Thanks for the reply. Yes, I am using the 2-in-1 underlayment. There are two rows of underlayment on the floor. The concrete under each row is darker than the section with nothing on the concrete. Moisture clearly is building up under the underlayment. I did not conduct a moisture test. I found out about the moisture when I had to move my unused stack of Pergo packages out of my workspace. The plastic on the packaging was wet underneath. So, I haven't, as yet, figured out "how much" water the concrete is giving off. I am currently conducting an experiment by putting two squares of linoleum on a bare section of the concrete. One square has a sheet of plastic over it, taped down, just as for the moisture test. I want to see if moisture builds up on or around each square. If the linoleum elsewhere in the house is intact and impervious to water from the concrete, would laying linoleum under the pergo (and underlayment) be enough to mitigate the moisture? Thanks again. Andrew |
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