Position your level against the roof until the bubble of the vial sits between two lines.
Pitch my roof.
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.
Take the measurement of the vertical.
One method to find the pitch is to climb on the roof and measure the rise for a 12.
How to calculate the pitch of a roof method one.
The value displayed as the rise will be your x.
Another method to find the roof pitch is to go into the attic and measure the rise.
Before taking any measurements you must first confirm that it s safe to walk on your roof.
Check the surface of the.
Measure from the attic.
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.
Pitch tan angle where angle is the roof pitch expressed in degrees.