Selvage Roofing Definition

Roll roofing material with 19 selvage edge for double coverage over roof deck.

Selvage roofing definition.

Glossary 2 7 uses technologies including php and sql. Selvage 1 an edge or edging that differs from the main part of a fabric granule surfaced. 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.

In woven fabric selvages are the edges that run parallel to the warp the longitudinal threads that run the entire. If the threads won t come apart it s the selvage. In general terms the first three feet across a roof is termed the eave. 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.

End laps when installing rolled products in roofing the area where a roll ends on a roof and is. Roll roofing material with 19 selvage edge for double coverage over roof deck. Nineteen inch selvage double coverage or split sheet. 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.

End laps when installing rolled products in roofing the area where a roll ends on a roof and is overlapped by the next. Eaves the roof edge from the fascia to the structure s outside wall. On the yellow fabric pictured the selvage isn t printed. The re roofing specialists 2243 31 st n.

The engineered wood association the apa. It is available in most popular colors and has a 4 in. 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. It is a low cost mineral granule surface roof covering for use on low slope roofs.

A prepared roofing sheet with a 17 inch 430mm granule surfaced exposure and a non granule surfaced 19 inch 485mm selvage edge. Eaves the roof edge from the fascia to the structure s outside wall. The term self finished means that the edge does not require additional finishing work such as hem or bias tape to prevent fraying. It s the white strip at the edge.

In general terms the first three feet across a roof is termed the eave. Sometimes it s harder to distinguish the selvage. Selvage that portion of roll roofing overlapped by the succeeding course to obtain double coverage. Roofing nails and staples driven into decks at an angle not perpendicular to the roof deck surface.

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