How to Prevent Mold on Decks

Prevent Mold on Decks

Mold on decks can be unsightly and can cause heath problems. Mold is caused my microorganisms. When those spores find a suitable living environment — one with moisture and a food source — they begin to reproduce and cause discoloration and health risks. Follow these steps to minimize your mold problems.

KEEP YOUR DECK DRY

  • Mop up standing water.
  • Remove awnings or other coverings for quicker drying.

CLEAN YOUR DECK REGULARLY

  • Sweep your deck on a regular basis to remove mold spores and food sources, such as pollen and dirt.
  • Power wash your deck (at no more than 1000 to 1200 psi) to forcefully remove spores.
  • Clean the underside of your deck if you’re prone to mold. Mold thrives in darker areas.

CONSIDER A WATER-BASED STAIN

  • Water-based stains are extremely resistant to mold and are easier to clean and maintain.
  • Stains containing zinc nano-particles, such as Defy or Behr, will have better natural resistance to mildew.
  • Beware of oil-based stains. The resins used in oil-based stains often contain materials that are food to mold, mildew and algae. Deal with potential mold risks on a consistent basis to better preserve your deck.

 

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