If you want to find the roof pitch in the form of x 12 simply calculate the pitch and substitute 12 for the run length.
2 roof pitch in degrees.
Select inches to enter decimal inches or millimeters for metric.
Determine its angle through taking a 12 inch level and.
Pitch tan angle where angle is the roof pitch expressed in degrees.
In degrees 10 2 in 12 or 1 in 6 is considered a minimum.
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.
To see what the degree equivalents are for standard rise in run roof pitches see our page quick reference.
Roof pitch angle in degrees.
The measurements are taken from the bottom of the rafters the procedure to calculate roof pitch is the same.
Set bevel gauge directly from phone or tablet screen.
The table below shows common roof pitches and the equivalent grade degrees and radians for each.
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.
Enter base length to calculate rise and diagonal for current pitch angle.
Identify the rise and run.
Roof angles and rafter plumb cuts.
This method tends to be more accurate because no layers of roofing are involved.
To use this method there are 3 possible places to take your measurements.
How roof pitch manifests itself in various roof types.
Definitions vary on when a roof is considered pitched.
Divide its rise by run in.
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 pitch 45 degrees 11 pitch 42 5 degrees 10 pitch 40 degrees 9 pitch 37 degrees 8 pitch 33 75 degrees 7 pitch 30 5 degrees 6 pitch 26 5 degrees 5 pitch 22 5 degrees 4 pitch 18 5 degrees 3 pitch 14 degrees 2 pitch 9 5 degrees 1 pitch 4 5 degrees 0 pitch 0 degrees.
The value displayed as the rise will be your x.
Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
Visit this page on your phone to directly measure pitch and angles.
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.
This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees.
Roof slope expressed as rise.
Locate its tangent or tan and follow the left row for you to read its corresponding degree.
The combination of two numbers are used to display or show the roof pitch.
The rise will be equal to the amount of the incline within the given distance or the run that.
The exact roof slope in degrees is given by the arctangent.