Mechanical · A-KV2NV

Spring Configuration 0405-652D-01 Oshpd Spring Package

About this detail

An OSHPD-certified vibration isolation curb assembly manufactured by MicroMetl Corporation incorporates structural steel support members, a full perimeter wood nailer, and various roof attachment configurations for steel, wood, and concrete substrates. The isometric curb view displays key overall dimensions such as a base outside diameter of 127.750 inches by 85.500 inches, top outside dimensions of 126.250 inches by 84.000 inches, and interior dimensions of 121.750 inches by 79.500 inches, with designated supply and return openings. Additional details outline the structural steel support welding configuration, isolator welding, a Microhold profile measuring 4.500 inches wide by 5.132 inches high, and an isocurb detail showing a 2-inch by 4-inch by 1/4-inch structural steel support assembly mounted on a 12-gauge curb with a 12-gauge stiffener and full perimeter wood nailer. The microhold detail specifies attachment using seven number 10 by 1/2-inch tek screws and seven number 12 by 1-1/2-inch tek screws per hold. Roof anchorage details cover steel attachments utilizing A307 1/2-inch by 3-inch bolts, wood attachments using 1/4-inch by 3-inch Simpson SDS wood screws with washers, and concrete attachments utilizing 1/2-inch Simpson Titen HD anchors with a 3000 PSI minimum concrete strength and 6-inch minimum thickness.

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