Deck Stain to Prevent Mildew? 5/5 (1)

Best deck stain to prevent mildew?

The best type of deck stain to prevent mildew is a water-based deck stain. The best water-based deck stain to prevent mildew is Restore-A-Deck. Some oil-based deck stains have added mildewcide, but not all. Check the label of the brand and color you want to make sure it is appropriate for a wetter climate. The best oil-based deck stains with mildewcide are TWP and Armstrong Clark semi-transparent penetrating deck stains. A deck with existing mildew must be thoroughly cleaned before applying new deck stain in a moist environment.

Key takeaways

Water-based deck stains are the best option for preventing mildew, with Restore-A-Deck being the top recommended product.
Not all oil-based deck stains contain mildewcide, so always check the label before buying, especially in wetter climates.
The best oil-based options with mildewcide are TWP and Armstrong Clark semi-transparent penetrating deck stains.
Always thoroughly clean existing mildew from your deck before applying any new stain in a moist environment.
RAD Guard Mildew and Algae Cleaner and Preventer removes black mildew and green algae stains and keeps them away for 1 to 2 years.
Homeowners in wet climates should pay close attention to product labels to confirm mildew resistance before purchasing any deck stain.

How to Prevent Mildew on Deck Stains

Pro Tip: The RAD Guard will remove the black mildew and green algae stains from your wood and deck stains and will prevent them from returning for 1-2 years: RAD Guard Mildew and Algae Cleaner and Preventer

More information on coping with mildew on decks in a wet climate

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Scott Paul ~ Restoring Wood & Decks Since 1993 Owner

As an article and comment contributor to the site, Scott has been around the pressure washing industry since attending college. In 1993 he started his first company called Oakland Pressure Wash specializing in exterior pressure washing and deck staining. That company evolved into OPW L.L.C. shortly thereafter concentrating more on exterior wood and deck restoration. Scott and his Deck Cleaning Michigan company have restored over 10,000 decks in the Metro Detroit area since the early years. He has become an authority in the deck restoration industry and has contributed to numerous wood restoration forums and informative sites. All the products he suggests through this site are sold through online sites and in retail stores, allowing the consumer to choose their own means of purchase. Scott’s eCommerce sites do sell many top brands he endorses and if you appreciate any of the help he has offered then feel free to purchase from one of them.

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