It’s very common to find molds in homes and buildings. After all, molds grow naturally indoors. And mold spores enter the home through doorways, windows, and heating and air conditioning systems. Spores also enter the home on animals, clothing, shoes, bags and people.
When mold spores drop where there is excessive moisture in your home, they will grow. Common problem sites include humidifiers, leaky roofs and pipes, overflowing sinks, bath tubs and plant pots, steam from cooking, wet clothes drying indoors, dryers exhausting indoors, or where there has been flooding.
Many of the building materials for homes provide suitable nutrients for mold, helping it to grow. Such materials include paper and paper products, cardboard, ceiling tiles, wood, and wood products, dust, paints, wallpaper, insulation materials, drywall, carpet, fabric, and upholstery.
According to the Centers for Disease Control*, “It is not necessary, however, to determine what type of mold you may have. All molds should be treated the same with respect to potential health risks and removal.”
- “A Brief Guide to Mold, Moisture, and Your Home,” Environmental Protection Agency
- “Repairing Your Flooded Home,” FEMA
- “Controlling Mold Growth in the Home,” Kansas State University
*Sources: California Department of Health Services Indoor Air Quality Info Sheet, “Mold in My Home: What Do I Do?” revised July 2006; Centers for Disease Control and Prevention, “Questions and Answers on Stachybotrys chartarum and other molds”