Roof Curb Installation Detail

A canted curb for example should be used for a built up or modified bitumen system roofing system.

Roof curb installation detail.

Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer. Do not overlap counter flashing over the top of the roof curb. Install roof curbs rib to rib. A good penetration requires.

The curb can also be mounted on a roof deck. And installed by an experienced erector. Use tack welding or other suitable fastening method to secure the roof curb in place. Curbs for roo fi ng systems.

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. Trane recommends that the roof curb be placed directly on the roof support members and welded into place. Turer to the general contractor or building manufacturer. Curbs should be sloped to avert water ponding.

In this case additional. Roof curbs should be supplied by the hvac manufac. 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. Contractors should not be asked to supply or install roof.

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.