nealtw
Contractor retired
Is the sub floor nailed to concrete slab, no basement, no crawlspace?
Partical board never ever should have been used as a subfloor. It will wick up moisture like a sponge, swell up and turn to oatmeal.
Your looking at removing everything down to the slab and starting over for flooring to have a chance, including tile.
Real hard wood over a slab is never a good idea. Engineered floor would have been a better choise if someone wanted real wood looking floors.
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