They have a pitch ranging from 4 12 to 9 12.
Roof systems for 2 12 slope roof.
Roof pitch defined and explained.
The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.
Conventional roofs are the easiest to construct and you can walk on them safely.
Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.
Generally such roofs have a pitch ranging from 1 2 12 to 2 12.
Image 1 12 to 12 12 roof pitch 7 12 pitch.
Roof pitch designations are comprised of two numbers indicating a ratio.
So a roof with four inches of rise every 12 inches horizontally run would have a slope of 4 12 sometimes displayed as 4 12.
Pitch is the term used to describe the angle slope or slant of your roof.
Roof pitch degree table.
Simply put it s a shallow roof.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes.
If this isn t practical then perform the same measurement on the underside of the roof.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
Or the colon can replace the slash as in 2 12 or 7 12.
The list below contains the common roof slopes and the terms which classify them.
3 12 1 2 12 and 1 4 12.
For roofs that won t experience heavy snow loads a gable roof can span up to 22 with 2 4 rafters.
You can use either 2 6 or 2 4 rafters for roofs with a 3 12 pitch or greater but it depends on the overall size of your shed.
We included a roof pitch chart below the 7 12 example image and the calculator below that.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
For roofs that will experience heavy snow or wind and will span the same distance use 2 6 rafters.
21 12 and higher.
A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance.
That means the roof doesn t shed water as easily as steeper roofs which is why choosing the right type of roofing material is so important.
These roofs have a pitch less than 4 12.