Mold

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Mold is a natural part of the outdoor environment. Mold is present in outdoor air at some level throughout the year. In order for mold to grow indoors, there must be a significant source of water, moisture or humidity.

Mold can be found everywhere, both indoors and outdoors. Mold will grow in areas where moisture is present. Mold growth, which often looks like spots, can be many different colors, and can smell musty.

Health Effects

Exposure to mold can cause a variety of health effects, or none at all. Some people may develop symptoms that are similar to an allergic reaction. If you have an existing health condition such as asthma, emphysema or COPD, it can make those conditions worse.

Testing

Standards for judging what is and what is not an acceptable quantity of mold have not been set and a mold test or inspection can be quite expensive. If you see mold growth or smell something musty, there is likely mold growing and you will need to fix the problem that is causing the mold growth.

Prevention

Removing the moisture source is the key for getting rid of mold. If you clean up and the moisture is still there, the mold will come back. To prevent mold growth:

After a water leak or flood
- Fix any leaks in your home's roof, walls, or plumbing.
- Clean up and dry out your home thoroughly and quickly (within 24-48 hours) after a flood or water leak.
- Ventilate the area with a fan or by opening a window.
In a naturally humid space
- Use a humidistat to monitor the humidity level in your home. Keep the humidity level in your home between 40% and 60%.
- Use an air conditioner or a dehumidifier during humid months and in damp spaces, like basements.
- Use a ventilation fan for bathrooms and kitchens. Make sure the clothes dryer is vented outside the house.

Cleanup

If mold is growing in your home, fix the moisture problem and clean up the mold. Mold can be cleaned from hard or nonporous surfaces using detergent and water. Throw away porous materials that have become submerged or saturated.