4 inches by 40 8 feet 1 m by 12 4 m.
Gaf glass base sheet.
3 5 4 gafglas stratavent eliminator base sheet.
The membrane complies with astm d 4897.
It is manufactured in a roll size of 39.
The patented perforated design allows mopping asphalt to flow through to the substrate as the next ply of the roof system is installed.
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.
Gafglas 75 base sheet for built up roofing bur is a premium roofing sheet with a strong fiberglass mat to prevent asphalt bleed through.
Gafglas 80 ultima base sheet is a high performance asphalt coated glass reinforced roofing base sheet.
The bottom of the sheet is granule surfaced.
Gafglas stratavent perforated venting base sheets are unique in the industry.
Find gaf s specifications for gafglas 75 base sheet here.
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.
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 is available for nailable or non nailable substrates.
Special loctite closed pore design prevents bleed through while provid ing iong lasting leak protec tion in a variety of demanding applications.
It has a high tensile strength and high degree of dimensional stability resulting in a roof system with greater resistance to splitting and cracking.
Ul class a b or c membrane constructions are available and system guarantees are available for up to 20 years.
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.
Thsi is a roofing base sheet constructed of glass fiber mat and asphalt.
