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salbwil

Hydroban and grab bars

salbwil
11 years ago

Hello,

I am coating my cement board with Hydroban before tiling and want to install a grab bar on the wall above the tub after tiling. Iunderstand having to place a suitable backing board behind the cement board , but how do I ensure the screw holes for the bar don't allow water in behind the Hydroban ?

Thank you,

Salbwil

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