Roofing

Roofing

Referring to the construction and/or tiling of rooves on buildings and other structures.

Industry: Construction

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Roofing

Class A

Construction; Roofing

The highest fire-resistance rating for roofing as per ASTM E-108. Indicates roofing is able to withstand severe exposure to fire originating from sources outside the building.

Chalk line

Construction; Roofing

A line made on the roof by snapping a taut string or cord dusted with chalk. Used for alignment purposes.

Built-up roof

Construction; Roofing

A flat or low-sloped roof consisting of multiple layers of asphalt and ply sheets.

Bundle

Construction; Roofing

A package of shingles. There are 3, 4 or 5 bundles per square.

Dormer

Construction; Roofing

A framed window unit projecting through the sloping plane of a roof.

Double coverage

Construction; Roofing

Application of asphalt roofing such that the lapped portion is at least two inches wider than the exposed portion, resulting in two layers of roofing material over the deck.