How Do I Figure Out The Pitch Of A Roof

First measure 12 inches from one end of the level and make a mark.

How do i figure out the pitch of a roof.

For example if you used a 24 inch level and your measurement was 12 inches the pitch in your roof is 6 in 12. If you do need to calculate the pitch an estimate or shortcut is usually more practical than measuring the roof s overall dimensions. Divide the results by the number of 12 inch segments in your level. If your roof pitch is greater than 3 your roof is considered pitched read more about roof pitch at wikipedia.

Rafter rise run from the pythagorean theorem. Divide the slope by two to get the pitch. The roof pitch measures the steepness of your shed roof and typically takes values from 1 to 12. On the roof hold the level perfectly level and measure the height from the roof to the level 12 inches away from where the level touches the surface this will be the rise.

You can use the following equations to find the length of the rafter and the slope. 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. Often you express roof pitch as the ratio between the rise and the run in the form of x 12.

You can also estimate a roof pitch by eyeballing it from the ground from the gable side with a level and ruler. 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. How to calculate roof pitch. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally.

Roof pitch refers to the slope which the rafter creates. This free roof pitch calculator will take your roof width see the picture and rise the height of the roof and will calculate the roof pitch both as numeric value. You ll need a level that is 12 or longer and a tape measure. Pitch is the incline of the roof represented as the ratio of rise to the span twice the run.

Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Generally roof pitch is calculated from the same formula that describes a right triangle. Here are a couple examples. Here s an easy safe way to determine the pitch from inside your attic.

One method to find the pitch is to climb on the roof and measure the rise for a 12 run.