Glass Tiles Cracking - 200 x 100 x 3mm

[msg2004]

Hello

Been searching on the net and here. I think I have the answer but need to confirm

Had our kitchen fitted and finished about 2:5 months ago. The black tiles were a bit thin, but only ones I could get is 3mm.

The were fitted with square edged stainless steel trim. The tiler had to put thick layer of adhesive and finished in black grout.

We noted a couple of broke tiles and these were changed within the first week. Since then another 6 have cracked.

Question: Did the tiler use too thick amount of adhesive? Btw, the walls were skimmed a few dayys before the tiling.

The few they have re-done not broke yet.

i'm worried as more will break as read that many people find tiles crack for up to 7/8 months.

Please help to resolve ie what needs to be done.

Many thanks in advance

 

[Andy Allen]

do you know what adhesive was used, when you say thick layer of adhesive, how thick we talking about..

 

[Spud]

what size joint did the tile use, glass has a high coefficient of expansion so needs the correct sized joints and expansion gaps at the corners, are the cracked tiles above the hob?

 

[Diamond Pool Finishers]

glass has a high coefficient of expansion , spot on Gary mate !, i same happens with glass mosaic used in swimming pools outside that are exposed to the hot/cold weather /water of pool ...... you should use extra expansion joints with these materials IMHO .........

 

[DHTiling]

Are the tiles that are cracking in behind the hob/cooker area..?

 

[msg2004]

Are the tiles that are cracking in behind the hob/cooker area..?

Hello

The tiles are all over the kitchen and none above the hob as yet.

 

[msg2004]

do you know what adhesive was used, when you say thick layer of adhesive, how thick we talking about..

Hi

It was a German make from Topstiles if memory serves me well, and about 5mm and more in other areas but not certain

The wall was also skimmed a few days earlier

Thanks

 

[msg2004]

glass has a high coefficient of expansion , spot on Gary mate !, i same happens with glass mosaic used in swimming pools outside that are exposed to the hot/cold weather /water of pool ...... you should use extra expansion joints with these materials IMHO .........

Hi

thanks to all those that have tried to help

I'mnot sure what you mean by "expansion joints."

The tiles are only in 5 layers and about so about 500mm high, and in other places just one layer and some of thos have cracked as well.

thanks again

 

[DHTiling]

Hello

The tiles are all over the kitchen and none above the hob as yet.

OK, so not thermal shock from cooking heat..

Was a rapid setting cement based adhesive used... sometimes certain adhesives as they reach tensile strength can craze fully vitrified tiles or high glazed tiles.. are they resin backed or painted..

 

[msg2004]

OK, so not thermal shock from cooking heat..

Was a rapid setting cement based adhesive used... sometimes certain adhesives as they reach tensile strength can craze fully vitrified tiles or high glazed tiles.. are they resin backed or painted..

Hello Dave

Not sure re exact adhesive but will check with the tiler next week as he is coming arounf. The backs of the appear to be resin based.