Tiling on tiles / help

[keith1]

Hi all,
Need a little advice please. I'm going to be doing a kitchen floor soon laying ceramic 600 x 600 tiles on top of 450 x 450 ceramic tiles. Do i need to prime the floor once i have washed down with sugar soap. Also i was going to use a rapid set cement based adhesive, will this be ok or is there a special adhesive for tiling on tiles. Many thanks.

 

[jay]

hi need a bit more info are existing tiles well laid whats the substrate and why not lift existing tiles and start fresh :8:

 

[The Legend; Phil Hobson RIP]

I'm with Jay on this. Why not rip up?

 

[tiler4u]

If you tile over existing tiles always is risk. The best solution is takin of old cover. REMEMBER this is floor. Litelby difrent is on the wall be couse nobady walking on that 😉 Anyway you have to check old covarege, if is enough solid mayby will be right. I allways use BALL primer. You can try do some selflevelin to making nice surfece. I think this NO GOOD idea doing tiling tile on tile on floor. This is only my opinion.

All best and good luck 😉

 

[united]

I would also rip them up. I wouldn't want to tile on anything unless I knew what was behind.

 

[Stu Lilley]

def rip up old tiles if you can.....if you cant rapid set S2 flexability will make sure the new one are well stuck

 

[keith1]

Hi, customer is adiment that he wants old floor to stay down, it was layed 2 years ago on a new screeded floor. The tiles are sound and level. They had a new kitchen fitted at the same time it's just that his missus is bored of the tiles. Would you prime the floor first and use rapid set adhesive? cheers

 

[Alan.P]

If the customer is adamant then I would clean, prime or key and fix, another thing to discuss with the customer is the problem with white goods, fridge, dishwasher etc, I'm assuming that these will be tiled up to and not under, if that's the case they may have problems removing them for maintenance, and tiles may need to be lifted.

 

[keith1]

Yea i told them this and his says that his going to take out the white goods. Also told him about needing to remove and probably trim down the kitchen door, none of this would change his mind on rip floor up. cheers for help.

 

[Alan.P]

Fair enough, as long as he has space to get the white goods back in after the new tiles go down.