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ranger481vs

Building my substrate for ceramic tile bathroom

6 years ago

My sub flooring consisted of two layers of half-inch plywood with linoleum glued to the top layer. I removed the top layer of plywood along with the linoleum. There is some flex in the seams of the bottom layer. Do I need to be concerned about this even if I'm planning to add a new layer of half-inch plywood over it, plus thinset and 1/4" Durock as an underlayment?

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