Minimum Slope Of Roof For Shingles

Shingles of all types need to have a slope to function properly.

Minimum slope of roof for shingles.

If your home features a low slope roof you can still install the cedar roof of your dreams. The requirements for an asphalt shingles roof are contained in the international building code. This means for every 12 horizontal units the roof must rise a minimum of 2 vertical units. Minimum slope for asphalt shingles.

What is the minimum pitch slope of an asphalt shingle roof. There are differing opinions as to the minimum slope for a roof but the generally accepted minimum is 3 12. Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run. So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run.

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. Experience the total owens corning roofing system and high quality roofing shingles. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. In high moisture climates low slope roofs will require additional maintenance to ensure excess water does not enter your home.

The minimum slope for an asphalt shingle roof is 2 12. The same can also be the case when the tiled roof has a reduced exposure. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. The roof pitch between 2 12 and 4 12 is considered as a low pitch roof.

The minimum requirement is 2 12. 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. Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles.

That works out to about nine degrees if that works better for you. According to this code the minimum slope for asphalt shingles is 17 degrees or two vertical units to twelve units in the horizontal. Learn more about slope roof. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.

Asphalt shingles continue to be the most widely installed roof covering option in north america. Asphalt shingles can only be installed on roof slopes of 2 12 or greater. An installer will apply the cedar shingles of a fully waterproof built up roof or layer. We can even help you find a professional to install it.

Asphalt shingles minimum roof slope roof pitch r905 2 2.