Windows in Passive house constructions have a U-value of 0.8 W/m2K or less. SGG ACTIVE Pro 0.6 is the most popular and proper choice for the passive house window, because it gives the best thermal performance with Uglass-value of 0.6 W/m2·K with the triple glazing composition, that could do great contribution to make sure the Window u-value ≤ 0.8 W/m2·K.