Aluminum-wood is the system that, in terms of maintenance and duration, it gives all the advantages of the outside in aluminum without to give up the heat and the elegance that only the true wood knows how to give. The kept of the air and of the the water is type open-joint, the isolation among the aluminum and the wood is guaranteed from two gaskets and from blocks of plastic material that serve both to secure the wood to the structure in aluminum, both to compensate possible expansions of the two different materials. The inside frames in wood ingot uniformly dried, they are treated with protective and no-mould paints that assure an unchanged beauty. The wood results very stable and immune from deformations, the external frames in aluminum are treated with dust painting in thermosetting polyester and polymerized to oven. The aluminum makes the strong and stable fixture in the time, maintaining all the characteristics of isolation thermal acoustic without any maintenance.