The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72.
12 12 roof pitch in degrees.
Roof pitch degree table.
But how are going to determine the angle s degree.
There are many websites which are offering this facility.
Image 1 12 to 12 12 roof pitch 7 12 pitch.
Also roof pitch angle is sometimes referred to as 12 12 6 12 8 12 and so forth.
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.
This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees.
The following are important details to better understand this conversion.
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 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.