The value displayed as the rise will be your x.
Pitch my roof.
Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level.
Another method to find the roof pitch is to go into the attic and measure the rise.
How to calculate the pitch of a roof method one.
Measure from the roof.
Check the surface of the.
Take the measurement of the vertical.
Measure from the attic.
One method to find the pitch is to climb on the roof and measure the rise for a 12.
Take a measurement of 12 inches using a level.
If you want to find the roof pitch in the form of x 12 simply calculate the pitch and substitute 12 for the run length.
First measure 12 inches from one end of the level and make a mark.
Pitch tan angle where angle is the roof pitch expressed in degrees.