kevin 777

I am looking to tile on top of sound existing wall tiles in the bathroom is this ok to do or this there a special preperation of the tiles needed or special adhesive needed.

GazTech

Hello Kevin,
What size tiles are you fixing on the existing tiles, and what are they ? ceramic, porcelain or stone ?......Gaz

"The bitterness of poor quality remains long after the sweetness of low price is forgotten"

Fekin

Depending on what new tiles your using will depend on wether it can be done or not.

Mike Strutter

Isn't it so that providing the wall/floor is sound and you use a good addy, it should be fine?

grumpygrouter

Not, for instance if he has plaster walls and he wished to put granite or marble or such like over the top. Safe weight limit of substrate would be exceeded.

Grumpy


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Mike Strutter

Ahh yes of course, sorry i was just thinking of lighter tiles, not much call for the large heavy tiles on walls for me yet

grumpygrouter

Assuming the substrate is stong enough to accommodate the over tiling, the existing tiles need to be cleaned with sugar soap to ensure grease free and then use something like Rapidset with Admix AD1 and also a flexy grout.

Grumpy


Balancing Act Accounting
Turnover is Vanity, Profit is Sanity, Cash is reality!

kevin 777

I will be using 8 x 10 ontop of 6 x 6 on plastered walls.existing tiles are solid.

Unregistered

in my experience, it is fine to go ahead and aply new tiles onto existing tiles. just make sure you give them a clean first and use some adhesive that is suitable, most ready mixed tubs of wall tile adhesive can be used, but, I tend to use one that is a level up from bog standard (some are self priming), Just make sure thouroughly read the small print on the side of the tub/packet they usally state the limmitations of the product. and give it plenty of time to dry out before grouting, at least 3 days and a lot more for big tiles.

i have assumed you are using ceramic.

bigneil

Rav daniels

and make sure your new grout lines are staggered and not over the existing ones

IGTiling

Existing tiles should be thoroughly cleaned using Sugar soap, remembering to rinse off completely afterwards. Weight limits for walls are: 20kg/m² for plaster and 32kg/m² for plasterboard, stay within these limits and you should be fine. Bal Grip is fine for tile over tile but please remember that the adhesive is going to take a bit longer to set because of tiling onto a non-porous surface. Grout lines should be staggered, horizontally and vertically so that new grout lines do not mimic the old grout lines.

Unregistered

Hi Guys,

Just about to upgrade my shower area,and will be tiling over existing tiles on a plasterboard background, new tiles are 250 x 380. I am a bit confused as to the choice of adhesive.Some have recommend Bal rapidset, while others prefer Bal grip.Bal's fixing guide makes no mention of a cementitious based tile fix over existing tiles.I would be gratelful for any comments.
Regards,

Charlie.