A brand-new innovation for passive houses! The Albio 131 Passive is a high-end thermal insulation opening system of the PREMIUM series, which is specially designed and meets the demanding requirements and mandatory regulations of passive buildings in Central and Western Europe (cool temperatures). The top choice for buildings that are constructed to achieve energy efficiency rating A or A+ (Passive Buildings). Its modern design in minimal straight lines and its innumerable typologies offer architectural interest and unique aesthetics to any building.