What is the best way to maintain composite decking?

Composite decking is a popular alternative to traditional wood decking. It is made of a blend of plastic and wood fibers or other filler materials. The main advantage of composite decking is its durability and low maintenance requirements compared to wood. However, all decking materials require some degree of care to keep them looking good over time. Proper cleaning and maintenance is key to preserving your composite deck investment.

What are the benefits of composite decking?

Composite decking offers several benefits over traditional wood:

• Durability – Composite materials are highly resistant to problems that affect wood like rotting, splintering, cracking warping and insect infestation.
• Low maintenance – Composite requires no staining, sealing or painting. It resists mold and mildew growth and won’t leach chemicals.
• Colorfast – The color runs throughout the material so it won’t fade or gray like wood.
• No splinters – Composite decking has a smooth finish and won’t splinter like wood.
• Stain resistance – Drinks and food won’t stain or damage composite like it can with wood.
• Slip resistance – Composite decking provides excellent traction, even when wet.
• Affordable – Composite costs a bit more upfront than wood but saves money over time with almost no maintenance needed.

With just periodic cleaning, composite decks can retain their like-new appearance for years. Follow these tips to keep your composite deck looking its best.

Sweep regularly

Plan to sweep your composite deck at least once a week in high traffic areas. This will prevent a buildup of pollen, dirt, leaves and other debris that can stain the decking surface over time. Use a broom with soft bristles. Avoid stiff-bristled brushes that could potentially scratch the deck.

Clean spills promptly

One advantage of composite decking is that it resists permanent staining from food and beverages. However, you’ll still want to promptly clean up spills to prevent temporary staining or buildup of slippery organic materials. Clean food or drink spills as soon as you notice them with a damp cloth or soft brush and mild detergent. Avoid harsh cleaners that could etch or discolor the decking.

Deep clean occasionally

In addition to weekly sweeping, plan to deep clean your composite deck a couple times per year. This will remove ingrained dirt and grime that can dull the deck’s appearance. Here are some tips for deep cleaning:

• Use a composite deck cleaner or mild detergent in warm water. Avoid bleach and acidic cleaners that can discolor composite.
• Scrub the deck thoroughly with a soft brush. Use a pressure washer on low pressure to rinse.
• For stubborn spots, use a composite deck brightener after the initial deep cleaning.
• Rinsing with a garden hose should be sufficient. Avoid excessive high pressure that could damage the deck.
• Allow the deck to dry completely before resuming use.

Following the manufacturer’s recommendations for cleaning products will help prevent damage to your deck.

Remove leaves and debris

It’s important to keep your composite deck clear of accumulated organic debris. Wet leaves, twigs, grass clippings and other yard waste can stain and damage composite decking if allowed to remain on the surface. Stay on top of removing these items before they have a chance to break down. Take note of areas where debris tends to collect and be diligent about cleaning there.

Re-coat or power wash periodically

For older or heavily used composite decks, a periodic deep power washing and re-coating can help restore it to like-new condition. Use a composite deck coating designed for recoating faded or stained surfaces. Lightly sanding or etching the deck first will help the new coating adhere properly. Always follow the manufacturer’s application instructions when recoating a deck.

Avoid excessive heat and sunlight

All decking materials are subject to fading when exposed to years of UV radiation and sunlight. You can help minimize premature fading by keeping your composite deck out of excessive direct sunlight. Strategically placed shade trees, awnings and umbrellas will limit sun exposure. Also avoid placing hot tub heaters and reflective surfaces like low-emissivity glass near the deck. The intense heat buildup can damage composite.

Inspect for damage

Periodically inspect your composite deck for signs of damage or excessive wear. Look for loose fasteners, popped nails, warped or buckled boards, and cracking or splintering. Address these issues promptly to prevent additional safety hazards or damage. Most composite decking problems can be fixed with basic tools. Replace any damaged boards that cannot be repaired.

Use furniture pads and deck protector

Help prevent scratches, dents and surface damage by using padding under deck furniture. Use outdoor furniture with padded feet or place furniture pads under chair and table legs. Also consider a breathable deck protector under grills, play equipment or other heavy objects. Take care not to let the deck protector trap moisture against the decking.

Control weed growth

Weeds sprouting between deck boards or around posts can look unsightly. These can be manually pulled or carefully sprayed with a natural herbicide to keep your deck looking neat and tidy. Just take care that the herbicide won’t stain the decking. Avoid using a metal weed blade scraper that could damage the deck surface.

Conclusion

With routine care and maintenance, a quality composite deck should retain its beauty for many years. Sweep and wash periodically, promptly clean spills and debris, re-coat faded areas occasionally and make minor repairs as needed. Using furniture pads and taking steps to minimize direct sunlight will also help maximize the lifespan of your composite decking investment. Follow the manufacturer’s recommendations and your composite deck will stay looking like new for decades.