How Do You Figure Out Roof Pitch

For more complex roofs you may need to calculate it section by.

How do you figure out roof pitch. Hold the level straight and level bubble centered and then measure the vertical distance down from the your 12 mark on the level down to the roof. Check the surface of the. Measure from the roof. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level.

If you want to know how to find the pitch of a roof then start with a calculator. The slope is the same as the pitch. Another method to find the roof pitch is to go into the attic and measure the rise. Even if you want to use a flat roof pitch calculator system you will be able to find one.

Here s an easy safe way to determine the pitch from inside your attic. How to calculate roof pitch. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. One method to find the pitch is to climb on the roof and measure the rise for a 12.

For a roof with the ridge above one wall the span is the same as the run. Pitch tan angle where angle is the roof pitch expressed in degrees. Take the measurement of the vertical. 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. How to calculate the pitch of a roof method one. Rafter rise run from the pythagorean theorem. This is the amount your roof inclines in a 1 foot span or the pitch of your roof.

Measure from the attic. Take a measurement of 12 inches using a level. Place the end of your level the 0 inch point of your 12 marking against the roof surface. Rise run pitch where pitch is expressed in percent.