The GP4900 aluminium window system has been certified by the Passive House Institute (PHI) in order to meet the high requirements of passive houses. It incorporates all the well-known  benefits of aluminium windows such as stability and high structural requirements with a superior level of thermal insulation value of Uw ≤ 0.78 W/m²K and the greatest possible degree of architectural design freedom.

Features & Benefits:

• Unique thermal insulation for aluminium windows in accordance with the passive house certification standard.
• Innovative insulation system thanks to 54 mm polyamides offering Uf value = 0.76 W/m²K with 102 mm face width.
• Increased sound reduction.
• Μulti-chamber central gasket that ensures optimum impermeability preventing energy loss.
• Superior safety due to the multiple perimetric locking.
• Vast selection of profiles in straight and curved cross sections.
• For all typologies of casements and patio doors.