COLVENT TG (torch grade) is a SBS-modified bitumen membrane approved for use in roofing assemblies. COLVENT TG is reinforced with a glass fiber mat that is saturated and coated on both sides with a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen.

Product Properties

  • ASTM ASTM D6163
  • Component Base
  • Installation Method Heat Welded
  • Reinforcement Glass Fiber
  • Thickness (minimum) 79 mils (2.0 mm)
  • Thickness (nominal) 87 mils (2.2 mm)
  • Topside Sanded
  • Underside Burn Off Film


Prior to installation, unroll COLVENT TG onto the roof surface and allow to relax. Place COLVENT TG in desired position and back roll the product. COLVENT TG is then heat welded to approved substrates. NOTE: Take care not to overheat the sanded underside to maintain open vent channels between the adhered bitumen ribbons. Fully adhere all side and end laps via heat-welding.


Testing & Approvals

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