How To Figure Out Roof Pitch

Take a measurement of 12 inches using a level.

How to figure out roof pitch.

Rafter rise run from the pythagorean theorem. Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. Check the surface of the. For a roof with the ridge above one wall the span is the same as the run.

Divide the slope by two to get the pitch. This will allow your project to carry the depth and detail in the roof that you wanted as well as make sure that it will maintain a sturdy and effective nature throughout. Pitch is the incline of the roof represented as the ratio of rise to the span twice the run. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. First measure 12 inches from one end of the level and make a mark. Position your level against the roof until the bubble of the vial sits between two lines. See the image below for more explanation on rise run and pitch.

Take the measurement of the vertical. The slope is the same as the pitch. How to calculate roof pitch. How to measure roof pitch to measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.

If you want to know how to find the pitch of a roof then start with 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. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Before taking any measurements you must first confirm that it s safe to walk on your roof.

For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. A 12 in 12 pitch is a steep 45 degree angle roof. Pitch tan angle where angle is the roof pitch expressed in degrees.