Roof Pitch Conversion Table

Since pitch is the rise over a 12 inch run divide the run by 12 to get the multiplier in this case 120 12 10.

Roof pitch conversion table.

Roof slope expressed as rise. A roof pitch multiplier also called a roof pitch factor is a number that is multiplied by the area covered by a sloped roof to produce the area of the actual surface of the roof. What is a roof pitch chart. Pitch tan angle use this when you express the angle of the roof pitch in degrees what is the standard pitch of a roof.

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. There are many tools out there. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. In essence a roof pitch chart is provided as a rough guide usually by a roofing company to help you see what the average roof pitches tend to be.

Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. The pitch of this roof is 4 8 12. 48 10 4 8. Roof pitch and corresponding angles.

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. For roof slopes expressed as x in 12 rise in run the roof pitch multiplier is determined by finding the square root of rise run 1. To see what the degree equivalents are for standard rise in run roof pitches see our page quick reference. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees.