Mold vs. Mildew in Georgia: What's the Difference and Which Is Dangerous?
If you live in Snellville, Lawrenceville, or Norcross, you are no stranger to humidity. And where there is humidity, there is fungal growth. Homeowners often use the terms "mold" and "mildew" interchangeably, but while they are closely related, they present very different risks to your home and health.
Visual and Biological Differences
Both mold and mildew are types of fungi that thrive in moist environments, but they grow differently. Mildew typically grows flat on surfaces. It usually starts as small, powdery dots that are white, gray, or yellow, eventually turning brown or black. Mold, on the other hand, is much more aggressive. It grows in fuzzy or slimy patches and can be black, green, blue, or red. Unlike mildew, which stays on the surface, mold roots itself deep into porous materials like drywall and wood.
Health Risk Comparison
Mildew can cause minor respiratory irritation, especially for asthma sufferers, but its health impacts are generally mild. Mold is a different story. Certain types of mold produce mycotoxins that can cause severe allergic reactions, chronic respiratory issues, headaches, and fatigue. Prolonged exposure to toxic mold requires immediate professional intervention.
How Georgia Humidity Acts as an Accelerant
Georgia's long, humid summers act as an accelerant for both mold and mildew. When indoor humidity rises above 60%, any damp surface becomes a breeding ground. What starts as a small patch of mildew in a poorly ventilated bathroom can quickly escalate. If that moisture penetrates the drywall, mildew is no longer your problem—you have a mold infestation.
When Mildew Becomes Mold
Mildew usually grows on non-porous surfaces like shower tiles or windowsills and can be wiped away with standard household cleaners. However, if you see fungal growth on drywall, baseboards, or floor joists in your crawlspace, it is almost certainly mold. Mildew does not destroy the structure it grows on; mold does.
When to Call a Professional
If you can wipe it off your shower tile, you probably don't need us. But if you see fuzzy growth on your walls, smell a persistent musty odor, or discover fungal growth in your crawlspace or attic, do not attempt to clean it with bleach. Bleach only removes the surface color of mold while the roots continue to grow. Call Micro Clean Restoration for a professional assessment.