I have a small foyer with exposed concrete board.
the previous owner had left it exposed, and apparently had
a litter box there, so the concrete board now smells of cat urine.
My question is how to remove the concrete board.
(It's been mortared into place.)
Over a slab? Shouldn't have even been used for that application. Use a
flat bar. Over a wood subfloor? With nails or screws too? Screws
you may be able ot back out. Nails you can pull. Again a flat bar.
Won't be an easy chore either way.
I wouldn't trust it thinsetted down to the slab. It's not designed for
that application. It may fail, and sadly -after- you have the finish
flooring installed over it.
There may some affect to the slab but I doubt it's much. Clean it
with bleach or other products made for the issue.
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