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How to measure roof pitch, rise, run, angle, slope.

Hold level horizontally

Measure 12" from point of roof contact.

Place one end of the level on the roof. Holding the level horizontally even, measure 12" from the point of contact with the roof. At the 12" point measure from the roof vertically to the level and that is the roof rise. In the example below the roof pitch is 7 or 7/12.

 

                                                  Point of roof contact below

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