Anything above 6 12 is a steep roof pitch since it becomes harder to walk on the roof.
12 degree roof pitch options.
What degree angle is a 12 12 pitch roof.
This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees.
The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.
The table below shows common roof pitches and the equivalent grade degrees and radians for each.
Most roof s have a pitch in the 4 12 to 9 12 range.
A 3 12 roof pitch angle is about 14 so on and so forth.
Pitch is the term used to describe the angle slope or slant of your roof.
To convert between american roofing ratios and pitch degrees follow these steps.
You could also opt for a pvc flat roofing membrane.
Roof pitch defined and explained.
Or the colon can replace the slash as in 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.
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.
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.
Roof pitch designations are comprised of two numbers indicating a ratio.
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.
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.
A 12 12 pitch roof has a pitch angle of 45.
Divide the first part of the ratio by 12 to work out the pitch.
Find the inverse tangent of the pitch to find the angle in degrees.
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.
However if you to do the process using your own knowledge you can still convert pitch to degrees by dividing the rise and run and get its corresponding measurement.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
If you want to discuss other low roof pitch options you can contact a local professional roofer.
Anything under 3 12 is a low pitch roof.