Roof Pitch Slope Factor Chart

A 10 slope roof should not be confused with a 10 pitch roof as a 10 slope roof means that the roof rises by ten inches for every foot of run.

Roof pitch slope factor chart.

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. The minimum roof pitch for shedding snow is around 30 or a 6 12 or 7 12 slope although this is not a definite as the material of your roof the direction of the snow and wind are some factors that can affect whether or not snow will slide as roofs of as little as 10 have been reported to shed snow. 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 combination of two numbers are used to display or show the roof pitch. The roof slope factor chart also consists of conversion factors to determine the slope of the roof. Slope factor chart know your pitch when outfitting your residential or commercial structure with roofing materials from everlast roofing inc it s important to know the incline or pitch of your roof. Divide the rise by the run the run is 12.