Fiberglass Base Sheet Roofing
Henry 604 25 fiberglass base sheet is a heavy duty asphalt coated sheet with a heavyweight non woven fiberglass mat suitable for use in fire retardant membrane assemblies built up roofing systems ply sheets and base sheets.
Fiberglass base sheet roofing. 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 75 base sheet for built up roofing bur is a premium roofing sheet with a strong fiberglass mat to prevent asphalt bleed through. It is ideal for applications involving mechanical fasteners hot asphalt or cold adhesives. It has a coating layer of asphalt on each side that reacts with henry cold application cement solvents to provide excellent adhesion without decreased tensile strength.
It is made of fiberglass or reinforced polyester or composite reinforcement and is saturated coated with modified bitumen asphalt. Fiberglass base sheet is applied over the flat roofing deck or insulation as a base sheet by mechanical fasteners or hot asphalt before the application of build up roofing systems. Leakbarrier glass base is designed for use as the initial or base ply in built up and modified bitumen roof systems. This is asphalt enhanced with plastic or rubber polymer.
A roofing base sheet is the bottom waterproofing layer on a multilayer roofing membrane system.