First measure 12 inches from one end of the level and make a mark.
How do i find the pitch of a roof.
Enter any pitch or fraction of pitch to find angle.
If you do need to calculate the pitch an estimate or shortcut is usually more practical than measuring the roof s overall dimensions.
Rafter rise run from the pythagorean theorem.
For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally.
Enter any angle or fraction of angle to find pitch.
Then enter the value of the run and choose the unit of measurement from the drop down menu.
This is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations.
To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.
Rise run pitch where pitch is expressed in percent.
Divide the slope by two to get the pitch.
How to calculate roof pitch.
Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level.
You can also estimate a roof pitch by eyeballing it from the ground from the gable side with a level and ruler.
Finally enter the value of the rafter length and.
Here are the steps to follow for the roof angle calculator.
Here are a couple examples.
How to measure roof pitch.
For example if you used a 24 inch level and your measurement was 12 inches the pitch in your roof is 6 in 12.