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


*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


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