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.
Min roof pitch ny.
With regards to the pitch the building standard code bs 5534 recommends a minimum pitch of 20 0 for slate roofs.
Minimum roof pitch for shingles.
The following tableprovides the minimum required allowable roof slope for each type of roofing material mentioned in the code.
Shingles of all types need to have a slope to function properly.
You could also opt for a pvc flat roofing membrane.
The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.
If a roof slope rises say 4 inches when measured 12 inches along the bottom of a horizontal roof truss the roof slope is said to be 4 12.
I e 4 inches of rise per 12 inches one foot of run.
Nonclassified roof coverings shall be permitted on buildings of group r 3 and group u occupancies where there is a minimum fire separation distance of 6 feet measured from the leading edge of the roof.
But since there is still a wide variety of slate roofing systems there are occasions when the minimum pitch can go down to as low as 15 0 depending on the uniqueness of the roof.
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.
What is the minimum pitch slope of an asphalt shingle roof.
The minimum requirement is 2 12.