Roof pitch degree table.
Pitch of a roof angle.
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.
Common roof pitches and equivalent grade degree and radian angles.
Historically roof pitch was designated in two other ways.
The ridge height is 1 9 to 1 7th the span an angle of 12 5 to 16.
Most roof s have a pitch in the 4 12 to 9 12 range.
Roof pitch slope roof angle degree 1 12 pitch.
You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof.
Contemporary houses often have flat roofs which shouldn t be completely flat but should be around 1 40.
A ratio of the ridge height to the width of the building span and as a ratio of the rafter length to the width of the building.
Commonly used roof pitches were given names such as greek.
There is no standard universal roof pitch.
In the usa the range of standard pitches is anywhere between 4 12 and 9 12.
Often you express roof pitch as the ratio between the rise and the run in the form of x 12.