My house has the same black coating on the outside of the concrete foundation. I assumed (for better or worse) that the coating was a vapor barrier and I put up a typical stud and fiberglass insulation and drywall wall against the foundation with no additional vapor barrier.
The inspector saw the lack of a vapor barrier on the inside and gave it a passing grade.
I just hope that any moisture that got through the drywall and insulation and condensed against or inside the concrete in winter will evaporate in the summer.
(One morning on WRKO Radio) The tub's not clean! Let's remodel the bathroom.
(One afternoon on WRKO Radio) It's time for an oil change. I'm going to trade in the car for next year's model.
But AllanJ, the inspector could have seen the black coating outside, noted that it was a waterproofing membrane, and then saw your drywall on the inside and noted that that was a vapour retarder, so he passed it, no?
What do you assume now about your black stuff?
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