Roof pitch varies depending on culture climate style and available materials.
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.
Often you express roof pitch as the ratio between the rise and the run in the form of x 12.
Roof pitch refers to the slope which the rafter creates.
Common roof pitches and equivalent grade degree and radian angles.
Historically roof pitch was designated in two other ways.
In the uk the typical house has a pitch between 40 50 although 45 should be avoided.
Roof pitch degree table.
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.
Roof pitch slope roof angle degree 1 12 pitch.
There is no standard universal roof pitch.
Most roof s have a pitch in the 4 12 to 9 12 range.
In the usa the range of standard pitches is anywhere between 4 12 and 9 12.
The ridge height is 1 9 to 1 7th the span an angle of 12 5 to 16.