Quartz tiles popping up

[leony]

Hi,

One of our clients that we supplied have got a problem with quartz tiles. They have done the installation themselves and now they are saying some tiles are popping out:

The method they have used if I try to explain briefly:

- Tiling was done using 10mm notched trowel
- Tiles were skimmed back with more adhesive to solid back over underfloor heating cables
- Customer claims underfloor heating was never turned on after our warning.
- The sunlight beams through patio doors and the area gets warm.
- The warped tiles (like banana shape) pops up where the sun hits but also where the sun does not hit
- Cooker might give heat from bottom and this will be insulated (builder says)
- 20mm expansion gap were left all around the room
- The adhesive been used is single part flexible adhesive (not two part)
- The substrate is not clear but from the information seems like plywood.
- We do not know how many mm is the grout gap

The question they are asking, why would these tiles get warped like banana?

Also if you advise what else we can ask to get more info.

Any help is appreciated as currently as usual they blame the tiles.

 

[mz30]

Heat makes them banana but never seen it from direct sunlight ,have seen it with underfloor heating.

 

[Andy Allen]

It is the fault of the tiles they should never been sold to go on top of ufh because they bow like your now finding out. .

 

[nybor62]

its about time the suppliers were educated about quartz tiles . lost count how many times this has occured

 

[Dave]

Yes direct sunlight can make the tiles warmer than what ufh does, the new bs5385 standard on resin based quartz etc does state about this matter with heat and quartz tiles and suppliers should know what they are selling isn't fit for purpose.

Also on certain quartz it is advisable to use minimum S2 adhesive.

 

[Time's Ran Out]

Did you know when you supplied the tiles that they were being fixed over UFH cables?
If you did you deserve the aggro you are getting!
However IMO the responsibility should be with the fixer who should advised that these tiles were not suitable and refused to lay them. By undertaking this work he is responsible.

 

[White Room]

Hi,

One of our clients that we supplied have got a problem with quartz tiles. They have done the installation themselves and now they are saying some tiles are popping out:

Are you refering to the home owners who fitted the floor themselves....

 

[One Day]

I'd guess it's primarily the tiles. So much rubbish "quartz" around these days.
Should be fixed using an adhesive using a minimum of water i.e a 2-part or BAL PTB.
Curling all over - not just in sunlit areas suggests either use of ufh or excess water in the adhesive.

Anyone else hate how these are called "quartz"?!

 

[leony]

Hi,

One of our clients that we supplied have got a problem with quartz tiles. They have done the installation themselves and now they are saying some tiles are popping out:

Are you refering to the home owners who fitted the floor themselves....

Hi,

Thank you very much for your replies. Sorry for above, I meant a tiler rather than the home-owner.

In regards to ufh, after installation, the customer advised that they installed underfloor heating and we told them that these tiles are not suitable with ufh. In our defence, we have no idea how the tiles are being installed or where. And the customer claims, they have never turned on underfloor heating, also this means tiler does not have a clue about installing these tiles.

So the fault comes to sunlight (temperature variations) or adhesive? (should be 2 part adhesive, rather than 1 part?)

In my opinion, the tiles should not bow on its own (which would mean that fault lies within the tile) without an external factor?

 

[Time's Ran Out]

IMHO you need to contact the tile manufacturer and get their representative to make a site visit.

 

[Stef]

I've fixed Quartz on top of ufh with weber spf rapid without problem.
I phoned weber technical to check & they told me to use an spf either standard or rapid.
The quartz were gulf stone & these are the only ones I would fix in this situation.

 

[Time's Ran Out]

But you don't get the temperature variation in Scotland - its either cold or freezing!
And after tomorrow you'll be out in the cold !

 

[Andy Allen]

But you don't get the temperature variation in Scotland - its either cold or freezing!
And after tomorrow you'll be out in the cold !

:lol::lol:

 

[Andy Allen]

But you don't get the temperature variation in Scotland - its either cold or freezing!
And after tomorrow you'll be out in the cold !

:lol::lol:

 

[Stef]

But you don't get the temperature variation in Scotland - its either cold or freezing!
And after tomorrow you'll be out in the cold !

We will be rich TJ, rich beyond our wildest dreams!!!!!!

20 degrees yesterday & today, something strange happening...