Base Sheets

Solid insulation with the proper amount of insulating value over a moisture- controlled environment is the first step in building a long-performing roof system. Without a good, solid foundation, any roof system is in jeopardy of premature failure.

An asphalt-based roof system also needs an appropriate base sheet to properly perform. Design criteria will dictate the necessary attributes of that platform. Depending on whether the system is APP, SBS, BUR or a hybrid, Elevate offers a complete line of membranes to fulfill any anticipated need.

Elevate Channel Venting Base is an oxidized asphalt-coated fiberglass base sheet with granules on the underside of the membrane. There is a slight grid pattern embossed into the granules to further aid in venting latent moisture in the existing roof system or deck. It is designed to be mechanically fastened over lightweight concrete roof decks or other surfaces as a base for Elevate modified bitumen or built-up roofing systems. The sanded top surface is suitable for installation of the roofing system using a self-adhered base sheet, hot asphalt, Elevate MB Cold Adhesive, or a roofing torch.

FEATURES AND BENEFITS

• Lightly embossed granule surface underside
• Heavy fiberglass-reinforced mat
• Sanded top surface
• Allows movement of vapor to reduce chance of blisters in finished roof
• Strong and tough
• Easy to install roof system to top surface with a self-adhered base sheet, hot asphalt, Elevate MB Cold Adhesive, or a roofing torch

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