Selvage Roofing Definition

It s the white strip at the edge.

Selvage roofing definition.

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. Eaves the roof edge from the fascia to the structure s outside wall. It is available in most popular colors and has a 4 in. Sometimes it s harder to distinguish the selvage.

On the green fabric pictured the selvage matches the rest of the fabric. 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. Eaves the roof edge from the fascia to the structure s outside wall. On the yellow fabric pictured the selvage isn t printed.

The engineered wood association the apa. The re roofing specialists 2243 31 st n. Selvage that portion of roll roofing overlapped by the succeeding course to obtain double coverage. A narrow border often of different or heavier threads than the fabric and sometimes in a different weave.

In general terms the first three feet across a roof is termed the eave. Glossary 2 7 uses technologies including php and sql. End laps when installing rolled products in roofing the area where a roll ends on a roof and is overlapped by the next. 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. It is a low cost mineral granule surface roof covering for use on low slope roofs. Selvage 1 an edge or edging that differs from the main part of a fabric granule surfaced. 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.

A prepared roofing sheet with a 17 inch 430mm granule surfaced exposure and a non granule surfaced 19 inch 485mm selvage edge. The term self finished means that the edge does not require additional finishing work such as hem or bias tape to prevent fraying. Roll roofing material with 19 selvage edge for double coverage over roof deck. Roofing nails and staples driven into decks at an angle not perpendicular to the roof deck surface.

In general terms the first three feet across a roof is termed the eave. The black mineral surface rolled roofing is a general purpose roofing product recommended for use in new roofing and re roofing installations. Roll roofing material with 19 selvage edge for double coverage over roof deck. 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.