How Measure The Pitch Of A Roof

Pitch rise run 1 5 6 25.

How measure the pitch of a roof.

For a roof with the ridge above one wall the span is the same as the run. Calculate the rafter length substituting these values into the following formula. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. Before taking any measurements you must first confirm that it s safe to walk on your roof.

Position your level against the roof until the bubble of the vial sits between two lines. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. A roof s pitch is the rise for every 12 inches it runs. First measure 12 inches from one end of the level and make a mark.

Take the measurement of the vertical. 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. Check the surface of the. Calculate the roof pitch as the proportion of rise and run.

How to calculate the pitch of a roof method one. Roof pitch roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. Measure the rise of your roof. Measure from the attic.

One method to find the pitch is to climb on the roof and measure the rise for a 12. Another method to find the roof pitch is to go into the attic and measure the rise. Let s say it is equal to 1 5 m. Measure from the roof.

Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m. Take a measurement of 12 inches using a level. To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. The slope is the same as the pitch.

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