Typical Gable Roof Pitch

Most roof s have a pitch in the 4 12 to 9 12 range.

Typical gable roof 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. Contemporary houses often have flat roofs which shouldn. Usually average roof pitch is determined using the same roof length method. What is the standard pitch for a roof.

However rise over run is more efficient and easier to understand for the average diyer. Buffalo new york and montreal quebec canada specify 6 in 12 a pitch of approximately 26 6 degrees. Commonly it is 3 4 th of span as per gothic rafter must be equal to span. Roof pitch degree table.

Carpenters frame rafters on an angle to pitch a roof. There are some standing seam metal roofing options available from atas and other manufacturers that can be installed on a roof with pitch of 1 12. Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled. The most commonly used roof pitches fall in a range between 4 12 and 9 12.

Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs. You can also divide the rise over run multiply by 100 and get a percentage. Common roof pitches and equivalent grade degree and radian angles. Pitches above 9 12 are very highly angled and are designated steep slope roofs.

The high steeply pitched gabled roofs of northern europe are typical in regions of heavy snowfall. Greek says one must keep rafter length in range of 1 9 to 1 7 th of span but as per roman style the standard dimensions are kept about 1 3 to 2 9 th of span with an angle of 23 to 24 degree. There is no standard universal roof pitch 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. So you would need to pick the right option as most regular standing seam metal roofs will require a roof pitch of 2 12 or even 3 12 at a minimum.

In some areas building codes require a minimum slope. So you ve either got to give up on a metal roof and go to a membrane roof like epdm or make your new roof have a 3 12 or probably 4 12 slope. Thus a 4 12 pitch would be a 33 slope.