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Technical Data

Thermal Insulation

Thermal insulation with standard triple glazing and highly thermally insulating edge seal (Ug = 0.5 W/m2K) Uw = 0.69 W/m2K
For best energy efficiency SOLAR+ glazing (Ug = 0.6 W/m2K and g value 62 %) Uw = 0.76 W/m2K

Sound Insulation

Soundproofing up to 46 dB (with corresponding glazing)

System Description

  • 90 mm construction depth
  • Revolutionary I-tec locking as standard, this means fully integrated concealed hardware
  • Visible or concealed drainage
  • Shortened aluminium attachment clad available upon request, for thermo-technical optimised construction connection
  • Triple gasket system
  • FIX-O-ROUND technology
  • RC2 N as standard (without lockable handle) acc. to EN 1627–1630
  • Multi chamber system with additional highly thermally insulating thermal foam (HCFC, HCF and FC free)
  • I-tec ventilation available upon request
  • Stylish sash created through profiled frames – with the advantages of sash finished in all-glass appearance
  • More light through narrow view widths up to 80 mm

Internorm KF 500 UPVC/ALUMINIUM - Window Profile

I-tec Features

iTec locking logo
iTec ventilation logo
iTec glazing logo

UPVC Version

With this innovative composite window in attractive glass appearance and modern square-edged frame design integration into the facade is possible on three sides. Modern interior design with square-edged sash.

I-tec Locking

Integrated locking flaps instead of locking pegs ensure the safe locking of the sash. Therefore, the standard hardware version already complies to RC2 N (without lockable handle) acc. to EN1627-1630, standard tested burglary protection.

I-tec Ventilation

Continuous fresh air for the whole room and your well being. Uncontrolled airing leads to energy losses. The I-tec ventilation is equipped with a heat exchanger. 86% heat recovery reduces the energy losses to a minimum.