2 Degree Roof Pitch

Most roof s have a pitch in the 4 12 to 9 12 range.
2 degree roof pitch. Or the colon can replace the slash as in 2 12 or 7 12. 7 degrees is 1 1 2 rise in one foot. 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. 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. The table below shows common roof pitches and the equivalent grade degrees and radians for each. Enter run the flat level length then click pitch angle or rise to select then enter other known dimension angle or pitch. How much fall in a 2 degree foor over 3 9 mts.
Roof pitch designations are comprised of two numbers indicating a ratio. A 30 degree roof slope 7 12 pitch is the right pitch to aerodynamically handle high wind. To find the slope or fall of a ball or other object that is at an angle of 2 degrees for over 3 9 minutes you. The triangle diagram will be re drawn to scale with all dimensions marked.
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. Steeper slopes increase the sail effect that makes them susceptible to wind. 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 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. The 30 degree 7 12 roof recommendation is backed up by testing according to the publication science daily. To convert between american roofing ratios and pitch degrees follow these steps.
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. Drag sliders to animate the results and diagram. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.
Divide the first part of the ratio by 12 to work out the pitch. 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.