Install Vapor Barrier Over Concrete Floor

We are in florida and would like to know the best method for installing 6 mil poly vapor barrier over our concrete slab prior to putting down laminate flooring.

Install vapor barrier over concrete floor.

Wrap vapor barrier up edge of wall 3 4 inches and tape to wall. A vapor barrier against the concrete surface is generally recommended before wood framing or flooring materials are installed. Use vapor barrier 2 in 1 when installing laminate flooring on cement subfloors or any subfloors with a risk of moisture coming up. Of rigid moisture proof insulation.

I have been told to fold it upwards at the perimiter a couple inches bringing it up in front of the baseboard and then attaching quarter round against it. Cover exposed foundation walls with 1 1 2 in. Vapor barrier 3 in 1 underlayment is perfect for installation under laminate flooring to allow your floor to float and give a moisture barrier. If your concrete passes the moisture test then plastic sheeting at least 6 mils thick will prevent moisture from getting into your laminate flooring.

Where plastic sheets must be joined overlap the sheets by several inches and use strong vinyl tape to secure them. May be higher check job specifications or building codes. A concrete floor with a too high moisture content can wreak havoc on a vinyl floor. How to install vapor barrier on concrete floor under laminate flooring always read the flooring manufacturers recommendations and instructions before installing the underlayment.

Before rolling out the underlayment be sure to sweep vacuum and remove all debris on the substructure. Tips for concrete floor vapor barrier installation. Install a plastic vapor barrier. Unroll 1st piece of vapor barrier along one edge of floor.

We used thermax brand available through lumberyards of polyethylene vapor barrier because it doesn t require an additional fire barrier. Vapor 3 in 1 moisture underlayment. This not only insulates the walls but also keeps rising dampness in the concrete from getting into the crawlspace. A concrete floor seems like the perfect base for a vinyl floor installation.

Crawl spaces benefit from a polyethylene moisture barrier placed directly over the exposed earth. A vapor barrier should be used for all concrete floors and slabs that are going to receive an impermeable floor finish like epoxy laminate linoleum and wood or if the concrete floor will be used for any purpose where the passage of water vapor through the floor may create problems.