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How to Reduce Condensation in Garages

Condensation occurs when warmer, moist air comes in contact with a surface, such as a window or a concrete floor, that has a lower temperature. The moisture builds up, such as when dew forms on the grass in the early hours of the day. If left unattended, a condensation issue can be an ideal setting for mould formation. Preventing condensation in a garage is possible to ensure that its contents do not become susceptible to water damage or mould propagation.

Place a dehumidifier in the garage to draw in the moist air lingering in the structure. The liquid collects in a basin that can be removed and emptied. The correct size of the dehumidifier depends on the square footage of the garage.

Place a space heater in the garage. Turn the heater on during the times of the year when condensation is an issue, such as rainy periods or springtime.

Keep a window in the garage open during periods of heavy condensation. This helps promote air flow throughout the garage, which will lessen the amount of condensation.

Install passive vents in the garage roof. These vents allow airflow in the space when it is not being used, lessening condensation.

Install insulation. This will keep the walls of the garage warmer, which will cut down on the formation of condensation.

Warning

Don't leave a space heater running unattended.

Things You'll Need

  • Dehumidifier
  • Space heater
  • Roof vents
  • Insulation
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About the Author

Residing in Chippewa Falls, Wis., Jaimie Zinski has been writing since 2009. Specializing in pop culture, film and television, her work appears on Star Reviews and various other websites. Zinski is pursuing a Bachelor of Arts in history at the University of Wisconsin.