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Gateway Park Center PERKINS+WILL <br /> 810495.000 <br /> 12/06/18 <br /> <br /> <br />WOOD ATHLETIC FLOORING <br /> 09 64 66 - 4 <br /> <br /> <br />PART 3 - EXECUTION <br />3.1 EXAMINATION <br />A. Examine substrates, areas, and conditions, with Installer present, for compliance <br />with requirements for maximum moisture content, installation tolerances, and other <br />conditions affecting performance of the Work. <br />B. Proceed with installation only after unsatisfactory c onditions have been corrected. <br />C. Concrete Slabs: Verify that concrete substrates are dry and moisture-vapor <br />emissions are within acceptable levels according to manufacturer's written <br />instructions. <br />1. Moisture Testing: Perform tests so that each test area does not exceed 200 <br />sq. ft., and perform no fewer than three tests in each installation area and <br />with test areas evenly spaced in installation areas. <br />a. Anhydrous Calcium Chloride Test: ASTM F 1869. Proceed with <br />installation only after substrates have maximum moisture-vapor- <br />emission rate of 3 lb of water/1000 sq. ft. in 24 hours. <br />b. Relative Humidity Test: Using in situ probes, ASTM F 2170. Proceed with <br />installation only after substrates have a maximum 75 percent relative <br />humidity level measurement. <br />c. Perform additional moisture tests recommended by manufacturer. <br />Proceed with installation only after substrates pass testing. <br />3.2 PREPARATION <br />A. Concrete Slabs: <br />1. Grind high spots and fill low spots on concrete substrates to produce a <br />maximum 1/8-inch deviation in any direction when checked with a 10-foot <br />straight edge. <br />2. Use trowelable leveling and patching compounds, according to manufacturer's <br />written instructions, to fill cracks, holes, and depressions in substrates. <br />3. Remove coatings including curing compounds and other substances on <br />substrates that are incompatible with installation adhesives and that contain <br />soap, wax, oil, or silicone; use mechanical methods recommended by <br />manufacturer. Do not use solvents. <br />B. Broom and vacuum clean substrates to be covered immediately before product <br />installation. After cleaning, examine substrates for moisture, alkaline salts, <br />carbonation, or dust. Proceed with installation only after unsatisfactory conditions <br />have been corrected. <br />3.3 INSTALLATION <br />A. Comply with wood athletic flooring manufacturer's written instructions.