15 Degree Roof Pitch Options

Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio.

15 degree roof pitch options. The table below shows common roof pitches and the equivalent grade degrees and radians for each. To put it in perspective the angle of this slope would be around 30 degrees. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. 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.

What degree angle is a 12 12 pitch roof. A 30 degree roof slope 7 12 pitch is the right pitch to aerodynamically handle high wind. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. Divide the first part of the ratio by 12 to work out the pitch.

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. An example for a steep sloped roof is 8 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. The 30 degree 7 12 roof recommendation is backed up by testing according to the publication science daily.

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. This means that the rise of the slope goes up or down 8 inches for every 12 inches. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. But with the use of a roof pitch in degrees converter you will be able to get the correct measurement.

Lower slopes don t handle wind driven rain as well. A 12 12 pitch roof has a pitch angle of 45. To convert between american roofing ratios and pitch degrees follow these steps. All of our products are offered competitive prices.

Steeper slopes increase the sail effect that makes them susceptible to wind. Find the inverse tangent of the pitch to find the angle in degrees. The slope of a roof or pitch is determined by how many inches the roof rises over 1 foot or 12 inches.