How To Level A Roof Curb

Install 2 inch thick boards or rigid insulation around the curb.

How to level a roof curb.

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. But the top of the curb slopes with the roof slope. 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. I ve attached what i ve got.

See two downloadable forms on our website welded rtu curbs and calculating the pitch of a roof for a visual representation of this data in principle it s straightforward enough. Instead coordinating the curb size with the rib spacing to provide a rib to rib curb eliminates fasteners down both sides of the curb in the pan of the roof panels. Remove any twist within the cu rb due to roof supports and square the curb. Here at curbco we re happy to create curb for sloped roofs as long as we have the data we need.

Bring field supplied roofing felt up to the top of the curb nailing strips. The parameters are 4 w x 63 l with a 1 2 12 slope. I want it to be level on both ends. Install cant strips around the curb.

Nail felt into place. A canted curb for example should be used for a built up or modified bitumen system roofing system. Instead measure the highest point of the roof curb that is roofed into the building or right below the unit base rail. I have a curb going around an opening in the roof and everything works.