15 Degree Roof Slope

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.

15 degree roof slope.

A 12 12 pitch roof has a pitch angle of 45. What degree angle is a 12 12 pitch roof. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. To convert between american roofing ratios and pitch degrees follow these steps.

Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. Divide the first part of the ratio by 12 to work out the pitch. The 30 degree 7 12 roof recommendation is backed up by testing according to the publication science daily. A 30 degree roof slope 7 12 pitch is the right pitch to aerodynamically handle high wind.

But with the use of a roof pitch in degrees converter you will be able to get the correct measurement. Steeper slopes increase the sail effect that makes them susceptible to wind. 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. 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 table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. 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. 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. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees.

Find the inverse tangent of the pitch to find the angle in degrees.