LVT glue down subfloor , how was it done

Hi Guys I am trying to figure how those LVT glue down was put down,

Can you tell from this picture which I done in bathroom area behind toilet?

 

looks like it was fitted on softlay pro which is a lvt underlay with an adhesive top.

 

Yes I was thinking that,

Wouldn't this be against karndean guidance? I have feeling that flooring company cut some corners and use that straight on chip board

 

You can use it straight on chipboard if it’s flat?


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Not sure but I read karndean standards and they saying plywood so if it's sticked to chipboard then I guess invalidate warranty?
Issue I have is that floor looks like have poor adhesion around rooms perimeter and around door frames, you can feel deflection when pressed.

I am waiting for flooring company to get back to me as I asked them questions about this

 

I didn’t think it stuck down? That’s probably why it’s lifting


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I’m not sure karndean would approve it as you say


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