2 12 Slope Roof

The exact roof slope in degrees is given by the arctangent.

2 12 slope roof.

In degrees 10 2 in 12 or 1 in 6 is considered a minimum. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Asphalt shingles continue to be the most widely installed roof covering option in north america. For roofs that will experience heavy snow or wind and will span the same distance use 2 6 rafters.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. 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. Low pitched roofs have the pitch below 4 12 33 3.

Conventional roofs have the pitch ranging from 4 12 to 9 12 33 3 to 75. Generally these roofs have a pitch from 1 2 12 to 2 12 from 4 2 to 16 7. Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow. These are generally difficult in maintenance as they require special materials to avoid leaks.

For roofs that won t experience heavy snow loads a gable roof can span up to 22 with 2 4 rafters. 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. Then you ll be able to measure slope from an unfinished attic space under the roof. They are the easiest ones to construct and.

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. Definitions vary on when a roof is considered pitched. Most roof s have a pitch in the 4 12 to 9 12 range. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

I ve been reading and reading but haven t found a good answer. To obtain an accurate roof pitch measurement properly measure the rise and run. Simply put it s a shallow roof. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

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.