Pitch Of A Roof Angle

In the usa the range of standard pitches is anywhere between 4 12 and 9 12.

Pitch of a roof angle.

Common roof pitches and equivalent grade degree and radian angles. Roof pitch varies depending on culture climate style and available materials. Roof pitch degree table. Historically roof pitch was designated in two other ways.

Commonly used roof pitches were given names such as greek. Most roof s have a pitch in the 4 12 to 9 12 range. In the uk the typical house has a pitch between 40 50 although 45 should be avoided. The ridge height is 1 9 to 1 7th the span an angle of 12 5 to 16.

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. 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.

Roof pitch slope roof angle degree 1 12 pitch.