Appendix C - Glossary
- adhesives (glue)
- substance applied to one or both surfaces of two separate items that binds them together and resists their separation
- barrier
- a component that prevents movement or access of fire, smoke, heat/cold, moisture, sound, radiation, dust, light, people and animals
- bulkhead
- an assembly that forms a change in the ceiling elevation; can be decorative or functional
- carrying channel
- a main support member for other components
- caulking
- filler and sealant used in building work and repairs for the purpose of blocking sound, smoke, fire and water transmission
- core board
- fire-rated board used in shaft wall assemblies
- corner bead
- a trim to guide a trowel to form a uniform corner; it can be made from metal, vinyl or paper
- fireproofing
- application of a fire-resistant material directly or indirectly to protect structural members from fire damage
- furring channel (hat track, strapping)
- framing member used to space lath or gypsum board from any surface member over which it is applied
- gas-actuated tools
- tools that are powered by gas and ignited by electrical charge
- hanger
- vertical tensile member that carries the steel framework of a suspended ceiling
- jig
- manufactured or job-built assembly used to guide tools or hold materials for repetitive operations
- lath
- wood, gypsum or metal backing for plaster
- lead radiation shielding
- material used to stop radiation and reduce sound exposure
- loadbearing members
- building components that support both live and dead loads
- membrane
- continuous barrier used to resist the flow of vapour, air and water
- non-suspended ceiling
- a ceiling finish applied directly to a solid unsuspended substrate
- pedestal
- main support component of an access flooring system
- rainscreen
- cavity between substrate and cladding to allow water and moisture to escape
- security mesh
- steel mesh used to prevent unauthorized access
- shaft wall
- assembly used to protect stairwells, ducts and elevator shafts from fire
- sheathing
- sheet material that covers the exterior of a building’s frame
- soffit
- exterior horizontal ceiling
- substrate
- underlying surface
- suspended ceiling
- a ceiling that is supported intermediately from building structure such as concrete slab and steel decking
- template
- temporary pattern created to assist in fabrication
- track (plate or runners)
- material used at the top and bottom of walls and perimeter of ceilings to fasten supports