GAFGLAS? Stratavent? Nailable Venting Base Sheet is a premium grade roofing felt constructed around a strong glass fiber mat and high-quality asphalt. The bottom of the sheet is granule-surfaced to provide positive venting of any trapped gases under the roof membrane.

Feautures:

• GAFGLAS? Stratavent? Nailable Venting Base Sheet is available for nailable and non-nailable substrates
• GAFGLAS? Stratavent? Nailable Venting Base Sheet is mechanically attached to wood, structural wood fiber, poured gypsum, and light weight insulating concrete decks