How Much Pitch On 12 Foot Roof

If this distance measures 4 inches you have a 4 in 12 pitch.

How much pitch on 12 foot roof.

On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. 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.

The ibhs recommends a 4 to 6 pitch roof. 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. A 4 12 pitch being 4 inches of vertical rise over one foot or 12 inches of horizontal run.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. One engineer recommends a 12 12 pitch for the new roof while another recommends a 7 12 pitch. 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. The minimum pitch for a standing seam metal roof is 1 4 or 3 inches rise to 12 inches run.