Description
Torchflex™ TP-180-FF-Base Heat Welded Base Sheet
Torchflex™ TP-180-FF-Base is a premium SBS-modified bitumen base sheet engineered for use in commercial, industrial, and institutional low-slope roofing systems. Reinforced with a durable non-woven polyester mat strengthened with select glass fiber strands, this heat-welded membrane delivers outstanding strength, flexibility, and long-term performance as part of a multi-layer roofing assembly.
The membrane is coated on both sides with SBS polymers and premium asphalt and features a micro-perforated thermofusible film on both surfaces. During installation, the top film melts when the cap sheet is applied, while the bottom film disappears during heat welding to the substrate, creating a secure and reliable bond.
Key Features
- 3.0 mm SBS-modified bitumen base sheet
- Reinforced non-woven polyester mat with glass fiber strengthening
- Heat-welded application for strong adhesion
- Excellent flexibility, durability, and moisture resistance
- Lay-flat design for easier installation
- Compatible with SBS-modified cap sheet systems
- Meets CSA A123.23 Type B Grade 3 requirements
Applications
- Commercial and industrial roofing projects
- Low-slope and flat roof systems
- Two-ply SBS-modified bitumen assemblies
- New construction and reroofing applications
- Multi-layer membrane roofing systems
Specifications
- Thickness: 3.0 mm (118 mils)
- Roll Length: 10 m (32.8 ft)
- Roll Width: 1005 mm (39.6 in)
- Roll Area: 10 m² (108 ft²)
- Membrane Coverage: 9.10 m² (98 ft²)
- Selvage Width: 90 mm (3.5 in)
- Rolls per Pallet: 32
Torchflex™ TP-180-FF-Base provides a durable, moisture-resistant foundation for SBS-modified roofing systems, helping deliver reliable waterproofing performance and long-term protection in demanding roofing environments.






