Buckled engineered wood floor

[PicaNewName]

I wonder if anyone can advise: we've had engineered wood floor installed in the main kitchen-diner-living area in 2019. it had been indoors for at least a couple of months before laying due to the building works being late. The instructions recommended 'floating' installation so they were never glued down.
We had a leak in the kitchen tap a few months after the flor was installed.
The floorboards started moving later on, which we assumed was due to bad installation, kept kicking/gluing them back into place to no effect. And now they've started buckling.
This makes no sense to me as I thought the ufh would cause them to shrink if anything. (The house is tenanted.)
Did this happen to anybody else?
I wonder if there was another leak in the house that could have caused this that we don't know about or could it he bad quality floor?
When tenants move out it'll all be taken up but ideally, I'd like to reuse it in our current house, if that's possible.

Water can get stuck under the foam that is laid under the wood. Then they might warp with damp. You probably need to have a look.

Do you know the type of engineered floor?
one of the types needs to be kept away from water as the core of each board will swell if exposed to water.

was the leaking tap actually a leaking pipe leading to the tap?

@tanstaafl I'm not sure what type it was, but I don't remember seeing anything like that on the instructions. It has been discontinued since.
It was the drinking tap connected to the sink that leaked un the cupboard, the floor. We'd used a carpet cleaner to suck up as much water as we could at the time. But I think it was in the summer so didn't put the hearing on. This was in 2019 and the warping is fairly recent (this year, maybe last).

And when you say warping, can you post pictures?

Unfortunately not. i don't go over there.

Your tenants are saying the floor is warping and buckling but you don’t go over there so you’ve no way of knowing if they’ve caused it in the last few weeks or months?

There is damp coming from somewhere for sure. I've had engineered boards warp but it was the super powerful steam iron that did it.

Yepp. My husband deals with the rental, I can't face it. I loved that house.

Thank you. I'm not sure they're deliberately causing this. It makes no sense to me without further leaks and only happening in the kitchen.

It’s almost certainly a leak. We had underfloor heating (wet system) leak and floor buckled pretty quickly. It expends with damp. So I think you need to take the boards up and look.

Your household insurance should cover this. Good luck 🎄

Yes it should. We had to get skirting boards off snd have a new floor and redecorate. Solid oak floor in our case. I think our insurance agreed on £3,500 - 5 years ago.