Roof Slope Angle Chart

Let s say it is equal to 1 5 m.

Roof slope angle chart.

Some sources consider low slope to include 3 12 pitch roofs. Then you ll be able to measure slope from an unfinished attic space under the roof. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. Pitch rise run 1 5 6 25.

Whatever you decide to go with though finding the best roof pitch chart is going to be very important. Notes to the table above. Roof pitch angle and slope factor charts. 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.

Measure the rise of your roof. Roof pitch is a term describing how steep or flat your roof slope is. If asphalt shingles are to be installed on a low slope roof special steps are required to avoid short roof life and roof leaks. Calculate the roof pitch as the proportion of rise and run.

Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m. Using a tape measure make a pencil mark 12 inches from the end of a carpenter s level. Low slope roofs are from 0 to 3 12 in pitch. On blue prints architects engineers usually display the pitch of a roof in the format shown on the image where number 4 represents a rise and number 12 represents a length.

To obtain an accurate roof pitch measurement properly measure the rise and run. The combination of two numbers are used to display or show the roof pitch.