INSTALLING YOUR TIMBER
Ventilation Free air circulation under the decking is very important to help minimize cupping and warping for any timber. Proper ventilation ensures the potential difference in moisture levels between top face and the underside of the boards is reduced and extends the life and performance of the deck. The sub-deck should be greater than 450mm clearance from the ground and should also have adequate drainage. This, in conjunction with suitable spacing, will allow for adequate ventilation.
It is important that the perimeter of the deck is not fully enclosed by a surround, and remains open to airflow. Completely enclosing the sides of the deck will inhibit proper ventilation and compromise the performance of the decking. In wet areas or over water, additional clearance is recommended.
Failure to provide for suitable ventilation is a major cause of early decking failure.
Other steps that can be taken to minimize moisture differential are:
A ground level vapour barrier (with slit drainage).
A suitable surface coating on all four sides of the decking boards (refer coating section).
Span Hardwood Decking, 19mm thick should be installed at maximum 450mm joist centres.
The joists should be clean and sound and the screws should penetrate at least 40mm into the joists to achieve good holding. Pre-drilling and counter-sinking is essential to avoid end splits.
STORAGE & HANDLING
Decking must be kept dry and out of the Sun and Rain. Storage of decking should be kept in a covered, cool and dry place. On site each pack should be kept at least 100mm off the ground by placing it on bearers. Make sure bearers are evenly placed to support the load of timber. Do not leave it on the shipping pallet.
Using a plastic tarp isn’t considered best practise while storing your decking timber. If you cannot store your timber in your garage or under a roof, use a canvas/waterproof tarp and allow ends to be open for air flow.
MAINTAINING YOUR DECK
Our Hardwood Decking is sourced, milled, transported with care and finally inspected to ensure quality. As with all natural wood product it is subject to variations in weight, density, colour, grain and performance. Care must be taken at installation and maintenance to allow for movement. Some swelling, shrinkage, movement and checking are normal occurrences in timber decking.