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5. Sheathing: Provide types and thicknesses of sheathing shown on the Drawings and as specified herein: <br /> a. Floors: <br /> — Subflooring: 3/4 inch plywood; APA Rated Sturd-I-Floor, Span Rating 24, Exposure 1; touch- <br /> sanded; tongue &groove edges <br /> — Underlayment: 3/8 inch (or thickness required for Project conditions) plywood; APA <br /> Underlayment; Exposure 1; touch-sanded; square edges <br /> b. Walls: 1/2 inch plywood; APA Rated Sheathing, Span Rating 24/16, Exposure 1 or Exterior; <br /> unsanded; square edges <br /> c. Roofs: 5/8 inch plywood; APA Rated Sheathing, Span Rating 32/16, Exposure 1 or Exterior; <br /> unsanded; square edges. <br /> 6. Interior Foundation Insulation (where shown on the Drawings; over masonry walls; Lower Level): <br /> Extruded polystyrene; minimum 25 psi compressive strength; tongue &groove edges: <br /> a. Thickness: One inch (1") <br /> b. R-value: Minimum R-5.0 per inch <br /> c. "Styrofoam Tongue and Groove Brand" (Dow Chemical); or equal <br /> d. Mastic Adhesive: As recommended by insulation manufacturer. <br /> 7. Rigid Insulation Below Floor Joists Above Garage: Extruded polystyrene; minimum 25 psi compressive <br /> strength; tongue &groove edges: <br /> a. Thickness: 1-1/2 inches <br /> b. R-value: Minimum R-5.0 per inch <br /> c. "Styrofoam Tongue and Groove Brand" (Dow Chemical); or equal. <br /> 8. Sound Control Mat: Sheet-applied underlayment designed to reduce sound transmission; installed <br /> between subflooring and underlayment. <br /> 9. Fasteners: Hot-dipped galvanized steel for high humidity and treated wood locations; unfinished steel <br /> elsewhere. Fasteners and fastenings shall be in accordance with recommendations of UBC, AFPA and <br /> as shown on the Drawings: <br /> a. Nails: Fed. Spec. FF-N-1; common; except as otherwise shown on the Drawings or specified herein <br /> b. Screws: Bugle head; hardened steel; power-driven; length = three (3) times thickness of sheathing <br /> c. High Strength Bolts, Nuts and Washers: ASTM A 325, Type I or II; or as shown on the Drawings. <br /> 10. Anchors: Hot-dipped galvanized steel for high humidity and treated wood locations; unfinished steel <br /> elsewhere. Fasteners and fastenings shall be in accordance with recommendations of UBC, AFPA and <br /> as shown on the Drawings: <br /> a. Anchor Bolts: ASTM A 307; low-carbon steel bolts, regular hexagon nuts and carbon steel washers <br /> b. Toggle Bolts: ASTM A 307; for anchorage to hollow masonry <br /> c. Expansion Shield and Lag Bolts: Fed. Spec. FF-B-561; for anchorage to solid masonry or concrete <br /> d. Bolt or Ballistic: For anchorage to steel. <br /> 11. Structural Framing Connectors and Joist/Truss Hangers: Hot-dipped galvanized steel; types and sizes <br /> shown on the Drawings and as required to for Project and framing conditions: <br /> a. Simpson; Kant Sag; Semco; or equal. <br /> 12. Gaskets and Sealants: <br /> � <br /> a. Top of Foundation Wall / Below Sill Plate: EPDM double-bulb gasket; "BG-63" (Shelter Supply), or <br /> equal <br /> b. Top and Bottom of Rim Joists: EPDM single-bulb gasket; "BG-32" (Shelter Supply), or equal <br /> c. Top of Subfloor/ Bottom of Wall Plate: Non-hardening sealant; Tremco or equal. <br /> 13. Adhesive: APA AFG-01; waterproof; solvent base; air cure type; cartridge-dispensed. <br /> 633 SPECIFICATIONS <br /> Page 31 <br />