| The roof pitch (rp) is a ratio of the vertical travel and horizontal travel of a roof slope. The roof slope of 8-12 can also be state as 8:12 which would equal a roof pitch of .66, or more commonly know as a one third (1/3) pitch roof. This comes from the fact that 24 is used as a base reference to measure roof pitch. A 6-12 roof is called a 1/4 pitch, an 8-12 a 1/3 pitch and a 12-12 is a 1/2 pitch roof. |
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