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How to Stop Wood Rot from Spreading on Your Deck

January 08, 20253 min read

Wood rot can quickly transform your beautiful deck into a safety hazard, especially in areas with challenging weather conditions like Kansas. Fortunately, with timely action and expert care, you can stop wood rot from spreading and restore your deck to its former glory. At Bernard Exteriors LLC, we specialize in deck restoration and wood rot repair for homeowners in Kansas, including Lee’s Summit and the surrounding region. Here’s how to address wood rot effectively and prevent it from returning.

What Causes Wood Rot on Decks?

Wood rot is primarily caused by moisture and fungi that thrive in damp environments. Here are some common factors:

  • Moisture Exposure: Prolonged exposure to rain, humidity, and snow can saturate wood fibers, creating an ideal environment for decay.

  • Poor Ventilation: Limited airflow under and around the deck traps moisture, accelerating wood rot.

  • Kansas Climate: Kansas’s variable weather, from heavy rains to intense heat, can exacerbate wood deterioration.

Signs of Wood Rot on Your Deck

Identifying wood rot early is crucial to prevent extensive damage. Look for these signs:

  • Discoloration: Darkened or grayish wood patches.

  • Soft Spots: Wood that feels spongy or crumbles when touched.

  • Cracks and Crumbling Edges: Splitting wood or broken corners.

  • Musty Odors: Mold or mildew smells emanating from the deck.

Steps to Stop Wood Rot from Spreading

Follow these steps to tackle wood rot and protect your deck:

1. Identify and Remove Affected Areas

  • Inspect Your Deck: Thoroughly examine the surface, support beams, and joints for rot.

  • Mark Affected Sections: Clearly identify areas needing removal.

  • Remove Rotted Wood: Use a chisel, saw, or oscillating tool to cut away damaged sections.

2. Treat the Remaining Wood

  • Apply a Wood Hardener: Strengthen the surrounding wood and prevent further decay.

  • Use Fungicide: Kill any remaining fungal spores to stop the spread.

  • Seal the Surface: Coat with a waterproof sealant to protect against moisture.

3. Replace Damaged Sections

  • Use Treated Wood: Replace rotted sections with pressure-treated wood or composite materials for added durability.

  • Ensure Proper Installation: Secure the new wood tightly to avoid gaps where moisture can seep in.

4. Ensure Proper Drainage and Ventilation

  • Address Drainage Issues: Ensure water flows away from the deck.

  • Improve Airflow: Install vents or raise the deck slightly to promote ventilation.

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Preventing Future Wood Rot

Keeping your deck in top condition requires proactive maintenance. Here are some tips:

  • Regular Cleaning: Sweep away debris and wash the deck to prevent moisture buildup.

  • Apply Sealant: Reapply waterproof sealant every 1–2 years to create a barrier against moisture.

  • Inspect After Storms: Check for damage or pooling water after heavy rains or snow.

  • Repair Early: Address small cracks or loose boards promptly to avoid larger problems.

Why Choose Bernard Exteriors LLC?

At Bernard Exteriors LLC, we understand the unique challenges Kansas homeowners face in maintaining their decks. Here’s why we’re the trusted choice for wood rot repair:

  • Local Expertise: Our team is experienced in handling wood restoration tailored to Kansas’s climate.

  • Comprehensive Services: From minor repairs to complete deck overhauls, we’ve got you covered.

  • High-Quality Materials: We use durable, rot-resistant wood and sealants to ensure long-lasting results.

  • Customer-Centric Approach: Transparent pricing and a satisfaction guarantee set us apart.

Contact Us

Don’t let wood rot compromise the safety and beauty of your deck. Contact Bernard Exteriors LLC today to schedule a free consultation for professional deck restoration services in Kansas, including Lee’s Summit and the surrounding areas. Let’s protect your investment and enhance your outdoor space together.


Learn about wood rot and prevention

Jereme Bernard

Owner of Bernard exteriors in Lee's summit

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