Definition of the term Wire Nut
A plastic device used to connect bare wires together.
Definition of the term Beam
A supporting member either of wood or steel. Structural support member (steel, concrete, lumber) transversely supporting a load that transfers weight from one location to another.
Definition of the term Cripple Walls
In a wood-frame house, the section of wall under the house between the concrete foundation and the floor joists. Also called crawl space walls.
Definition of the term Glass-Seal
3-tab self-sealing fiberglass shingles with a traditional square-tab design. A thick layer of weathering-grade asphalt gives them extra waterproofing protection. They are U.L. Class A fire rated and backed by…
Definition of the term Ohmmeter
In electrical contracting, a device to measure the resistance across a load. They are never used on a live circuit. Used to track down broken wires.
Definition of the term Side Sewer
The portion of the sanitary sewer which connects the interior waste water lines to the main sewer lines. The side sewer is usually buried in several feet of soil and…
Definition of the term Wire Size
Conductors for building wiring are available in AWG (American Wire Gauge) sizes ranging from No. 14 to 4/0. The larger the number size, the smaller the diameter. For example, 10…
Definition of the term Bearing Header
(a) A beam placed perpendicular to joists and to which joists are nailed in framing for a chimney, stairway, or other opening. (b) A wood lintel. (c) The horizontal structural…
Definition of the term Crock
Used in the ground to hold water for pumping sump pumps.
Definition of the term Glaze Coat
In roofing, a light uniform mopping of bitumen on exposed felts to protect them from the weather, pending completion of the job.