Chapter 7 Flashcards
Fire resistance rating
A rating given to a building that indicates the resistance of the building to collapse or total involvement in a fire.
Frame construction
A class of construction that has load-bearing components made of wood or other combustible materials such as brick or stone veneer.
Joisted masonry construction
A class of construction that has load-bearing exterior walls made of brick, adobe, concrete, gypsum, stone, tile, or similar materials; that has floors and roofs of combustible materials; and that has a fire-resistant rating of at least one hour.
Noncombustible
An ISO combustibility of classification for occupancies with merchandise or materials that do not in themselves constitute an active fuel for the spread of fire.
Masonry noncombustible construction
Masonry construction or construction that includes exterior walls of fire-resistant construction with a fire-resistant rating of not less than one hour.
Modified fire-resistive construction
A class of construction that has exterior walls, floors, and roofs of masonry or other fire-resistive materials with a fire-resistance rating of 1 to 2 hours.
Fire-resistive construction
A class of construction that has exterior walls, floors, and roofs of masonry or other fire-resistive materials with a fire-resistance rating of at least two hours.
Wet pipe sprinkler systems
Automatic fire sprinkler systems with pipes that always contain water under pressure, which is released immediately when a sprinkler head opens.
Dry pipe sprinkler system
Automatic fire sprinkler systems with pipes that contain compressed air or another inert gas that holds a valve in the water line shut until an open sprinkler head releases the gas and allows water to flow through the previously dry pipe to the sprinkler head.
Deluge system
A type of sprinkler system in which all the heads remain permanently open; when activated by a detection system, a deluge valve allows water into the system.
Halogenated agent extinguishing system
An automatic fire sprinkler system in which halocarbons are used to disrupt the chemical reaction of fire; commonly used in computer rooms and magnetic-tape storage vaults.
Dry chemical system
A type of fire suppression system in which finely divided powders are distributed through pipes to nozzles positioned to allow for full distribution over the fire exposure area.
Foam system
A chemical foam system that is used in outside areas to smother a fire.
Carbon dioxide system
A type of fire suppression system in which carbon dioxide is stored as a liquid under pressure and is discharged as a gas through the pipes of the system to the fire site.
Framing
The structural members that form of the skeleton of a building.
Joist
A horizontal timber to which either the floor or ceiling is attached.
Bridging
A short piece of bracing that is inserted laterally between joists.
Pitch
The angle of the roof.
Load-bearing wall
A wall that runs at a right angle to the joists and bears the weight of the structure.
Rough in
To installed the plumbing and electrical wiring that will ultimately be concealed within the walls and ceiling.
Overhead
The fixed cost to run a business.
Cutting and fitting waist
The amount of material that is left over after cutting and fitting to size for repair.
Milling waste
The difference between the actual size and the normal size of a piece of material.
Nominal size
The size of a piece of lumber before it is surfaced or finished.
Employer’s burden
The difference between the worker’s wage and contractor’s hourly rate; includes costs such as taxable and nontaxable benefits, unemployment tax, Social Security tax, and insurance costs.
Labor and materials method
An estimating method based on the number of labor hours and the amount of material for each repair item.
Unit cost method
An estimating method based on a common unit of measure such as square feet, which combines the cost of the materials and the cost of the labor into one amount.
