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9 Best Of How To Figure A Pitch Of A Roof Best Wallpaper JPG. From the Pythagorean theorem. This is the amount your roof inclines in a 1-foot span or the pitch of your roof.
Jan 04 2002 To measure the roof pitch youll need an 18- or 24-inch level a tape measure and a pencil. On the roof hold the level perfectly level and measure the height from the roof to the level 12 inches away from where the level touches the surface. Roof pitch is the measurement of a roofs vertical rise divided by its horizontal run.
Pitch - Is the incline of the roof represented as the ratio of rise to the span twice the run.
Place the end of your level the 0 inch point of your 12 marking against the roof surface. This is the amount your roof inclines in a 1-foot span or the pitch of your roof. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. From the Pythagorean theorem.
