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A Comprehensive Guide to Spring Annual Cleaning for Your Composite or PVC Deck

posted on Friday, February 16, 2024 in Blog

As the vibrant colors of spring start to blossom, it's the perfect time to rejuvenate your outdoor living space, particularly your composite or PVC deck. Over the course of a year, decks can accumulate dirt, grime, and mildew, impacting both their aesthetic appeal and longevity. This comprehensive guide will walk you through the steps to ensure your deck is in top-notch condition for the spring and beyond.

Materials Needed:

  1. Broom or brush with soft bristles
  2. Mild detergent (Dawn or other similar dish soap) or specialized deck cleaner (Timbertech has their own specific)
  3. Soft cloth or sponge
  4. Power washer (optional, do not exceed 3100 PSI)
  5. Bucket
  6. Garden hose
  7. Non-abrasive cleaning pads
  8. Protective gear (gloves, safety goggles)

Step 1: Clear the Deck

Before diving into the cleaning process, remove any furniture, planters, or debris from the deck surface. Sweeping the deck with a broom or brush will help clear away loose dirt and leaves. Check the gaps between the deck boards and if you have a lot of natural debris, try to clear it. You can use an old metal hanger to help clear it or even a small hook you can screw into the end of a broom stick.

Step 2: Pre-wash Inspection

Take a moment to inspect the deck for any stains, mold, or mildew spots. These areas may require special attention during the cleaning process. Additionally, check for any loose boards or screws that may need tightening or replacement. If you see loose clips, lightly tighten them down and do not overdrive the clip. If you find any Cortex plugs that are loose or gone, simply contact us for assistance.

Step 3: Gentle Cleaning Solutions

Mix a mild detergent with water in a bucket, or use a specialized composite or PVC deck cleaner according to the manufacturer's instructions. Apply the solution to the deck using a soft cloth or sponge, focusing on areas with stains or discoloration. Allow the cleaning solution to sit for the recommended time, usually around 10-15 minutes.

Step 4: Scrubbing

For stubborn stains or mildew, use a non-abrasive cleaning pad to gently scrub the affected areas. Be cautious not to use abrasive materials, as they can damage the deck's surface.

Step 5: Rinse Thoroughly

After the cleaning solution has had time to work its magic, rinse the deck thoroughly with a garden hose. If available, a power washer with a gentle setting can be used to remove any remaining residue. Make sure to keep the nozzle at a safe distance to avoid causing damage. 

Step 6: Post-Cleaning Inspection

Once the deck is clean, conduct a final inspection to ensure all stains and dirt have been removed. If necessary, repeat the cleaning process for persistent spots.

Step 7: Maintain

Regularly sweeping away debris and conducting light cleanings throughout the year will help maintain the deck's pristine appearance.

By dedicating time to a thorough spring annual cleaning, you can revitalize your composite or PVC deck, ensuring it remains a welcoming outdoor oasis for family and friends. Follow these steps, and your deck will be ready to withstand the elements and provide enjoyment for seasons to come.

All Better Builder’s customers receive a warranty e-mail with detailed cleaning instructions from the manufacturer. These can be found at the following links:




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