MOLD GLOSSARY
MOLD IDENTIFICATION
A Helpful Guide to
Identifying Indoor Mold Types
CLADOSPORIUM
A fast-spreading mold that grows on wood, carpets, fabrics, and drywall. Known for causing allergy reactions.
ASPERGILLUS
Common indoor mold found in damp materials and HVAC systems. Often linked to allergies and poor air quality.
PENICILLIUM
Spreads quickly after water damage and grows on furniture, fabrics, and food. Often produces an odor.
STACHYBOTRYS
Forms after long-term moisture or leaks and appears as dark, patchy clusters. Known for strong odors and moisture.
ALTERNARIA
Common in bathrooms, kitchens, and laundry areas. Often linked to moisture, allergies, and humid areas.
- thrives in wet areas
- spreads along walls and grout
- often triggers allergies
- grows in humid rooms
CHAETOMIUM
Appears after water damage and has a musty smell with a cotton-like texture. Frequently found inside walls.
MUCOR
Grows near HVAC units, vents, and condensation areas. Quickly spreads in humid climates with moisture.
ULOCLADIUM
Seen after leaks or flooding and grows in high-moisture areas. Often found on drywall or wood.
FUSARIUM
A moisture-loving mold that grows on carpets, wallpaper, and fabric after leaks. Spreads quickly in damp areas.
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How Can I Tell If Mold Is Dangerous?
You can’t determine toxicity just by appearance. Some molds that look harmless can still trigger allergies or respiratory issues. A professional inspection is the only way to accurately assess risk.
What Causes Mold to Grow Inside a Property?
Mold thrives in damp, humid, or poorly ventilated areas. Leaks, condensation, crawlspace moisture, clogged HVAC systems, and storm damage are the most common sources of indoor mold growth.
Should I Try to Clean Mold Myself?
Small surface spots may be wiped away, but deeper or recurring mold should never be handled without proper containment. Improper cleaning can spread spores and make the problem worse.
How Quickly Can Mold Spread?
Under the right conditions, mold can spread within 24–48 hours. Moisture + organic material + poor airflow provides the perfect environment for rapid colony growth.
What Are the Health Symptoms of Mold Exposure?
Common symptoms include coughing, sneezing, headaches, skin irritation, and sinus pressure. People with asthma, allergies, or weakened immune systems may experience more severe reactions.
