What this video covers
The clip points out that crawl spaces are both the most common mold location and the least inspected.
Most homeowners never go in, so problems there run for years without interruption. The space sits directly beneath the living floor, which means anything growing has a direct path into the rooms above.
The takeaway
One inspection a year with a torch is the whole preventative routine. It is the highest return per minute of any mold check in a house.
Read the full written guide: Crawl Space Mold Removal.