How To Determine Roof Slope Angle

The roof pitch is the slope of the rafter.

How to determine roof slope angle.

Find the inverse tangent of the pitch to find the angle in degrees. The angle or pitch of a roof is calculated by the number of inches it rises vertically for every 12 inches it extends horizontally. Roof pitch is used to describe the slope or angle of the roof. The pitch is commonly defined as the ratio of rise over run in the form of x 12.

For example a roof that rises 6 inches for every 12 inches of horizontal run has a 6 in 12 pitch. A 12 12 pitch roof has a pitch angle of 45. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. For example if a roof has a pitch of 4 12 then for every 12 inches the building extends horizontally it rises 4 inches.

To convert between american roofing ratios and pitch degrees follow these steps. Homes and other buildings have roofs with slopes ranging from no slope or flat to very steep slopes. Angle the angle of a roof is the same as the roof s slope except instead of being. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.

If you want to know how to find the pitch of a roof then start with a calculator. With the help of these roof pitch degree calculator programs you can make sure that your home is nice and balanced. It always makes sense to the standard roof pitch angle spot on as the benefits of doing so are quite obvious. What degree angle is a 12 12 pitch roof.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. The rise is the height of the roof and the run is the horizontal span as pictured above. How to calculate the pitch of a roof. Divide the first part of the ratio by 12 to work out the pitch.

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 results explained.