Tiling Onto Plasterboard In Shower

Then the cement board is installed on top of the plastic sheeting.

Tiling onto plasterboard in shower.

It should be a minimum 12 5mm thick when fixed to timber framing or battening and fixed in accordance with the manufacturers recommendations. As for the wall with lining paper on it. There are several acceptable applications of cement board in the shower. 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. Another suitable board would be the knauf aquapanel plasterboard usually around 26 for a 2400 x 900 size board. 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. Any moisture that escapes behind the tiling in time will break down the plasterboard and potentially cause the tiles to work loose.

The tile does add a layer of waterproofing protection but the real heart of the system is in the wedi board behind the tile. 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. The board can be procured from diy stores e g. 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.

Knauf aqua panel is one product that can be used. Afaik there s a weight limit for tiles directly onto plasterboard 32kg m2 i think which is better than skimmed plasterboard but imo if its anywhere near a wet zone you should use a more suitable cement board like hardibacker board. If you want to update your kitchen or bathroom walls with tiles you don t have to remove existing painted drywall to do so.