Periksa untuk memastikan beton dalam kondisi yang rata. Buatlah campuran perata beton. Mulailah pemasangan penahan uap air ketika beton telah mengering. Pasang Pergo sesuai instruksi sebelumnya.

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If you're laying Pergo over concrete, remove all carpet, trim, and other things covering the sub-floor to expose the concrete underneath. Before laying Pergo, it's a good idea to smooth out the concrete to make sure that you've got the flattest surface possible for the new installation. Use the level to make sure it's smooth, and take steps to smooth it out if necessary with new concrete. Uneven floors need to be smoothed out with concrete leveler. This usually comes in a 40-50lb bag, which can be mixed with water to prepare. In a bucket, mix a small batch of concrete with water as directed. Don't mix more than you'll use in the next hour, or it'll dry out and become useless and hard. Start at the lowest points in the room and pour a small reservoir, so you can mix water in and wet the concrete back up if necessary. Use a putty knife or a trowel to smooth out the concrete as thinly as possible, feathering out the edges of your work as you go. Wait at least 48 hours before installing a vapor barrier over the fresh concrete leveling job, then put down a vapor barrier as described previously. These polyurethane sheets are usually available from Pergo dealers as part of the package. Cover the entire floor with the sheets, which should be cut to completely cover the floor. Make it big enough on the sides so any vapor coming up will end up behind the baseboard. Tape the seams together before continuing with installation. Once you've smoothed out the concrete and added the vapor barrier, installing Pergo over concrete should be exactly the same as installing over wood. Pick a corner, start clicking them together leaving the appropriate amount of space between rows, and trim them to fit on the ends.