Minimum Roof Pitch For Fiberglass Shingles

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

Minimum roof pitch for fiberglass shingles.

Let us recap on the minimum roof pitch required for each type of roofing material. 2 5 12 to 19 12 pitches clay or cement tiles can be used on a wide range of roof pitches. Metal roof shingles require a minimum roof pitch of 3 12 or greater. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.

Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. Installation on roof slopes below a 2 in 12 pitch is not recommended at all. Experience the total owens corning roofing system and high quality roofing shingles. That works out to about nine degrees if that works better for you.

The 2 12 number is rise over run or two units of vertical for every 12 units horizontal. Corrugated metal roofing has the same minimum pitch. We can even help you find a professional to install it. With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels.

The minimum requirement is 2 12. Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle. Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles. To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope.

The minimum pitch for shingles is 1 6 which is equivalent to 4 inches rise to 24 inches run. You could also opt for a pvc flat roofing membrane. For pitches of 2 5 12 up to 4 12 the roof requires double underlayment. The pitch is measured in inches of vertical rise per foot of horizontal run and the 5v crimp profile shown above requires a minimum slope of three in twelve or 3 12 3 inches vertically per 12 inches horizontally.

Let owens corning help you determine when it is time for a new roof and then let us help you choose the shingles for your roof that are right for you. Asphalt shingles continue to be the most widely installed roof covering option in north america. The minimum pitch for a standing seam metal roof is 1 4 or 3 inches rise to 12 inches run. 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.

The minimum roof slope for metal roofs is dependent upon the roof profile. Shingles of all types need to have a slope to function properly. Minimum pitch for metal roof.