Sloped Roof 2 Per 12

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.

Sloped roof 2 per 12. 3 12 1 2 12 and 1 4 12. 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 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. Roof slope style.

Once you ve figured out the pitch of your roof you can consult the following chart to discover the slope factor and hip valley factor. Most roof s have a pitch in the 4 12 to 9 12 range. Asphalt shingles can only be installed on roof slopes of 2 12 or greater. Clay and concrete tile.

A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. A low slope roof is anywhere from 2 in 12 to 4 in 12. A flat roof has a slope of 2 in 12 or less. That is the roof s rise.

The run always remains constant at 12 inches. Download the slope chart pdf. This means for every 12 horizontal units the roof must rise a minimum of 2 vertical units. 2 12 roof pitch angle 9 46 degrees.

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. Conventional roofs are the easiest to construct and you can walk on them safely. 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.

The table below shows common roof pitches and the equivalent grade degrees and radians for each. There are two main categories of roofing. You can also calculate roof pitch even without using a roof slope calculator. They have a pitch ranging from 4 12 to 9 12.

The most common slopes are. For example if you measure 4 inches the pitch of your roof is 4 12. High pitched roofs often need extra fasteners and their pitch can be as high as 21 12.