This means for every 12 horizontal units the roof must rise a minimum of 2 vertical units.
Minimum slope of roof for shingles.
The minimum requirement is 2 12.
According to this code the minimum slope for asphalt shingles is 17 degrees or two vertical units to twelve units in the horizontal.
We can even help you find a professional to install it.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
Asphalt shingles minimum roof slope roof pitch r905 2 2.
That works out to about nine degrees if that works better for you.
The same can also be the case when the tiled roof has a reduced exposure.
An installer will apply the cedar shingles of a fully waterproof built up roof or layer.
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.
Some people recommend not installing asphalt shingles on slopes below 5 12 but a skilled roofer may well be able to make this work.
So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
The roof pitch between 2 12 and 4 12 is considered as a low pitch roof.
Minimum slope for asphalt shingles.
What is the minimum pitch slope of an asphalt shingle roof.
Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles.
The requirements for an asphalt shingles roof are contained in the international building code.
The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.
The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.
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.
There are differing opinions as to the minimum slope for a roof but the generally accepted minimum is 3 12.
Learn more about slope roof.
If your home features a low slope roof you can still install the cedar roof of your dreams.
Asphalt shingles can only be installed on roof slopes of 2 12 or greater.
Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run.
Shingles of all types need to have a slope to function properly.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
