Sorry if this has been done to death but googling the group doesn't help me
My refurbed bathroom will have an over-bath, gravity-fed but not pumped
Aqualisa shower. There is about 5 metres head of water. Cold feed is 22mm
direct from the roof tank and hot is similar from the top of the cylinder
about 20cm away directly behind the wall where the shower valve will go. So
this may not qualify as a "power shower" (whatever that is) but if it is
anything like the old Aqualisa I took out, there will be a strong flow at
least as good as the pumped shower on the floor above. I will be using
Aquapanel on the three walls around the bath. I'm looking for advice on
whether it would be a good idea also to use a tanking system such as that
from BAL (painted-on coating plus mesh tape for corners etc) or Impey
Tilesafe (self-adhesive membrane), or just put the tiles on directly with
appropriate water-resistant adhesive and grout.
I'm not that worried about extra cost (though it's quite high) or work. What
I don't want to compromise is that lovely smooth and even surface for tiling
which I'll get from the Aquapanel. I fear that the BAL system might do that
as it will have slightly raised areas and then a thick painted-on and
possibly uneven coating. The Tilesafe is a thick membrane which might well
make internal corners etc totally waterproof but make it difficult to tile
up to them properly afterwards.
IMHO a bit OTT. I have a home made shower cubical which is just tiled
direct to ordinary plasterboard. It's really only horizontal surfaces
where water might lie that need to be *absolutely* water tight. But in
your case that would only be the bath itself?
In my case the cubical is rather wider than the shower tray - to give more
elbow room and because of the available space so I made up a strong wood
frame to either side and cast in a concrete slope which runs under the
walls and is tiled with contrasting floor tiles - and have just a silicone
seal between them, and to the tray. It's been fine for many a year.
*I wonder how much deeper the ocean would be without sponges*
Dave Plowman firstname.lastname@example.org London SW
Dave Plowman (News) coughed up some electrons that declared:
I agree - for a non wetroom shower, tiles on anything are generally OK, as
long as the joints remain basically sound. I'd use silicon for all
edge-edge joints and make sure the grout is stuffed in well.
Plasterboard can be didgey if water get's past the tiles on a regular basis,
but if the OP uses Aquapanel (et al) or Marmox (et al) (both are
waterproof) I can't see any reason to worry. Silicon the Aquapanel for belt
I don't recall the OP saying what his walls were made of - if brick/block
then I'd worry even less.
There's a variation on that which is to box out the wall about 3' up and
have a tiled shelf on top (in my case it's 4" deep) - very useful for
sticking all the smelly stuff on :) and you still get the feeling of extra
space at chest and head height.
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