The warmth of wood and the solidity and durability of aluminium merge in the METRA Building Aluminium-Wood line.Integrated systems with an external aluminium side available in unlimited finishes and the inside coated with a thick layer of natural wood, to be chosen among a variety of wood types. The performances of this line are extraordinary: perfect tightness, resistance, non-deformability, sound insulation, water tightness, resistance to air, salt and aggressive atmospheric agents and zero maintenance. In addition, the thermal break guarantees the maximum energy saving. In addition, high levels of burglar-proof security, mechanical safety with perfect opening and closing, predisposition for burglar alarm systems and home automation.