They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
Minimum roof slope for 3 tab shingles.
But since there is still a wide variety of slate roofing systems there are occasions when the minimum pitch can go down to as low as 15 0 depending on the uniqueness of the roof.
There are differing opinions as to the minimum slope for a roof but the generally accepted minimum is 3 12.
This number corresponds to the number of inches of rise in a 12 foot run.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
Therefore the asphalt manufactures base their warranties around the minimum recommended pitch of 4 in 12.
Roof pitch designations are comprised of two numbers indicating a ratio.
Asphalt shingles are an effective roof covering material for sloped roofs that can be successfully used on slopes as low as 2 12.
Asphalt composition shingles are designed to be installed on roof slopes greater than a 4 in 12 pitch.
Owens corning supreme 33 33 sq ft shasta white 3 tab roof shingles.
Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above.
Learn what the minimum slope for an asphalt shingle roof is the difference between sloped and flat roofs and how to calculate the slope of any roof.
Item 12061 model sa12.
We do install shingles on these in between.
Normal roof slope for typical installation.
Pitch is the term used to describe the angle slope or slant of your roof.
With respect to shingle application roof slopes from 2 12 to less than 4 12 18 5 are called low slope roofs while roof slopes of 4 12 or greater are called normal or standard slopes.
Low sloped roof shingle installation.
Roof pitch defined and explained.
Some people recommend not installing asphalt shingles on slopes below 5 12 but a skilled roofer may well be able to make this work.
Minimum roof pitch for shingles.
Or the colon can replace the slash as in 2 12 or 7 12.
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.
The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.