How Much Pitch On 12 Foot Roof

8 inches and you have an 8 in 12 pitch.
How much pitch on 12 foot roof. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. 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. This is for the top level of a 3 story building that is 26 by 64. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
The minimum pitch for roll roofing is 2 12 or 2 inches rise to 12 inches run. In roofing it is expressed in inches of vertical rise over inches of horizontal run. The minimum pitch for a standing seam metal roof is 1 4 or 3 inches rise to 12 inches run. A 4 12 pitch being 4 inches of vertical rise over one foot or 12 inches of horizontal run.
There are advantages and disadvantages to having a steep pitch versus a shallow or low pitch the most obvious of which is the roof s ability to shed or withstand heavy snow rain or wind. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. The ibhs recommends a 4 to 6 pitch roof. One engineer recommends a 12 12 pitch for the new roof while another recommends a 7 12 pitch.