Dictionary

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Click one of the letters above to be taken to a page of all terms beginning with that letter.
h
Head lap

According to ASTMi it is the shortest distance from the butt edge of an overlapping shingle to the upper edge of the shingle two courses below it. It is the "triple coverage" portion of the strip shingle (designed to be minimum 2" in length).

Hip Roof

A roof having sloping ends, thus four sloping sides. The line where adjacent sloping sides meet is called a hip.

Hot Stuff or Hot

The roofer's term for hot bitumen.