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I'm a little confused on where exactly backer board needs to reside in a bathroom. I know it needs to immediately cover the walls that the shower/bathtub face, but what about the rest of the walls in the bathroom? Is backer board needed everywhere in a bathroom?

Mike B
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1 Answers1

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Backer board, HardieBacker, or cement board is used on any surface that is to be tiled.

Tester101
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