Gaf Glass Base Sheet

Gafglas 75 base sheet for built up roofing bur is a premium roofing sheet with a strong fiberglass mat to prevent asphalt bleed through.

Gaf glass base sheet.

The membrane complies with astm d 4897. Constructed with a strong glass fiber mat coated with the finest quality asphalt this base sheet is designed with optimum porosity to assure a sound watertight membrane. Find gaf s specifications for gafglas 75 base sheet here. Special loctite closed pore design prevents bleed through while provid ing iong lasting leak protec tion in a variety of demanding applications.

Gaf tri ply 75 base sheet tri ply 75 base sheet is a premium roofing base sheet constructed with a strong glass mat coated on both sides to prevent asphalt bleed through that also serves as an effective flame retarder for the application of torch applied modified bitumen membranes. Gafglas stratavent perforated venting base sheets are unique in the industry. It is manufactured in a roll size of 39. Gaf triply 75 base sheet tri ply 75 base sheet a heavyweight asphalt coated glass base sheet fully coated on both sides for use as a base ply in the construction of tri ply modified bitumen roof systems.

It has a high tensile strength and high degree of dimensional stability resulting in a roof system with greater resistance to splitting and cracking. Why gafglas ply 4. The glass base resists the effects of moisture on the roof system while the aesthetically attractive granule surface provides an ultra violet protective surface and requires no additional surface coatings. 4 inches by 40 8 feet 1 m by 12 4 m.

Lightweight and applies quickly greater adhesion to asphalt or cold applied cements. The patented perforated design allows mopping asphalt to flow through to the substrate as the next ply of the roof system is installed. The bottom of the sheet is granule surfaced. 3 5 4 gafglas stratavent eliminator base sheet.

Thsi is a roofing base sheet constructed of glass fiber mat and asphalt. It is available for nailable or non nailable substrates.