How To Clean a Deck Stain from Mold & Mildew 5/5 (1)

Cleaning Deck Stain with Mold

Mold and mildew can cause aesthetic, safety, and health issues when they grow on top or within the wood of decks. Often time mildew and mold will grow on top of your deck stain and you would like to remove it, but not harm or hinder your deck stain coating. When this happens it is not suggested to use a regular Wood or Deck Cleaner or Wood Deck Stain Stripper unless you plan on reapplying another coat of your deck stain.

Key takeaways
  • Use a Mildew Cleaner and Preventer to remove mold without damaging your existing deck stain coating.
  • Avoid using a regular Wood Deck Cleaner or Stain Stripper unless you plan to reapply your deck stain.
  • RAD Guard Mildew and Algae Cleaner and Preventer removes black mildew and green algae and prevents return for 1 to 2 years.
  • Cleaning with the right product keeps your deck looking great between reapplication years without stripping the stain.

How to Clean Mildew From Deck Stains

The best option is to use a Mildew Cleaner and Preventer that will clean and prevent the stains from returning but will not harm your wood/deck stain coating. This will keep your wood and decks looking better in the off years between reapplication of the wood 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

Mold Mildew on Deck Stain

Mold & Mildew on Deck Stain

More information on Cleaning Deck Stains with Mold & Mildew

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Scott Paul ~ Restoring Wood & Decks Since 1993 Owner
Scott Paul is the founder and owner of DeckStainHelp.com. He has worked in exterior wood and deck restoration since 1993, when he started Oakland Pressure Wash in Metro Detroit, and has restored more than 10,000 decks over three decades in the field. Everything reviewed here is tested the way a contractor tests it: applied to real wood, in real weather, and watched over multiple seasons. No manufacturer pays for a review, a rating, or a placement on this site. Read Scott's full bio and the list of sites he operates.

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