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RESILIENT FLOORING AND ACCESSORIES <br /> <br />09 65 00 - 2 <br />Orange County Architectural Renovations Smith Si nnett / 2023036 <br />Hillsborough, NC Orange County Asset Man agement Services <br /> <br />4. Nora Systems <br />5. Tarkett, Inc. <br /> <br />B. Tile Standard: ASTM F1700. <br />1. Class: Class II, Type B <br />2. Wear Layer: 20 mil <br />3. Size: as Selected by Architect <br />4. Color and Patterns: As selected by Architect. <br /> <br />2.3 INSTALLATION MATERIALS <br /> <br />A. Trowelable Leveling and Patching Compounds: Latex-modified, portland-cement-based or blended <br />hydraulic-cement-based formulation provided or approved by resilient -product manufacturer for <br />applications indicated. <br /> <br />B. Adhesives: Water-resistant type recommended by resilient-product manufacturer for resilient products <br />and substrate conditions indicated. <br /> <br />PART 3 - EXECUTION <br /> <br />3.1 PREPARATION <br /> <br />A. Prepare substrates according to manufacturer's written instructions to ensure adhesion of resilient <br />products. <br /> <br />B. Concrete Substrates: Prepare horizontal surfaces according to ASTM F710. <br />1. Verify that substrates are dry and free of curing compounds, sealers, and hardeners. <br />2. Remove substrate coatings and other substances that are incompatible with adhesives and that <br />contain soap, wax, oil, or silicone, using mechanical methods recommended by manufacturer. Do <br />not use solvents. <br />3. Alkalinity and Adhesion Testing: Perform tests recommended by manufacturer. Proceed with <br />installation only after substrate alkalinity falls within range on pH scale recommended by <br />manufacturer in writing, but not less than 5 or more than 9 pH. <br />4. Moisture Testing: Perform tests so that each test area does not exceed 1000 sq. ft., and perform no <br />fewer than three tests in each installation area and with test areas evenly spaced in installation <br />areas. <br />a. Anhydrous Calcium Chloride Test: ASTM F1869. Proceed with installation only after <br />substrates have maximum moisture-vapor-emission rate of 3 lb of water/1000 sq. ft. in 24 <br />hours. <br />b. Relative Humidity Test: Using in-situ probes, ASTM F2170. Proceed with installation only <br />after substrates have a maximum 75 percent relative humidity level measurement. <br /> <br />C. Fill cracks, holes, and depressions in substrates with trowelable leveling and patching compound; remove <br />bumps and ridges to produce a uniform and smooth substrate. <br /> <br />D. Do not install resilient products until materials are the same temperature as space where they are to be <br />installed. <br /> <br />E. Immediately before installation, sweep and vacuum clean substrates to be covered by resilient products. <br /> <br />3.2 RESILIENT BASE INSTALLATION <br /> <br />A. Comply with manufacturer's written instructions for installing resilient base. <br /> <br />B. Apply resilient base to walls, columns, pilasters, casework and cabinets in toe spaces, and other <br />permanent fixtures in rooms and areas where base is required. <br />Docusign Envelope ID: 52FACC74-DA96-491B-B0B8-04AC3961737D