Porcelain tiles lifting from concrete floor

[iris2013]

We are removing the tiles installed on my kitchen floor as they are lifting on their own. As we remove the tiles I've noticed that the adhesive used is glued to the concrete floor but none of it has adhered to the tile itself. I don't know anything about installing tiles but to me it seems strange that the porcelain tiles are coming out clean. Is that normal?

 

[White Room]

No it is not normal, did you have any under floor heating.

 

[iris2013]

I don't think there is any under floor heating. I am on the 3rd floor and the area underneath me has the same floor plan and it is a walking area.

 

[The Legend; Phil Hobson RIP]

As above and what type of adhesive was used?

 

[iris2013]

I have no idea what adhesive was used. I bought this place new not quite 6 years ago. Have no idea what they used

 

[Rookery]

Sounds to me like they used a C1 adhesive or didnt back-skim, or both.

 

[iris2013]

Thanks for your advice.

 

[Rizzle from the Portizzle]

peru ? they may well have been laid in wet sand and cemment are they tiled wall to wall you may well have movement here forcing the porcs to lift under presure and they can come up clean even if back buttered as the adhesive holds porcs more than sticks if the tiles to the outside edge are still holding and the ones to the centre are loose you are dealing with movment

 

[steve187]

If the method used in Peru is anything like Thailand ,the tiles are laid solely on the wet sand and cement bed, no adhesive or back buttering, always a problem wait to happen.

 

[DHTiling]

We are removing the tiles installed on my kitchen floor as they are lifting on their own. As we remove the tiles I've noticed that the adhesive used is glued to the concrete floor but none of it has adhered to the tile itself. I don't know anything about installing tiles but to me it seems strange that the porcelain tiles are coming out clean. Is that normal?

More info needed ... adhesive type ... method of application , and pics of said floor..