Roof Curb Installation Detail

Turer to the general contractor or building manufacturer.

Roof curb installation detail.

Use tack welding or other suitable fastening method to secure the roof curb in place. Do not overlap counter flashing over the top of the roof curb. In this case additional. First the basic design of the curb should take into account the roofing components so that it can be properly flashed into the roof system.

If the curb is mounted on the roof deck additional support is necessa ry directly below the curb flanges to minimize vibration. Installing curbs that rest in the flat lower panel area of metal roofing invites water tightness problems since the curb now has to be installed and sealed in the most vulnerable area the surface where rainwater flows. Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer. Curbs for roo fi ng systems.

Trane recommends that the roof curb be placed directly on the roof support members and welded into place. Contractors should not be asked to supply or install roof. Install roof curbs rib to rib. Roof curbs should be supplied by the hvac manufac.

Curbs should be sloped to avert water ponding. And installed by an experienced erector. Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation. As a general rule the curb should be placed directly on the roof support members.

If the roof curb will be mounted on a new building it can be assembled at any convenient location and installed as soon as the roof support members are in place.