Roof Pitch Conversion To Degrees

The chart shows plumb cuts so to get the level cut remember that 90 plumb cut level cut.

Roof pitch conversion to degrees.

Rise run rise run slope. Enter base length to calculate rise and diagonal for current pitch angle. Convert roof pitch to degrees. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72.

This is usually expressed with the rise and followed by the run in the imperial measurement system dominated by number 12 which in turn gives a ratio of the total measurement of the incline for every 1 foot or 12 inches of run. The value displayed as the rise will be your x. How to convert roof pitch to degrees 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. The roof s pitch is the vertical rise and it is divided into its horizontal run or span known as slope in stair construction and the tangent function in geometry or trigonometry.

When determining the angle of a hip use 16 97 instead of 12 in the formula above. First convert the pitch to a slope. If you want to find the roof pitch in the form of x 12 simply calculate the pitch and substitute 12 for the run length. Roof pitch and corresponding angles.

To see what the degree equivalents are for standard rise in run roof pitches see our page quick reference. Roof slope expressed as rise. Roof pitch is described as rise in run typically the rise in a run of 12 units. Hip rafters are different.

To do this simply convert the rise and run as a fraction to a decimal form eg. 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. Roof pitch to degrees equivalents this drawing demonstrates how many degrees rise for each pitch of a typical roof. Roof slope calculator example of use.

Here is a handy conversion chart to convert roof pitches to degrees in case you don t have time for all that math. Other than the 45 roof slope which is 12 in 12 none of the standard roof pitches 5 in 12 6 in 12 etc are equal to a whole degree. 8 12 pitch 33 75 degrees. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees.