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.

Common roof pitches and equivalent grade degree and radian angles. Contemporary houses often have flat roofs which shouldn t be completely flat but should be around 1 40. Most roof s have a pitch in the 4 12 to 9 12 range. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72.

In the uk the typical house has a pitch between 40 50 although 45 should be avoided. Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. 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.

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. 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. 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. The following diagram will let you easily convert roof pitch to degrees.

Look at the column labeled pitch then look under degrees to get the corresponding amount of degrees. Determine its angle through taking a 12 inch level and. Identify the rise and run. The combination of two numbers are used to display or show the roof pitch.

In the usa the range of standard pitches is anywhere between 4 12 and 9 12. The rise will be equal to the amount of the incline within the given distance or the run that. 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 angle in degrees to rise in run.

Roof pitch to degrees equivalents this drawing demonstrates how many degrees rise for each pitch of a typical roof. A 7 12 pitch equals 30 26 degrees. Locate its tangent or tan and follow the left row for you to read its corresponding degree.