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Mold Growth on Furniture - Causes & Solutions

Mold growth due to furniture placed too close to a poorly insulated exterior wall

Mold growing on the backside of the dresser

Mold growth on back side of dresser.

Mold growth on painted table legs due to elevated humidity.

Mold growing on table legs

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What would cause mold on my dresser in a carpeted room?

The first goal is determining whether the mold is due to excess humidity or a liquid water leak/intrusion.  In most cases, mold on the furniture is due to a combination of excess humidity and poorly insulated exterior walls.   When a dresser is right against an exterior wall, the airflow is restricted and condensation can form.  In time, this condensation creates an environment conducive to mold growth.

Try to keep your humidity beneath 55% during the winter months.  Often this can be achieved by simply running your bathroom exhaust fan 8-12 hours per day.  Also, if your home has poorly insulated walls, keep furniture and bedding 3-4″ away from all exterior walls.   Lastly, be careful with humidifiers, which can greatly exacerbate the issue.