The isolation of the floor of a basement is not as simple as deploying a carpet. Because most concrete foundations are poured directly on the floor, the basement loses a lot of heat. Although plastic help prevent moisture will probably not serve as a heat loss. The most effective way the basement floor insulation is to build a subfloor over concrete foundation, using plywood 5/8 inch (1, 5 cm) on a layer of foam or wood conglomerate. The subfloor must be fixed to the concrete floor with appropriate screws. This will keep your subfloor fixed and also create a flat surface so you can apply the screed. You still have to follow all application instructions flooring, including the foam layer for installing laminate or hardwood.
Many people choose the least difficult option and simply put a carpet with a layer of foam in their basement floor insulation. This alternative has several problems. First, your carpets are susceptible to moisture, which can penetrate the fibers and cause damage. Even with a plastic and a layer of foam, it is likely that your floors stay cool. Although the heat increases, it will be lost through the concrete base, so will the basement cold because it is not well insulated.