Orange County NC Website
Browse       Search
CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12, 2020 <br />308 WEST FRANKLIN, CHAPEL HILL, NC <br />WOOD FLOORING 096400 - 5 <br />2. Base Shoe Molding: 1/2 by 1/2 inch (13 by 19 mm). <br />3. Threshold: Flush. <br />PART 3 - EXECUTION <br />3.1 EXAMINATION <br />A. Examine substrates, areas and conditions, with Installer present, for compliance with <br />requirements for maximum moisture content, installation tolerances, and other conditions <br />affecting performance of wood flooring. <br />1. Verify that substrates comply with tolerances and other requirements specified in other <br />Sections. <br />2. For adhesively applied wood flooring, verify that substrates are free of cracks, ridges, <br />depressions, scale, and foreign deposits that might interfere with adhesion of resilient <br />products. <br />3. Proceed with installation only after unsatisfactory conditions have been corrected. <br />B. Substrate Moisture Testing, General: Perform tests recommended by manufacturer or, if none, <br />comply with applicable recommendations in NWFA's "Installation Guidelines: Wood <br />Flooring." <br />1. Proceed with installation only after substrates pass testing. <br />C. Concrete Moisture Testing: Perform anhydrous calcium chloride test per ASTM F 1869, as <br />follows: <br />1. Perform tests so that each test area does not exceed 200 sq. ft. (18.6 sq. m) and perform <br />not less than 2 tests in each installation area with test areas evenly spaced in installation <br />area. <br />2. Proceed with installation only after substrates have maximum moisture-vapor-emission <br />rate 3.0 lb of water/1000 sq. ft. (2.04 kg of water/92.9 sq. m) in 24 hours. <br />3. Perform alkalinity and adhesion tests recommended in writing by manufacturer or, if <br />none, according to NWFA's "Installation Guidelines: Wood Flooring. Proceed with <br />installation only after substrates pass testing. <br />3.2 PREPARATION <br />A. Grind high spots and fill low spots on concrete substrates to produce a maximum 1/8-inch (3- <br />mm) deviation in any direction when checked with a 10-foot (3-m) straight edge. <br />1. Use trowelable leveling and patching compounds, according to manufacturer's written <br />instructions, to fill cracks, holes, and depressions in substrates. <br />B. Remove coatings, including curing compounds, and other substances on substrates that are <br />incompatible with installation adhesives and that contain soap, wax, oil, or silicone, using <br />mechanical methods recommended by manufacturer. Do not use solvents. <br />DocuSign Envelope ID: 775B89AF-3514-4D9E-B148-2FDE4EFF16C2