Composite decking or WPC decking requires maintenance. But the way you maintain your WPC decking is different from how you take care of timber. This is one reason owners of composite decking prefer it to wood. We explained how you should maintain your composite decking or WPC decking in this write-up.

Tip for WPC Decking Maintenance

It is worth mentioning that composite decking requires little or less maintenance when you compare it to wood. This implies that you don’t have to sand or seal your WPC decking so that it will last long. Also, your WPC decking does not need painting or staining. What your composite decking needs to stay looking good is a simple cleaning. 

Sweep Away Standing Water

Composite decking boards are designed to resist water or moisture. This does not mean that you should let standing water settle on your composite decking. Although your composite decking will not rot like wood, standing water can create the perfect condition for mould and mildew growth. Also, green algae can grow on your WPC decking if let water accumulates on it. So to protect your decking, you should sweep away standing water.

Don’t Let Rain Water Pour on It

If you install your composite decking close to your house, you should not let rainwater from the roof fall directly on your decking. This will further expose your composite decking to moisture and can let mould to grow on it.

Allow Air Flow Under Your Decking

If you install an elevated composite decking, you should let air circulate under it. When airflow under your WPC decking is constant, the decking will dry faster. So, you should ensure that you leave at least 6 inches space under your elevated decking.

Sweep Your Composite Decking Regularly

WPC Decking Maintenance

Your composite decking is like other household material that needs constant cleaning. This implies that you have to sweep the top of your WPC decking to remove dust or debris. Sweeping your composite decking is crucial because you will remove leaves or twigs when they fall on it. 

If food drops on your composite decking, cleaning it will remove the food before its decay. Decaying organic matter on decking can be a breeding ground for mould and mildew. So when you sweep your WPC decking, you will prevent mould from growing on it.

Remove Ice or Snow 

If you reside in a cold area and there is constant snowfall, you should prepare to take away snow and ice from the top of your WPC decking. Note that if snow accumulates on your WPC decking, it will become ice. The problem with ice accumulation is that it will make your composite decking slippery.

 A slippery WPC decking can be hazardous because you can fall on it. WPC decking has a slip-resistant surface texture that makes you stay and not slip. But if ice accumulates on your composite decking, it will become slippery. The right way to remove ice from your WPC decking is by using a rubber shovel to scrape them off. 

Scrub Mould and Mildew from Your WPC Decking

Makers of composite decking made it in such a way that it will resist the growth of mildew. But as we explained earlier, mildew can grow on your WPC decking of water or decaying food stays on it. The perfect condition for mould growth on composite decking is air, warmth, moisture, and decay. 

So, if you discover mildew growing on your WPC decking, you should scrub it off immediately. You will need soapy water, a brush that is not hard, and a hose for the task of scrubbing mildew or mould off your WPC decking.

Scrub Grease or Oil off Your Composite Decking

Grease or oil stain are things that can distort the beautiful appearance of your WPC decking. If you discover oil stain due to putting a grill on your decking, you should scrub it off immediately. You will need a brush that is soft and soapy water to remove stain from your composite decking. Ensure that you scrub the oil thoroughly before you rinse it with a hose.

Spray Mud off Your WPC Decking

Mud can become a problem for your composite decking if you live in a swampy area. So, you will need a water hose or a power washer to spray the mud off the surface of your plastic wood decking.


Composite decking or WPC decking maintenance is simple. Ensure that you clean your WPC or composite decking regularly and remove mud, mould and dirt.

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