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Building Code

A set of legal regulations that ensure a minimum standard of health and safety in buildings.

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Buffer, Elevator

Energy-absorbing units placed in the elevator pit.

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Brown Coat

The second coat of plaster in a three-coat plaster finish.

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Builder's Risk Insurance

- Insurance coverage on a construction project during construction, including extended coverage that may be added for the contract for the customer's protections.

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Brittleness

The characteristic of a material that tends to crack or break without appreciable plastic deformation.

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British Thermal Unit (BTU)

The amount of heat required to raise the temperature of 1 pound (lb) of water by 1 degree Fahrenheit (F).

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Buck

Often used in reference to rough frame opening members. Door bucks used in reference to metal door frame. See Window Bucks

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Building codes-

Community ordinances governing the manner in which a home may be constructed or modified.

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Buildable Area

The net ground area of a lot that can be covered by a building after required setbacks and other zoning limitations have been accounted for.

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Buffer Zone

An area separating two different elements or functions.

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Building Line

A defined limit within a property line beyond which a structure may not protrude.

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Bull nose (drywall)

- Rounded drywall corners.

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Building Envelope

The enclosure that contains a building's maximum volume.

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Bundle

A package of shingles. Normally, there are 3 bundles per square and 27 shingles per bundle.

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Built-up roof

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.

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Built-Up Roof Membrane

A continuous, semi-flexible roof membrane built up fo plies of saturated felts, coated felts, fabrics, or mats that have surface coats of bitumens. The last ply is covered with mineral aggregates, bituminous materials, or a granular-surface roofing sheet.

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Building insurance

Insurance covering the structure of the building.

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Building Drain

The lowest horizontal piping of a plumbing drainage system that receives the discharge from soil, waste, and other drainage pipes within the building and carries the wasted to the building sewer.

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Building Sewer

Horizontal piping that carries the waste discharge from the building drain to the public sewer or septic tank.

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Building paper

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.