Standard Roof Pitch Degrees

Some of the most common roof pitch types are conventional slope type roofs designed with pitch ranging from 4 12 to 9 12.

Standard roof pitch degrees.

The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. The most commonly used roof pitches fall in a range between 4 12 and 9 12. 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. Identify the rise and run.

Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled. To see what the degree equivalents are for standard rise in run roof pitches see our page quick reference. The pros and cons of aluminum roofing. Roof pitch and corresponding angles.

Most roof s have a pitch in the 4 12 to 9 12 range. Divide its rise by run in. Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs. Locate its tangent or tan and follow the left row for you to read its corresponding degree.

Select the best roof trusses and budget amount. The rise will be equal to the amount of the incline within the given distance or the run that. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof. 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.

You write the pitch assuming a run of 12 inches thus the ratio would describe how much a roof rises for each foot of the run. These are utilized in residential applications. Roof pitches exceeding the level of 9 12 or approximately 37 degrees are termed steep slope roofs. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Common roof pitches and equivalent grade degree and radian angles. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. Roof slope expressed as rise. Determine its angle through taking a 12 inch level and.

How do you calculate the slope of a roof. Pitches above 9 12 are very highly angled and are designated steep slope roofs. As aforementioned there is no standard pitch of a roof.