15 Degree Roof Pitch Options

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.

15 degree roof pitch options.

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. Browse our range of low pitched roof tiles and slates that can be used at a maximum pitch of 15 degrees. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. An example for a steep sloped roof is 8 12.

This means that the rise of the slope goes up or down 8 inches for every 12 inches. 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. What degree angle is a 12 12 pitch roof. 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. 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.

Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. Steeper slopes increase the sail effect that makes them susceptible to wind. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. Find the inverse tangent of the pitch to find the angle in degrees. 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.

To convert between american roofing ratios and pitch degrees follow these steps. To put it in perspective the angle of this slope would be around 30 degrees. All of our products are offered competitive prices.