High heat insulation and sound insulation performance, thermal conductivity Uw = 0,9 W / m²K (triple glass) Best-in-class water tightness (E1500) Inlaid glass thickness up to 50mm Sophisticated central interlock (only 50mm wide) Maximum load: 300 / 400kg Concealed anti-theft locking mechanism Anti-theft level RC2 Flexible construction to meet additional ventilation, wind resistance and water tightness upon request