12 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.
12 degree roof pitch options. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. To convert between american roofing ratios and pitch degrees follow these steps. 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.
The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. There are some standing seam metal roofing options available from atas and other manufacturers that can be installed on a roof with pitch of 1 12. Anything under 3 12 is a low 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.
What degree angle is a 12 12 pitch 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. If you want to discuss other low roof pitch options you can contact a local professional roofer.
Pitch is the term used to describe the angle slope or slant of your roof. Divide the first part of the ratio by 12 to work out the pitch. 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. 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.
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. So you would need to pick the right option as most regular standing seam metal roofs will require a roof pitch of 2 12 or even 3 12 at a minimum. Most roof s have a pitch in the 4 12 to 9 12 range. Roof pitch defined and explained.
A 12 12 pitch roof has a pitch angle of 45. 4 12 is quite typical. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Anything above 6 12 is a steep roof pitch since it becomes harder to walk on the roof.
A 3 12 roof pitch angle is about 14 so on and so forth.