1 Degree Roof Pitch

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.

1 degree roof 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. Enter run the flat level length then click pitch angle or rise to select then enter other known dimension angle or pitch. Lower slopes don t handle wind driven rain as well.

A 30 degree roof slope 7 12 pitch is the right pitch to aerodynamically handle high wind. Steeper slopes increase the sail effect that makes them susceptible to wind. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. The 30 degree 7 12 roof recommendation is backed up by testing according to the publication science daily.

Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. Pitch is the term used to describe the angle slope or slant of your roof. Find the inverse tangent of the pitch to find the angle in degrees. Or the colon can replace the slash as in 2 12 or 7 12.

How to convert roof pitch in degrees converting this mathematical formula is not that easy especially if you don t have a lot of skill when it comes to math. To convert between american roofing ratios and pitch degrees follow these steps. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72.

The triangle diagram will be re drawn to scale with all dimensions marked. Low slope roofing needs special techniques and materials in order to avoid leaks and roof damage and it ranges from 1 12 4 12. What degree angle is a 12 12 pitch roof. Roof pitch defined and explained.

The table below shows common roof pitches and the equivalent grade degrees and radians for each. Roof pitch designations are comprised of two numbers indicating a ratio. 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 12 12 pitch roof has a pitch angle of 45.

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.