Tiling Onto Plasterboard In Shower

As for the wall with lining paper on it.

Tiling onto plasterboard in shower.

There are several acceptable applications of cement board in the shower. This means that by tiling over the wedi board you are simply providing an aesthetic look to the shower but not relying on the tile itself to do the waterproofing of the shower. Then the cement board is installed on top of the plastic sheeting. Any moisture that escapes behind the tiling in time will break down the plasterboard and potentially cause the tiles to work loose.

You can rough up. The tile does add a layer of waterproofing protection but the real heart of the system is in the wedi board behind the tile. The board can be procured from diy stores e g. Knauf aqua panel is one product that can be used.

Another suitable board would be the knauf aquapanel plasterboard usually around 26 for a 2400 x 900 size board. Preparation for tiling onto plasterboard plasterboard should be dry securely fixed and rigid with no protruding fixings with the face to receive decorative finishes exposed. It is a cement based board so resistant to wet moisture. Cement board and plastic sheeting in this highly convenient inexpensive and popular application a moisture barrier of 4 or 6 mil thick plastic is installed directly over the wall studs.

I m also fairly sure that pva should go nowhere near tiled walls in wet areas. It should be a minimum 12 5mm thick when fixed to timber framing or battening and fixed in accordance with the manufacturers recommendations. The answer is very much dependent on wether you are are applying board and tiling in a wet area e g shower enclosure or around a bath with a shower over.