ThermoCarbon Hormann’s high-end exterior doors. A typical example of the German vision for a house door. Modern clean vision with a look at the small details and high heat and noise insulation. With an incredible 0.47 W / m².K, ThermoCarbon is among the champions of minimum heat transfer. Thanks to the high-tech profile of the wing, made of a hybrid material of carbon and fiberglass, this premium front door is like no other due to its high rigidity and impact resistance, as well as its high sound insulation. The ThermoCarbon front door is available in 15 modern motifs in 18 preferred colors.