4 different profile options: Functional, Renaissance, Deco, Hidden Vent 3 different insulation options: Standard HI, HI+ Masterovides high insulation and is the series likely to be used in the European market. Thermal insulation - Uf: 1.3 W/m²K Thermal insulation - Uw: 0.88 W/m²K Burglar resistances:RC2,RC3,PAS 24 Impact resistance:I5/E5