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Round 1 Bowling and Amusement 12/09/2024 Paradigm Design <br />Main Place Mall Expansion Grand Rapids, MI <br />Santa Ana, California <br />Project #2309147GR <br />WALL COVERINGS 09 7200 - 3 <br />ed. 2023-10-20 <br />PART 3 - EXECUTION <br />3.1 EXAMINATION <br />A.Examine substrates and conditions, with Installer present, for compliance with requirements for levelness, <br />wall plumbness, maximum moisture content, and other conditions affecting performance of the Work. <br />B.Proceed with installation only after unsatisfactory conditions have been corrected. <br />3.2 PREPARATION <br />A.Comply with manufacturer's written instructions for surface preparation. <br />B.Clean substrates of substances that could impair bond of wall covering, including dirt, oil, grease, mold, <br />mildew, and incompatible primers. <br />C.Prepare substrates to achieve a smooth, dry, clean, structurally sound surface free of flaking, unsound <br />coatings, cracks, and defects. <br />1.Moisture Content: Maximum of 5 percent on new plaster, concrete, and concrete masonry units <br />when tested with an electronic moisture meter. <br />2.Plaster: Allow new plaster to cure. Neutralize areas of high alkalinity. Prime with primer <br />recommended in writing by primer/sealer manufacturer and wall-covering manufacturer. <br />3.Metals: If not factory primed, clean and apply primer recommended in writing by primer/sealer <br />manufacturer and wall-covering manufacturer. <br />4.Gypsum Board: Prime with primer as recommended in writing by primer/sealer manufacturer and <br />wall-covering manufacturer. <br />5.Painted Surfaces: Treat areas susceptible to pigment bleeding. <br />D.Check painted surfaces for pigment bleeding. Sand gloss, semigloss, and eggshell finish with fine <br />sandpaper. <br />E.Remove hardware and hardware accessories, electrical plates and covers, light fixture trims, and similar <br />items. <br />F.Acclimatize wall-covering materials by removing them from packaging in the installation areas not less <br />than 24 hours before installation. <br />3.3 WALL-COVERING INSTALLATION <br />A.Comply with wall-covering manufacturers' written installation instructions applicable to products and <br />applications indicated. <br />B.Cut wall-covering strips in roll number sequence. Change the roll numbers at partition breaks and <br />corners.