Roof Curb Installation

A good penetration requires.

Roof curb installation.

Curb installation should be a part of the roof deck not on top of insulation or roofing materials. Contractors should not be asked to supply or install roof. Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer. And installed by an experienced erector.

A canted curb for example should be used for a built up or modified bitumen system roofing system. 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. Placing the curb on and attaching it to the ribs also allows better transitioning from under the roofing on the upslope end to cover the roof on the downslope end. Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation.

Turer to the general contractor or building manufacturer.