Roof Pitch Angles In Degrees

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Roof pitch angles in degrees.

In the usa the range of standard pitches is anywhere between 4 12 and 9 12. 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. Divide its rise by run in. Locate its tangent or tan and follow the left row for you to read its corresponding degree.

Most roof s have a pitch in the 4 12 to 9 12 range. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. Pitch tan angle use this when you express the angle of the roof pitch in degrees what is the standard pitch of a roof. 8 12 pitch 33 75 degrees.

In the uk the typical house has a pitch between 40 50 although 45 should be avoided. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. A 7 12 pitch equals 30 26 degrees. Common roof pitches and equivalent grade degree and radian angles.

Roof angle in degrees to rise in run. Identify the rise and run. 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. 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.

This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. The combination of two numbers are used to display or show the roof pitch. Contemporary houses often have flat roofs which shouldn t be completely flat but should be around 1 40. Determine its angle through taking a 12 inch level and.

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. The following diagram will let you easily convert roof pitch to degrees.