A common environmental fungus often found on painted surfaces, wood, and caulking in damp areas.
Aureobasidium starts as a cream or pink color and darkens to brown or black as it matures. It has a smooth, yeast-like appearance initially, then becomes more textured over time. It is sometimes mistaken for other dark molds due to its black mature coloration.
This fungus is commonly found on painted or varnished surfaces, wood, caulking, and bathroom tiles. It thrives on window frames, siding, and other surfaces exposed to moisture. It is also frequently found in shower stalls and around bathtubs.
Aureobasidium is primarily an allergen. It can cause allergic reactions including skin rashes, hay fever symptoms, and respiratory irritation. People with compromised immune systems may be at higher risk for more serious infections, though such cases are rare.
Aureobasidium is often an early colonizer of wet surfaces after water damage. It is particularly common on painted walls and wood trim that have been exposed to prolonged moisture from leaks or flooding. Its presence on these surfaces is a strong indicator of ongoing moisture problems.
If you suspect mold growth in your home or business, contact us for a professional assessment.
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