Shingles of all types need to have a slope to function properly.
Minimum roof pitch colorado.
You could also opt for a pvc flat roofing membrane.
However you can only use this pitch with built up roofing or specialized synthetic roofing.
4 responses to 28 minimum roof pitch with metal roofing.
Would you as a manufacturer of this flat metal roofing material condone a 1 12 slope for this roof.
That works out to about nine degrees if that works better for you.
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.
March 27 2018 at 10 49 am.
Rafters are built or framed on an angle to achieve the designed pitch of a roof.
What is the minimum pitch slope of an asphalt shingle roof.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
Building codes require a minimum slope.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
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.
Thanks walt in colorado.
The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.
We require a 2 12 pitch for our standing seam products.
The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.