It is unlikely that your composite deck will warp. However, they can have a tendency to sag and buckle if not installed properly.

Composite decks are made from a mix of wood and plastic, so they are not as susceptible to warping as wooden decks. Also, with thermal expansion and contraction, it is important to make sure that your composite deck is properly installed so that it does not buckle or sag.

If you have any concerns about your deck, please contact a professional deck builder or installer.

What Should You Do If It Does Warp?

If your composite deck does warp, you can try to fix it. First, identify the source of the problem. Then when you have, it will likely be down to bad fitting and not screwing the decking down properly.

Re-tighten any loose screws and ensure that there are no gaps between the decking boards. If the problem persists, you may need to replace the warped boards.

Related: Mistakes to Avoid When Cleaning Your Composite Deck

Why does it warp?

Decking can warp if it expands and touches a fixed surface or if the sun hits it for too long and one side of the board expands more than the other. If your deck is not properly installed, it can also warp due to thermal expansion and contraction.

Related: Deck Replacement: When It’s Needed & What You Need to Do

What Is Wood Plastic Composite?

Wood-plastic composite (WPC) is a mix of wood and plastic. It is made from a mixture of sawdust, wood chips, or wood shavings and thermoplastic resins. The ratio of wood to plastic depends on the manufacturer and the desired properties of the decking.

WPC decking is not as susceptible to warping as wooden decking. However, it can still happen if the boards are not properly installed. With proper installation, your WPC deck should not warp.

If you have any concerns about your deck, please contact a professional deck builder or installer.


Will dog pee ruin composite decking?

No, as long as you clean it up quickly, dog urine will not damage composite decking. It is also important to give your decking a light pressure wash on a regular basis to keep it clean and prevent any built-up dirt or grime from causing staining.

Related: Why You Should Never Use Bleach On Composite Decking
Related: Can You Remove Cat Urine From Concrete? (STEP BY STEP)

Will composite decking fade?

Composite decking is not like timber and will not fade over time. However, it can become stained by dirt, leaves, and other debris, so it is important to keep it clean. A pressure washer can be used to clean your decking, but be careful not to damage the boards.

Will composite decking scratch?

Even though composite decking is hard wearing and durable, it can still be scratched. To avoid this, you should sweep your deck regularly and remove any dirt or debris that could scratch the surface. You can also use a furniture pad when moving heavy objects across your deck.

What is the best composite decking?

There is no definitive answer to this question as it depends on your individual needs and preferences. However, some of the most popular composite decking brands include Trex, TimberTech, and Azek.

What is the difference between capped and uncapped composite decking?

Capped composite decking has a protective layer that covers the boards and prevents them from becoming damaged. Uncapped composite decking does not have this protection and is more susceptible to staining and fading.

Will composite fascia warp?

Composite fascia is less likely to warp than wooden fascia. However, if it is not installed properly, it can sag and buckle. To avoid this, make sure that your composite fascia is properly secured and any screws are tight.

How long should a composite deck last?

Composite decking lasts between 25 and 30 years. However, this is only an estimate and it will depend on how well you take care of your deck. To extend the life of your composite deck, sweep it regularly and pressure washes it.

Does composite decking get hot?

Yes, composite decks can reach temperatures up to 34° to 76° F hotter than the surrounding environment if they are in direct sunshine. A deck cooler or a water spray may be used to reduce this. If desired, you may also select a lighter-colored composite decking to assist keep the temperature down.

Does composite decking shrink?

Yes, composite decking can shrink. This is because it is made from a mix of wood and plastic, which are both materials that can expand and contract in different weather conditions.

Can you power wash composite decking?

Yes, you can power wash composite decking but be careful not to damage the boards. Use a low-pressure setting and hold the nozzle away from the surface. You should also avoid using a power washer on any areas that are cracked, split, or peeling.

Why is my composite decking cracking?

Composite decking can crack for a number of reasons. It can be caused by the sun, moisture, dirt, or even temperature changes.

Can I put composite decking over pressure-treated wood?

Yes, you can put composite decking over pressure-treated wood but you should ensure that the surface is level and even. You may also need to use a sleeper system to provide additional support.

Related: Composite Deck Boards Make Great Swimming Pool Decks

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