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waterproofing membrane vs. mesh tape

paulsomlo | Posted in General Discussion on

I’m installing tile in a tub surround using Dens-Shield as the substrate.  I’ll also be using a waterproofing membrane (UltraCure 971, liquid plus fabric) on all horizontal seams and vertical joints.  Should I still use mesh tape and thinset on the horizontal seams?  This seems redundant.  Also, would the same treatment apply to transitions between drywall and Dens-Shield?

Replies

  1. DanC | | #1

    Paul,

    The purpose of the tape isn't waterproofing the substate,but rather to lock the sheets together.

    I would recommend using thin set to set your tile and simply bed your tape at the same time.

    Dan

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