Roof Slope Conversion Chart

Given that roofs are normally spotted from a distance long before any windows and doors they will be a large determining factor as to what someone will think of when they look at your property.

Roof slope conversion chart.

To find the angle of a roof in degrees convert the pitch to a slope then convert to degrees by finding the arc tangent of the slope. Giving you a slope of 8 556 in 12 or. It s very inexpensive and very accurate. You can also calculate roof pitch even without using a roof slope calculator.

Approximately 8 9 16 in 12. 0 713 x 12 8 556. Then you ll be able to measure slope from an unfinished attic space under the roof. 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.

Use the following formula which also describes a right triangle. Rafter rise run this formula is from the pythagorean theorem. To obtain an accurate roof pitch measurement properly measure the rise and run. First convert the pitch to a slope.

Rise run rise run slope. Here are the equations you may use to solve for the length of the slope and the rafter. To do this simply convert the rise and run as a fraction to a decimal form eg. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.