Slope Of A 2 12 Roof

Other than the 45 roof slope which is 12 in 12 none of the standard roof pitches 5 in 12 6 in 12 etc are equal to a whole degree.

Slope of a 2 12 roof.

These roofs have a pitch less than 4 12. High pitched roofs often need extra fasteners and their pitch can be as high as 21 12. Then you ll be able to measure slope from an unfinished attic space under the roof. They have a pitch ranging from 4 12 to 9 12.

The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof. You can also calculate roof pitch even without using a roof slope calculator. Minimum roof slope roof pitch r905 3 2.

What is the minimum slope for an asphalt shingle roof. Clay and concrete roof tiles can only be installed on roof slopes of 2 1 2 12 or greater. Simply locate a roof rafter board place the end of the level against the bottom edge and measure from the 12 inch mark vertically to the bottom edge of the rafter. Most roof s have a pitch in the 4 12 to 9 12 range.

They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. The best roofs for a 2 12 pitch roof pitch basics. Common roof pitches and equivalent grade degree and radian angles. This means for every 12 horizontal units the roof must rise a minimum of two and one half vertical units.

Learn more about finding the angle of a line using our slope calculator. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal. A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72.

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Asphalt shingles continue to be the most widely installed roof covering option in north america.