Vented Roof Base Sheet

Polyflex sa base is specifically designed to be used as a base sheet for heat welded roofing assemblies.

Vented roof base sheet.

Firestone channel venting base is an oxidized asphalt coated fiberglass base sheet with granules on the underside of the membrane. For example a lightweight concrete or nailable deck may need a venting base sheet. A lightly modified asphalt coated fiberglass base sheet or base ply. 1 embossed waffle pattern grid channels.

Gafglas stratavent nailable venting base sheet is a premium grade roofing felt constructed around a strong glass fiber mat and high quality asphalt. There is a slight grid pattern embossed into the granules to further aid in venting latent moisture in the existing roof system or deck. Gafglas stratavent perforated venting base sheet is a premium grade roofing felt with a patented perforated design that allows mopping asphalt to flow through to the substrate as the next ply of the roof system is installed. Ventsulation felt may be used as a base sheet for any built up roofing or modified bitumen roofing system to be installed over a substrate that potentially contains moisture.

Promotes moisture vapor venting. It is made of fiberglass or reinforced polyester or composite reinforcement and is saturated coated with modified bitumen asphalt. Promotes moisture vapor venting. A lightly modified asphalt coated fiberglass base sheet or base ply.

Polyflex sa base is a premium self adhered base ply roofing membrane. The bottom of the sheet is granule surfaced to provide positive venting of any trapped gases under the roof membrane. Helps prevent blistering of asphalt based roofs when installed over potential moisture. Helps prevent blistering of asphalt based roofs.

Firestone channel venting base is an oxidized asphalt coated fiberglass base sheet with granules on the underside of the membrane. Also the application will be. Designed for use under siplast systems in certain nailable applications. Certainteed yosemite venting base sheet is designed for use as a buffer sheet over existing roofing membranes in lieu of a divorcing layer of roof insulation on re cover projects where the existing roofing membrane is left in place.

There is a slight grid pattern embossed into the granules to further aid in venting latent moisture in the existing roof system or deck. 3 28 ft 1 00 m x 102 3 ft 31 2 m 3 sq 27 9 m 2 30 lb sq 1 4 kg m 2 parabase plus p. A roofing base sheet is the bottom waterproofing layer on a multilayer roofing membrane system.