Mold is a type of fungus which also includes yeasts and mushrooms. Molds are microscopic organisms that are a natural and vital part of our outdoor environment. Their primary role in nature is to break down dead organic matter, such as fallen leaves, dead trees, and other decaying debris.
While mold spores are everywhere, they only become a problem when they land on a surface that provides the necessary conditions for growth.
Mold needs four key elements to grow:
1. Moisture: Mold cannot grow without water or high humidity. This is why water damage is the primary precursor to indoor mold growth. Any source of unchecked moisture, whether from a leak, flood, condensation, or high indoor humidity, provides the essential ingredients for mold to thrive. Mold can begin to grow within 3-7 days.
2. Food Source: Molds feed on organic matter. Unfortunately, many common building materials and household items serve as excellent food sources for mold that include:
*Wood (framing, subflooring)
*Paper (drywall paper facing, wallpaper, books, cardboard)
*Fabric (carpet, upholstery, clothing)
*Dust, dirt, and food particles
3. Oxygen: Mold needs oxygen to survive, which is readily available in the air.
4. Temperature: Most molds prefer temperatures between 60F - 80F, which falls within the typical range for indoor environments.
When spores land on a damp surface that has food and oxygen available, and the temperature is suitable, they will begin to germinate and form new mold colonies.