I am going to install a "Swiftlock" laminate (item #171683 from Lowes), I do not want a "hollow" sounding floor. I know I need a vapor barrier but do I need a foam underlayment as well?
You will want to look at the more premium types of laminate underlayments that will give you your vapor barrier, sound deadening, and a little extra insulation.
Lowes should have that in stock for you.
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