New window with low U-value
The 1074 SX window system with a more efficient insulation and a rebate for triple
glazing units comes with U value reduced to 0.9 W/m2K for 1200 x 1200 mm windows.
Noise reduction (Rw value) up to 43 dB. Our aluminium window combines minimum
maintenance needs with good indoor comfort. We meet the requirements of the energy management authority.