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CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12, 2020 <br />308 WEST FRANKLIN, CHAPEL HILL, NC <br />WOOD FLOORING 096400 - 6 <br />C. Broom or vacuum clean substrates to be covered immediately before product installation. After <br />cleaning, examine substrates for moisture, alkaline salts, carbonation, or dust. Proceed with <br />installation only after unsatisfactory conditions have been corrected. <br />3.3 INSTALLATION <br />A. Comply with flooring manufacturer's written installation instructions, but not less than <br />applicable recommendations in NWFA's "Installation Guidelines: Wood Flooring." <br />B. Provide expansion space at walls and other obstructions and terminations of flooring of not less <br />than 3/8 inch (19 mm). <br />C. Asphalt-Saturated Felt: Where strip or plank flooring is nailed to solid-wood subfloor, install <br />flooring over a layer of asphalt-saturated felt. <br />D. Vapor Retarder: <br />1. Wood Flooring Nailed to Sleepers over Concrete: Install flooring over a layer of <br />polyethylene sheet with edges overlapped over sleepers and turned up behind baseboards. <br />2. Wood Flooring Installed Directly on Concrete: Install a layer of polyethylene sheet <br />according to flooring manufacturer's written instructions. <br />E. Solid-Wood, Strip and Plank Flooring: Blind nail flooring to substrate. <br />1. For Chestnut Oak flooring of face width more than 3 inches (75 mm), do the following: <br />a. Install countersunk screws at each end of each piece in addition to blind nailing. <br />Cover screw heads with wood plugs glued flush with flooring. <br />b. Install no fewer than 2 countersunk nails at each end of each piece, spaced not <br />more than 16 inches (406 mm) along length of each piece, in addition to blind <br />nailing. Fill holes with matching wood filler. <br />F. Engineered-Wood Flooring: See installation instructions above. <br />G. Wood Trim: Nail baseboard to wall and nail shoe molding or other trim to baseboard; do not <br />nail to flooring. <br />3.4 FIELD FINISHING- FOR CHESTNUT OAK. <br />A. Machine-sand flooring to remove offsets, ridges, cups, and sanding-machine marks that would <br />be noticeable after finishing. Vacuum and tack with a clean cloth immediately before applying <br />finish. <br />1. Comply with applicable recommendations in NWFA's "Installation Guidelines: Wood <br />Flooring" for a tung oil finish. . <br />B. Apply floor-finish materials in number of coats recommended by finish manufacturer for <br />application indicated. <br />C. Cover wood flooring before finishing. <br />DocuSign Envelope ID: 775B89AF-3514-4D9E-B148-2FDE4EFF16C2