The problem with tiling direct to PB is(and it will over time)vapoured steam
will penetrate the PB no matter how much you seal the tiling with grout.
But if you want to do it this way YES you can.
My advice is to seal th PB with PVA.
Provided it's done right and no cracks appear due to movement, there
should be no problem. The tiles in my shower cubicle are on painted
(emulsion) plasterboard, the shower has been in for 7 years. Last year
I took the lathe and plaster off the other side of the wall and there
was no sign of any water penetration.
So what. As long as it dries out faster than it gets in who cares?
Do you have a problem in your plasterboard ceilings over a steamy bath?
In a kitchen? Do ceilings fall down juts becasue a kettle gets boiled
What twaddle you do talk.
If the water can get in, it can get out.
Plasterboard doesn't mind humidity. It can actually even stand being
sopping wet. For a short while. Once its tile the tiles add a hige
amount of waterproofing and a huge amount of sctial strength as wel. YOu
migh say that all the plasterboard does is stop the *tile* wall from
buckling and you would not be far wrong
I have even had plasterboard get utterly soaked from a leak inside a
stud wall. Nothing happened. It stayed up.
Yes, no problem! When you want to remove the tiles, simply remove the
plasterboard and replace with new. Plasterboard is cheap!
Even if you skim it first, you're still not going to be left with a useable
surface when you subsequently remove the tiles.
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