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required. <br /> - Where existing flooring or tile is to be removed, provide proper <br /> condition of substrate for laying new tile or marble floor tiles as <br /> reomm. by quality standards & supplier. <br /> - Countertops - similar to floor, optimize mortar bed thickness. <br /> - Tub steps - Method #F144, glass mesh mortar unit base (1/2" Wonder- <br /> Board, USG, or equal) w/ thinset bond coat. Semco W.P. membrane on <br /> tub area & steps. Glue & nail glass mesh unit to plywood subfloor steps <br /> w/ 1/4" gaps between boards overlaid w/ fiberglass mesh as per manuf. <br /> recomm. Thinset w/ portland cement base & latex bonding agent by <br /> H.B. Fuller or equal. Provide alternate cost for using Method #F141, <br /> portland cement mortar bed. <br /> - Shower floor & walls - Method #B414, portland cement mortar bed <br /> over sloping W.P. membrane at floor, & walls as required for <br /> configuration. Carry W.P. membrane up side walls as required. <br /> Provide membrane, metal lath, mortar bed, reinforcing, etc. as <br /> required. <br /> - Walls at wet areas - Use 1/2" Durarock or sunilar cement type board as <br /> base for walls as per code; use w/ W223, W242, or W243 installation <br /> method. Use Durarock at exterior walls in wet areas as per code. <br /> - Provide caulk joints as shown & recomm. between systems & adjacent <br /> materials. <br /> - Wall at dry areas - Method #W243. <br /> 7. Clean all tile & marble as required after installation. See 2.1, item #3 for <br /> cleaner & sealer requi�ed for granite & marble protection - HMK Honed <br /> Marble & Granite Care Installation. <br /> 8. Seal all grout joints w/ penetrating sealer 7-10 days after installation. <br /> Section 0955 - Wood Flooring <br /> 1.1 c e - Install wood floors & all related components including sanding & <br /> finishing. <br /> 1.2 Standards - Install in strict compliance w/ recomm. standards established by <br /> NOFMA, National Oak Flooring Manuf. Assoc., or MFMA, Maple Flooring <br /> Manuf. Assoc., as per species selected. <br /> 1.3 Submittals - Submit samples of all hardwood components. <br /> 2.1 roducts <br /> 1. Parquet oak flooring to match existing, 4 3/4" square, supplied & installed <br /> by contractor. Refinish existing floor at room 109. <br /> 2. Sand all materials, apply stain/sealer & 2 coats of polyurethane or <br /> comparable S�vedish finish; provide sample finish prior to proceeding. <br /> 29 <br />