11 Best Of How To Determine Pitch Of Existing Roof Free Download. Roof pitch refers to the slope which the rafter creates. Youll need a level that is 12 or longer and a tape measure.
Pitch - Is the incline of the roof represented as the ratio of rise to the span twice the run. Align the 12-inch mark on the long leg at the lower edge of a rafter. Hold the level straight and level bubble centered and then measure the vertical distance down from the your 12 mark on the level down to the roof.
If you want to find the roof pitch in the form of x12 simply calculate the pitch and substitute 12 for the run.
Hold the level straight and level bubble centered and then measure the vertical distance down from the your 12 mark on the level down to the roof. Outside of the US a degree angle is typically used. Roof Pitch Degree Table. In the United States a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.