Joist Shield™ The smart choice for decking joist protection.
Sun Decking boards will last for decades. It makes perfect sense to ensure your joists and deck structure will do the same.
Installing or improving your deck structure with hardwood or treated timber joists is a major investment. Using Joist Shield™ joist sealing tape before laying your decking is a judicious and easy way to secure that investment.
When you are around decks a lot, as we are, it is quite common to see water ingress down into screw fixings and ultimately causing the boards to become loose. It is also quite typical to see where water has infiltrated into the top of joists over the years with the resulting degradation, ultimately softening and weakening them in places.
This is a common problem that is easily avoidable and on a typical 50M² deck using joist protection such as Joist Shield™ might involve only $160 on your total budget.
If you are laying your composite deck, then the small and inexpensive task of guarding the top edge of joists from water ingress will eliminate the chances of failure in the future. After all the deck you lay will likely be sat for the next 20 years, do you want to lift the composite again in five years to refix screws? Or replace weak joists in ten? Or have a surveyor note initial rotting in your supporting joists if you decide to sell?
Sun Decking Joist Shield
- This is a high-quality black butyl adhesive tape.
- Designed to seal joist timbers from any water ingress, and seal screw holes.
- .7mm thick tape allows boards and clips to bed securely.
- 60mm and 80mm wide tape in rolls of 10m.
- Perfect for wet areas, pool areas that need protection.
- Seals securely to the joist, the top side is a smooth finish.
- Sold in 10m rolls. Priced at 13.00 for the 60mm and 15.00 per rolss for the 80mm wide option.
- We can freight anywhere in the country.


