Can You Kill Mold By Drying It Out?

mold issues

No moisture, no mold. It sounds like a simple solution to mold issues in a home. Since mold is a fungus that requires moisture to grow, just drying out mold growth ought to eradicate it in short order. Right?

Like many easy answers to complex problems, it ain’t necessarily so. While moisture is the key factor that triggers the active growth mode that causes mold issues, ironically, the absence of moisture alone doesn’t make mold go away. Here are two reasons why:

  • Mold can exist in more than one living state. Active or viable mold triggered by moisture grows and releases microscopic airborne reproductive spores that spread that growth to other locations in the house. These spores contain mycotoxins that cause allergic reactions or other symptoms when inhaled by certain individuals.
  • In the inactive state, an absence of moisture causes mold to be dormant and cease growth—yet not be technically dead. Inert spores from dormant, dried-up mold can be just as allergenic as active spores from living growth if inhaled. Moreover, moisture from any source such as water damage or leakage—or even simply sustained high humidity—quickly reactivates dry, dormant mold growth and triggers the release of reproductive spores once again. Mold issues then recur throughout the house.

Successful mold remediation isn’t a one-step solution. It requires multi-faceted treatment to ensure comprehensive decontamination.  

  • All mold growth must be tracked down and physically removed from wherever it exists in the house. No existing mold—active or inactive—can be left behind, as any remaining growth may likely reactivate at some later point under certain conditions.
  • After removal, areas of contamination must be directly treated with EPA-approved fungicides to sterilize surfaces and prevent regrowth.  
  • The source of water which triggered active mold growth must be identified and permanently eliminated.
  • If mold growth occurs as a result of a water damage incident, prompt professional water damage remediation includes standardized mold prevention methods like air sampling to detect the presence of spores and proven techniques to locate and remove mold growth and sterilize affected surfaces. 

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