Chinese Oak Floor Swolen

[daza1001]

Hello,
I am trying to help out a customer.
They have a Chinese oak floor approx 21mm thick installed approx 7 years ago (not by myself).
The have suffered with it swelling before but this time it is a lot worse. I has pushed all the skirting boards back at the bottom & raised the floor in sections approx 75mm high off the sub floor.
The oak is glued down with 4 blobs of adshive on each board (looks like gripfill) to 6mm plywood. The ply is brad nailed to the timber floorboard sub floor. I do not think this is the correct way of fitting even though it was installed by a flooring contractor
A lot of the boards are also cupping badly.
I have had to cut out a section today as it was nearly fracturing the copper radiator pipe.
Any ideas what I can do? I was going to remove all the scotia beads & trim approx 15mm from the edge of the boards but would this solve the problem?
Thanks

 

[big-all]

sounds very drastic
if its been down for years suspect a leak or some other substantial change perhaps plastering or a new regime like mopping the floor

ask them what has happened or changed in the last 6 months or so