Laminate with pad over OSB
I am planning to install laminate (12 mm with pad) in my master bedroom. I've already removed the carpet
Subfloor is OSB, in relatively good shape. I only have 2 or 3 boards with seams not even. I will sand those area
Even though the laminate I've already bought have the pad attached, I would like to use a sound insulation such as 1/4" cork or the Bellawood Premium underlayemt from LL
Does the cork need to be glued on the subfloor, or can it be floating?
Can I work directly on the OSB, or am I better to staple down a 1/4" plywood (underlayment rated) with narrow crown staples?