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    David Whitworth's Avatar
    David Whitworth Posts: 2, Reputation: 1
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    #1

    Feb 15, 2010, 04:32 PM
    Redgard water proofing
    We have just install a new bathroom in the basement. Do I apply Redgard directly on the new purple drywall (unpainted) in the shower or do I apply a drywall primer first?
    David Whitworth's Avatar
    David Whitworth Posts: 2, Reputation: 1
    New Member
    		  
    #2

    Feb 15, 2010, 04:35 PM

    I just install a new bathroom in the basement. Do I apply Redgard directly on the purple drywall (unpainted) in the shower or do I apply a drywall primer first?
    JazMan's Avatar
    JazMan Posts: 219, Reputation: 14
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    #3

    Feb 15, 2010, 07:43 PM
    David,

    Several things:

    1. Moisture resistant wall board should not be used in wet areas, unless you install a waterproofing membrane that will work over it.

    2. Redguard is not intended for application over wallboard whether it's a dry or wet area.



    Since the MR board is up, you can continue by installing Kerdi Membrane. Kerdi will work great over wall board, you install it using a good quality unmodified thin set. Kerdi is part of a superior system that also includes the Kerdi Drain when the floor is tiled too. Is your shower floor getting tiles, or is it a pre-fab fiberglass unit?

    Please explain your project from the ground up, you may have made another error.

    Jaz
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