The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72.
Roof slope 30 degrees.
A 30 degree roof slope 7 12 pitch is the right pitch to aerodynamically handle high wind.
Many different professions use slope in describing an angle.
Degrees tan 1 43 calculated out this gives an angle of 23 27 degrees.
45 this is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations.
For example in construction you may refer to the pitch of a roof or the grade of a slab.
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.
Lower slopes don t handle wind driven rain as well.
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 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.
Enter any pitch or fraction of pitch to find angle.
See below after the table for directions on how to convert any roof slope from one form to another even roof slopes not shown in the table.
Enter any angle or fraction of angle to find pitch.
Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio.
Steeper slopes increase the sail effect that makes them susceptible to wind.
Another option that is available for you in finding the pitch factor for your roof is to find roof pitch calculator online.
Both are referring to angles.
The table below shows common roof pitches and the equivalent grade degrees and radians for each.
Roof pitch to degrees equivalents.
Degrees to roof pitch rise in run to see a table.
7 12 30 26 1 1577 8 12 33 69 1 2019 9 12 36 37 1 2500 10 12 39 81 1 3017 11 12 42 51 1 3566 12 12 45 00 1 4142.
The minimum roof pitch for shedding snow is around 30 or a 6 12 or 7 12 slope although this is not a definite as the material of your roof the direction of the snow and wind are some factors that can affect whether or not snow will slide as roofs of as little as 10 have been reported to shed snow.
Sometimes slope is referred to as pitch angle rise incline or grade.
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 following table shows how the same common roof slopes can be expressed using rise in run ratios degrees and percentages.
Also see our page quick reference.
