How To Know Roof Pitch

Often you express roof pitch as the ratio between the rise and the run in the form of x 12.

How to know roof pitch.

First measure 12 inches from one end of the level and make a mark. Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. 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. 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.

For more complex roofs you may need to calculate it section by. Roof pitch refers to the slope which the rafter creates. Some levels have markings already and in this case you are ready. How to determine your roof pitch the easy way step 1.

Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Make sure your have a 12 mark on your level. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. Rafter rise run from the pythagorean theorem.

Climb on the roof and measure. For a roof with the ridge above one wall the span is the same as the run. Rise run pitch where pitch is expressed in percent. 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.

How to calculate roof pitch. Pitch tan angle where angle is the roof pitch expressed in degrees. If you want to know how to find the pitch of a roof then start with a calculator.