The URL can be used to link to this page

Home My WebLink AboutBUILDING CODE -00-00014 - McDonaldsMr. Loy Taylor McDonald'.s Corporation 5000 S.W. Meadows Road Suite 20Q Lake Oswego, Oregon 97035 wear Lay, STATE OF IDAHO P.O. Box 280 12 Narth Center Street Rexburg, Idaho 83440 Phone (208) 359-3020 Fax (208) 359-3022 e-mail rexburg@srv.net May 5, 2000 Attached are excerpts from the 1997 Uniform Building Code. {UBS} that may help your architect with his evaluation of what is needed for aone-hour fire rated wall and openings. UBC Table 5-A (pg. 1-55), Column C indicates that for an Occupancy group `B", & Construction Type 'V -N, an exterior wall les's than 20 ft. from a property line must have a "ane - hour fire z-aiing'>. emote that "Column 4- Openings" 'Indicates that openings (doors or windows) are "Not permitted if they are fess than 5 ft. from the p.roperty line"' and that they mint be "Protectedif they are less than 14 ft. from the property line." Also note that Footnote 5 at the end of Tahoe 5-A (pgli 1-58) indicates that 'Openings requiring protection in exterior walls shall be protected by a fire assembly having at least a three-fourths-hour-rire-protection-rat'ing." Also note "UBC Sec. 503.2.2 - Area of openings", which slates that: "When openings in exterior walls are required to be protecttd due to distance fromroperty dine, the sum of the area of such openings shah not exceed 54 percent of the total area of the wall in each story." Also note UBC Section 503.2.1 covering projections (in this case eves) from the building wall. The attached " example" from pgs 75 & 7+6 of the UBC Handbook xadicates that the eves cannot project any chaser than 5 ft. S inches from the property line. UBC Sec. 706 - Projection - n.& ates that "Combustible projections (eves) located where openings are not permitted or where protection of openings is required (10 ft. in this case) shall be of ore -hour fire -resistive construction." A one-hour fire -rated wall(ar ewes) could be of any number of combinations of materials. A concrete masonry wall gives more than aorae-hour fire rating. A 21t x 4ti stud wail with brick on the outside and 5/811, type X, gypboard an the inside would work. A 2'x 4" stud wall with 5/8"', type X, gypboard sheathing (& some type of exterior cladding) on the outside and 5I8" , type X, gypboard on the 1'nside would work. SBC Table 7B gives a number of types of different materials that will provide a one-hour fire -rated wall. The Fire Resistanco, Tlp.c;n 1errnnu27 Published by the Gypsum Association contains a number of different examples of one-hour fire - rated walls. Note that Yf You move the buildi'ngf-I feet a little blot South (so the north wall has at least lu clearance from the notch property line) that you eliminate inate the need for the 3/4 hr. fire -rated windows, the requirement that "the area of such openings shall not exceed Sa percent of the total area of the wall and the requirement for one-hour fire -rated protection for the eves. The north wall itself and any exposed structural members (columns, etc.) would still have to have a one-hour, dire-pratective rating,, As indicated in my previous plan review comments xf you move the north wall 20 Vit. south of the north property line oir, if we can 'include the driveway easement north of the north property line by giving it some degree of permanency, as descri' bed in the Development Agzeement,e requirement that the north wall itself have cane -hour fire rating also disappears. Hope the above comments answer the questions that your architect had.,. be of any further help. Very truly y JOSEPH. A. LAIRD, P.E. CITY ENGINEER &BUILDING OFFICIAL Let me know if I can 1997 UNIFORM BU'ILDING CODE TABLE 5-A—EXTERIOR 5—EXTERIORWALL AND OPENING PROTECTION BASED ON LOCATION ON PROPERTY FOR ALL CONSTRUCTION T PES1 X213 For exceptions, see 'tion 503.4. EXTERIOR WALE OCCUPANCY CONSTRUCTION GROUP4 TYPE -+., 11-F.R. TABLE Bearing I NonbearingPENIN � T Distances are measured to proles lines (see Section 503).- - - - - - 04.8 for rnm Four-hour NIC Four-hour NIC less than 5 feet Not permitted less than 5 feet Two-hour N/C less than 20 feet Protected less; than 20 feet One-hour N/C less than 40 feet j NR, elsewhere ' 11 One-hour than 10 feet Protected .- I H- l 0 feet LU M 1EOne-hour 111-N Group A, Division I Occupancies axe not allowed in these construction typos. IV-H.T. One-hour -2 I -F. . Four-hour NIC Four-hour N/C less than 5 feet Not permitted less than f t t A-2.1 Two-hour N/C less than 20 feet Protected less than 20 feet - III One-hour One-hour N/C less than 40 feet -4 W i. i. i . R7 /L elsewhere 11 Orae -hour Two-hour N/C less than 1 feet Same as bear except,NR, N/C 40 Not permitted less than 5 feet One-hour N/C elsewhere feet or greater Protected less than. 10 feet -- 12 111-N One-hour H One-hour lj_N� Group A, Divisions 2 and 2.1 Occupancies are not allowed in these construction types. Two-hour less than 10 feet One-hour elsewhere ere Two-hour N/C less than 5 feet -.One-hour X elsewhere Two-hour N/C less than 5 feet One -heir NIC less than 20 feet R, NIC ls,eh ore Four-hour One-hour Two-hour less than feet One-hour els hiere V -N Two-h.or .less than 5 feet One-hour less than 20 feet NR elsewhere 11 Ont -hour One-hour / 11-N One-hour less than 10 feet NR, N/C elsewbere III -N Fo r -h o uT X one-hour One-hour One -four less than. 10 feet NR elsewhere 1-F.R. `our -hour less thaD.5 feet �1 11-F.R. Two-hour elsewhere -1 -- III ane -hour JV—H.T. 11 Orae -hour n. -hour II -3 One-hour N/C less than 20 feet �1 "R, elsewhere One-hour One-hour S -12 S-3 One -lour less than 20 feet NR elsewhere Same as hearing Same as, hearing except NR, N/C 40 feet or greater Same as hean'n Four-hour NIC less than 5 feet Two- our less than 20 feet One-hour N/C less than 40 feet , N/C else -where Same as hearing .roe as bearing Same as bearing except NR, N/C 40 feet Or heater ae as hearing Four-hour/CFour-houtN/C l.css that 5 feet Two-hour N/C less than 20 feet One-hour N/C less the 40 feet R, elsewhere Same a� hearing Same as bearing Fn ur-ho ur less than 5 feet Terre -hour NIC less than 20 feet Our -hour N/C less than 40 feet R* N/C els-cwhere Same as bearing except NRI, N/C 40 fret or greater Sarne as hrarin . (Continued) Same as h acing Sar, . as hf.,Iarlti CP Not permitted less than 5 feet Protected less than 10 feet Not permitted less than 5 fet Protected less than 10 feet Not permitted less than 5 feet ProCeded less thaD 10 feet Not permlUed less than 5 feet Protected less than: 20 feet Not perrnitted less than 5 feet Protected less than 10 feet Not permitted less than 5, feet Protected less than 10 feet Protected less than 10 feet Prete d less than 10 feet Not permitted less than 5 feet Protected. less -than 10 feet Protected less than 10 feet Protected Tess than l 0 feet Not permitted less than 5 feet Protected lees than 20 feet Not permitted less than 5 feet Protected less than 10 feet Not peri rnttd less than 5 feet Protected less than 10 feet Not permitted less than het Protected less than 10 feet Not perinitted4ess than 5 f r"t Protected. less than 10 feet 1-55 SN! CA1 MFS SGA CD 2. ZZ: 0 �- TABLE LU M TYPE OF1 FIRE -RE MAS 9 TABLE 1997 UNIFORM BUILDING COD IE TABLE 5-A—EXTERIOR WALL AND OPENING PROTECTION BASED ON ON PROPERTYFO-R ALL TTS 1�� —(Continued) EXTERIOR Aft_ OPENINGS -5 Y v-- r '"a" " 5",t C4L:e3 cl4F.; _U U 1permirteci III these type f Construction,. Ot Permitted less than 5 fey Protected less than 20 feet V -N One-hour less than 3 feet3 Same as NR elsewhere than 3 feet U- -2 r� z dot regulated H.T.— Heavy 6mber. F.R. —Fire resistive. See Section 503 for teeof walls d 'LNays, sce also Sect' and require ireme�Tlts cOveTing ion 601.5.percentage of open' ngs permitted ifl cxterior �vafls. For walls facing stireet& 2Foraciditinnni-roctj yards and public and 6. For sPeclal Provisionsand exceptions, dee Table - f f a description of each occupancy type. Openings requiring protectioll in exterior walls shall be protected by a fire assembly having at least a th 6Gr�.p E, Divisionr�d �� -� �i� �`ire- rpt ti � .��: �r� �a��t �� f not �.�r ��>� �a �� rating. Division Occupancies. have etrrn openmg protect -ion -rq ui red for Group R, 7S e S ect oa 308.2.1, Excep tion I 1997 UNIFORM BUILDING CODE Chapter 5 GENERAL BUILDING LIMITATIONS SECTION 501 — SCOPE Buildings and structures shall compiy with the location on prop rtv, area, hel"uht and other provisions of this chapter. For additional limitations or allowances for special uses or u ancien, see the following; SECTION S CT 402 Atria. 403 High-rise office buildings and Group R, Division 1 Occupancies 404 Malls 311.9 Open parking structures 307 Group H, Division Occupancies 412 Aviation control towers 414 n"cultural uiidir 3111 M branstr-uctures SECTION 502 —PREMISES IDENTIFICATION Approved numbers or addresses shall be provided for all= new buildings in such a position as to be plainlyvisible and legible. from the street or road fronting the property; SECTION 503 — LOCATION ON PROPERTY #1 General. Buildings shall adl of n or have access to apublic. av r yard a not less than one side. cued yards shall r- an ntl maintained. For the purpose of this section, the center ling of an adiommg Public way shall bc considered an a dj ace u tp r rt line. also Section 120 3.4 . ) 503.2 Fire Resistance .4 General. Exterior wails shall have fire resistance and opening protection as set forth in Table 5-A and in accordance with such additionalrevisions as ars � t forth in Chapter 6. Dis- tancehail be. measured at right angle the r art Theling. above provision shall not a l � t X11 at right: angles t the prep rtT Projections bevond the ext trio r wall shat i comply with Section tio n 705) and shall not extend beyond. L A point one third the distance to the lime from an as - of..% seined vertical plane located where it -r si tiv r t ti n. of t Openings is first required due to location np r rt ; r More than 1 'Inches 05 mna) 'into areas where opcnings are -2.2 re openings. W rynin in p trior walls are required to be protected Niue to distance from ro rty, lire the orOf the area such openings shall not exceed 50 percent of the total area of the wail in each store, .r ,. .. 303 •Build'nnSame PrBuildingsop nContaim[ng U* For the purposes o dt . p r�nlr� i u. required all andopc. nln protection and roof -covering r iremcnts, buildingsan p rip rtT and court walls of buildings over one story in height Shall be, assumed t have a property ling between thorn. EXCEPTION: In ccurt walls where opening Protection is re- quired, -uir d, such protection may be o Ited, provided 1 not more than two 501 503-4.6 levels open into the court, the aggregate area of the b uildi n linclud- Ing the court k itb 1 n the aftwable area and the building is not -ci as ifi d as a Group 1ccu ancli, When a new building is to be erected on the an property as a existing ufld , the location o the assud property 11"ne with relation. to the existing building shall be such that the exterior wa1l and openincr Z7) protectionof the existing buildiug meet the criteria as set forth 'n Table 5-A and Chapter 6. EXCEPTION: Two or more buildings an the same properly may br, considered as portions of one building if the a me area -of such buildings is Within the lire its specified in Bastion for a single u ild - I�� T When the huildin s so considered house diffarmt occupancies (ir art of different typcs of construction, the area shall be that allowcd for the most restricted occupancy or constructimi. 03.4 Special Provisions and Exceptions to Table5-A. 503.4.1. General. The provisions of this section are exceptions to or special provisions of, the coustruction requirements Table -, Chapters 3 and d . 503.4.2 -Story Groups B, F, M and S Occupancies. in Groups B, F, M and S Occupancies=, a fire -resistive time . period will not required for an exterior wall of a one-story, Tvpe 1I -N building, provided the floor area of the building does not exceed 1,000 square feet and such email is located not less than fejt (1524 from arp t rt 1. 503.4.3 Fire -retardant -treated wood fra,ming. In 11.1 Types and IV construction, approved fire -retardant -treated wood am - 4 ing may used within the assembly trig walls when Table 5-A allows a fire -resistive rating two bours or less, rovid d the required fire resistance is maintained and the exposed outer and inner faces of such walls are noncombustible, 503-4.4 Wood columns and arches., In Types III and IV con- struction. wood columns and arches conforming to heavv-timber . saes may be used externally whein exterior walls are permitted t be unprotected, noncombustible constru .tin or when one-hour fire -r sitie noncombustible exterior walls are permitted. 503.4.5 Group H Occupancies—intaimum distance to prop- erty lines. Regardless of any other provisions, Group H Occu- panclesshall be set back a mill urn distance tante from property lines a i set forth n Items 1 thr u h 4. Distances sball be measured from the walls enclosing the o uan t property i1nes, including .P a p' ro p' those on a publicgay* 1. Group H, Division 1 Occupancies. Not less than 75 feet (22 860 and n t IeSS than required Table -F. 2. Group H., I ivisionupan i s. Not less than 30 feet (9144 mm when the area of the occupancy execeds x ' 0 00 square feet - i and it is not required to be located in a dt.d uidd- Ing, 3. Group H, Divisions andp Occupancies. Not less than 50 feet when a detached building is required. See Tabic 3-G.. , r r uDivisions'? aid3 Occupancies containing materi- a pit explosive characteriti t less than the distances' r- uir .d bxr TAb1 -F, 503-4.6 Group H, Division 1, 2 or 3 Occupancl*es—detached bul"Idings. When a detacheduildi is - uir d by Table GEN UMJ