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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 with Ug = 0.6 W/m2K and g value 62 %

Sound Insulation
Soundproofing up to 46 dB

System Description

  • 85 mm construction depth
  • Can be combined with KF 410
  • Highly thermally insulating thermal foam (HCFC, HCF and FC free)
  • FIX-O-ROUND technology
  • Fully concealed hardware
  • Visible or concealed drainage
  • Standard security
  • Triple gasket system
  • Designer locking parts
  • Resistance class up to RC2
  • In the standard version suitable for passive houses acc. to TU Graz
HF 310 Timber/Aluminium window profile.


Internorm iTec glazing profile

Ingenious Glazing System

Glass panes glued to the timber frame ensure good structural stability and high torsion resistance.

Fully Concealed hardware

As standard no visible hardware parts – for better appearance, easier to clean and above all for better impermeability from the inside.

Modern Design

The timber/aluminium window HF 310 stands out through its profiled exterior design.