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Orange County Health Department Improvements Smith Sinnett / 2024008 <br />Hillsborough, NC Orange County Asset Management Services <br /> <br />RESILIENT SHEET FLOORING 09 65 16 - 4 <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 substrates pass testing. <br />4. Moisture Testing: Perform tests recommended by manufacturer[ and as follows]. Proceed with <br />installation only after substrates pass testing. <br />a. Perform anhydrous calcium chloride test, ASTM F 1869. Proceed with installation only <br />after substrates have maximum moisture-vapor-emission rate of [3 lb of water/1000 sq. ft.] <br />in 24 hours. <br />b. Perform relative humidity test using in situ probes, ASTM F 2170. Proceed with <br />installation only after substrates have a maximum [75 percent] relative humidity level <br />measurement. <br />C. Fill cracks, holes, and depressions in substrates with trowelable leveling and patching compound and <br />remove bumps and ridges to produce a uniform and smooth substrate. <br />D. Do not install floor coverings until they are same temperature as space where they are to be installed. <br />1. Move floor coverings and installation materials into spaces where they will be installed at least 48 <br />hours in advance of installation. <br />E. Sweep and vacuum clean substrates to be covered by floor coverings immediately before installation. <br />3.3 FLOOR COVERING INSTALLATION <br />A. Comply with manufacturer's written instructions for installing floor coverings. <br />B. Unroll floor coverings and allow them to stabilize before cutting and fitting. <br />C. Lay out floor coverings as follows: <br />1. Maintain uniformity of floor covering direction. <br />2. Minimize number of seams; place seams in inconspicuous and low-traffic areas, at least 6 inches <br />away from parallel joints in floor covering substrates. <br />3. Match edges of floor coverings for color shading at seams. <br />4. Avoid cross seams. <br />D. Scribe and cut floor coverings to butt neatly and tightly to vertical surfaces, permanent fixtures, and built- <br />in furniture including cabinets, pipes, outlets, and door frames. <br />E. Extend floor coverings into toe spaces, door reveals, closets, and similar openings. <br />F. Maintain reference markers, holes, or openings that are in place or marked for future cutting by repeating <br />on floor coverings as marked on substrates. Use chalk or other nonpermanent marking device. <br />G. Install floor coverings on covers for telephone and electrical ducts and similar items in installation areas. <br />Maintain overall continuity of color and pattern between pieces of floor coverings installed on covers and <br />adjoining floor covering. Tightly adhere floor covering edges to substrates that abut covers and to cover <br />perimeters. <br />Docusign Envelope ID: 04F3EBB0-678B-4F1A-A4C9-8379527DEA61