Then enter the value of the run and choose the unit of measurement from the drop down menu.
How do i get the pitch of a roof.
Divide the slope by two to get the pitch.
Find the tangent of the angle tan angle.
Here are the steps to follow for the roof angle calculator.
From the attic hold a level perfectly level and touching a rafter at one end.
First measure 12 inches from one end of the level and make a mark.
How to measure roof pitch.
First enter the value of the rise and choose the unit of measurement from the drop down menu.
To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.
For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally.
This is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations.
Enter any angle or fraction of angle to find pitch.
A 30 roof pitch is roughly the same as a 7 12 roof pitch.
Another method to find the roof pitch is to go into the attic and measure the rise for a 12 run of the roof rafters which allows finding the pitch without going on the roof.
This gives you the pitch of the roof.
Finally enter the value of the rafter length and.
Enter any pitch or fraction of pitch to find angle.
Here are a couple examples.