Roof pitches can be as high as 12 12 according to the mhimperialhome website.
Ranch house roof pitch.
The one on the bottom has a roof pitch of 3 4.
Usually average roof pitch is determined using the same roof length method.
Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled.
Pitches above 9 12 are very highly angled and are designated steep slope roofs.
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.
The one on top has a roof pitch of 1 2.
Commonly it is 3 4 th of span as per gothic rafter must be equal to span.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
Your average house just looks awkward with a roof this shallow.
The most commonly used roof pitches fall in a range between 4 12 and 9 12.
Both could be called a ranch house.
Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs.
The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.
Hipped roofs are also common which offer a slightly different design and lower pitch.
Gable roofs offer the advantages of easily shedding rain and snow in cold climates.