Did a mold inspection Sunday 3/11
2 air-o-cell samples outside/ RH 23 / temp 67
1 air-o-cell sample in kids room/ RH 40/ temp 73
2 swab samples in the basement, on the block wall and on a wood floor joist/ RH 50/ temp 64
Results from the lab 3/16:
inside and outside air samples almost the same with no issues
swab sample on the basement wall was rare to low
swab sample in the basement floor joist high/ Aspergillus/Penicillium
The problem I’m having is not being able to determaine the cause of the high level in the basement floor joist and subfloor.
No rain 5 days prior to sampling.
No past or present water intrusion visible in the basement.
Exterior gutter/downspouts appeared functional.
Roof in bad condition, but no water intrutions visible in the attic.
Chimney in bad condition with no flashing, water intrutions noted in the attic. — the chimney goes straight down to the basement…(possible cause)
Let me know if there is any additional information needed to help me diagnose the cause.