Passive House certified windows   Eco Windows P9000 – State-of-the-art system for windows, doors, and lift-slide doors, with a choice of two or three sealing levels – Great energy efficiency & sound insulation – Narrow PVC frame – Outstanding break-in resistance System with rigid central gasket P9000 is the new central gasket system with a stable bar in the window frame. The central gasket bar effectively protects the mechanical parts in the window from external factors. Central gasket systems stand out for their excellent insulation qualities. Outstanding break-in resistance Even the standard version of the Passive House certified windows P9000 systemRead More