How to Clean Composite Decking

Want to make your composite decking look as good as new? Cleaning it the right way is essential. In this guide, we’ll show you how to clean composite decking effectively to maintain its appearance and longevity. Follow these steps to ensure your deck stays spotless without causing any damage.

Key Takeaways

• Properly prepare your composite deck by removing all items to facilitate a thorough clean and detect potential issues.
• Use a mild soap or a compatible composite cleaner for the right cleaning solution, avoiding harsh chemicals to prevent damage.
• Regularly clean your deck every six months and employ protective measures to maintain its appearance and longevity.

Prepare Your Composite Deck

Before you begin cleaning, prepare your composite deck properly:

• Remove all furniture, plants, and other items from the deck surface.
• This provides easy access to every inch of the decking for a thorough clean.
• Lift and carry these items instead of dragging them to avoid scratching the deck boards.

A clear decking area not only facilitates cleaning but also helps in detecting any potential issues that might need repair. Keeping the deck surface free of obstacles maintains the appearance and longevity of your composite decking. This preparation sets the foundation for an effective cleaning process and helps prevent any accidental damage during the cleaning.

Remove Surface Debris

Once your deck is clear, it’s time to remove surface debris:

• Sweep the deck or use a garden hose to wash away dirt and debris from the composite decking.
• This step is essential as it clears the way for a deeper clean.
• Give special attention to the edges and corners of the deck, as these areas tend to accumulate more dirt and debris.

If your deck is near trees, you might find more debris, such as leaves and twigs. Regularly removing this surface debris can prevent build-up and reduce the risk of mould growth. Check the trims and crevices, and make sure no dirt is left behind. This initial cleaning ensures that the subsequent steps are more effective and less labour-intensive.

Choose the Right Cleaning Products

Choosing the right cleaning products is vital for maintaining your composite decking. Consider the following guidelines:

• Opt for a mild soap, which is specifically designed for composite decking.
• Select a composite cleaner that is compatible with your decking material to avoid any potential damage.
• Avoid using harsh chemicals or solvents that can harm composite decking.

For general cleaning, warm soapy water is highly effective. However, for tougher stains, a combination of vinegar and baking soda can be used, but be cautious with first-generation composite boards, as prolonged exposure to vinegar may cause discolouration. Always rinse areas treated with vinegar promptly to neutralise its acidic effects. Additionally, using soap and water can enhance the cleaning process.

It’s best to follow the manufacturer’s instructions when mixing your cleaning solution. Here are some tips:

• Mix mild soap with warm water as directed.
• Ensure the solution is well-diluted to avoid any potential damage to the decking.
• Prepare the cleaner in a separate container to help avoid unwanted reactions and ensure a consistent mix.

By using the right products and following these tips, you can effectively clean your composite decking.

Mix Your Cleaning Solution

Creating an effective cleaning solution for your composite decking is simple:

• Mix warm water with a household soap to form a gentle yet powerful cleaning agent.
• Ensure the solution is well-diluted according to the manufacturer’s directions to prevent any potential damage to the deck.
• One gallon of diluted cleaner will cover approximately 1,000 square feet, so prepare the right amount based on your deck’s size.

Mix the components thoroughly to ensure the cleaning solution is free of sediment and ready for use. Properly mixed cleaning solutions enhance the cleaning effectiveness and make the process smoother. This step ensures that your deck is ready for a thorough and safe cleaning.

Apply the Cleaning Solution

With your cleaning solution prepared, it’s time to apply it to the deck. Follow these steps:

• Use a soft-bristled brush or a sponge mop to apply warm, soapy water to the deck surface.
• Work in small sections to ensure even application and prevent the cleaner from drying on the surface, which can leave a residue.
• Focus on smaller areas to ensure a more thorough and controlled clean.

Scrub the cleaning solution onto the surface with firm downward pressure, moving in both directions to properly clean and remove dirt and grime effectively. Allow the solution to sit for a few minutes before scrubbing to enhance its cleaning power, ensuring the surface is cleaned thoroughly.

Remember, the key is to keep the surface wet and avoid the cleaner drying out. This method prepares the deck for a deeper clean and ensures that all areas are addressed properly.

Scrub the Deck

Scrubbing the deck is where the elbow grease comes in. Use a soft-bristle brush or a deck brush to scrub along the grain of the boards to prevent damage to the composite decking. This technique ensures that the surface remains smooth and free from scratches.

For tough stains, a mixture of baking soda and vinegar can be very effective. Apply the baking soda paste to the affected area and follow it with a light spray of vinegar. This creates a fizzing reaction that helps lift the stains without scratching the deck surface. Immediate cleaning of food spills is also crucial as it prevents attracting pests and mould growth.

Scrubbing the deck thoroughly ensures all dirt and stains are effectively removed, leaving your composite decking looking clean and well-maintained.

Rinse Thoroughly

After scrubbing, it’s crucial to rinse the deck thoroughly to remove all traces of the cleaning solution. To do this:

• Use a garden hose with a fan attachment or a jet wash to rinse the deck.
• This helps to ensure that all cleaner residues are washed away.
• Prevents any white film or staining from forming on the deck surface.

Pay extra attention to areas where debris might be lodged between the gaps of the boards. Thorough rinsing ensures that no cleaning residue remains, which could otherwise attract dirt or lead to discolouration. This step is essential for a clean and residue-free composite deck.

Dry the Deck

Once rinsed, it’s important to dry the deck completely. Remove any standing water using cotton terry cloths, a sponge mop, or a leaf blower. This not only prevents water damage but also helps you identify any spots that might have been missed during cleaning.

Allow the board decks to air dry fully before placing furniture and other items back on it, regardless of the weather conditions. This ensures that the deck is completely dry and ready for use, preventing any moisture-related issues.

Proper drying is a key step in maintaining the longevity and appearance of your composite decking.

Deep Clean for Stubborn Stains

For those stubborn stains that just won’t budge, a deeper clean might be necessary. A paste made from baking soda can be applied and scrubbed gently to lift the dirt without scratching the deck surface. This method is gentle yet effective for removing tough stains.

If the stains persist, using a low-pressure washer at low pressure can be very effective. Keep the nozzle at least eight inches away from the deck and ensure the pressure does not exceed 1,500 PSI to prevent damage.

While pressure washing, it may also be necessary to use additional cleaning methods for a completely clean composite deck. Taking these extra steps helps tackle even the most stubborn stains and keeps your composite decking looking fresh and clean.

Maintain Regular Cleaning Schedule

Maintaining a regular cleaning schedule is essential for the longevity and appearance of your composite deck. It is recommended to clean your deck at least every six months, with increased frequency if it is exposed to high traffic or trees. This regular maintenance helps prevent the build-up of dirt and debris, reducing the need for deep cleaning.

Using gentle cleaning solutions like ammonia-free soap ensures that the decking remains safe and undamaged. Regularly removing debris such as leaves also minimises the risk of mould and mildew growth.

Staying on top of your cleaning schedule keeps your composite decking looking great with minimal maintenance and minimal effort.

Protect Your Decking

Protecting your composite decking from damage is just as important as cleaning it. To help prevent damage:

• Use furniture pads to prevent scratches from heavy items.
• Avoid dragging furniture across the deck.
• Use lighter furniture to reduce the risk of scratches and make handling easier.

To protect your decking:

• Avoid placing hot items directly on the decking to prevent damage.
• Ensure water drains off the deck surface easily to prevent moisture accumulation.
• Use mats or outdoor rugs in high-traffic areas to help protect the deck from scuff marks.

These protective measures can significantly extend the life and appearance of your composite decking.

Summary

Maintaining your composite decking involves a series of careful steps designed to keep it looking its best and prolong its life. From preparing the deck and removing surface debris to choosing the right cleaning products and applying them correctly, each step is crucial. Regular scrubbing, thorough rinsing, and proper drying are essential parts of the process, especially when dealing with stubborn stains.

By following a regular cleaning schedule and taking steps to protect your deck, you can enjoy a beautiful, low-maintenance outdoor space for years to come. Remember, the key to a pristine composite deck is consistent care and the right cleaning techniques. So, take the time to maintain your deck, and it will reward you with lasting beauty and durability.

Frequently Asked Questions