09/09/2021
The one-word answer is water. There are actually five factors that are needed to support fungal growth, but water is the factor most easily controlled indoors and is the one factor every species of mold requires. The other factors are temperature, light, nutrients (food source), and PH (mold prefers a slightly acidic environment). Mold thrives under humid conditions and in dark areas. Water leaks from leaking water pipelines, roof leaks, AC leaks, and other sources of water discharge often contribute to the growth and spread of mold, which may be considered as mold infestation.
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