Moisture barrier between plywood substrate & laminate floors?
My husband and I are installing the Harmonics laminate flooring from Costco this weekend. I've read tip after tip on how to do it and keep coming across a need for a moisture barrier over concrete slab. However, after pulling up a corner of carpet and padding we noticed there is just plywood. Can we put our laminate flooring right on top of that or will we still need a moisture barrier? If not a moisture barrier - anything else we should put down before the laminate?
*all useful tips/hints/advice are welcome!!*
Thanks in advance!