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ABS  look up translate image
A type of black plastic pipe commonly used for waste water lines.
AGGREGATE  look up translate image
Crushed rock or stone.
AIR CHAMBER  look up translate image
A vertical, air filled pipe that prevents water hammer by absorbing pressure when water is shut off at a faucet or valve.
AIR-CONDITIONER CONDENSER  look up translate image
The outside fan unit of the air conditioning system. The condenser discharges heat to the building exterior.
ALLIGATORING  look up translate image
Coarse checking pattern on the surface of a material. Typically caused by ageing, exposure to sun and/or loss of volatiles.
AMPACITY  look up translate image
Refers to the how much current a wire can safely carry. For example, a 12-gauge electrical copper wire can safely carry up to 20 amps.
ASPHALT  look up translate image
A bituminous material employed in roofing and road paving materials because of its waterproofing ability.
BACKFILL  look up translate image
The replacement of excavated earth into a trench or pit.
BACKFLOW  look up translate image
A reverse flow of water or other liquids into the water supply pipes, caused by negative pressure in the pipes
BALLAST  look up translate image
A transformer that steps up the voltage in a florescent lamp.
BALUSTERS  look up translate image
Vertical members in a railing used between a top rail and bottom rail or the stair treads. Sometimes referred to as pickets or spindles.
BASE SHEET  look up translate image
Bottom layer of built-up roofing.
BATT  look up translate image
A section of fiberglass or rock-wool insulation.
BAY WINDOW  look up translate image
Any window space projecting outward from the walls of a building, either square or polygonal in plan.
BEAM  look up translate image
A structural member transversely supporting a load. A structural member carrying building loads (weight) from one support to another. Sometimes called a girder.
BEARING WALL  look up translate image
A wall that supports any vertical load in addition to its own weight.
BIRDS-MOUTH CUT  look up translate image
A cutout in a rafter where it crosses the top plate of the wall providing a bearing surface for nailing. Also called a heel cut.
BITUMEN  look up translate image
Term commonly applied to various mixtures of naturally occurring solid or liquid hydrocarbons, excluding coal. These substances are described as bituminous. Asphalt is a bitumen. See Asphalt.
BLOCKING  look up translate image
Small wood pieces to brace framing members or to provide a nailing base for gypsum board or paneling.
BOARD AND BATTEN  look up translate image
A method of siding in which the joints between vertically placed boards or plywood are covered by narrow strips of wood.
BOTTOM CHORD  look up translate image
The lower or bottom horizontal member of a truss.
BRICK TIE  look up translate image
Metal strips or wires that are inserted into the mortar joints of the brick veneer. Ties hold the veneer wall to the backer wall behind it.
BRICK VENEER  look up translate image
A vertical facing of brick used to clad a building. Brick veneer is not a load-bearing component. Read More...
BUILDING PAPER  look up translate image
A general term for papers, felts and similar sheet materials used in buildings without reference to their properties or uses. Generally comes in long rolls.
BUILT-UP ROOF  look up translate image
A roofing composed of three to five layers of asphalt felt laminated with coal tar, pitch or asphalt. The top is finished with crushed slag or gravel. Generally used on flat or low-pitched roofs.
BUTT JOINT  look up translate image
The junction where the ends of building materials meet. To place materials end-to-end or end-to-edge without overlapping.
CANT STRIP  look up translate image
A triangular shaped piece of lumber used at the junction of a flat deck and a wall to prevent cracking of the roofing which is applied over it.
CANTILEVER  look up translate image
Any part of a structure that projects beyond its main support and is balanced on it.
CAP FLASHING  look up translate image
The flashing covering over a horizontal surface to prevent water from migrating behind the base flashing.
CAP SHEET  look up translate image
The top layer in modified bitumen roofing.
CASEMENT WINDOW  look up translate image
A window with hinges on one of the vertical sides and swings open like a door.
CEILING JOIST  look up translate image
One of a series of parallel framing members used to support ceiling loads and supported in turn by larger beams, girders or bearing walls. Can also be roof joists.
CEMENT  look up translate image
The gray powder that is the glue in concrete. Portland cement. Also, any adhesive.
CERTIFICATE OF OCCUPANCY  look up translate image
Certificate is issued by the local municipality and is required before anyone can occupy and live within the building. It is issued only after the local municipality has made all inspections and all monies and fees have been paid.
CFM (CUBIC FEET PER MINUTE)  look up translate image
A rating that expresses the amount of air a blower or fan can move. The volume of air (measured in cubic feet) that can pass through an opening in one minute.
CHASE  look up translate image
A framed enclosed space around a flue pipe or a channel in a wall, or through a ceiling for something to lie in or pass through.
CHECKING  look up translate image
Cracks that appear with age in many large timber members. The cracks run parallel to the grain of the wood. At first superficial, but in time may penetrate entirely through the member and compromise its integrity.
CLEANOUT  look up translate image
An opening providing access to a drain line. Closed with a threaded plug.
CLOSED-CUT VALLEY  look up translate image
A method of valley treatment in which shingles from one side of the valley extend across the valley, while shingles from the other side are trimmed 2 inches from the valley centerline. The valley flashing is not exposed.
COLLAR TIE  look up translate image
Nominal one- or two-inch-thick members connecting opposite roof rafters. They serve to stiffen the roof structure.
COLUMN  look up translate image
A vertical structural compression member that supports loads acting in the direction of its longitudinal axis.
COMBUSTION AIR AND VENTILATION AIR  look up translate image
The ductwork installed to bring fresh, outside air to the furnace or boiler room. Normally two separate supplies of air are brought in: one high for ventilation and one low for combustion.
COMPRESSOR  look up translate image
A mechanical device that pressurizes a gas in order to turn it into a liquid, thereby allowing heat to be removed or added. A compressor is the main component of conventional heat pumps and air conditioners. In an air conditioning system, the compressor normally sits outside and has a large fan (to remove heat).
CONCRETE BOARD OR CEMENT BOARD  look up translate image
A panel made out of concrete and fiberglass, usually used as a tile backing material.
CONDENSATE DRAIN LINE  look up translate image
The pipe that runs from the air conditioning cooling coil to the exterior or internal building drain, to drain away condensation.
CONDENSATION  look up translate image
The change of water from vapor to liquid when warm, moisture-laden air comes in contact with a cold surface.
CONDENSING UNIT  look up translate image
The outdoor component of a cooling system. It includes a compressor and condensing coil designed to give off heat.
CONDUIT, ELECTRICAL  look up translate image
A pipe, usually metal, in which wire is installed. The pipe serves to protect the wire.
CONTROL JOINT  look up translate image
Tooled, straight grooves made on concrete floors or structures to control where the concrete should crack (as a result of shrinkage).
COOLING LOAD  look up translate image
The amount of cooling required to keep a building at a specified temperature during the summer, usually 25 C, based on a design outside temperature.
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Household terms
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Created by admin
Created on 2012-07-05 19:21:20
Number of terms 250
Last added None
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  • Household Glossary
    www.inspectionlibrary.com