Structural Roof Curb Detail

Structural curbs are individually designed to span the existing bar joist at the base transitioning to match specific unit dimensions at the top.

Structural roof curb detail.

Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer. Curbs should be sloped to avert water ponding. In many cases florida building code fbc compliant roof curbs also feature seismic protection as well. Stamps are available for all 50 states if needed.

Curbs should be sloped to avert water ponding. Roof curbs also protect the occupants inside the building by preventing the rooftop packaged unit from blowing off the curb during a wind event and potentially falling through the roof structure. If you have any questions about a product please don t hesitate to call us we will help you get your roofing job done right the first time. Seismic calculated curbs are available as reinforced metal curbs or vibration isolation curbs.

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. Section 07721 prefabricated hvac structural roof curbs part 1 general 1 01 summary a. Free cad detail download of a prefabricated roof curb to be used in your architectural section cad drawings. 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. Below are links to all our products downloadable roof details and drawings. Internally insulated with 1 1 2 thick 3 lbs. Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation.

The prefabricated hvac roof curbs must be installed in accordance with instructions and as detailed on drawings. Top of all roof curbs shall be level with pitch built into curb when deck slopes. Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation. A structural engineer predetermines the seismic requirements of a building.

This is dictated by the international building codes ibc and california building codes cbc based upon requirements set by the american society of civil engineers asce. We try to help our clients in anyway possible. Heights to be 8 above finished roof deck or as detailed.