Glossary

An opening in the floor of a fireplace or firebox through which ashes are swept to an ashpit below.

A brick whose face has been hacked to resemble roughly hacked stone.

Fine, flexible, noncombustible, inorganic fiber obtained from natural hydrous magnesium silicate; can withstand high temperatures without change; a poor heat

A dense, rigid, board containing a high proportion of asbestos fibers bonded with portland cement; resistant to fire, flame, and

Asbestos-cement board and component wall systems, directly supported by wall framing, forming a wall or wall facing.