In water underfloor heating, copper or plastic pipes are placed on a thermal insulation layer of appropriate thickness. Depending on the system, it is made of expanded polystyrene or rigid polyurethane foam, tongue and groove or butt joint. Pipes in various configurations are laid on this layer, loops, coils, circles, etc.. Pipes must be attached to thermal insulation. They are most often attached to special nets placed on the insulation, by bolting with wire.
