Roof Slope: Drawing & Conversion Tables
by John F Mann, PE
Click on link at left to download drawing (below) showing basic terms for calculating roof slope.
Information about how to measure slope or "pitch" of a roof is provided in the following article;
Click on link at left to download tables (shown below) for roof slope conversion;
Convert Rise (per 12 inches of Run) to Slope Angle
Convert Slope Angle to Rise (per 12 inches of Run)