Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio.
Pitch on a roof examples.
For example if you used a 24 inch level and your measurement was 12 inches the pitch in your roof is 6 in 12.
The angle or pitch of a roof is calculated by the number of inches it rises vertically for every 12 inches it extends horizontally.
For example a roof that rises 4 inches for every 12 inches of run has a 4 12 pitch.
Measure from the attic 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.
For example a roof that rises 6 inches for every 12 inches of horizontal run has a 6 in 12 pitch.
Pitch is written assuming a run of a foot or 12 inches so the ratio describes how much the roof rises for every foot of its run.
How to calculate roof pitch height.
Squaring building lines example 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.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
To determine your roof pitch calculator.
Divide the results by the number of 12 inch segments in your level.
What is a roof pitch examples.
Finding the percent of your slope is easy if you know the height of your roof.
For example if the level is 4 above the roof at a point 12 away from where the level is touching the surface then the pitch is 4 12.
The same pitch is also sometimes written as 4 12 4 in 12 or 4 over 12.
Using our previous dimensions the equation is rise run x100 the percent of your roof pitch.
Two examples at each end of the spectrum.
6 12 roof pitch 26 angle 26 57 degrees details.
4 12 roof pitch 18 angle 18 43 degrees details.
One of the most important aspects of trying to get the roof right though is the pitch.
Think of a classic addams.
Roof slope roof angle and pitch degrees.
5 12 roof pitch 22 angle 22 62 degrees details.
Roofing terminology for roof pitch are.
To see roof pitch to degrees equivalents.
How to measure roof pitch.
It was fashionable for modern style homes built in the 1960s to have little pitch just a barely negligible.
Roofs on victorian era houses were often sharply angled with a steep pitch.
You can also estimate a roof pitch by eyeballing it from the ground from the gable side with a level and ruler.