We just did one room of Pergo flooring over concrete and used a premium vapor barrier that had a foam-like cushion attached to the plastic sheeting. We were told this is the best way to go as it seals for moisture while at the same time allows better accomodation to slight imprefections in the concrete, provides insullation between the Pergo and the concrete slab, and also gives some sound deadening in the room. We have seen all these benifits and the flooring worked out well.
The aspects of the premium underlayment also gives a slight cushion to the flooring and gives it a slight hollow sound when walking on it with hard shoes.
Our question is if this is a detriment or an asset to the house value. We see the benifits from the premium underlayment but not sure if the cushiony feel and hollow sound when walking on take away from the overall appearance.
Thanks!!!!