70mm profile depth 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.
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