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SKU: DECKTAPE-100MM
Brand: Dex
100mm Decking Joist Protection Tape – 20m Roll
Extend the life of your deck with premium waterproof protection
Protect and prolong the lifespan of your decking substructure with our 100mm Decking Joist Protection Tape. Engineered for maximum durability and reliability, this high-performance tape forms a watertight, weatherproof barrier that shields decking joists from moisture, rot, and decay.
Manufactured using an advanced polymer acrylic adhesive, it delivers exceptional bond strength and long-term resistance to the harshest environmental conditions—keeping your deck solid and secure for years to come.
✅ Key Features
Watertight Seal – Prevents water ingress to stop rot and decay in decking joists.
Permanent Adhesive Bond – 50-year adhesive strength with a 25-year manufacturer’s guarantee for total confidence.
Self-Sealing Design – Seals automatically around screws and fixings to lock out moisture.
UV-Stable – Resistant to sunlight exposure without cracking or degrading over time.
Air- & Smoke-Tight – Adds an extra layer of protection for superior deck performance.
Eco-Friendly Construction – Made from sustainable, self-reinforced thermopolymers that are 100% recycled.
🛠️ Applications
Suitable for timber and composite decking systems
Ideal for sealing and protecting joists, beams, and other substructure components
Perfect for both new deck builds and decking refurbishments
Secure your deck’s foundation with the 100mm Decking Joist Protection Tape—a sustainable, heavy-duty solution built to withstand the elements and extend the lifespan of your outdoor project. Whether working with traditional timber or modern composite decking, this tape ensures a professional, long-lasting finish every time.
1. What is the 100mm Decking Joist Protection Tape used for?
This tape is designed to protect timber and composite decking substructures by creating a waterproof and weatherproof seal, significantly extending the life of the deck frame.
2. What makes this tape unique?
It is made from a strong polymer acrylic adhesive that is non-butyl, self-sealing, UV-stable, watertight, air- and smoke-tight, and provides a permanent adhesive bond for up to 50 years.
3. Can this tape be used with both timber and composite decking?
Yes, it is compatible with both traditional timber decking and advanced composite decking, protecting the substructure from moisture and rot.
4. How does the tape help with moisture management?
When using composite deck boards, moisture drains off the boards and collects on the substructure. The tape creates a seal that prevents water from penetrating the joists, reducing the risk of rot.
5. Can the tape be overlapped during installation?
Yes, the tape can be easily overlapped without adding significant height, ensuring it does not interfere with the deck board heights.
6. Does the tape leave residue on screws if they are removed?
No, the tape is designed to leave no residue on screws, allowing for easy removal if necessary.
7. Does the tape stick to itself during installation?
No, the adhesive side does not stick to itself, minimizing wastage and making installation more efficient.
8. Are sustainable materials used in this product?
Yes, the tape incorporates sustainable materials, using self-reinforced thermopolymers that are 100% recycled and increase in strength over time.
9. Is the tape easy to install?
Yes, the tape is easy to apply, allowing boards to slide along taped joists smoothly during installation.
10. Does the tape come with a guarantee?
Yes, the tape comes with a 25-year guarantee, ensuring long-lasting performance and reliability for your deck frame.
Lead Time:
Into Order 3-5 Days
Est Delivery:
1-2 Working Days
Need to see it before you buy? We offer samples of our uPVC building products to help you choose the perfect fit. Simply get in touch through our contact page, and we’ll be happy to assist!
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