This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
Ranch house roof pitch.
Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs.
Both could be called a ranch house.
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.
Your average house just looks awkward with a roof this shallow.
Usually average roof pitch is determined using the same roof length method.
Hipped roofs are also common which offer a slightly different design and lower pitch.
Compare these next two houses.
Gable roofs on ranch style homes can have a variety of pitches from low to steep.
Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled.
The one on the bottom has a roof pitch of 3 4.
They are very similar in their layout.
Roof pitches can be as high as 12 12 according to the mhimperialhome website.
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.