Selvage Roofing Definition

2 a specially defined edge of the material lined for demarcation which is designed for some special purpose such as overlapping or seaming.

Selvage roofing definition.

A bituminous waterproofing agent used in various types of roofing materials. A selvage or selvedge is a self finished edge of a piece of fabric which keeps it from unraveling and fraying. Shingle mate gaf s shingle underlayment. An edge as of fabric or paper meant to be cut off and discarded.

That portion of roll roofing overlapped by the succeeding course to obtain double coverage. 1 an edge or edging that differs from the main part of a fabric granule surfaced roll roofing or cap sheet or other material. Breather type with fiberglass backing to reduce wrinkles and buckles. The term self finished means that the edge does not require additional finishing work such as hem or bias tape to prevent fraying.

Designed for nail placement and sealant. The edge on either side of a woven or flat knitted fabric so finished as to prevent raveling specifically. Area does not tie into any other roofs. A narrow border often of different or heavier threads than the fabric and sometimes in a different weave.

Selvage the non exposed area on rolled roofing.