Mold Mitigation

What Can I Do to Prevent Mold from Growing in My Home?

Since mold needs a food source and moisture to grow, the best thing you can do is to prevent moisture problems that allow mold to grow.

There are many sources of information listed at the bottom of this fact sheet that explain in more detail how to prevent moisture problems, but here are a few things to get you started:

  • Maintain lower levels of humidity in your home (preferably between 30-50%) by: venting bathrooms and dryers to the outside; using air conditioners and de-humidifiers; increasing ventilation by adding crawlspace and attic vents; using exhaust fans when cooking, dishwashing, and cleaning, etc.
  • Add insulation to reduce the potential for condensation on cold surfaces such as windows, pipes, exterior walls, roofs, or floors.
  • Inspect your home regularly for indications and sources of indoor moisture such as leaking pipes, appliance hoses, showers, tubs, sinks and toilets. Replace plastic hoses with steel-reinforced hoses. Check windows, doors, attics and ceilings for leaks or evidence of water stains or odors, particularly after rains. Fix plumbing, flashing, and roof leaks right away.
  • Don’t carpet bathrooms,  kitchens or other areas prone to moisture. Clean bathrooms often with mold killing products and keep surfaces dry.
  • Cover dirt in crawlspaces with a moisture barrier plastic sheeting.
  • Prevent water from entering basements and crawlspaces by repairing holes and cracks in walls and foundation. Use landscaping to direct water away from your foundation.
  • Clean and maintain your gutters and make sure drainpipes carry water several feet away from your home.
  • Watch your utility bills. An abnormally high water bill could signal a water leak.

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