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DocuSign Envelope ID: 313DA256 -1EDE- 4396- A716- 4C53B809027E <br />JERRY M. PASSMORE CENTER ADDITION AND RENOVATION <br />HILLSBOROUGH, NORTH CAROLINA <br />C. Steel Drill Screws: ASTM C 1002, unless otherwise indicated. <br />1. For fastening cementitious backer units, use screws of type and size recommended by <br />panel manufacturer. <br />D. Sound Attenuation Blankets: ASTM C 665, Type I (blankets without membrane facing) <br />produced by combining thermosetting resins with mineral fibers manufactured from glass, slag <br />wool, or rock wool. <br />1. Fire - Resistance -Rated Assemblies: Comply with mineral -fiber requirements of <br />assembly. <br />E. Acoustical Joint Sealant: Manufacturer's standard nonsag, paintable, nonstaining latex sealant <br />complying with ASTM C 834. Product effectively reduces airborne sound transmission through <br />perimeter joints and openings in building construction as demonstrated by testing representative <br />assemblies according to ASTM E 90. <br />1. Products: Subject to compliance with requirements, provide one of the following: <br />a. Accumetric LLC; BOSS 824 Acoustical Sound Sealant. <br />b. Grabber Construction Products; Acoustical Sealant GSC. <br />C. Pecora Corporation; AIS -919. <br />d. Specified Technologies, Inc.; Smoke N Sound Acoustical Sealant. <br />e. USG Corporation; SHEETROCK Acoustical Sealant. <br />2. Acoustical joint sealant shall have a VOC content of 250 g/L or less when calculated <br />according to 40 CFR 59, Subpart D (EPA Method 24). <br />PART 3 - EXECUTION <br />3.1 EXAMINATION <br />A. Examine areas and substrates including welded hollow -metal frames and framing, with Installer <br />present, for compliance with requirements and other conditions affecting performance. <br />B. Examine panels before installation. Reject panels that are wet, moisture damaged, and mold <br />damaged. <br />C. Proceed with installation only after unsatisfactory conditions have been corrected. <br />3.2 APPLYING AND FINISHING PANELS, GENERAL <br />A. Comply with ASTM C 840. <br />B. Install ceiling panels across framing to minimize the number of abutting end joints and to avoid <br />abutting end joints in central area of each ceiling. Stagger abutting end joints of adjacent panels <br />not less than one framing member. <br />GYPSUM BOARD 092900-4 <br />