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• FIRE AND SMOKE PROTECTION FEATURES i 4. The average and minimum bond strength values 705.2.1 Typel and IIconsbuetion.Projections from walls lihr shall be determined baud on a minimum of five of Type I or II construction shall be of noncombustible bond tests conducted in accordance with ASTM E materials or combustible materials as allowed by Sections 736. Bond tests conducted in accordance with 1406.3 and 1406.4. ASTM E 736 shall indicate a minimum average 705.2.2 Type III,IV or V construction-Projections from bond strength of 80 percent and a minimum imli- walls of Type Ill, IV or V construction shall be of any vidual bond strength of 50 percent, when corn- approved material, pared to the bond strength of the SFRM as applied to clean uncoated'frinch-thick(3-mm)stecl plate. 70513 Combustible projections.Combustible projections loomed where openings are not permitted or where protection 704.13.4 Temperature.A minimum ambient and substrate of openings is required shall be of at least I-hour fire-resis- temperature of 40°F (4.44°C) shall be maintained during tance-ratcd construction, Type IV construction,fire-remr- and for a minimum of 24 hours after the application of the dant-treated wood or as required by Section 14063, SFRM- unless the manufacturer's installation instninions allow otherwise. Exception:Type V construction shall be allowed for R-3 occupancies. 704.135 Finished condition. The finished condition of SEEM applied to structural members or assemblies shall 705.3Buildings on the same lot. For the purposes of deter- not,upon complete drying or curing,exhibit cracks,voids, mining the required wall and opening protection, projections androofcovering requirements,buildings on the same lot shall spells,delamination or any exposure of the substrate.Sun face irregularities of SEAM shall be deemed acceptable. be assumed to have an imaginary line between Chum. Where a new building is to be erected on the same lot as an existing building,the location of the assumed imaginary line SECTION 705 with relation to the existing building shall be such that the exte- rior wall and opening protection of the existing building meet the criteria as set forth in Sections 7055 and 705.8. 705.1 General.Euerior walls shall comply with this section. Exception: Two or more buildings on the same lot shall I705.2 Projeclions.Comices,cave overhangs.exterior balconies either be regulated as separate buildings or shall beconsid- and similar projections extending beyond the exterior wall shall eredasportions ofonebuildrng if the aggregate area of such (, pnfonn to the requirements of this section and Section 1406. buildings is within the limits specified in Chapter 5 for a sin- pc gle egress balconies and exterior exit stairways shall also gle building. Where the buildings contain different occu- comply with Sections 1019 and 1026,respectively.Projections pancy groups or are of different types of construction,the shall not extend beyond the distance determined by the follow- area shall be that allowed for the most restrictive occupancy ing two methods,whichever results in the lesser projection: or construction. I. A point one-third the distance to the lot line from an 705.4 Materials.Exterior waifs shall be of materials permitted assumed vertical plane in accordancewith Table 7052. by the building type of construction. 2, More than 12 inches (305 mm) into areas where open- 705.5 Fire-resistance ratings. Exterior wafts shall be ings are prohibited. fire-resistance rated in accordance withTables 601 and 602 and For the purposes of determining allowable projections from this section. The required fire-resistance rating of exterior �i buildings,the assumed vertical plans shall be measured at right walls(30 with a fire separation distance of greater than 10 feet angles from the lot tine or, for buildings on the same lot,an The r8 mm)shall be rated for exposure to fire from the inside. imaginary line in accordance with Section 705.3.Buildings on ,L The requircdfire-resisr¢ntt rating of exterior walls with afire the same lot and considered as portions of one building in separation distance of less than Cr equal to 10 feet(3048 mm) accordance with Section 705,3 are not required to comply with shall be rated for exposure to fire from both side. this section.The assumed vertical plane shall be parallel with 705.6 Structural stability.The wall shall extend to the height I the lot line or imaginary line. required by Section 705.11 and shall have sufficient structural stability such that it will remain in place for the duration of time Buildings on the same lot and considered as portions of one indicated by the required fire-resistance raring. building in accordance with Section 705.3 are not required to comply with this section. 705-7 Unexposed surface temperature. Where protected E 7052 openings are not limited by Section 705.8,the limitation on the TABLE ASSUMED TABLE 70 -2P (feet) rise of temperature on the unexposed surface of exterior walls as required by ASTM E 1 19 or UL 263 shall not apply.Where GROUP Type1,IP I TYPEatrv,tr protected openings ate limited by Section 705.8,the limitation A.B.E.F-2,I.R.5-2.U 3 5° on the rise of temperature on the unexposed surface of exterior M,S-I,F-I 5 ill walls as required by ASTM E 119 or UL 263 shall not apply H IS 2U' provided that a correction is made for radiation from the urtex- posed exterior wall surface in accordance with the following a Bumf on type orconsruc,ion in CTwpter 6. formula: a I-2 occupancies are not Fermium!in Type VR construction. c.H-I occupancies ore not pennined in Type VR construction. A,=A+(Aix Fro) (Equation 7-1) 2010 OREGON STRUCTURAL SPECIALTY CODE 103