The Herculan ME XR 3+2 system is a floating sports floor, put on an underlayment of notched foam. The sports floor itself is built up of two layers of MDF, which is provided with a 3mm soft, absorbent underlayment, provided with a strong and flexible polyurethane top layer with a wear-resistant coating. Due to the relatively low height of the construction, this system is easy to install in both new constructions and renovations. An additional advantage of the notched foam is that possible small bumps are more easily absorbed.