Minimum Roof Pitch Colorado

The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.

Minimum roof pitch colorado.

What is the minimum pitch slope of an asphalt shingle roof. So you would need to pick the right option as most regular standing seam metal roofs will require a roof pitch of 2 12 or even 3 12 at a minimum. Asphalt shingles continue to be the most widely installed roof covering option in north america. Building codes require a minimum slope.

The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. You could also opt for a pvc flat roofing membrane. Rafters are built or framed on an angle to achieve the designed pitch of a roof. For example areas hit by extraordinary lake effect snows like buffalo new york and montreal canada specify a 6 12 a rather steep pitch of approximately 26 6 degrees.

There are some standing seam metal roofing options available from atas and other manufacturers that can be installed on a roof with pitch of 1 12. 4 responses to 28 minimum roof pitch with metal roofing. We require a 2 12 pitch for our standing seam products. The minimum requirement is 2 12.

Shingles of all types need to have a slope to function properly. Thanks walt in colorado. March 27 2018 at 10 49 am. In some areas of the u s.

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. That works out to about nine degrees if that works better for you.