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...

 

[Time's Ran Out]

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

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

Its nearly enough to make your Quartz curl!

 

[Stef]

Its nearly enough to make your Quartz curl!

[emoji23][emoji23][emoji23][emoji23][emoji23][emoji23]

 

[russellp]

This sounds remarkably like our current situation (I believe it actually could be our sceanrio)...

We purchased black Quartz tiles (composition of 93% quartz and 7%polyster resin binder) from a supplier and had them fitted by a well regarded and recommended tiler in the area. He fitted them onto Under Floor Heating, however prior to completion it was recommended that we didn't actually have the UFH connected/wired in as apparently this has in the past caused problems with this tile type so we reluctantly agreed to have wall mounted heaters installed at a later date)

Approx 6 weeks past and then we noticed that 5 of the tiles had risen so we subsequently called the tiler and he re-visited and carried out the replacement of two (both bowed considerably). These tiles do actually have sun exposure via French doors in the kitchen and when the sun is out for a period of between 8-1pm. The tiles do become warm I can concur.

We have now experienced the same at the other end of the kitchen, however these 7 tiles are not exposed to any sun at all. We have the usual kitchen appliances (cooker, WM, DW) however all were brand new and insulated after consulting with the suppliers. I have taken the temp around them and it raises by a maximum of 3 degrees so my opinion would be that heat is not the issue here, however am open to ideas.
The method the tiler used was:-
- Tiling was done using 10 mm notched trowel
- Tiles were skimmed back with more adhesive to solid back over underfloor heating cables
- underfloor heating is not connected and was never turned on
- The sunlight beams through patio doors and proportion of the area gets warm between 8am-1pm & on sunny days the area gets rather warm.
- Two out of five raised tiles warped (like banana shape) where the sun has hit
- The tiles also pop up where there is no sun exposure (this is an area more affected)
- Cooker might give heat from the bottom, however is insulated (manufacturer says) by 3 degrees (the tiles located closest to cooker have not raised)
- 20mm expansion gap were left all around the room
- The adhesive used is Palace Chemicals part flexible adhesive grey
- The grout used is Bal flexible wide joint (5mm grout over the entire area)
Really look forward to your professional opinions here, however the tiler has arranged for Palace Chemicals to send a representative now for their opinion. Sorry for hijacking the thread if this isn't our scenario (we just want a flat floor).

 

[russellp]

Sorry - forgot to add that the builder managing this informs me that concrete screed then laid thermal tile backer board on top of that.

 

[Stef]

Sorry - forgot to add that the builder managing this informs me that concrete screed then laid thermal tile backer board on top of that.

I'm sorry but I think you answered your own question there, " The Builder?".
I'm not saying it is his fault but you should be employing a tiler to tile & not a builder...
He may say all is well & good but are you sure he carried out this instillation to the correct method?
I would say it's down to your tiles as the percentage of quartz you say is in the tile is not near enough in my opinion...

 

[russellp]

Sorry Stef, however (without being patronizing) you didn't read it correctly - the builder was 'project managing' and we had a respected tiler carry out the installation as stated in the info i recently submitted on here.

 

[Concrete guy]

How thick are the quartz tiles?

 

[russellp]

Hi, the dimensions are 600 x 600 x 10mm

 

[Concrete guy]

I think the thickness is the issue with these products. It should be 15mm thick for flooring use at a minimum.

10mm just isn't stable enough to retain it's shape when any sort of heat is applied particularly a 600 x 600mm.

 

[Stef]

Sorry Stef, however (without being patronizing) you didn't read it correctly - the builder was 'project managing' and we had a respected tiler carry out the installation as stated in the info i recently submitted on here.

Your right I never read it correctly, sorry.
This issue is becoming more & more the past couple of months.

 

[Time's Ran Out]

Are you sure you voted Yes or was it No!

 

[WetSaw]

Your right I never read it correctly, sorry.
This issue is becoming more & more the past couple of months.

What is? Not reading correctly or quartz tiles?[emoji6]

 

[Stef]

What is? Not reading correctly or quartz tiles?[emoji6]

[emoji35][emoji35]