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How to Prepare Your Deck for North Carolina's Humid Summers

  • Jun 18
  • 2 min read

How to Prepare Your Deck for North Carolina's Humid Summers


North Carolina summers are known for long days, high humidity, and sudden thunderstorms. While that’s perfect for BBQs, pool days, and sunset views, it can also take a toll on your deck if it’s not properly maintained.


Whether your deck is wood, composite, or bamboo, here’s how to how to prepare your deck for North Carolina's humid summers and get it ready to handle the heat and humidity so it stays safe, beautiful, and enjoyable all season long.


patio with pergola cover

1. Deep Clean the Surface


Humidity and moisture can lead to mold, mildew, and algae buildup—especially on wood or older decks.


  • Sweep off debris, leaves, and dirt.

  • Use a deck cleaner or a mixture of water + oxygen bleach for natural wood.

  • For composite or bamboo (like Moso Bamboo), use a cleaner designed specifically for those materials.



Avoid power washing natural wood unless you’re experienced—too much pressure can damage it.


2. Inspect for Damage


Summer storms and humidity can worsen existing problems, so check for:


  • Cracked or splintered boards

  • Loose nails or screws

  • Signs of rot or mold, especially in shaded or damp areas


Replace damaged boards or fasteners before humidity and rain make the issues worse.


patio with table shaded umbrella

3. Seal or Stain (If Needed)


If you have a pressure-treated wood deck, sealing it helps prevent water penetration and extends its life. Most decks should be sealed every 1–3 years, depending on exposure and usage.


  • Water test: Sprinkle water on your deck. If it beads up, you're good. If it soaks in, it's time to reseal.

  • Choose a UV-resistant stain to protect against the intense Southern sun.


Composite decking like Trex or TimberTech doesn’t need sealing but still benefits from seasonal cleaning.




4. Check Drainage and Airflow


Trapped moisture is your deck’s enemy. Make sure:


  • There’s space between decking boards for water to escape

  • Your gutters and downspouts aren’t dumping water directly near the deck

  • There’s airflow underneath the deck to allow it to dry out

composite decking steps with patio furniture

5. Protect Your Furniture and Décor


Humidity can affect outdoor cushions, rugs, and furniture.


  • Use moisture-resistant outdoor fabrics

  • Add a deck box to store items during storms

  • Use breathable covers instead of plastic tarps, which trap moisture


6. Add Shade and Comfort


Beat the heat with additions that make your deck more enjoyable all summer long:


  • Pergolas with climbing plants

  • Retractable awnings or shade sails

  • Outdoor ceiling fans for covered decks


At Jakes Custom Decks and Patios we specialize in building custom outdoor living spaces that include all of the above, so you can stay cool, comfortable, and stylish in any weather.


Enjoy Summer Without the Stress


A little prep goes a long way in protecting your deck from North Carolina’s hot, humid summers.


At Jakes Custom Decks and Patios, we use weather-resistant materials, including eco-friendly Moso Bamboo, low-maintenance composites, and pet-safe options built to stand up to NC’s climate. Plus, we’re happy to help with maintenance, repairs, or complete transformations.


Ready to enjoy summer on a deck built for the Carolina heat? Reach out to JCSCNY.COM today for a consultation and let’s make it summer-ready together!

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