Chimney words, explained
Plain English for the words you hear on a chimney visit.
C
Chimney Cap
A cover on top of the chimney to prevent rain, debris, and animals from entering.
Chimney Crown
The topmost part of a chimney, providing a protective cover over the bricks.
Chimney Flashing
Metal strips that seal the joint between the chimney and roof to prevent leaks.
Chimney Liner
A lining inside the chimney that protects the masonry from heat and corrosion.
Creosote
A combustible byproduct from burning wood that can build up on chimney walls.
D
Damper
A device in the chimney used to control airflow and smoke escape.
E
Efflorescence
White, chalky stains on masonry caused by water evaporation.
F
Firebox
The area of the fireplace where firewood or fuel is burned.
Flue
The passageway in the chimney that directs smoke outside.
M
Masonry
Brick, stone, and mortar construction typically used in chimney structures.
Mortar
A mixture used to bond bricks together and seal joints.
R
Repointing
Replacing old or damaged mortar between bricks.
S
Smoke Chamber
The area above the fireplace where smoke is gathered before exiting through the chimney.
Soot
Black carbon residue from burning that can accumulate in chimneys.
Spalling
Chipping or crumbling of brick or stone surfaces, often due to moisture.
W
Waterproofing
A treatment applied to chimney exteriors to prevent water penetration.
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