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Orange County Health Department Improvements Smith Sinnett / 2024008 <br />Hillsborough, NC Orange County Asset Management Services <br />GYPSUM BOARD 09 29 00 - 4 <br />B. Regular Type: <br />1. Thickness: 5/8 inch. <br />2. Long Edges: Tapered. <br />C. Type C: <br />1. Thickness: As required by fire-resistance-rated assembly indicated on Drawings. <br />2. Long Edges: Tapered <br />D. Type X: <br />1. Thickness: 5/8 inch. <br />2. Long Edges: Tapered. <br />3. Core: 5/8 inch, <br />4. Long Edges: Tapered <br />2.4 CEMENT BOARD PANELS <br />A. Cementitious Backer Units: ANSI A118.9. <br />1. Available Products: Subject to compliance with requirements, products that may be incorporated <br />into the Work include, but are not limited to, the following: <br />2. Products: Subject to compliance with requirements, provide one of the following: <br />a. Custom Building Products; Wonderboard. <br />b. FinPan, Inc.; Util-A-Crete Concrete Backer Board. <br />c. USG Corporation; DUROCK Cement Board. <br />3. Thickness: As indicated on Drawings. <br />2.5 TRIM ACCESSORIES <br />A. Interior Trim: ASTM C 1047. <br />1. Material: Galvanized or aluminum-coated steel sheet or rolled zinc. <br />2. Shapes: <br />a. Cornerbead on outside corners. <br />b. L-Bead: L-shaped; exposed long flange receives joint compound. Use L-bead unless <br />otherwise indicated. Provide at all locations where gypsum board abuts dissimilar <br />materials. <br />c. Expansion (control) joint. <br />B. Exterior Trim: ASTM C 1047. <br />1. Material: Hot-dip galvanized steel sheet, plastic, or rolled zinc. <br />2. Shapes: <br />a. Cornerbead. <br />2.6 JOINT TREATMENT MATERIALS <br />A. General: Comply with ASTM C 475/C 475M. <br />B. Joint Tape: <br />1. Interior Gypsum Wallboard: Paper. <br />2. Glass-Mat Gypsum Sheathing Board: 10-by-10 glass mesh. <br />3. Tile Backing Panels: As recommended by panel manufacturer. <br />C. Joint Compound for Interior Gypsum Wallboard (EXCEPT SHOWER ROOMS): For each coat use <br />formulation that is compatible with other compounds applied on previous or for successive coats. <br />1. Prefilling: At open joints, rounded or beveled panel edges, and damaged surface areas, use <br />setting-type taping compound. <br />2. Embedding and First Coat: For embedding tape and first coat on joints, fasteners, and trim <br />flanges, use drying-type, all-purpose compound. <br />Docusign Envelope ID: 2D852F9B-A7CF-462A-9536-444A53AA848A