Tiles coming up, cracks, and hollow points

[Old Mod]

Hi, I’ve yet to read this thread unfortunately, but it has come to my attention that there a lot of calls to
‘Not pay’
Whilst this may be the action you are ultimately advised to carry out by a qualified professional, we are not authorised or qualified to encourage you to take this action.
These are opinions of individuals, and not the forum as an organisation.
Just want to make sure you are aware that we do not have the authority to instruct you to take that course of action.
Please take professional advice over payment.

Marc.
Admin.

 

[Old Mod]

Having now read all the posts, I can agree it’s a very unfortunate position that you find yourself in.
I’ll agree that in some images you have provided a laitance does seem present, if so it appears very unlikely that it has been removed prior to fixing.
On the subject of priming, it would normally be visible in some way.
If it was coloured, which many are, you would clearly see a coloured residue on top of the screed.
Even if it was white or clear, you would still see a clearly defined sheen to the top of the screed denoting priming had taken place.
Even after many months, this residue is apparent.
Moisture content could also be an issue to be looked at, was it moisture tested initially?
3 months holds no guarantee that it was devoid of moisture, that would also present in a way that you are showing from your images.
Was the property water tight before the screed installed?
The areas of the floor that appear completely devoid of adhesive where tiles have been lifted (tram lines only visible) could possibly denote incorrect preparation ie. adhesive unable to bond sufficiently to the substrate.
There is guess work here until you’re able to provide all relevant information.
The trouble with voids over ufh is that it can superheat the air in the voids and can pop the tiles from the adhesive, as I understand it anyway.
Typically there’s never ONE reason an install fails, it’s an accumulation of issues that ultimately leads to a catastrophic failure, which you do appear to be on the verge of.
One tile cracking is one thing, but numerous tiles in numerous places is something completely different, especially if it’s not in a straight line thro the line of an extension for example.
That’s more easily diagnosed as a shift in between new and old building works.

 

[Old Mod]

To help you as a consumer there is a video which depicts the way tiles should be installed produced by the NTCA (National Tile Contractors Association) in North America.



As a solution to your problem, it MAY be possible to resin inject your floor to save the rest.
But this is not guaranteed to be suitable repair for your particular installation. .

 

[One Day]

I had a company come up from Oxford to quote for resin injection on the floor here, the volume required made it more expensive than a complete re-tile!

 

[Old Mod]

I had a company come up from Oxford to quote for resin injection on the floor here, the volume required made it more expensive than a complete re-tile!

I suppose you have to weigh it up against the overall disruption and risk of damage to the existing kitchen.

 

[One Day]

I suppose you have to weigh it up against the overall disruption and risk of damage to the existing kitchen.

Agreed, but it was truly eye watering!

 

[DazedConfused]

Agreed, but it was truly eye watering!

Do you have a ballpark figure of the cost per square meter just so I can get an idea? The kitchen company informed me that the tiles that cannot be taken up could have resin injected, it appears to be under 10 tiles

 

[DazedConfused]

Hi, I’ve yet to read this thread unfortunately, but it has come to my attention that there a lot of calls to
‘Not pay’
Whilst this may be the action you are ultimately advised to carry out by a qualified professional, we are not authorised or qualified to encourage you to take this action.
These are opinions of individuals, and not the forum as an organisation.
Just want to make sure you are aware that we do not have the authority to instruct you to take that course of action.
Please take professional advice over payment.

Marc.
Admin.

thanks for this reminder

 

[Dumbo]

can I insist they redo the tiles or would these incorrectly laid tiles not be considered a defect until they actually crack?

That Is a question for your solicitor . I think it's fair you ask for our opinion on your work and even what we think may or may not happen in the future . But certain questions like what course of

Do you have a ballpark figure of the cost per square meter just so I can get an idea? The kitchen company informed me that the tiles that cannot be taken up could have resin injected, it appears to be under 10 tiles

You probably can not cost per square metre as there will be a variable cost as to how much material is used .

 

[DazedConfused]

Ultimate for a reason! Good choice, even if a bit "icky" to work with.
Look out for Magix S2...

The contractors have agreed to start relaying a good portion of the tiles. Should I suggest they used Tilemaster Ultimate S2 adhesive?

 

[Ajax123]

you should not suggest anything. they should tell you what they intend to use. if they say something you are not comfortable with then you can query it.

 

[DazedConfused]

you should not suggest anything. they should tell you what they intend to use. if they say something you are not comfortable with then you can query it.

understood. I did say I was concerned about their choice of adhesive given some of the comments in this thread and they seemed ok with
me offering an alternative, so just wondering what yo guys thought might be most suitable

 

[Ajax123]

they are the tilers. You are not. They are therefore the "expert" in the relationship. If you suggest the adhesive and they use it and it goes wrong again they would have a lot of wriggle room to deny liability. the British Standards are clear on the types of adhesives used for different applications. If they tell you what they are going to use call the manufacturers to make sure its suitable.

 

[DazedConfused]

they are the tilers. You are not. They are therefore the "expert" in the relationship. If you suggest the adhesive and they use it and it goes wrong again they would have a lot of wriggle room to deny liability. the British Standards are clear on the types of adhesives used for different applications. If they tell you what they are going to use call the manufacturers to make sure its suitable.

unfortunately, whilst they did the tiling, the contractors are not professional tilers.

Given they denied anything was wrong with their fixing method from the start I have little faith in their ability to relay the the tiles properly the second time, let alone pick the correct adhesive.

I fully understand your point about liability so I'll give the tile suppliers a calls to see what their recommended adhesive would be.

 

[Dumbo]

unfortunately, whilst they did the tiling, the contractors are not professional tilers.

Given they denied anything was wrong with their fixing method from the start I have little faith in their ability to relay the the tiles properly the second time, let alone pick the correct adhesive.

I fully understand your point about liability so I'll give the tile suppliers a calls to see what their recommended adhesive would be.

I think you misunderstand @Ajax123 he is saying, see what they say they are going to use then check with manufacturer's. As Alan says if you tell them what to use which is essentially you specifying the job and it fails the failure could be put at your door as you are/we're the specifier of the adhesive .