Addressing climate change in the building sector requires higher levels of energy efficiency of all envelope components, especially in cold climates, to reduce the annual heating demand. Windows and doors are typically the weakest points in the thermal envelope for convection, conduction, and radiation.
ENERsign® stands for wood-aluminum windows and doors with the highest energy efficiency standards. The best insulation and air-tightness values can be achieved through the interaction of design and material selection.
Our windows and doors are certified by the Passive House Institute Dr. Feist, Darmstadt (Germany) and will help you design new buildings, passive houses or prefabricated houses for thermal comfort, energy efficiency, and moisture control in cold climates.