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S9-iV is a double glazed louvre window without a thermally broken frame.

The first window of its kind with insulation glass, HAHN Louvre Window S9-iV provides excellent ventilation and weather tightness, without thermal break of the Aluminium sections, resulting in lower cost. The Louvre blades feature slim surrounding aluminium sections.

The S9-iV has been certified for natural smoke and heat extraction (EN 12101-2).

Material and Finish

Aluminium sections with thermal barrier. Silver anodised finish (special colours optional) or powder coated to RAL colour.


Double insulation glass (glass thickness 24 mm, standard combination 4/16/4).

Glass types

Various combinations of glass in regards to thermal insulation or protection, depending on specific requirements. Glass can be either float, semi-tempered, toughened or laminated.
Sandwich panels can be offered in various combinations instead of glazing.


  • Manual operation by hand lever, crank handle or hand wheel
  • Electric operation by 24vDC or 240vAC motor.
  • Pneumatic
  • 24vDC electric motor operator is required for NSHEV model compliant to EN12101-2

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