HD Protect Tape

Protect your decking investment with premium joist protection tape, designed to stop timber joists rotting under composite or timber decking. This heavy-duty, self-adhering flashing tape creates a waterproof, self-sealing barrier that shields wood from moisture and water damage, extending the life of your deck. Available in extra-wide 118mm (20m roll) or 63mm width for versatility, it applies quickly with a strong, lasting bond to both treated and untreated timber. Trusted by professionals, Composite Prime delivers trade-quality products built to perform on-site – keeping your projects stronger, longer.