How To Know Roof Pitch

How to determine your roof pitch the easy way step 1.

How to know roof pitch.

Pitch tan angle where angle is the roof pitch expressed in degrees. For more complex roofs you may need to calculate it section by. For a roof with the ridge above one wall the span is the same as the run. Some levels have markings already and in this case you are ready.

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. To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. If you want to know how to find the pitch of a roof then start with a calculator. Rise run pitch where pitch is expressed in percent.

For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. Often you express roof pitch as the ratio between the rise and the run in the form of x 12. 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. Rafter rise run from the pythagorean theorem.

First measure 12 inches from one end of the level and make a mark. The slope is the same as the pitch. Even if you want to use a flat roof pitch calculator system you will be able to find one. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level.

How to calculate roof pitch. You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. Make sure your have a 12 mark on your level.