Bad Composite Decking Installation Mistakes to Avoid
As cited by professional builders, top-quality composite decking is much more durable than regular wood. When properly installed, composite timber decking serves as a form of protection from any type of weather condition. Usually forged with a blend of recycled plastic and wood fibres, composite decking can endure ultracold to exceedingly humid temperatures.
As impressive as it sounds, you need to properly install the composite decking to enjoy its durable advantages. Before you consider composite decking prices, Here are five installation mistakes that you should avoid:
- Enormous Gaps Between Joists
According to building guidelines, all composite decking must be reinforced with a minimum of 2"×10" pressure-treated pine joists spread out about 30cm from each other. This means there should neither be too little nor too much gap between the joists. This could imply that additional framing is needed if you choose to upgrade from your present pressure-treated wood decks to composite decking material.
This could imply that additional framing is needed if you choose to upgrade from your present pressure-treated wood decks to composite decking material.
- No Lag Head Screws
If you want to keep the composite decking or any other decking from falling apart, then it’s essential that you use lag head screws. The absence of lag head screws also poses a problem to your ledger board attachment. You should check out the fasteners of the former one before proceeding to set up a new composite decking. If the old deck is attached with nails or screws, it is best to ask for professional advice.
- Narrow Deck Footing
There can be future problems when concrete footings are not set up properly. For instance, if they are not installed lower than the frost line, it is a potential hazard on the concrete footers in extremely cold weather. When the concrete footing is installed at the right depth, it enhances the absorption and contraction of the material around it because it freezes and melts without moving the deck.
- Insufficient Ventilation
Though composite decking is made to endure moisture, long-term exposure to moisture can destroy the substructure and build up mold growth on the composite decking. The ideal distance between decking boards from a structure is 12mm. This helps to prevent capillary action and also enables water to drain. Note that decking boards should always be kept away from every other surface except it is a substructure. You may employ ventilation grates to encourage airflow if necessary.
- Weak Decking Frame
Composite decking may fail for reasons other than too much weight. In some cases, the problem might be an improperly fastened ledger board. Hence, it is important to fasten the ledger boards properly to allow drainage of water from under the finished wall construction. As is always the case with timber, a strong decking frame is highly dependent on the absence of moisture.