2 12 Slope Roof

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.

2 12 slope roof.

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. These are generally difficult in maintenance as they require special materials to avoid leaks. For roofs that will experience heavy snow or wind and will span the same distance use 2 6 rafters. Simply put it s a shallow roof.

Thus pitch is typically greater in areas of high rain or snowfall. 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. To obtain an accurate roof pitch measurement properly measure the rise and run. Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow.

I ve been reading and reading but haven t found a good answer. They are the easiest ones to construct and. For roofs that won t experience heavy snow loads a gable roof can span up to 22 with 2 4 rafters. Using a tape measure make a pencil mark 12 inches from the end of a carpenter s level.

In degrees 10 2 in 12 or 1 in 6 is considered a minimum. Low pitched roofs have the pitch below 4 12 33 3. 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. 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.

Most roof s have a pitch in the 4 12 to 9 12 range. Asphalt shingles continue to be the most widely installed roof covering option in north america. Generally these roofs have a pitch from 1 2 12 to 2 12 from 4 2 to 16 7. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

The exact roof slope in degrees is given by the arctangent. Definitions vary on when a roof is considered pitched. Conventional roofs have the pitch ranging from 4 12 to 9 12 33 3 to 75. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.

Then you ll be able to measure slope from an unfinished attic space under the roof.