2 12 Roof Pitch In Degrees

On blue prints architects engineers usually display the pitch of a roof in the format shown on the image where number 4 represents a rise and number 12 represents a length.

2 12 roof pitch in degrees.

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. A 12 12 pitch roof has a pitch angle of 45. Some roof specifications may express slope in the typical geometric terms of degrees. Conventional forms range from 4 12 9 12 and steep slope roofing is more than 9 12 and requires extra fasteners.

Roof pitch degree table. Divide the first part of the ratio by 12 to work out the pitch. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. To convert between american roofing ratios and pitch degrees follow these steps.

2 12 roof pitch angle 9 46 degrees. For reference 2 12 equates to about 9 5º and 4 12 to about 18 5º. For this you can take help from roof pitch factor chart. Most roof s have a pitch in the 4 12 to 9 12 range.

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. What degree angle is a 12 12 pitch roof. What roof angle in degrees. If a roof rises 2 in a length of 12 this is 2 12 roof pitch.

Enter any angle or fraction of angle to find pitch. 45 this is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations. At slopes below 2 12 a granule surfaced asphalt membrane can be installed and many are available in colors to complement the shingle colors. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72.

Roof pitch angle roof pitch multiplier 1 12 4 76 1 0035 2 12 9 46 1 0138. Find the inverse tangent of the pitch to find the angle in degrees. If your house roof is built with multiple pitches then square per roof must be calculated differently. A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely makes the cut off for one of the most popular roofing material options.

The table below shows common roof pitches and the equivalent grade degrees and radians for each.