In my bathroom there is vinyl on top of plywood, which is nailed to the sub floor. Should I pry up the plywood before putting down cement backer board for tile, or can I go over the plywood?
Tile – Should I remove nailed-down plywood before laying tile
bathroomfloorsubfloortile
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Best Answer
The plywood is there to make the vinyl the same height as the rest of the flooring in the house. If you add backerboard + tile on top of it, you are going to add somewhere in the range of 5/8" to 3/4" of height. That is enough to be a tripping hazard, and it also wouldn't look very nice.
Pulling up the plywood and the putting down the backer board is the right thing to do.