Tiling over other Floor Tiles

[clipboard2008]

Hi

I have a conservatory floor that needs tiling, there are tiles down already.

The customer would like me to tile straight over the old tiles which isn't a problem but will the adhesive stick to the old tiles?

Thanks all in advance

Paul

[wolf33]

depends on how well the old ones are fixed!!! use de greaser on old tiles and a rapid flexible adhesive such as bal supercover rapid set flexible CTD have offer on adhesive at the mo but tile giant (sponsors) will have an equivalent

[david campbell]

not what everyone would like to do but as above a good flexible adhesive like mapei keraquick and a ultracolour grout will be fine as long as the previous tiles are well adhered

[hillhead]

At least gravity will help,lol.
I'v used keraquick to do it before,no problems.

[Daz]

Paul,

My advise is to thoroughly clean / degrease the existing floor and check how well the existing tiles are fixed, removing any loose, chipped etc, tiles.

I always score the glazed surface with a grinder then apply Ardex P81 2 part epoxy primer. I would then use something like Ardex X7R or S16 (both rapid set flexible) depending on what I'm fixing.

Incidentally, I will only fix porcelain on a previously tiled floor. Anything else and I recommend the old tiles coming up.

Good luck mate.

Daz

[Dave]

If the tiles are gloss glazed then you will need an S2 adhesive..