Minimum Roof Pitch For Shingles

That works out to about nine degrees if that works better for you.

Minimum roof pitch for shingles.

The minimum requirement is 2 12. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12. The recommended minimum roof pitch for shingles is 2 12 or simply two units of vertical rise to every twelve units of horizontal span.

However it is regrettable that many installers usually ignore this requirement due to the desire for a quick installation process. Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run.

Tuesday september 11 2018. 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. Wood shakes require a minimum roof pitch of 3 12 or greater.

The 2 12 number is rise over run or two units of vertical for every 12 units horizontal. What is the minimum slope for an asphalt shingle roof. Shingles of all types need to have a slope to function properly. Wood shingles require a minimum roof pitch of 3 12 or greater.