500 sq. ft. basement finished out about a year and a half ago. Reverse grade under the deck where the dog dug out a cool spot and sprinklers near another ext. wall. No sign of moisture intrusion at ceiling, wall (poured concrete) or floor (slab). A strong musty smell like long-term moisture damage w/mold present.]
On this level, a bathroom with a shower has no ventilation. About three minutes of the shower running caused the humidity to rise from 24% to 31%. Long showers a possible source?
With a smell this strong I would expect to find visible moisture damage in materials that have been in place for a year and a half if the source were groundwater/ runoff.
I thought that the smell mold gave off was a gas excreted as mold fungus consume cellulose or lignen or whatever they’re eating. If they’re active and eating, where’s the evidence of moisture? If there is none and they’re inactive, where’s the smell coming from?
Recommending invasive investigation by mold mitigation co.