Semi-automatic pressure ventilation V40P to prevent wind gusting.
External aluminium colour reference RAL7022 with a natural pine wood frame.
Internal finish 2 layers of clear lacquer. Glass construction from outside to inside = 4HS-Tg10Kr-4HT-Tg8Kr-33.2T - the outer pane is a 4mm toughened glass with an easy maintenance layer, 10mm warm TGI spacer filled with inert krypton gas, 4mm centre pane which is toughened with a low emission coating, 8mm Warm TGI spacer filled with inert Krypton gas.
The 6.8mm internal pane is an anti-burglary class of laminate 33.2 (class P2A, EN 356,1(B)1 wg EN 12600), complete with a low emission coating.
Producing an installed U value of 0.97w/m2k (centre pane value 0.5w/m2k). Acoustic rating 37dB (-2.-5).