G-Tape – Joist & Bearer Protection
G-Tape is a premium self-adhesive flashing tape specifically designed to protect timber joists and bearers in decking applications. Made from advanced acrylic adhesive with a tough, UV-stable polyethylene surface, G-Tape extends the life of timber substructures by sealing out moisture and preventing rot.
Key Features:
- Self-adhesive acrylic tape – no primer or heat required
- Waterproof and UV-resistant for long-term outdoor durability
- Protects joists and bearers from moisture ingress, rot, and splitting
- Helps prevent corrosion of metal fasteners in treated timber
- Tear-resistant and stretchable – conforms easily to timber surfaces
- Leaves no mess or residue during installation or repositioning
- Can be applied in a wide range of temperatures
Typical Applications:
- Joist and bearer protection in timber and composite decking installations
- Barrier between timber and metal connectors or fixings
- Suitable for new builds or as a retrofit to extend deck life
- Can be used on beams, rim joists, and stringers for full frame coverage
Available Sizes:
- Supplied in various roll widths (commonly 50mm, 100mm) to suit different framing members
Installation Tip:
Apply directly to clean, dry timber surfaces before laying decking boards. Overlap edges slightly to ensure full coverage and press firmly to ensure proper adhesion. Trim excess with a utility knife for a neat finish.
