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.
Minimum roof pitch colorado.
Shingles of all types need to have a slope to function properly.
You could also opt for a pvc flat roofing membrane.
In some areas of the u s.
However you can only use this pitch with built up roofing or specialized synthetic roofing.
March 27 2018 at 10 49 am.
That works out to about nine degrees if that works better for you.
The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.
Rafters are built or framed on an angle to achieve the designed pitch of a roof.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
What is the minimum pitch slope of an asphalt shingle roof.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
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.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.
We require a 2 12 pitch for our standing seam products.
Thanks walt in colorado.
Building codes require a minimum slope.