Pitch Of A Roof Angle

There is no standard universal roof pitch.

Pitch of a roof angle.

Historically roof pitch was designated in two other ways. Often you express roof pitch as the ratio between the rise and the run in the form of x 12. 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. 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.

In the uk the typical house has a pitch between 40 50 although 45 should be avoided. Roof pitch varies depending on culture climate style and available materials. Commonly used roof pitches were given names such as greek. Roof pitch degree table.

Contemporary houses often have flat roofs which shouldn t be completely flat but should be around 1 40. Common roof pitches and equivalent grade degree and radian angles. Roof pitch slope roof angle degree 1 12 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.