Metal roof shingles require a minimum roof pitch of 3 12 or greater.
Minimum roof pitch for shingles.
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.
So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run.
Tuesday september 11 2018.
Wood shakes require a minimum roof pitch of 3 12 or greater.
The recommended minimum roof pitch for shingles is 2 12 or simply two units of vertical rise to every twelve units of horizontal span.
The minimum requirement is 2 12.
Slate and slate type shingles require a minimum roof pitch of 4 12 or greater.
Shingles of all types need to have a slope to function properly.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
However it is regrettable that many installers usually ignore this requirement due to the desire for a quick installation process.
Manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12.
Wood shingles require a minimum roof pitch of 3 12 or greater.
What is the minimum slope for an asphalt shingle roof.