Semi-automatic pressure ventilation V40P to prevent wind gusting.
External aluminium colour reference RAL7022.
Natural pine wood frame.
Internal finish 3 layers of white polyurethane varnish.
Bottom placed handle with 2 micro opening positions.
Glass construction from outside to inside = 4H-Tg15Ar-33.2T - the outer pane is a 4mm toughened glass, 15mm warm TGI spacer filled with inert argon 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 a U-Value of 1.3W/m²K (glass U-Value 1.0W/m²K).
