Structural Roof Curb Detail

334 283 6578 fax 334 283 5447 galvanized steel construction ga.

Structural roof curb detail.

Curb installation should be a part of the roof deck not on top of insulation or roofing materials. Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation. Heights to be 8 above finished roof deck or as detailed. Internally insulated with 1 1 2 thick 3 lbs.

Determined by equipment weight full height welded corners factory installed 2x4 pressure treated. Heavy gauge galvanized steel actual thickness determined by unit weight and full height internal dividers add the strength necessary to support the unit without additional framing. The curb should be furnished with a wood nailer which provides a minimum of 3 5 of nailer surface mounted at the top of the curb to permit mechanical attachment of. Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer.

Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer. Typical roof curbs the curb should be structurally capable of supporting intended loads and designed such that drains power lines etc do not penetrate roof fl ashing. Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation. Box 781147 tallassee al 36078 ph.

Top of all roof curbs shall be level with pitch built into curb when deck slopes. Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer.