Cleaning a Trex deck with a power washer is an efficient way to maintain the look and longevity of your outdoor space. Trex is a popular brand of composite decking that requires a little extra care to keep it looking fresh. Using a power washer can save time and energy when cleaning, but it’s important to do it correctly to avoid damaging the surface. This guide will walk you through the steps to safely and effectively clean your Trex deck with a power washer.
Why Clean Your Trex Deck?
Before we dive into the cleaning process, let’s first understand why it’s important to regularly clean your Trex deck. Over time, decks can accumulate dirt, algae, mold, mildew, and stains from food, beverages, and the environment. Cleaning your deck not only improves its appearance but also helps prevent the growth of harmful bacteria and fungi. Additionally, regular cleaning extends the life of your Trex deck by maintaining its protective surface.
What You’ll Need
Power Washer
A power washer, also known as a pressure washer, is the most effective tool for cleaning a Trex deck. It uses high-pressure water to remove dirt and stains. However, it’s important to select the right pressure setting and nozzle to prevent any damage to the decking surface.
Cleaning Solution
You will need a cleaning solution designed for composite decks. These solutions are specially formulated to clean Trex without causing damage. You can also make a homemade solution by mixing warm water and a mild detergent.
Safety Gear
While cleaning with a power washer, safety is essential. Wear protective eyewear, gloves, and long sleeves to avoid injury from high-pressure water and cleaning chemicals.
Scrub Brush
A scrub brush may be needed for any areas that need extra attention, such as stains or spots that the power washer couldn’t remove completely.
Garden Hose
In addition to the power washer, a garden hose is useful for rinsing the deck after using the washer and for preparing the deck before cleaning.
Step-by-Step Guide to Cleaning Your Trex Deck with a Power Washer
Step 1: Prepare the Area
Before you start washing your Trex deck, make sure the surrounding area is clear. Remove any furniture, planters, or items from the deck to ensure that you have enough space to move around. Cover any nearby plants or shrubs with plastic sheets to protect them from the cleaning solution and high-pressure water.
Next, check the weather forecast. It’s best to clean your deck on a dry day with no rain expected, as wet conditions can make it harder for the deck to dry properly.
Step 2: Choose the Right Power Washer
Not all power washers are the same. Trex decks require a moderate pressure setting to ensure the composite material isn’t damaged. A power washer with a pressure setting between 1,200 and 1,500 PSI is ideal for cleaning composite decking like Trex. Higher pressure settings may cause the surface to splinter or degrade over time.
For added control, use a power washer with adjustable pressure settings or a variable nozzle. This will allow you to tailor the pressure to suit different areas of your deck.
Step 3: Attach the Appropriate Nozzle
Most power washers come with different nozzles for various purposes. For composite decking, you should use a nozzle with a 25 or 40-degree angle. A wide-angle nozzle disperses the water more gently, ensuring that the high pressure won’t damage the surface.
Make sure the nozzle is securely attached to the power washer wand before you begin.
Step 4: Wet the Deck Surface
Start by lightly spraying the deck with water using the garden hose. This helps to loosen dirt and debris and ensures that the deck is not too dry when the cleaning solution is applied. It also reduces the chances of damaging the deck when you use the power washer.
Step 5: Apply the Cleaning Solution
Next, apply the cleaning solution to the Trex deck. You can use a store-bought cleaner or a homemade solution. If you are using a commercial cleaner, follow the manufacturer’s instructions for dilution and application.
For homemade solutions, mix warm water with a mild dish detergent or a specialized composite deck cleaner. Use a mop or a sponge to spread the solution evenly across the deck. Make sure to cover all surfaces, including between the boards.
Allow the cleaning solution to sit for a few minutes to break down dirt, stains, and mold. This step is essential for tough stains or mildew that might need extra attention.
Step 6: Power Wash the Deck
Now it’s time to use the power washer. Stand about two feet away from the surface of the deck, holding the wand at a slight angle. Begin washing from one end of the deck and move steadily along its length. Work in small sections, ensuring that each area is cleaned thoroughly.
Keep the nozzle moving while spraying to avoid focusing too much pressure on one spot. This will help to prevent any damage to the composite material. Start from the outer edge of the deck and work your way inward. For stubborn stains, you may need to move in a back-and-forth motion to ensure they are fully removed.
Step 7: Focus on Stubborn Spots
Some areas may require extra attention. If you find spots or stains that the power washer hasn’t removed, use a scrub brush and a bit more cleaning solution to scrub the area gently. After scrubbing, rinse the spot with the power washer to remove the cleaning solution and dirt.
Step 8: Rinse the Deck
After you’ve washed the entire deck, it’s important to rinse off any leftover cleaning solution. Use your garden hose to rinse the deck thoroughly. This step ensures that no soap residue remains, which could lead to a slippery surface or attract more dirt.
Step 9: Dry the Deck
Finally, let the deck dry completely before replacing any furniture or items. Drying the deck thoroughly prevents the growth of mold and mildew. You can speed up the drying process by using a towel to wipe down the surface or simply allowing it to air dry.
Tips for Maintaining Your Trex Deck
Regular Cleaning
Regular cleaning of your Trex deck will help it stay in great condition. A good rule of thumb is to clean it at least twice a year, once in the spring and once in the fall, depending on your climate and how much debris the deck accumulates.
Prevent Mold and Mildew
Mold and mildew can be a problem for composite decking, especially in damp or shaded areas. Regular cleaning and ensuring that water drains properly from the deck will help prevent mold growth. If you live in a particularly humid climate, you may need to clean your deck more frequently.
Protect Your Deck
Consider applying a protective composite deck stain or sealer to your Trex deck to provide an extra layer of protection against the elements. These products can help maintain the color and texture of your deck, keeping it looking fresh longer.
Avoid Harsh Chemicals
Avoid using harsh chemicals, bleach, or abrasive cleaners on your Trex deck, as they can damage the surface and strip away its protective coating. Always use cleaners that are designed for composite decks to ensure the best results.
Conclusion
Cleaning your Trex deck with a power washer is an easy and effective way to keep it looking great. By following the proper steps and using the right equipment, you can safely remove dirt, stains, and mold while preserving the integrity of your deck. Regular maintenance, combined with careful cleaning, will extend the life of your Trex deck and ensure that it remains a beautiful part of your home for years to come.