GAF Hybrid 3-Part Master Specification
Specifications
About GAFGLAS® STRATAVENT® Nailable Venting Base Sheet
Suited to all climate zones, they provide for the venting of pressurized gasses beneath the roofing membrane.
In recover applications, they provide an effective means for separating the new roofing membrane from the existing roof system. They also offer excellent wind uplift-resistance (FMRC Approved up to Class 1-345 — See FM Approval Guide for details). They are fire resistant — for use in UL Class A rated assemblies — and system guarantees are available for up to 20 years.
Product Documentation
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GAF SBS Modified Bitumen 3-Part Master Specification
Specifications
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GAFGLAS® Stratavent Base Sheet SDS - 1005
Safety Data Sheets
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Hoja base GAFGLAS® Stratavent® SDS - 1005
Safety Data Sheets
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SBS, APP & BUR roof system product comparisons
Any discussion on asphaltic roofing will involve one or more of these three terms: SBS (Styrene-Butadiene-Styrene), APP (Atactic Polypropylene), and BUR (Built-up roofing). SBS and APP are polymers with unique characteristics, and membranes made with them are classified by ASTM numbers, types and grades. BUR is an assembly method in which multiple layers of felts are installed with hot asphalt in-between.
Asphaltic Membrane Installation Methods
One of the many reasons asphaltic roofing remains so popular is the wide variety of installation methods available. Depending on specifications, building characteristics and use cases, asphalt roofs can be hot-mopped, heat-welded/torch-applied, cold-applied (adhered), self-adhered, or mechanically attached. Find more about these techniques.
Asphaltic Commercial Roofing 101
Proven historical performance. Time tested durability. Asphaltic roofing products are a go-to material of choice for high end low-slope buildings. Learn more about asphaltic technologies and application techniques, as well as how to decide if asphaltic is the right roofing solution for your next project.
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