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.
Structural roof curb detail.
We try to help our clients in anyway possible.
Curbs should be sloped to avert water ponding.
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.
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.
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.
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.
A structural engineer predetermines the seismic requirements of a building.
Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer.
Section 07721 prefabricated hvac structural roof curbs part 1 general 1 01 summary a.
Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer.
Heights to be 8 above finished roof deck or as detailed.
Stamps are available for all 50 states if needed.
Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation.
Internally insulated with 1 1 2 thick 3 lbs.
The prefabricated hvac roof curbs must be installed in accordance with instructions and as detailed on drawings.
Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation.
Curbs should be sloped to avert water ponding.
Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer.
In many cases florida building code fbc compliant roof curbs also feature seismic protection as well.
Structural curbs are individually designed to span the existing bar joist at the base transitioning to match specific unit dimensions at the top.
Below are links to all our products downloadable roof details and drawings.
Free cad detail download of a prefabricated roof curb to be used in your architectural section cad drawings.
Seismic calculated curbs are available as reinforced metal curbs or vibration isolation curbs.
