Maximum Roof Pitch For Shingles

Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above.

Maximum roof pitch for shingles.

Some people recommend not installing asphalt shingles on slopes below 5 12 but a skilled roofer may well be able to make this work. 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. So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run.

Clay and concrete tile minimum roof slope roof pitch r905 3 2. Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run. This number corresponds to the number of inches of rise in a 12 foot run. Also if asphalt shingles are installed on a roof slope of 2 12 to 4 12 it shall be provided with a double underlayment application.

Asphalt shingles continue to be the most widely installed roof covering option in north america. Clay and concrete roof tiles can only be installed on roof slopes of 2 1 2 12 or greater. It is important for shingle roofs to function properly and one method of ensuring that this is achieved is to observe the pitch requirements for the shingles. Manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12.

This means for every 12 horizontal units the roof must. What is the minimum slope for an asphalt shingle roof.