Pitch Of A Roof Angle

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.

Pitch of a roof angle. There is no standard universal roof pitch. Most roof s have a pitch in the 4 12 to 9 12 range. 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. Roof pitch slope roof angle degree 1 12 pitch.

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. Roof pitch varies depending on culture climate style and available materials. In the usa the range of standard pitches is anywhere between 4 12 and 9 12. In the uk the typical house has a pitch between 40 50 although 45 should be avoided.

Common roof pitches and equivalent grade degree and radian angles. Roof pitch degree table. Contemporary houses often have flat roofs which shouldn t be completely flat but should be around 1 40. Roof pitch refers to the slope which the rafter creates.

Often you express roof pitch as the ratio between the rise and the run in the form of x 12.