Definition of the term Fire Wall
Any wall built for the purpose of restricting or preventing the spread of fire in a building. Such walls of solid masonry or concrete generally sub-divide a building from the…
Definition of the term Masonry Primer
An asphalt-based primer used to prepare masonry surfaces for bonding with other asphalt products.
Definition of the term Rise
In stairs, the vertical height of a step or flight of stairs.
Definition of the term Underlayment
A material placed under finish coverings, such as flooring, or shingles, to provide a smooth, even surface for applying the finish.
Definition of the term Air Filters
Adhesive filters made of metal or various fibers that are coated with an adhesive liquid to which particles of lint and dust adhere. These filters will remove as much as…
Definition of the term Combustion Air
The duct work installed to bring fresh, outside air to the furnace and/or hot water heater. Normally 2 separate supplies of air are brought in
Definition of the term Fire-Resistive
In the absence of a specific ruling by the authority having jurisdiction, applies to materials for construction not combustible in the temperatures of ordinary fires and that will withstand such…
Definition of the term Mastic
Heavy-consistency compound that may remain adhesive and pliable with age. Is typically a waterproof compound applied to exterior walls and roof surfaces.
Definition of the term Riser
Each of the vertical boards closing the spaces between the treads of stairways.
Definition of the term Union
A plumbing fitting that joins pipes end-to-end so they can be dismantled.