What homeowners notice
- musty smell indoors
- damp insulation
- condensation on ducts or pipes
Symptom
Musty crawl space odor
Musty odor can indicate damp soil, poor ventilation, standing water, or wood moisture problems under the home.
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Quick answer
Musty crawl space odor
Musty odor can indicate damp soil, poor ventilation, standing water, or wood moisture problems under the home.
- musty smell indoors
- damp insulation
- condensation on ducts or pipes
Possible causes
- poor drainage
- missing or damaged vapor barrier
- high humidity
When to take it seriously
Note whether the symptom is new, widening, back after repair, paired with water, or showing up in more than one part of the home.
One cosmetic issue may not need structural repair. Several symptoms together should be checked.
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