The roof pitch is the slope of the rafter.
Pitch finder for roofs.
Recalculate this value into an angle.
You ll need a level that is 12 or longer and a tape measure.
To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.
Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results.
Pitch rise run 1 5 6 25.
It can also be written down as 25 or 14.
It can be calculated either using rafter and rise or rafter and run both using the pythagorean theorem as a roof pitch finder.
For example if you find 4 inches of height with the tape measure at the 12 inch mark on the level your slope is 4 12 or 4 in 12.
On the roof hold the level perfectly level and measure the height from the roof to the level 12 inches away from where the level touches the surface this will be the rise.
For example if a roof has a pitch of 4 12 then for every 12 inches the building extends horizontally it rises 4 inches.
Run 2 rafter 2 rise 2.
Here s an easy safe way to determine the pitch from inside your attic.
Calculate the roof pitch as the proportion of rise and run.
X pitch 12 0 25 12 3.
The slope of your roof is the ratio of vertical distance rise to horizontal distance run.
Angle arctan pitch arctan 0 25 14 finally you can find the roof pitch in the form of x 12.
Pitch finder take pictures accurate roof take offs measurements preview the roof on the map then save or import image blueprint access sketch tool and trace the roof to measure one plane at a time no need to set a scale unless using an image blueprint use positioning tool and tap points to reposition or delete.
What is the roof pitch.
The roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need.
Roof pitch calculator the roof pitch calculator calculates slope pitch angle and rafter lengths based on input of rise m and run r.
The pitch is commonly defined as the ratio of rise over run in the form of x 12.
Just write down the measurements you found.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.
After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.
The pitch of your roof is 3 12.
One method to find the pitch is to climb on the roof and measure the rise for a 12 run.
First measure 12 inches from one end of the level and make a mark.
All you need to do is just to rearrange the equations.
Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level.
