lifting tiles

[boxhead]

hi everyone,i have come across a problem twice in 2 weeks where the ceramic tiles after a number of years just start banging and lifting and in the 2 cases the adhesive has been on the concrete floor but not on the tile.im baffled by this and i have to relay these floors with new tiles and the customer wants answers and reasurrance that the same wont hapen again. i would appeciate lads all the help you can give me.thanks boxhead:mad2:

 

[Alan.P]

This has been mentioned on the forums before, one possible answer was that the adhesive used had 'skinned over' before the tiles had been laid, thus not bonding to the tile. A few more details might help, adhesive type, fixing technique etc.

 

[smurf21]

Tiles dont just give up the ghost after two years for no reason, has there been any major movement ie extensions, wall removals,etc if not then as alan p says may be the way they were laid originaly and slight movement over the years has finally broken down what little adhesion they had, further investigation is needed as to the cause before gauranteing a new instalation i think.

 

[Perry]

a thin layer of vinyl adhesive maybe ete

 

[CJ CERAMICS]

maybe the floor was not prepped properley ie dust, no bonding agent or as alan said maybe the addy has skinned and the tiles failed to bond.

 

[boxhead]

thanks all for your views.these tiles were supposedly fitted by top tilers. the one floor had been down 7 years with no probs and all of a sudden they just started popping. if they were on a wooden floor maybe i could understand but these were on a good concrete floor and in both cases the tiles came up with little or no adhesive on them and the adhesive was stuck fast to the floor..im going to see the customer tonight and i was hoping for some answers to make it sound like i new what may have caused this problem. thanks all. boxhead

 

[grumpygrouter]

thanks all for your views.these tiles were supposedly fitted by top tilers. the one floor had been down 7 years with no probs and all of a sudden they just started popping. if they were on a wooden floor maybe i could understand but these were on a good concrete floor and in both cases the tiles came up with little or no adhesive on them and the adhesive was stuck fast to the floor..im going to see the customer tonight and i was hoping for some answers to make it sound like i new what may have caused this problem. thanks all. boxhead

Were they porcelain tiles fixed with non flexy addy?

 

[Perry]

not back buttered on a floor:yikes:

 

[Alan.P]

Were they porcelain tiles fixed with non flexy addy?

First post says ceramic grumpy.

not back buttered on a floor:yikes:

Why would they have to be ????

 

[DHTiling]

Also some floors have insulation under the screed ( kingspan) and as a result thermal movement in the substrate...so if standard rapid was used the it might no cope with the stress and delaminate...

No expansion joints around the perimeter of the substrate is another reason and also no perimeter joints to the tiling..

 

[Alan.P]

Expansion is another good call, been hot recently, although they've been down for years, we need some more info after the site visit tonight

 

[Perry]

First post says ceramic grumpy.




Why would they have to be ????

All floors should be a solid bed

 

[Alan.P]

All floors should be a solid bed

Agreed, but no need to backbutter with correct trowel and fixing

 

[grumpygrouter]

First post says ceramic grumpy.

Was just a thought, as ceramic and porcelain are man made, and in the same way, albeit that porc has finer materials and fired differently. Sometimes "normal" ceramic can be mistaken for porcelain if not checked carefully.

 

[Perry]

Agreed, but no need to backbutter with correct trowel and fixing

IT also keys better somthing imo should always be done