What Are the Problems of Composite Decking?

M. John
What Are the Problems of Composite Decking?

Ultradecking composite decking is one of the best outdoor flooring materials. Most homeowners abandon wood for composite decking because it is more durable than wood, beautiful and also easy to maintain. Despite the benefits of composite decking,  there are few problems associated with it.

It is good for you to know both the benefits and problems of composite decking boards before installing them in your home. This write-up discusses the problems associated with composite decking.

Problems of Composite Decking

Composite decking board


Composite decking is more expensive than wood decking. Although, the price of a composite board varies according to the manufacturer. Its high cost compared to wood is one of the problems associated with composite decking boards. The cost to purchase composite decking can be a problem for homeowners who are on a low budget. For instance, if it cost you £15 to purchase a wood decking board, composite decking can cost about £25.

Additionally, composite decking is also costly to install than wood. So if you want to build a composite deck in your home, you will have to spend more money purchasing the decking material than you would if you wanted to build a wood deck. Homeowners view the cost to purchase and also install composite boards as a problem associated with composite decking.

Heat Problem

Dark composite decking boards absorb heat from the sun. It is another problem associated with composite decking. The decking board can get hot if you don’t build it under a shaded area. A reason for this is that when the weather is hot, especially in summer, composite decking boards assimilate heat from the sun. Dark coloured decking tends to absorb heat from the sun than the grey and other light-coloured ones.

It is like how you will feel hot on a sunny day if you wear a black shirt compared to when you wear a light coloured shirt. Dark shirts absorb heat from the sun, likewise dark-coloured composite decking. So if you install a dark-coloured composite decking on your outdoor space without building a shade over the deck, it will get hot in summer. When this happens, you will not find it comfortable walking on your deck with your barefoot.

 Easily Scratched Surface 

Another problem with composite decking is that it tends to scratch more easily than wood. Kid toys, furniture, BBQ grills, and even your pet nails can all leave marks on your composite deck. And when there are scratches on your decking boards, fixing it might be difficult. You can’t fix the scratches unless you replace the decking with a new one. Composite decking is not like wood that you can sand if there are scratches on it. It’s part of the problems homeowners noticed about their composite decking board.


Grease or oil can easily stain the surface of a composite board. If you leave stains on the decking for long, the stains can be difficult to clean. Most homeowners see this as stressful and consider it as a problem associated with composite decking. So, when you notice any stain on your composite decking, clean the stains immediately. You can make use of diluted vinegar and baking soda to clean your decking. Pour the vinegar and baking soda on your deck and scrub the deck surface with a brush.

Mould and Mildew

Although the composite board is said to be resistant to mould, it is still susceptible to mould and mildew. If you leave dead leaves for too long on your deck without sweeping them, moisture will build up under the leaves. It will, in turn, cause mould and mildew to start growing on your deck surface. Removing the mould can be a difficult task for you. Mould growth on composite decking is among the problems of composite decking.

Warping of the Boards

A composite decking board can not warp like wood if you follow the manufacturer’s guidelines during installation. But if you don’t space the decking properly while installing it, the decking board will warp. Composite decking boards require a space of about 5 mm between the deckings during installation to prevent the board from damaging. If you don’t leave space between the deckings, the decking board can shift from its initial position. When the boards are tightly closed to one another, it can cause the decking to warp.


The problems associated with composite decking boards are few. Composite decking can become hot if you don’t build it under a shade. Apart from that, the decking is also expensive to purchase and install.

Tags: Common problems with deckings, decking problems

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