Normal PVAC will do, glue the complete T&G, not only a few drips and drops. Things to note: use proper sound insulation (2 - 4 mm thick, depending on the need of leveling). You can alos use bits of extra underlayment to level out bits of the floor that are unlevel (trial and error method)
dont' put cork-strips in the expansion gaps: a) they will fil the gap and b) will start to make noise when the floor expands.
dont' put cork-strips in the expansion gaps: a) they will fil the gap and b) will start to make noise when the floor expands.
