Tile wallboard

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Pappy

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Replacing tile wallboard in shower/tub wall . They have drywall only behind the tile board . Do I need to somehow put a water proof barrier over the drywall or will new tile board be ok?
Thanks 😊
 

havasu

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Some lazy folks will use greenboard drywall, but honestly, you are just asking for future problems. Install a concrete backerboard, tape and cover the seams, and it will last forever.
 

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