Is this kardean supposed to do this?

We had a kardean floor laid about 5 months ago. The floor underneath wasn’t in good condition so we paid a lot to the company for a screed underneath which they said would level it. It didn’t seem right from the start and we had the company back because there were gaps between the boards so they lifted a sizeable section and relaid that bit which is now fine, however gaps are appearing in the other areas now, perhaps this is just what karndean does? Would appreciate any advice
I’ve tried to post photos but they don’t want to upload. Advice on how to add these would be great

 

Here are the photos

 

It is what LVT does. sunlight, temperature change and wrong adhesive all play a part

 

Just needs more silicone

 

this is actually putting me off my food

 

Was it a different fitter who refitted part of it?

 

This looks a bodge job

 

If the same product has been refitted on the same subfloor with probably the same adhesive and is fine, then i'd probably say the issue was with the application of the adhesive, at least for the movement and lifting problem, the rest is another issue

 

No the same fitter. It seems to be separating between the new bit and the original bit (laid within 2 weeks of each other) but then also lifting at some of the boards. Some of it is totally flush but then there are gaps opening. I don’t know about silicon because it’s mostly not at the edges?

 

Anything we could do to fix it?

 

I’m sorry floor is messy, kids would not leave the room to keep it clear

 

So just wrong flooring choice do you think? Would be helpful to know, thank you

 

Noooo sorry didnt mean it like that, I meant the finish of fitting

 

If the same fitter has redone the section and that is fine then as it's been said it could be down to a lot of things...

Acclimatising of the karndean, temperature when fitting or late placement over the adhesive.

....then we can bring damp into the equation

 

Sorry, the silicone comments were sarcasm, as there shouldn't really be any, suggestions on how to fix it are difficult without knowing the actual cause and as you have heard already, there are several possibilities.
How old is the house and is the subfloor concrete or asphalt?

 

I wouldn’t say the wrong flooring choice but it’s not straight forward to install. There are a lot of pitfalls and it’s plastic so it’s very sensitive to heat and light and other plastics. You need a smoothing compound or plywood installed underneath it first and these can also cause issues if not selected correctly


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thank goodness