Redguard Application Question

[NEW TILER]

Ok Here Aremy First Questions Ever For This Site......is Redguard Sealer Put On After The Backerboard Is Put Up For A Stand-up Shower? Do You Paint It On Just Where The Backer Boards Meet? Or Do You Paint It On All The Backerboards. Im Hearing Different Things.....please Help!! Thanks...

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[Davestone]

You can use it instead of a vapor barrier behind the cbu,when you do you paint it on everywhere.

[NEW TILER]

Thanks Dave......i'm Really New To The Tile Lingo... Ha Ha. What Is A Cbu?

[Steven Hauser]

CBU= Cementious Backer Unit