HAHN Louvres are high performance, thermally-broken operable elements for building facades. The windows feature an aesthetically clean and minimalist design, which maximises natural ventilation and airflow.

The louvres are available in a variety of triple, double and single-glazed options, which can be operated either manually, pneumatically or electrically. The units also meet European standards for smoke & heat extraction in the event of a fire.

System Overview

  • Simple and seamless integration into RAICO curtain walls
  • Excellent for natural ventilation
  • High degree of air tightness when shut
  • High spec double & triple glazing, or insulated panels
  • High quality, thermally-broken aluminium frames
  • Manual, pneumatic and motorised operation options
  • Meets European Standards for smoke & heat extraction (EN 12101-2).
  • Optimal use of space (minimal extension of panes when open)
  • Minimal frame to glass ratio
  • External Allglass appearance available
  • Low maintenance: durable powder coating or anodised finish, easy to clean
  • Burglary protection


The Tairmo range offers maximum energy efficiency through the use of aluminium extrusions with large thermal breaks; insulated profile cores; and triple-glazed units with warm edge spacers.

Tairmo is the first louvre window to comply with the German Energy Saving Ordinance (EnEV 2012).


The S9-iVt-05 is features outstanding advantages in regard to ventilation, weather tightness and thermal performance, as well as a high degree of security against burglary.

The glass inserts are framed with thermally broken aluminium profiles. The S9-iVt-05 is certified for use as NSHV (Natural Smoke and Heat Ventilation) device according to EN 12101-2, furthermore it is available with ball impact protection for use in sports facilities (DIN 18032-3).


With an appearance based on the S9-iVt-05 louvre, the Integral louvre comes with the control motor concealed within the frame.

Designed with maintenance in mind, the actuator is easily-accessible without the need to uninstall or dismantle the louvre to gain access.

HAHN Product Comparison