Hello,
We are installing a floating laminate floor over cement. Cottage was built pre-1980 and doesn't have a vapor barrier. Cement is 4" above grade.
Our contractor wants me to use Dream Home Quietwalk underlayment from Lumber Liquidators. Instructions (confirmed with the manufacturer) state that the vapor barrier should face up rather than down and in contact with the concrete. This makes no sense based on what I've read and the opinion I received from another contractor (vapor barrier should be on the bottom). Lumber Liquidator told me to install a 6 mil. vapor barrier on concrete and then install the Quietwalk per its instructions, but I am worried moisture will just get trapped between the two vapor barriers.
I am inclined to install a 6 mil. vapor barrier directly on the concrete and then install either 3 mil or 6 mil squares of cork as the underlayment for the floating laminate floor.
I've been driving myself mad trying to figure out the right thing to do and would greatly appreciate any opinions.
Thank you.
P.S. My contractor says that I am over-thinking this.
We are installing a floating laminate floor over cement. Cottage was built pre-1980 and doesn't have a vapor barrier. Cement is 4" above grade.
Our contractor wants me to use Dream Home Quietwalk underlayment from Lumber Liquidators. Instructions (confirmed with the manufacturer) state that the vapor barrier should face up rather than down and in contact with the concrete. This makes no sense based on what I've read and the opinion I received from another contractor (vapor barrier should be on the bottom). Lumber Liquidator told me to install a 6 mil. vapor barrier on concrete and then install the Quietwalk per its instructions, but I am worried moisture will just get trapped between the two vapor barriers.
I am inclined to install a 6 mil. vapor barrier directly on the concrete and then install either 3 mil or 6 mil squares of cork as the underlayment for the floating laminate floor.
I've been driving myself mad trying to figure out the right thing to do and would greatly appreciate any opinions.
Thank you.
P.S. My contractor says that I am over-thinking this.