Minimum Roof Slope For Shingles

Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run.

Minimum roof slope for shingles.

This number corresponds to the number of inches of rise in a 12 foot run. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Finding the right products for your low slope roof. 18 43 asphalt shingles with special underlayment requirements 2 in 12.

If you have a low slope roof but would love to have a shingled look rather than other solutions like rolled sheet roofing you are in. Asphalt shingles continue to be the most widely installed roof covering option in north america. The minimum pitch for shingles is 1 6 which is equivalent to 4 inches rise to 24 inches run. What is the minimum pitch slope of an asphalt shingle roof.

Residential low slope roofing can generally be divided up into two broad categories. The minimum requirement is 2 12. Some will argue that shingles shouldn t be used for low pitch roofs at all. The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.

Asphalt shingles minimum roof slope roof pitch r905 2 2. However those naysayers would be wrong. Shingles of all types need to have a slope to function properly. Some people recommend not installing asphalt shingles on slopes below 5 12 but a skilled roofer may well be able to make this work.

There are differing opinions as to the minimum slope for a roof but the generally accepted minimum is 3 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. In 12 0 25 in 12 1 19 built up roof coal tar pitch. Roofing material or system.

Minimum required slope x in 12 minimum required slope degrees asphalt shingles. Larger flat roofed applications low slope such as residential condominium complexes row homes and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically. Low slope roofing shingles. Low slope roofs present a challenge where water is concerned.

Minimum roof pitch for shingles 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. Asphalt shingles can only be installed on roof slopes of 2 12 or greater. Manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12. So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run.

Minimum required roof slope for roofing materials. That works out to about nine degrees if that works better for you. The minimum pitch for a standing seam metal roof is 1 4 or 3 inches rise to 12 inches run.