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DocuSign Envelope ID:D561B1AE-DF34-4907-AD06-AOEB37BBE427 <br /> CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12,2020 <br /> 308 WEST FRANKLIN,CHAPEL HILL,NC <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 /> WOOD FLOORING 096400 - 6 <br />