Designed for use under siplast systems in certain nailable applications.
Vented roof base sheet.
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.
Polyflex sa base is constructed with a black mineral surfaced app weathering compound uniquely formulated to provide for exceptional bonding to heat welded interply or cap sheets.
A roofing base sheet is the bottom waterproofing layer on a multilayer roofing membrane system.
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.
Polyflex sa base is a premium self adhered base ply roofing membrane.
A lightly modified asphalt coated fiberglass base sheet or base ply.
It is made of fiberglass or reinforced polyester or composite reinforcement and is saturated coated with modified bitumen asphalt.
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.
Promotes moisture vapor venting.
Also the application will be.
For example a lightweight concrete or nailable deck may need a venting base sheet.
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 nailable venting base sheet is a premium grade roofing felt constructed around a strong glass fiber mat and high quality asphalt.
Polyflex sa base is specifically designed to be used as a base sheet for heat welded roofing assemblies.
Promotes moisture vapor venting.
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.
There is a slight grid pattern embossed into the granules to further aid in venting latent moisture in the existing roof system or deck.
Firestone channel venting base is an oxidized asphalt coated fiberglass base sheet with granules on the underside of the membrane.
Helps prevent blistering of asphalt based roofs when installed over potential moisture.
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.
1 embossed waffle pattern grid channels.
A lightly modified asphalt coated fiberglass base sheet or base ply.
