Home Home Home

Bituminous Roof Membranes - Vented Asphalt Base Sheets


SR Base G G MA V

SR Base G G MA V is a premium grade, mechanically attached, vented base sheet produced with a strong fiberglass mat and coated with high quality asphalt. The underside of the roll is granular surfaced to provide venting of any trapped gasses.

BENEFITS:

  • Provides for venting of pressurized gasses beneath the membrane roof system.
  • In recover applications, provides an effective means for separating the new roofing membrane from the existing roof system.
  • Meets ASTM D 4601, Type II and D3672 Type II.


SR Base GS V

SR Base GS V is a premium grade, hot-applied, vented base sheet produced with a strong fiberglass mat and coated with high quality asphalt. The underside of the roll is granular surfaced to provide venting of any trapped gasses.

BENEFITS:

  • Provides for venting of pressurized gasses beneath the membrane roof system.
  • In recover applications, provides an effective means for separating the new roofing membrane from the existing roof system.
  • Provides consistent, uniform spot-attachment of the roofing membrane.
  • Meets ASTM D 4601, Type II and D 3672 Type II.