Maximum Roof Pitch For Shingles

Manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12.

Maximum roof pitch for shingles.

There are differing opinions as to the minimum slope for a roof but the generally accepted minimum is 3 12. Clay and concrete tile minimum roof slope roof pitch r905 3 2. 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. Low sloped roof shingle installation if 4 12 and above is normal and 2 12 is minimum what about properties with roofs in between the two such as a 3 12 pitched roof.

This means for every 12 horizontal units the roof must. This number corresponds to the number of inches of rise in a 12 foot run. Some people recommend not installing asphalt shingles on slopes below 5 12 but a skilled roofer may well be able to make this work. 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. 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. 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.

What is the minimum slope for an asphalt shingle roof. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.