variants: forster unico : steel windows and glazings, windows and glazings for fire-protection, burglary-resistance, bullet-proof forster unico HI : for higher thermal insulation forster unico XS: for ultra [...] 1210 mm max. leaf height: 2530 mm Performance specifications* Uf > 1.9 W/(m²⋅K) forster unico Uf > 1.0 W/(m²⋅K) forster unico HI System properties CE-marking according to EN 14351-1 leaf weight up to 150 [...] Forster unico is the revolutionary, thermally insulated profile system for steel windows and exterior glazed units. The basic profiles comprise 100% recyclable steel and contain no synthetic insulating