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Orange County Facility Renovations <br />Hillsborough, NC <br /> <br />Smith Sinnett GYPSUM BOARD <br />2020046/2020047/2020048/2020049/2020055 09 29 00- 2 <br />2. Thickness: 1/2 inch. <br />3. Long Edges: Tapered. <br />C. Mold-Resistant Gypsum Board: ASTM C1396/C1396M. With moisture- and mold-resistant core and <br />paper surfaces. <br />1. Manufacturers: Subject to compliance with requirements, provide products by one of the <br />following: <br />a. CertainTeed Corporation. <br />b. Continental Building Products, LLC. <br />c. Georgia-Pacific Gypsum LLC. <br />d. National Gypsum Company. <br />e. USG Corporation. <br />2. Core: 5/8 inch, Type X. <br />3. Long Edges: Tapered. <br />4. Mold Resistance: ASTM D3273, score of 10 as rated according to ASTM D3274. <br />2.4 TRIM ACCESSORIES <br />A. Interior Trim: ASTM C1047. <br />1. Material: Galvanized or aluminum-coated steel sheet or rolled zinc . <br />2. Shapes: <br />a. Cornerbead. <br />b. LC-Bead: J-shaped; exposed long flange receives joint compound. <br />c. L-Bead: L-shaped; exposed long flange receives joint compound. <br />d. U-Bead: J-shaped; exposed short flange does not receive joint compound. <br />e. Expansion (control) joint. <br />2.5 JOINT TREATMENT MATERIALS <br />A. General: Comply with ASTM C475/C475M. <br />B. Joint Tape: <br />1. Interior Gypsum Board: Paper. <br />C. Joint Compound for Interior Gypsum Board: For each coat, use formulation that is compatible with other <br />compounds applied on previous or for successive coats. <br />1. Prefilling: At open joints, rounded or beveled panel edges, and damaged surface areas, use setting- <br />type taping compound. <br />2. Embedding and First Coat: For embedding tape and first coat on joints, fasteners, and trim flanges, <br />use drying-type, all-purpose compound. <br />3. Fill Coat: For second coat, use drying-type, all-purpose compound. <br />4. Finish Coat: For third coat, use drying-type, all-purpose compound. <br />2.6 AUXILIARY MATERIALS <br />A. Provide auxiliary materials that comply with referenced installation standards and manufacturer's written <br />instructions. <br />B. Steel Drill Screws: ASTM C1002 unless otherwise indicated. <br />1. Use screws complying with ASTM C954 for fastening panels to steel members from 0.033 to <br />0.112 inch thick. <br />C. Sound-Attenuation Blankets: ASTM C665, Type I (blankets without membrane facing) produced by <br />combining thermosetting resins with mineral fibers manufactured from glass, slag wool, or rock wool. <br />1. Fire-Resistance-Rated Assemblies: Comply with mineral-fiber requirements of assembly. <br />DocuSign Envelope ID: 09980A3B-0691-41B4-854D-3865F2287392