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Roofing Glossary: C

Roofing terms that begin with ‘C’

Our roofing glossary defines common roofing terms. Please let us know if we are missing any words!

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Closed Cut Valley
A shingle valley installation method where one roof plane’s shingles completely cover the other’s. The top layer is cut to match the valley lines.

Coating
A layer of viscous asphalt applied to the base material into which granules or other surfacing is embedded.

Cobra
GAFMC’s respected brand name for ventilation products.

Collar
A pre-formed flange placed over a vent pipe to seal the roof around the vent pipe opening. Also called a vent sleeve.

Counter Flashing
The metal or siding material that is installed over roof-top base flashing systems.

Country Mansion
GAFMC’s limited lifetime warranty shingle.

Course
A row of shingles or roll roofing running the length of the roof.

Crickets
A peaked water diverter installed behind chimneys and other large roof projections. Effectively diverts water around projections.

Cupping
When shingles are improperly installed over an existing roof or are over-exposed, they may form a curl or cup. May also be due to a manufacturing defect.

Cutout
The open portions of a strip shingle between the tabs.