Roof pitch is a measurement of a roof s slope expressed as a ratio.
Example of roof pitch.
So if your roof rises 4 inches for every 12 inches of horizontal length then the pitch of your roof is expressed as 4 12.
Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.
The way pitch also known as roof slope is measured is rise over run.
A ratio is the most common way of expressing roof pitch or roof slope but degrees are also possible.
You can also estimate a roof pitch by eyeballing it from the ground from the gable side with a level and ruler.
Although there is no single standard roof pitch used on all sloped roofs factors such as roofing materials and local climate help to determine the appropriate range of pitches for a given building.
For example a roof that rises 6 inches for every 12 inches of horizontal run has a 6 in 12 pitch.
Let s say it is equal to 1 5 m.
Roof pitch degree table.
For example if you used a 24 inch level and your measurement was 12 inches the pitch in your roof is 6 in 12.
This article series gives clear examples just about every possible way to figure out any or all roof dimensions and measurements expressing the roof area width length slope rise run and unit rise in inches per foot.
One of the most important aspects of trying to get the roof right though is the pitch.
If this isn t practical then perform the same measurement on the underside of the roof.
Here s an easy safe way to determine the pitch from inside your attic.
We included a roof pitch chart below the 7 12 example image and the calculator below that.
Knowing the pitch of your roof is useful when designing an addition installing skylights or cutting new rake boards.
How to measure roof pitch.
Let s assume it is equal to 6 m.
See more ideas about roof pitched roof roofing.
Apr 27 2014 explore tricia willis s board different roof pitches followed by 231 people on pinterest.
The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed.
Understanding a roof s pitching can be quite tough if you are just getting started and working with a roofer can leave you a little bit unsure about what is being suggested with regard to the job there s so much to learn that it can become a bit baffling.
Measure the rise of your roof.
Calculate the rafter length substituting these values into the following formula.
Roof pitch is the measurement of roof steepness.
Roof slope calculator example of use.
Measure the run length it is the horizontal distance between the roof ridge and the wall of the building.