Janisol HI windows

Janisol HI windows combine aesthetics with refined technology. Slender frame profiles enhance the architectural styling while the innovative technology ensures the best possible thermal separation. With triple glazing, it is easy to achieve windows with excellent thermal conductivity coefficients (Uw), e.g. 0.69 W/m2K for fixed lights and 0.8 W/m2K for opening elements. Thanks to high-tech thermal break spacer bars made of glass-fibre reinforced plastic, the new window system also benefits from excellent structural values and achieves top values in system tests (air/water/wind). The Janisol HI window is the first steel window ever in Switzerland to achieve Minergie certification.

Materials / surface finish
Strip-galvanised steel, suitable for powder coating or stove-enamelling

Window types / opening options

  • Single and double casement windows, with and without fixed side panels or transom window
  • Side-hung, turn-tilt, bottom-hung and top-hung windows
  • Fixed glazing


  • Concealed or surface-mounted fittings
  • Integrated or surface-mounted electric drives

Special technical features

  • Depth of casement 90 mm, fixed glazing 80 mm
  • Infill elements 66/56 mm (triple glazing)
  • Casement sizes up to 2.8 m high
  • Very good structural values, narrow face widths
  • Weight of casements up to 180 kg

Test certificates

  • CE marking in accordance with product standard EN 14351-1
    • Tightness against heavy rain up to class 9A (600 Pa)
    • Air permeability up to class 4 (600 Pa)
    • Resistance to wind load up to class C4 (1600 Pa)
    • Airborne sound insulation up to Rw 46 dB
    • Heat transmission coefficient Uw > 0.69 W/m2K for fixed glazing
    • Heat transmission coefficient Uw > 0.8 W/m2K for windows
  • Shear bonding in accordance with EN 14024
Janisol HI windows