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INDIAN RIVER COUNTY JULY 25, 2014 <br />INTERGENERATIONAL RECREATION CENTER 100% CONSTRUCTION DOCUMENTS <br />a. Top Surface Color: As selected by Architect from manufacturer's full range of <br />industry colors. <br />C. Lockdown: Hidden. <br />2.4 FRAMES <br />A. Provide manufacturer's standard frames of size and style for grille type, for permanent recessed <br />installation in subfloor, complete with installation anchorages and accessories. Unless otherwise <br />indicated, fabricate frame of same material and finish as grilles. <br />2.5 SUPPORT SYSTEM <br />A. Level Bed Applications: Provide manufacturer's standard, vinyl cushion support system. <br />B. Drainage Pit Applications: Provide manufacturer's special deep -pit frame and support extrusion <br />system with intermediate support beams, sized and spaced as recommended by manufacturer for <br />indicated spans and equipped with vinyl support cushions. <br />2.6 DRAIN PANS <br />A. Provide manufacturer's standard[, 0.060 -inch- (L52 -mm-) thick], aluminum sheet drain pan <br />with NPS 2 (DN 50) drain outlet for each floor -grille unit. Coat bottom of pan with protective <br />coating recommended by manufacturer. <br />2.7 MATERIALS <br />A. Aluminum Sheet: ASTM B 209 (ASTM B 209M), alloy and temper recommended by <br />aluminum producer and finisher for type of use and finish indicated, and with not less than <br />strength and durability properties of Alloy 5005-H15. <br />B. Extruded Aluminum: ASTM B 221 (ASTM'13 22IM), Alloy 6061-T6 or Alloy 6063-T5, T6, or <br />T52 as standard with manufacturer. Coat surface of frame in contact with cementitious materials <br />with manufacturer's standard protective coating. <br />2.8 FABRICATION <br />Shop fabricate floor grilles to greatest extent possible in sizes as indicated. Unless otherwise <br />indicated, provide each grille as a single unit; do not exceed manufacturer's recommended <br />maximum sizes for units that are removed for maintenance and cleaning. Where joints in grilles <br />are necessary, space symmetrically and away from normal traffic lanes. <br />B. Fabricate frame members in single lengths or, where frame dimensions exceed maximum <br />available lengths, provide minimum number of pieces possible, with hairline joints equally <br />spaced and pieces spliced together by straight connecting pins. <br />ENTRANCE FLOOR GRILLES 124816 - 3 <br />