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Posted by RicodJour on October 5, 2007, 9:47 am
> Need suggestions on flooring for 2nd floor laundry room. It is part
> of a big remodel, but we are finishing floors ourselves. In remodel
> plumber put a drain in center of the floor (big laundry room, 12x18)
> He also laid that thick shower floor membrane over entire floor. Now
> we want to finish with ceramic tile. How do you put ceramic tile
> over shower pan membrane? As it stands the membrane is just laying
> on the plywood floor.
> Options:
>
> Pull up membrane, put down cement board, put membrane over cementboard
> then put tile over membrane. Obvious problem is, does the thinset
> bond to the membrane??
>
> Could just put cement board over membrane, essentially rendering
> membrane useless with all the screws through it.
>
> Any other suggestions.. it is too big of room to put down "cement" or
> cementlike covering over membrane, then tile on that like you would do
> in a showerpan.
>
> will not be attempting to slope floor to drain, too tough on such a
> big floor, and water on floor would be very infrequent, it is just a
> safety drain, so not worth sloping.
If the room is too big to slope the floor (?) membrane should not have
been laid down on the entire floor. The immediate area around the
plumbing and machines should have been waterproofed. A better way of
doing it would have been to have the washer sit in a precast receptor
- or in a recessed waterproofed area of the floor - that was plumbed
to the drain. Then the situation is no different than a bathroom or
any other sink.
R
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