4 12 is quite typical.
Roof pitch options.
This is one of the rare pitches where the numerator is greater than the denominator with a slope as high as 18 12.
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.
A 3 12 roof pitch angle is about 14 so on and so forth.
This pitch might be as low as 1 12.
Anything under 3 12 is a low pitch roof.
The most commonly used roof pitches fall in a range between 4 12 and 9 12.
First of all they require less material and therefore cost less.
Anything above 6 12 is a steep roof pitch since it becomes harder to walk on the roof.
Finally a higher pitched roof is more visible something you should consider when deciding between a painted or galvalume roof for more on color choices see the panel options section.
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.
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.
Pitches above 9 12 are very highly angled and are designated steep slope roofs.
Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs.
Think of a classic addams family haunted house with its soaring peaks and you have a picture of a high pitched roof.
Low pitched roofs also have some definite advantages in certain situations.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.