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Unread 06-04-2014, 07:16 PM   #7
Kman
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Join Date: Nov 2006
Location: NW Arkansas, Ozark Mountains
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If I had to tear up what you have, I'd use a utility knife and cut the mesh tape at each seam, back the screws out, and remove the CBU. Depending on how long it's been down, you may find that the thinset scrapes up fairly easily with a floor scraper.

As said before, what you have done isn't to manufacturer's specs, so nobody can truly endorse it. If you had T&G planks run perpendicular to the joists, you might have a better shot at it surviving as is, but I have serious doubts based on what you've told us.
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