Solve For Roof Pitch

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Solve for roof pitch.

Recalculate this value into an angle. How to convert angle in degrees to roof pitch. The pitch of your roof is 3 12. 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.

Pitch rise run 1 5 6 25. Pitch measurement method 1. Calculate the roof pitch as the proportion of rise and run. First find the slope by finding the tangent of the degrees eg.

On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof. If you know the angle of the roof in degrees you can find the roof pitch by converting the angle in degrees to a slope then finding the rise by multiplying the slope by 12. If this distance measures 4 inches you have a 4 in 12 pitch. X pitch 12 0 25 12 3.

Roof pitch calculator results explained slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run. 8 inches and you have an 8 in 12 pitch. Here are the equations you may use to solve for the length of the slope and the rafter. This is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares.

Angle arctan pitch arctan 0 25 14 finally you can find the roof pitch in the form of x 12.