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INDIAN RIVER COUNTY JULY 25, 2014 <br />INTERGENERATIONAL RECREATION CENTER 100% CONSTRUCTION DOCUMENTS <br />product packaging instructions for installation. Flooring contractor must examine areas and <br />conditions under which resilient flooring and accessories are to be installed and must notify <br />General Contractor in writing of conditions detrimental to proper and timely completion of <br />work. Do not proceed with work until unsatisfactory conditions have been corrected in manner <br />acceptable to Owner and Architect. <br />3.02 EXAMINATION <br />A. Substrates: Examine and verify that all substrates, which have been previously installed under <br />other sections, are acceptable for product installation in accordance with manufacturer's <br />instructions. <br />B. Coordinate with Division 01 General Requirements for testing and allowances, Division 3 <br />Concrete Section and Division 7 Vapor Retarder Section. To ensure a good quality appearance <br />and good adhesion, the subfloor must be hard, smooth, clean, dry and free from defects. Slab <br />on -grade and below -grade subfloors must incorporate an approved vapor retarder (ASTM <br />E1745) properly installed (ASTM E1643) to ensure they are sufficiently dry and to reduce <br />ground moisture vapor transmission from entering the slab after construction. This can be <br />checked by using a suitable moisture test method. More detailed information is available on the <br />preparation of specific subfloor types. <br />C. Concrete Substrate Testing: Prior to flooring installation, test concrete substrates for internal <br />relative humidity (maximum 80% per ASTM F2170) or water vapor emission (maximum 5.O lb <br />per ASTM F1869) and alkalinity (7.0 - 10.0 pH per ASTM F710) harmful to resilient flooring <br />installation performance. Consult resilient flooring manufacturer for requirements pertaining to <br />proprietary resilient flooring products. Include testing costs in contract sum. Refer to Division <br />01 Quality Requirements. <br />3.03 PREPARATION <br />A. Surface Preparation: <br />1. Concrete subfloors shall be constructed in accordance with ACI 302.1 and ACI SP -15, <br />utilizing a water -to -cement ratio of 0.45 or less containing no admixtures or surface <br />treatments that are adverse to the installation of resilient flooring. <br />2. Concrete subfloors must be finished and cured without additives or surface treatments <br />that will adversely affect the flooring materials according to ACI and ASTM F710 with a <br />minimum compressive strength of 3500 psi (24,115 kPa). <br />3. Wood subfloors and underlayment panels must be acclimated to within 3% and have an <br />equilibrium moisture content of 14% or less. <br />4. Floors must be clean, dry and smooth. <br />5. Incompatible Compounds: Remove compounds and other substances harmful or <br />incompatible with installation adhesives and flooring products. This includes any surface <br />materials, such as paint, wax, grease, oil, adhesive residues, etc. Chemical adhesive <br />removers must be completely removed. Floors must be free of any sealers, curing, <br />hardening or parting compounds that would adversely affect the adhesive used with the <br />flooring. Refer to ACI and ASTM F710. <br />RESILIENT TILE FLOORING 096519-8 <br />