Sloped Roof 2 Per 12

The most common slopes are.

Sloped roof 2 per 12.

They have a pitch ranging from 4 12 to 9 12. Also if asphalt shingles are installed on a roof slope of 2 12 to 4 12 it shall be provided with a double underlayment application. You can also calculate roof pitch even without using a roof slope calculator. There are two main categories of roofing.

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. Metal roof slope is expressed by a ratio indicating the roof pitch which notes the vertical rise of the roof in inches for every 12 inches the roof runs horizontally in other words dividing the vertical rise and its horizontal span. That is the roof s rise. For example if you measure 4 inches the pitch of your roof is 4 12.

These roofs have a pitch less than 4 12. Most roof s have a pitch in the 4 12 to 9 12 range. Pitch of roof slope factor valley hip factor. 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.

High pitched roofs often need extra fasteners and their pitch can be as high as 21 12. 2 12 roof pitch angle 9 46 degrees. Download the slope chart pdf. Roof slope style.

A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. 3 12 1 2 12 and 1 4 12. Conventional slope roof range between 4 in 12 and 8 in 12. If a roof rises 2 in a length of 12 this is 2 12 roof pitch.

This means for every 12 horizontal units the roof must rise a minimum of 2 vertical units. A low slope roof is anywhere from 2 in 12 to 4 in 12. Conventional roofs are the easiest to construct and you can walk on them safely. The run always remains constant at 12 inches.

Clay and concrete tile. The table below shows common roof pitches and the equivalent grade degrees and radians for each. A flat roof has a slope of 2 in 12 or less.