Tiling a consrvatory floor on top of existing tiles

[darrenhall1]

Hi can anyone help?
have to price up a job and part of it is to tile a conservatory floor on top of the existing tiles. The customer was told this was ok to do by another tiler so that is how she wants it doing. I have been told that what i need to do is prime the floor then just use the normal flexi cement rather than using the 2 part adhesive. Can anyone advise me if this is the case and if so what to use.
By the way just using ceramic tiles on the floor

cheers

darrenhall1.

 

[McP77]

If the existing tile is unglazed then you can go onto it with a normal flexi adhesive. If it's a glazed ceramic then you need to go with something like rapid set/gold star with an admix.

(Interestingly the BAL data sheet doesn't mention anything about priming surface first)

 

[DHTiling]

wash tiles with sugar soap and tile with fast flex.........