Hi All:
I installed Harmonics laminate in my living room and kitchen last week. In the kitchen, I laid the laminate over existing vinyl (which sits on a concrete slab) which is in great condition.I used Harmonics moisture barrier between the vinyl and the laminate.

However I noticed today that laminate in Kitchen had warped in a few places. When I removed laminate in the affected area, I noticed a lot of water collected between the moisture barrier and the Vinyl. Some of the moisture had seeped over the barrier (there was a lot!) and had screwed the laminate.

I am quite positive there was no water leak of any kind or any major spill. Before installing, I had a moisture check done on the slabs (and the vinyl) by Home Depot folks and it was OK. So what is the problem here? Should I not have installed moisture barrier between the vinyl and laminate?.... I need to figure things out if I have to reinstall laminate in the Kitchen. Look forward to hearing your suggestions. Thanks! :cry: