15 Degree Roof Slope

A 12 12 pitch roof has a pitch angle of 45.

15 degree roof slope.

Lower slopes don t handle wind driven rain as well. Find the inverse tangent of the pitch to find the angle in degrees. 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. Although there s isn t any standard pitch of a roof used on all kinds of sloped roofs you can determine the range of pitches by using a roof angle calculator and by considering factors like the local climate and roofing materials.

A 30 degree roof slope 7 12 pitch is the right pitch to aerodynamically handle high wind. What degree angle is a 12 12 pitch roof. The 30 degree 7 12 roof recommendation is backed up by testing according to the publication science daily. But with the use of a roof pitch in degrees converter you will be able to get the correct measurement.

With the use of this converter it will be easier for you to locate a 30 degree roof pitch 20 degree roof pitch 25 degree roof pitch or a 15 degree roof pitch. Divide the first part of the ratio by 12 to work out the pitch. 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 measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

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. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. To convert between american roofing ratios and pitch degrees follow these steps.

Steeper slopes increase the sail effect that makes them susceptible to wind.