Standard House Roof Pitch

One engineer recommends a 12 12 pitch for the new roof while another recommends a 7 12 pitch.

Standard house roof pitch.

Pitches above 9 12 are very highly angled and are designated steep slope roofs. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Roof pitches exceeding the level of 9 12 or approximately 37 degrees are termed steep slope roofs. There is no standard universal roof pitch.

The exact roof slope in degrees is given by the arctangent. Gable roofs offer the advantages of easily shedding rain and snow in cold climates. With regards to the pitch the building standard code bs 5534 recommends a minimum pitch of 20 0 for slate roofs. In degrees 10 2 in 12 or 1 in 6 is considered a minimum.

Roof pitches can be as high as 12 12 according to the mhimperialhome website. Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled. Some of the most common roof pitch types are conventional slope type roofs designed with pitch ranging from 4 12 to 9 12. But since there is still a wide variety of slate roofing systems there are occasions when the minimum pitch can go down to as low as 15 0 depending on the uniqueness of the roof.

Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow. In the uk the typical house has a pitch between 40 50 although 45 should be avoided. The most commonly used roof pitches fall in a range between 4 12 and 9 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.

What is the standard pitch for a roof. Gable roofs on ranch style homes can have a variety of pitches from low to steep. Contemporary houses often have flat roofs which shouldn t be completely flat but should be around 1 40. Roof pitch varies depending on culture climate style and available materials.

The table below shows common roof pitches and the equivalent grade degrees and radians for each. The vertical rise of the top chord per 12 horizontal inches is the roof pitch or slope. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases. Definitions vary on when a roof is considered pitched.

The ibhs recommends a 4 to 6 pitch roof. For example 4 12 pitch means 4 inches of rise in 12 inches of run. This is for the top level of a 3 story building that is 26 by 64. These are utilized in residential applications.

In the usa the range of standard pitches is anywhere between 4 12 and 9 12. Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs.