*Uf = 1.1 W/m²K; with triple glazing, a Uw of 0.90 W/m²K can be

achieved


*these top values result on the one hand from bonding the


window sash to the glass pane and on the other hand from


reinforcing the frame with specially developed PBT


*delicate classical profile design for light-flooded rooms


*outstanding sound insulation up to sound transmission class IV

tested burglary resistance class RC2
ENERGETO 4000



The backstop gasket system energeto®4000 with a profile depth



of 70 mm is mostly used in the renovation sector and allures with


smooth, filigree profile lines that let more natural light into your


rooms. Top insulation values ensure comfortable room


temperatures.