How to Waterproof Wood: Protecting Your Investment

Waterproofing your wood surfaces is crucial to extending the lifespan of decks, siding, and other outdoor structures. Without proper protection, wood can warp, split, cup, and rot due to exposure to moisture, leading to expensive repairs and replacements.

Whether you’re working on a deck, fence, or wood siding, ensuring your wood is waterproofed correctly can prevent these costly problems and keep your wood looking beautiful for years to come.

In this blog post, we’ll explore the best ways to waterproof wood and why DeckWise WiseCoat, a water-based waterproof sealer, is the ultimate solution for keeping your wood in pristine condition.

Why Waterproofing Wood is Important

Wood is a natural, porous material that readily absorbs water. When left unprotected, moisture can cause:

  • Cupping and Warping: When wood absorbs too much water, it can change shape, leading to uneven surfaces and potential structural issues.
  • Splitting and Cracking: Water damage can weaken the wood, causing it to crack or split over time.
  • Rot: Prolonged exposure to moisture can cause wood to decay, leading to rot, mold growth, and overall structural weakness.


To combat these issues, waterproofing your wood surfaces is essential for maintaining their integrity and appearance.

Methods to Waterproof Wood

There are several methods for waterproofing wood, each with its own advantages:

Oil-Based Sealers: These are traditional options for waterproofing wood. While effective, they tend to leave a film on the surface, which can wear off and flake over time, especially in high-traffic areas.

Top Coat Deck Finish Peeling Off


Varnishes and Polyurethanes: These provide a hard, protective coating. However, they are prone to cracking and peeling, especially when exposed to fluctuating weather conditions.

Water-Based Sealers: These modern, eco-friendly solutions penetrate deep into the wood fibers, creating a waterproof barrier from within without leaving a thick film on the surface. Opposed to oil based finishes and varnishes that leave top coat films that eventually peel and flake off, water-based finishes like DeckWise WiseCoat® do not flake off.

Of these options, water-based sealers are becoming increasingly popular due to their long-lasting protection and low environmental impact.

The Benefits of Using DeckWise WiseCoat®

When it comes to choosing the right waterproofing product, DeckWise WiseCoat® stands out as an industry leader. Here’s why:

  • Water-Based Formula: Unlike oil-based sealers or varnishes, WiseCoat is a water-based penetrating sealer, which means it works by absorbing deep into the wood fibers. This prevents water intrusion from within, providing superior protection against moisture without leaving a film that can peel or flake off.
  • No Top Coat to Flake: Traditional waterproofing products often leave a glossy, top-layer finish. While this might look nice initially, these top coats are prone to flaking and peeling over time. WiseCoat’s penetrating formula means there’s no top coat to worry about, giving your wood a natural look while still being protected.
  • Prevents Cupping, Warping, and Splitting: WiseCoat helps safeguard your wood from the damaging effects of moisture, reducing the risk of cupping, warping, and splitting caused by water absorption.
  • Eco-Friendly & Safe: WiseCoat’s water-based formula is also more environmentally friendly than oil-based alternatives. It’s non-toxic and safe to use around plants, pets, and children.
  • Long-Lasting Protection: WiseCoat offers up to 6 years of protection on horizontal surfaces (such as decks) and up to 10 years of protection on vertical surfaces (such as siding or fences), making it an excellent investment for homeowners looking to protect their wood long-term.
DeckWise WiseCoat Waterproofing Repelling Water


How to Apply DeckWise WiseCoat®

Applying WiseCoat is straightforward and can be done as a DIY project. Here’s a simple step-by-step guide:

  1. Clean the Wood Surface: Before applying WiseCoat, make sure your wood is clean and free from any dirt, grime, or previous finishes. A thorough cleaning ensures that the sealer can penetrate the wood effectively.
  2. Allow the Wood to Dry: Wood should be completely dry before applying any waterproofing product. This ensures that the sealer penetrates properly into the wood fibers.
  3. Apply the Sealer: Using a brush, roller, or sprayer, evenly apply WiseCoat across the wood surface. Make sure to cover all areas, including edges and ends where moisture is most likely to penetrate.
  4. Let it Soak In: Since WiseCoat is a penetrating sealer, give it time to absorb into the wood. The wood will soak up the product, ensuring deep, long-lasting protection.
  5. Apply a 2nd Coat: A second coat is recommended by the manufacturer while the first coat is still wet. Follow the product’s instructions to determine how and when to apply the second coat.
  6. Enjoy Long-Lasting Protection: Once applied, WiseCoat will protect your wood surfaces from moisture damage for years to come, with minimal upkeep required.

WiseCoat Color Options

DeckWise WiseCoat® is available in several color options that you can mix into the gallon of clear WiseCoat.


WiseCoat Colors


Conclusion: DeckWise WiseCoat for Unmatched Wood Protection

Waterproofing wood is a necessary step to preserve its natural beauty and structural integrity. With the right product, you can avoid the common issues that come with moisture exposure, such as warping, cracking, and rotting. DeckWise WiseCoat is an excellent choice for homeowners looking for a reliable, eco-friendly, and easy-to-apply waterproofing solution.

By choosing WiseCoat, you can protect your deck, siding, or fence from the harmful effects of moisture without worrying about peeling or flaking coatings. Whether you’re preparing for harsh weather or just want to extend the life of your wood, DeckWise WiseCoat offers long-lasting, premium protection you can count on.

Ready to Protect Your Wood Surfaces?

Visit AdvantageLumber.com to explore DeckWise WiseCoat and other premium waterproofing products. Keep your wood looking beautiful and resilient, season after season!

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