Tiling over small wall tiles.

[Donald_diy]

We are now considering an alternative remedy for our kitchen wall tiles,our existing tiles are very well attached to the unplastered plasterboard paper surface.
To remove the tiles will just destroy the plasterboard so we are considering a tile over option. We have seen tile backer board is this suitable for glueing directly to the existing tiles,then fit tiles to the board ?.
What sort of preparation is required for the existing tiled walls ?.
Any do's and dont'd to consider ?

Many thanks,again.

 

[footprints]

Just tile on tile. As long as you clean and degrease the existing ones tile directly over the old ones, no need for backer board.

 

[chappers]

yep I would thoroughly clean them then used a decent powdered adhesive most are suitable for tile over tile

 

[vinn]

However you go with pulling out the finished surface, consider:
Knuckle bumping behind any taps on the bath head rim.
Window or soap niche openings.
Elec shower units.
Any projecting fittings such as valves, spouts or shower heads.
Enclosures.

 

[Donald_diy]

yep I would thoroughly clean them then used a decent powdered adhesive most are suitable for tile over tile

Thanks for the help,
As a diy I prefer ready mixed adhesives,which ready mixed adhesive for tile over is recommended ?
Prefer to buy from a tile shop not a shed or eBay,anyone know independent tile shops in south Kent ?
Thanks again,great stuff.

 

[chappers]

Bal say that their ready mixed adhesives are suitable for tile over tile, but personally I'm not sure I would be that confident and they shouldn't be used to fix non porous tiles
Dispersion adhesives work by literally drying out whereas cement based adhesives set by chemical reaction, so if you do use a dispersion adhesive over a non porous substrate then you will need to leave it a lot longer before grouting