What is Cricket?
A small ridge built behind a chimney on the upslope side of the roof to direct water around the chimney rather than pooling against it. IRC R1003.20 requires crickets for chimneys over 30" wide.
Related terms:FlashingRoof
All glossary terms
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Other terms in the glossary
Creosote
Tar-like residue from incomplete wood combustion. Highly flammable.
NFPA 211
The US standard for chimney, fireplace, and vent system installation.
Inspection Levels
Level 1 (annual), Level 2 (sale/event), Level 3 (concealed damage).
Flue
The internal passage that carries combustion gases up and out.
Liner
Inner channel of the flue — clay tile, stainless steel, or cast-in-place.
Crown
The concrete cap at the very top of a masonry chimney.
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