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THE CITY OF SUNNY ISLES BEACH <br />PROJECT NO. 21-1011 <br />BUILDING DEPARTMENT RELOCATION TO ANNEX <br /> <br />Project No. 21-1011 November 2024 055000 Miscellaneous Metals-18 <br /> <br /> <br /> <br />7. Thresholds: Plain-stepped- (stop-) type units, 5 inches (125 mm) wide by 1/2-inch <br />(12 mm) high, with 1/2-inch (12-mm) step. <br /> <br />B. Extruded Units: [Aluminum] [Bronze], with abrasive filler consisting of aluminum oxide, <br />silicon carbide, or a combination of both, in an epoxy-resin binder. Fabricate units in <br />lengths necessary to accurately fit openings or conditions. <br /> <br />1. <Double clicks here to find, evaluate, and insert list of manufacturers and <br />products.> <br /> <br />2. Provide ribbed units, with abrasive filler strips projecting 1/16 inch (1.5 mm) above <br />aluminum extrusion. <br /> <br />3. Provide solid-abrasive-type units without ribs. <br /> <br /> <br />4. Nosings: Square-back units, [1-7/8 inches (48 mm)] [3 inches (75 mm)] [4 inches <br />(100 mm)] wide, for casting into concrete steps. <br /> <br />5. Nosings: Beveled-back units, [3 inches (75 mm)] [4 inches (100 mm)] wide with <br />1-3/8-inch (35-mm) lip, for surface mounting on existing stairs. <br /> <br />6. Nosings: Two-piece units, 3 inches (75 mm) wide, with subchannel for casting into <br />concrete steps. <br /> <br />7. Treads: [Square] [Beveled]-back units, full depth of tread with 1-3/8-inch (35- <br />mm) lip, for application over existing stairs. <br /> <br />C. Provide anchors for embedding units in concrete, either integral or applied to units, as <br />standard with manufacturer. <br /> <br />D. Drill for mechanical anchors and countersink. Locate holes not more than 4 inches (100 <br />mm) from ends and not more than 12 inches (300 mm) o.c., evenly spaced between ends, <br />unless otherwise indicated. Provide closer spacing if recommended by manufacturer. <br /> <br />1. Provide two rows of holes for units more than 5 inches (125 mm) wide, with two <br />holes aligned at ends and intermediate holes staggered. <br /> <br />E. Apply bituminous paint to concealed surfaces of cast-metal units. <br /> <br />F. Apply clear lacquer to concealed surfaces of extruded units. <br /> <br />2.21 CAST-IRON WHEEL GUARDS <br /> <br />A. Provide wheel guards made from cast-iron, 3/4-inch- (19-mm-) thick, hollow-core <br />construction, of size and shape indicated. Provide holes for countersunk anchor bolts and <br />grouting. <br /> <br />B. Prime cast-iron wheel guards with [zinc-rich primer.] [primer specified in Section 099600 <br />"High-Performance Coatings."] <br />