For both windows and French doors, a U-value below 0.8 W/m²K is considered suitable for passive houses. With a U-value of up to 0.74 W/m²K, our uPVC profile energeto 8000 ED more than meets these requirements. This is achieved by a sophisticated 6-chamber system with three sealing levels and highly insulating thermal foam. With these excellent values, the energeto 8000 ED is also eligible for passive houses.