Selvage Roofing Definition

On the green fabric pictured the selvage matches the rest of the fabric.

Selvage roofing definition.

Eaves the roof edge from the fascia to the structure s outside wall. A prepared roofing sheet with a 17 inch 430mm granule surfaced exposure and a non granule surfaced 19 inch 485mm selvage edge. Roll roofing material with 19 selvage edge for double coverage over roof deck. If in doubt about an edge try to unravel the threads.

A selvage us english or selvedge british english is a self finished edge of a piece of fabric which keeps it from unraveling and fraying. Selvage 1 an edge or edging that differs from the main part of a fabric granule surfaced. Roll roofing material with 19 selvage edge for double coverage over roof deck. It s the white strip at the edge.

A system of interacting roof components generally consisting of a membrane or primary roof covering and roof insulation not including the roof deck designed to weatherproof and sometimes improve the building s thermal resistance. The engineered wood association the apa. The term self finished means that the edge does not require additional finishing work such as hem or bias tape to prevent fraying. End laps when installing rolled products in roofing the area where a roll ends on a roof and is.

Nineteen inch selvage double coverage or split sheet. In general terms the first three feet across a roof is termed the eave. In woven fabric selvages are the edges that run parallel to the warp the longitudinal threads that run the entire. Selvage definition is the edge on either side of a woven or flat knitted fabric so finished as to prevent raveling.

End laps when installing rolled products in roofing the area where a roll ends on a roof and is overlapped by the next. The black mineral surface rolled roofing is a general purpose roofing product recommended for use in new roofing and re roofing installations. On the yellow fabric pictured the selvage isn t printed. Eaves the roof edge from the fascia to the structure s outside wall.

A narrow border often of different or heavier threads than the fabric and sometimes in a different weave. Glossary 2 7 uses technologies including php and sql. In general terms the first three feet across a roof is termed the eave. This material is some times referred to as sis double coverage or according to astm standard d 371 89 standard specification for asphalt roll roofing.

Sometimes it s harder to distinguish the selvage. Roofing nails and staples driven into decks at an angle not perpendicular to the roof deck surface. The engineered wood association is a trade organization that develops product standards installation standards and does certification testing of engineered wood products such as plywood and osb. Selvage that portion of roll roofing overlapped by the succeeding course to obtain double coverage.

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