Roof Pitch Conversion

To find the angle of a roof in degrees convert the pitch to a slope then convert to degrees by finding the arc tangent of the slope.

Roof pitch conversion.

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. Roof pitch conversion charts are very useful for one thing they give you all the information that you need to provide to the professionals. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. 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.

With the use of this converter it will be easier for you to locate a 30 degree roof pitch 20 degree roof pitch 25 degree roof pitch or a 15 degree roof pitch. The charts are there to provide people with an idea of what the actual slope will. Rise run rise run slope. To do this simply convert the rise and run as a fraction to a decimal form eg.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. First convert the pitch to a slope. 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. However if you to do the process using your own knowledge you can still convert pitch to degrees by dividing the rise and run and get its corresponding measurement.