hangings are not retractable
vertically. CoTri bustible hangings shC1111 be limited to a single main curtain, borders, legs and a single backdrop.
2. rider stage area less than 4 feet' (1219 mm) in clear height used exclusively for chair or table storage
and fined on the inside with -5/8-incb (16mm) T .X gypsuiii wallboard or an approved equal.
904.2.4 Group E Occupancies.,
904.2.4.1 C`reneral. An automatic fire sprinkler system, shall be installed throughout all buildings
containing a Group E, Division -1. Occupancy. %?
EXCEPTIONS: 1. When each room used for instruction has at least one exit door directly to the exterioll-
at ground level and when rooms used for assembly Purposes have at least one half of the required exits directly
to the c,,xtefior ground level, a sprinkler system need not be provided.
2. When area se'paration walk, oroccupancy separation's having a fire-res1stive rating of not less than two
hours subdivide the building into separate compartments such that each compartment cont'ain's an aggregate
floor area not greater than 20,000 square feet (1858 m2), an automatic sprinkler system neM not'be provided,
9(14.2.4.2 Basements.. An automatic sprinkler Pr v, ctptin eli -u I 1 be in�ta11ed " ba:�crrtentsGroup E, Division I Occupancies.,III classified -Us
1-156
I
9
NG CODE
*Vices and
ung agent
re depairt-
ii.ch sfair
i during
l under-
lixed
into
:S a all.
rioke,
mechan-
imit and
limit the
andards,
ger shall
eke from.
I
nk sys_
ane.
rences,
lipmeni
of fires,
/�-Inch
(38.1
h {63.5
ucers.
yoke is
be -
1994 UNIFORM BUILDING CODE
SECTION 904 — FIRE -EXTINGUISHING SYSTEMS
904.1 Installation Requirements.
9a4.1,1 General. Fire -extinguishing systems
dance with the requirements of this section,
904-904.2.2
required in this cme sball be installed in accar-
Fire hose threads used in connection with fire -extinguishing systems shad be national standard
dose tread or as approved by the fire department.
The location of fire department dose connections shad be approved by the fire department.
In buildings used fox �i�h�piled combustible storage, fire protection shall bein accordance with
the Fire Code,
904e162Standards.Fire-extiF
in stem shall comply with
EXCEPTIONS: 1. Automatic fire -extinguishing systems not covered by U.B.C. Standard 9-1 or9-2 shall
be approved and installed in accordance with approved standards,
2. Automaticsprinkler systems may be, connected to the domestic water -supply
the building fi r l., provided the ic water supply -s of adequate pressure, capacity and s*lzing for the
systemcombined domestio and sprinkler requ" the publ'irements. In such case, the sprinkler connection shall b made
}rr�r T r or m'efer
bu ilding tof , and there h Z not 'intervening
or connections. The fire departmcnt connection may be omitted when approved by the fire department.
. Automatic SPTinkler systems in Grog 4
U1 - ��rir imay inU.B.C. Standard ®� r n i
904-4-3 Modi�icatinns. When residential sprinl�ler systems asset fa�-th i
n �T.B,C. Standard 9-3 a;
provided, exceptions to, or reductions in, code requirements based on the 'Installation of an a��toma
is fire -extinguishing system are not allowed.,'� � �;� � J&
9Q4.2 Automatic Fire-pytinonidhing systems.
904.2.T where required. An automatic fire -extinguishing system shall be installed in the occu-
pancies and locations as set fort], in this section.
For provisions on special hazards and hazardous materials, see the Fire bode.
904.Z.2 All occupancies except Group R, I�iyision 3 and Group U Occupancies. Except For
Group R., DM'sion 3 and Gro -up U Occupancies, an automatic sprinkler system shad be installed. -
1. In every story or basement of all buildings when the floor area exceeets 1.500.,snu,are feed
(139.4 m2) and there is not provided at least 20 square feet ( 1 .$6 m2) of opening entirely above the
adjoining ground level in each SO lineal feet. (15 24th mm) or fraction thereof of exten' ar wa11 i n the
story or basement an at least one side of the bu"I
Openings shall have a minimum dimension of
not less than 30 inches (762 mm). Such ope��s shall be accessible to the fire, department from the
exterior and shall n0t be obstructed in a manner that firefighting or rescue cannot be accompl'shed
from the exterior.
When openings in a story are Provided on only one side and the opposite wail of such stark is
more than 75 feet (22 860 mm) from such openings, the story shall be provided with an approved
automatic sprinkler system, or openings as specified above shall be provided on at least two sides of
an exterior wall of the story.
If any port ion of a basement is located, more than 75 feet (22 $ 6Q rnm) from openings required in
this section: the basement shall be provide-d-wi'th an approved automatic sprinkler system.
2. At the tip of rubbish and linen chutes and in heir terminal roorns. Chutt-es xtending tbrou h
three or more floors sha�� ha��e add�tic�na� spr�r�kler heads installed within such chutes at sternae
floors. Sprinkler heacis shaIl he accessible for sc:rvicitig.
3. In rooms where nitrate film is stored ar'handled.
4. In Protected combustible fiber storage vaults as defined in the Fire Code.
1