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MARION COUNTY BUILDING INSPECTION 3150 Lancaster Dr. N.E. · Suite C · Salem, Oregon 97305-1398 Office Hours: 8:00-4:30 · Phone: (503) 588-5147 · 24-HR Inspection Line: (503) 373-4427 B~TE/TIflE TYPE OCCUPAHCY CONST TYPE Z The 12,088 sq ft Hangar D (b) is on the east side of the ~ ~ AREA SEPARATION WALL. ~ ~ Note: a 42.5~ allowable area increase is perl~itted for ~ ~ two yards. ~ AREA SEPARATION WALLS. (OSSC Sec 584.6) Area separation walls shall not be less than two-hour fire- resistive construction in Type II-N buiIdings. The total width of all openings in such walls shall not exceed 25 percent of the leng[h of the wall in each story. All openings shall be protected by a fire assembly having a one- and one-half-hour fire-protection rating in two-hour fire-resistive walls. AREA SEPARATION WAL. LS~ cnnt'd. Extensions beyond exterior walls. Area separation walls shall extend horizontally to the outer edges of horizontal pro~ecttng elements such as balconie% roof overhangs. canopies~ Marquees or architectural pro~ections extending be °nd the floor area defined in Section 28~ E~EPTIdN~: 1. When horizontal proSecting e[~Ments do not contain concealed spaces~ the area senaration wall May terminateat the exterior wall. 2. When the horizontal pro~ect~ng elements contain concealed s0aces~ the area separation wall need only extend through the concealed space to the outer edges of the pro~ecting eIeMents. AREA SEPARATI0N WAL. LSs con~d. Extensions beyond exterioc walls. EXCEPTIONS. coot'd: In either Exception 1 or 2, the exterior walls and the proSecting elements above shall not be of less than one'hour fire-resistive construction for a distance not less than the depth of the pro~ecting elements on both sides of the area separation wall. Opening within such widths shall be prefected by fire assemblies having a fire-protection rating of not less ~han three-fourths hour. ~ AREA SEPARATION WALLS, cont'd. Terminating. Area separation walls shall extend vertically from the foundation to a point at least ~0 inches above the roof. EXCEPTIONS: 3.Two-hour area separation walls May terminate at the under side of nonco~bustible ~'oof sheathing, deck o~ slabs of roofs of noncombustible construction'provided. ~.10~enings i~ the roof are not located within 5 feet of toe area seoaration wall. 3.2 The entire building is provided with not less than a Class B roof cover[ng as specified in Table 15-A. CONTACT PERSONS: Donald K. Miller, Beputy State Fire Marshal Office of State Fire Narshal 4760 Portland Rd NE Sa[.~ OR 77~85 PH: (583) ~7R-4~17 FAX: (58~) ~7~.-1825 Arno Fae~re & A~snciates 5~8 SW YaMh[l~ BUILDING PERMIT : 12/23/97 11:32 PERHIT HO : 97-e7685 : Ne~ Co~ercial STATUS : ISSUED : $-5 ISSUED : 12/23/1997 : II-H TO EXPIRE : ~6/21/199~ P~GE 4 of any ~ooM in which Class I flammable liquids or flammable ases are used stored. ~LLOWABLE or AREA INCREASES - HANGAR D (b). (OSSC Sec 585.1) Basic allowable area: 12,888 sq. ft. (S-5/II-N) Proposed area: 12~888 sq. ft. Hangar B (b) The actual area is equal to the basic allowable area.