Definition of Z-Bar Flashing

Z-Bar Flashing

Bent, galvanized metal flashing that is installed above a horizontal trim board of an exterior window, door, or brick run. It prevents water from getting behind the trim/brick and into the home.

Barge

A horizontal beam rafter that supports shorter rafters.

Barge Board

A decorative board covering the projecting rafter (fly rafter) of the gable end. At the cornice, this member is a fascia board.

Barrel Vault

A vaulted ceiling of semi-circular shape, creating a dome-like appearance.

Flashing

The building component used to connect portions of a roof, deck, or siding material to another surface such as a chimney, wall, or vent pipe. Often made out of various metals, rubber or tar and is mostly intended to prevent water entry.

Polyethylene Vapor Barrier

Plastic film used to prevent moisture from passing through unfaced insulation. Both 4- and 6-mil polyethylene are preferred because they are less likely to be damaged during construction.

Radiant Barrier

A radiant barrier is a reflective surface, on or near a building component, that intercepts the flow of radiant energy to and from the building component.

Radiant Barrier System

A Radiant barrier System (RBS) is a building section that includes a radiant barrier facing an air space.

Rebar

Ribbed steel bars installed in foundation concrete walls, footers, and poured in place concrete structures designed to strengthen concrete. Comes in various thickness' and strength grade.

Reinforcing Bar

See Rebar

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