Work Out My Roof Pitch

Find the inverse tangent of the pitch to find the angle in degrees.

Work out my roof pitch.

If you are trying hard to work out how to figure roof pitch measurements the calculator takes away all of those problems for you more or less instantly. The slope is the same as the pitch. Before taking any measurements you must first confirm that it s safe to walk on your roof. Marvel at your mathematical prowess.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. To convert between american roofing ratios and pitch degrees follow these steps. How to calculate the pitch of a roof method one. Position your level against the roof until the bubble of the vial sits between two lines.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Pitch is the incline of the roof represented as the ratio of rise to the span twice the run. One method to find the pitch is to climb on the roof and measure the rise for a 12. Check your results with the omni roof pitch calculator.

Check the surface of the. A 12 12 pitch roof has a pitch angle of 45. Divide the slope by two to get the pitch. A 12 in 12 pitch is a steep 45 degree angle roof.

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. Measure from the attic. For a roof with the ridge above one wall the span is the same as the run. Divide the first part of the ratio by 12 to work out the pitch.

If you are trying to learn how to measure roof pitch calculations accurately you should really consider the importance of using a calculator. For example if the roof rises 4 feet and the span is 16 feet twice the run then the pitch is 4 16 or 1 4. Take a measurement of 12 inches using a level. Another method to find the roof pitch is to go into the attic and measure the rise.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. See the image below for more explanation on rise run and pitch.