The Herculan SE 3+2 system consists of two layers of plywood that are glued and screwed. This combination is placed on a wooden slatted construction. This slatted construction is previously provided with a moisture-resistant foil. The complete wooden substructure is provided with a 3 mm soft, absorbent underlay, provided with a strong and flexible polyurethane top layer with a wear-resistant top coating. The Herculan SE 3+2 system is suitable for installing underfloor heating. This application not only contributes to the comfort of the athlete but also has a favorable effect on operating costs.