Adhesives and Moisture

[CC Solutions]

Thanks Ken,
This is far from my area of study, so I won't try to embarrass myself too much..

I have found mold on very wet slabs and in drywall on the edges of slabs. But typically the moisture sensitive floors are mold resistant, the adhesives have antimicrobial agents added, and the floor is well sealed from the surrounding air. Where we could run into trouble is in flooring cuts and gaps, if they get organic material in them, mold could be supported.

I am not scared of mold; after watching dozens of tests performed in hospital rooms with mold that looked like it could be mowed with a lawn mower, and seeing the spore activity in the clean fresh outdoor air far exceeded the interior spore count, I just don't think the terror is warranted.

That said I realize some folks are susceptible to mold induced illness, and no building owner wants to have a bad strain of mold growing that may harm someone! But for the most part, concrete will not support mold, the adhesive won't support mold, and the flooring won't support mold. After that I have to leave things to much smarter people like yourself to help figure a way to minimize the risk associated with mold and slabs.

I would be willing to bet that well over half the concrete out there has greater than 70% Rh though!