A most unfortunate flooring failure!

[Ernesto]

Yes, I just did a similar moisture testing gig for a firm who put an epoxy coating on a drive outside a hotel driveway. But, no effloressence just some blistering. I felt it was improper prep instead of a moisture issue even though I got high readings.

The old epoxy had not been taken off and it was pulling as well. Multiple layering of the epoxy by the maintenance staff before this contractor got there.