Our wood-aluminum windows, certified for cold climate zones by the Passive House Institute, feature a slim and elegant frame made of local coniferous wood and a corrosion-free aluminum outer shell for durability and weather resistance. The thermo rigid foam profile ensures superior insulation without thermal bridges, and the “zero-frame view” offers an all-glass appearance from the outside. These windows come with standard safety features like the ENERsafe window fitting and are finished with environmentally friendly, water-based glazes for a biocide- and solvent-free interior wood finish.