My solid oak floor had been down for about six years, that was glued!! when we decided to go for amtico, we left the oak down and latexed over it and installed amtico, three and half years down the line you can see every board where it has expanded and contracted with temperature changes over the seasons.
If I was doing your job I'd insist they have boards removed, if not get them to sign a waver for problems that may arise under your guarantee if you provide one.
There's no substitute for doing the job properly but if they are prepared to waive that at least you don't lose the work, and yes everybody else will comment that I am suggesting you do a substandard job.
Anyway that's my view.....and no swearing!!!!!
If I was doing your job I'd insist they have boards removed, if not get them to sign a waver for problems that may arise under your guarantee if you provide one.
There's no substitute for doing the job properly but if they are prepared to waive that at least you don't lose the work, and yes everybody else will comment that I am suggesting you do a substandard job.
Anyway that's my view.....and no swearing!!!!!