Here are the steps to follow for the roof angle calculator.
How do you find the slope of a roof.
You can measure with twelve feet or twelve yards but in this article we will use twelve inches.
Some sources consider low slope to include 3 12 pitch roofs.
There s no need to simplify them.
The horizontal distance in the ratio will be 12 while the vertical distance is the measurement you took from the rafters.
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.
For example when a roof has a slope of 5 12 the roof is 5 inches high for every 12 inches long.
The slope of your roof is the ratio of the vertical distance or rise of the roof to the horizontal distance or run.
Low slope roofs are from 0 to 3 12 in pitch.
Divide the rise by the run.
For example if the roof slope is 45 then sec 45 1 414213.
Then enter the value of the run and choose the unit of measurement from the drop down menu.
Notes to the table above.
Another way of stating this is that the roof has a rise of 5 and a run of 12.
First enter the value of the rise and choose the unit of measurement from the drop down menu.
The slope of your roof is the ratio of vertical distance rise to horizontal distance run.
Using an online calculator.
If asphalt shingles are to be installed on a low slope roof special steps are required to avoid short roof life and roof leaks.
Just write down the measurements you found.
Finally enter the value of the rafter length and.