How to Clean Composite Decking (2024 Guide)

As outdoor living spaces become more popular, composite decking has emerged as a top choice for homeowners due to its durability, low maintenance, and aesthetic appeal. However, like any outdoor surface, composite decking requires proper cleaning to maintain its beauty and longevity. In this guide, you’ll discover the most effective methods to clean composite decking, ensuring your deck remains pristine throughout the seasons.

What is Composite Decking?

Composite decking is a man-made building product that includes an approximate mix of recycled wood fibers and plastic. This combination provides a durable, low-maintenance surface that can withstand the elements better than traditional wood decking. While composite decks are resistant to rot and insects, they are not entirely maintenance-free and do require regular cleaning to prevent buildup of dirt and grime.

Why Regular Cleaning is Important

Regular cleaning of composite decking not only enhances its appearance but also extends its lifespan. Dirt, debris, and organic materials can accumulate on the surface, leading to mold and mildew growth. These elements can cause staining and can become slippery, posing a safety hazard. By maintaining a regular cleaning schedule, you ensure your deck stays safe, clean, and visually appealing.

Steps to Clean Composite Decking

Gather Your Cleaning Supplies

Before you begin, make sure you have the following supplies:

• A soft-bristle brush or broom
• A garden hose with a spray nozzle
• A bucket of warm water
• Mild dish soap or a specialized composite deck cleaner
• A soft cloth or sponge

Sweep Away Loose Debris

Start by sweeping the deck to remove loose dirt, leaves, and other debris. This prevents scratching the surface during the cleaning process and allows for a more thorough wash.

Prepare Your Cleaning Solution

Fill a bucket with warm water and add a small amount of mild dish soap or a specialized composite deck cleaner. Avoid using harsh chemicals or bleach, as they can damage the deck’s surface.

Scrub the Deck

Using the soft-bristle brush, scrub the deck with the cleaning solution. Work in small sections, applying gentle pressure to remove dirt and grime. Be sure to scrub in the direction of the grain to avoid damaging the composite material.

Rinse Thoroughly

After scrubbing, rinse the deck thoroughly with a garden hose. Make sure all soap residue is removed, as leftover soap can attract dirt. If you have a pressure washer, you can use it on a low setting, but be cautious not to damage the deck by using too much pressure.

Spot Clean Stains

For tough stains, such as oil or grease, you may need to use a more concentrated cleaner. Apply the cleaner directly to the stain and scrub with a soft cloth or sponge. Rinse thoroughly after spot cleaning.

Maintenance Tips for Composite Decking

Regular Sweeping

Keep your deck free of leaves and debris by sweeping regularly. This simple step can prevent buildup that can lead to mold and mildew growth.

Annual Deep Cleaning

Perform a deep cleaning at least once a year. This involves a more thorough scrubbing and inspection of the deck for any damage or wear.

Avoiding Damage

Place protective pads under furniture legs to prevent scratching, and avoid dragging heavy objects across the deck. Also, avoid using metal shovels or sharp tools to remove snow or ice.

Common Mistakes to Avoid

Using Harsh Chemicals

Avoid using bleach or other harsh chemicals, as they can strip the deck’s finish and cause discoloration. Stick to mild soaps or cleaners specifically designed for composite decking.

Ignoring Stains

Address stains promptly. The longer a stain sits, the harder it will be to remove. Regular cleaning helps prevent stains from setting in.

High-Pressure Washing

While pressure washers can be effective, using them on a high setting can damage your deck. Always use a low-pressure setting and keep the nozzle at least 12 inches from the surface.

In Summary

Cleaning your composite decking is a straightforward process that, when done regularly, will keep your outdoor space looking its best. By following these steps to clean composite decking and avoiding common mistakes, you can ensure your deck remains a beautiful and functional part of your home.

For more detailed advice or to schedule a professional cleaning, contact us.