lifting tiles

[Time's Ran Out]

I'am with Pjc here - If you flat skim the backs of the floor tiles it gives a better hold for the adhesive, almost guarantees solid bed fixing, and as may be the case here - if the adhesive trowelled onto the floor has skinned a bit then it freshens it up!.
As far as reassuring you customer we are getting back to guarantees again! Without analysing the adhesive used it would be differcult to tell why it failed after 'a number of years'
Your description is of the tiles 'banging' is this a hollow noise when tapped?
Hope you get your answers for tonight!

John.

 

[Ajax123]

I know it is stating the obvious but if the addy is stuck to the concrete floor but not to the tile that is a failure at the interface between the tile and the addy. If the delamination was being caused by movement in the substrate I would expect the addy to part company with the concrete and not the tile or at least some on each. Also the length of time before the problem occurred is a bit suspect. Tiles don't stay stuck for years and then just fall off do they?. I like the addy skinned over prior to tiling but surely then the tiles would have delaminated quite quickly. Is there a shift in the moisture levels in the system which could have blown the tiles? I did see lots and lots of tile problems couple of years ago when we got the major floods in Sheffield and the Midlands. Many of these were not a result of direct flooding but because of an upward shift in the local water table causing substrates to become "suddenly" wet - it was particularly noticeable over block and beam floors.

 

[boxhead]

hi this is boxhead, thanks to all for your views on this. i have just come from the customers house and she had all the tiles removed by a relative.after inspection i noticed that a lot of the remaining addy was fairly easy to remove with a scraper.about half of the floor the addy is fairly secure to the floor. i think after talking to the customer that it was a new extension so i put it down to 2 things .1.the floor was not sealed properly , maybe dusty prior to the addy and 2. there was some movement as suggested(thanks)in the substrate causing the tiles to pop especially with the not well sealed floor.well thats my theory and im going to scrape the floor clean and seal it well and use a quality addy and im surre all will be fine. thanks to all for the input.

 

[doug boardley]

I thought it may have been dust on the tile biscuit

 

[Ajax123]

I thought it may have been dust on the tile biscuit

Can you dunk these tile biscuits in your coffee and do they come in chocolate

 

[doug boardley]

Can you dunk these tile biscuits in your coffee and do they come in chocolate

lol, only advisable if you're a James Bond villain...:8:

 

[Perry]

Doug i have seen that b4