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DSS Skills Development Center Smith Sinnett / 2020045 <br />Chapel Hill, North Carolina Orange County <br /> <br />RESILIENT TILE FLOORING 09 65 19 - 4 <br />B. Lay out floor tiles from center marks established with principal walls, discounting minor offsets, so tiles <br />at opposite edges of room are of equal width. Adjust as necessary to avoid using cut widths that equal <br />less than one-half tile at perimeter. <br />1. Lay tiles square with room axis. <br />C. Match floor tiles for color and pattern by selecting tiles from cartons in the same sequence as <br />manufactured and packaged, if so numbered. Discard broken, cracked, chipped, or deformed tiles. <br />1. Lay tiles with grain direction alternating in adjacent tiles (basket-weave pattern). <br />D. Scribe, cut, and fit floor tiles to butt neatly and tightly to vertical surfaces and permanent fixtures <br />including built-in furniture, cabinets, pipes, outlets, and door frames. <br />E. Extend floor tiles into toe spaces, door reveals, closets, and similar openings. Extend floor tiles to center <br />of door openings. <br />F. Maintain reference markers, holes, and openings that are in place or marked for future cutting by <br />repeating on floor tiles as marked on substrates. Use chalk or other nonpermanent, nonstaining marking <br />device. <br />G. Install floor tiles on covers for telephone and electrical ducts, building expansion-joint covers, and similar <br />items in finished floor areas. Maintain overall continuity of color and pattern between pieces of tile <br />installed on covers and adjoining tiles. Tightly adhere tile edges to substrates that abut covers and to <br />cover perimeters. <br />H. Adhere floor tiles to flooring substrates using a full spread of adhesive applied to substrate to produce a <br />completed installation without open cracks, voids, raising and puckering at joints, telegraphing of <br />adhesive spreader marks, and other surface imperfections. <br />I. Use full spread of adhesive applied to substrate in compliance with tile manufacturer's directions <br />including those for trowel notching, adhesive mixing, and adhesive open and working times. <br />J. Hand roll tiles where required by tile manufacturer. <br />3.4 CLEANING AND PROTECTION <br />A. Comply with manufacturer's written instructions for cleaning and protection of floor tile. <br />B. Perform the following operations immediately after completing floor tile installation: <br />1. Remove adhesive and other blemishes from exposed surfaces. <br />2. Sweep and vacuum surfaces thoroughly. <br />3. Damp-mop surfaces to remove marks and soil. <br />4. Do not wash floor until after time period recommended by resilient floor tile manufacturer. <br />C. Protect floor tile products from mars, marks, indentations, and other damage from construction operations <br />and placement of equipment and fixtures during remainder of construction period. <br />D. Floor Polish: Remove soil, visible adhesive, and surface blemishes from floor tile surfaces before <br />applying liquid floor polish. <br />1. Apply three coat(s). <br />2. Use commercially available, metal, cross-linked acrylic product acceptable to tile manufacturer. <br />3. Coordinate selection of floor polish with Owner's maintenance service. <br />4. The Contractor shall inspect tiles and remove and discard any and all tiles that telegraph <br />imperfections from subfloor. Correct deficiency in subfloor surface and replace with new tile. <br />E. Joint Sealant: Apply sealant to resilient terrazzo floor tile perimeter and around columns, at door frames, <br />and at other joints and penetrations. <br />F. Sealers and Finish Coats: Remove soil, visible adhesive, and surface blemishes from resilient terrazzo <br />floor tile surfaces before applying liquid cleaners, sealers, and finish products. <br />1. Sealer: Apply two base coats of liquid sealer. <br />2. Finish: Apply three coats of liquid floor finish. <br />G. Cover floor tiles with undyed, untreated building paper until Substantial Completion. <br />H. Do not move heavy and sharp objects directly over tiles. Place plywood or hardboard panels over tiles <br />and under objects while they are being moved. Slide or roll objects over panels without moving panels. <br />I. Clean tiles not more than 4 days prior to dates scheduled for inspections intended to establish date of <br />Final Acceptance in each area of Project. Clean tiles using method recommended by manufacturer. <br />1. Strip protective floor polish that was applied after completing installation prior to cleaning. <br />2. Reapply floor polish after cleaning. <br />DocuSign Envelope ID: ECCAC5A0-6CC8-4B37-8AD3-89D69F0AE1AE