How to Measure Heel Height


Other than Roof Pitch and Span, the most importand measurement need to match an existing roof is called the heel height.

Simply, it is the "thickness" of the truss or rafter measured from the outside of the wall from the top of the top plate to the underside of the sheathing.

Below are two diagrams to help illustrate the point.

Truss Heel Height

Birdsmouth Detail Standard Stick Frame Overhang