Windows: uPVC: Home Soft: KF410 2018-11-12T20:12:47+00:00

Windows: uPVC: Home Soft: KF410


The completely flush transition of frame and sash combines KF 410 to one unit. Once the frame is rendered into the brickwork on three sides, only the narrow, square-edged sash frame remains visible.

The frame is insulated seamless through the new insulation technology and thermal insulation is considerably improved. Technological advances with airing is provided by the I-tec ventilation. The ventilation system which is integrated in the frame ensures sufficient fresh air and ideal room climate 24/7.


Classic rounded design outside and inside
Can be perfectly combined with timber/aluminium windows due to same outside appearancee

Technical Data

Thermal insulation

Thermal insulation with standard triple glazing and highly insulating edge seal
(Ug = 0.5 W/m2K) Uw = 0.72 W/m2K For best energy efficiency SOLAR+ glazing (Ug = 0.6 W/m2K; g value 64 %) Uw = 0.79 W/m2K

Sound insulation

Soundproofing up to 45 dB (with corresponding glazing)

System description

90/93 mm construction depth
FIX-O-ROUND Technology
Fully concealed hardware
Standard security
Triple gasket system
5 chamber system with highly thermally insulating thermal foam (HCFC, HCF and FC free)
I-tec ventilation available upon request



Along with the aluminium attachment clad version in all colours, the classic UPVC version in white is also available. Gaskets of the UPVC version are light grey as standard.

Continuous all around fixing of the glass pane ensures better stability, thermal and sound insulation, burglary protection and functioning security.

Individual control of fresh air for each room – no big heat loss, no pollen, no outside noise, with increased security.