Specialty Venetian Blinds in double skin facades - solar shading system

Horiso have designed and manufactured external venetian blinds which are now suitable for installation in double-skin facades. External venetian blinds installed between the two skins maximise the management of the solar energy passing through the facade. Operational control of the external venetian blinds optimise the benefits for both the building and the occupants. Horiso have manufactured external venetian blinds for recent major projects including No 1 Bligh Street, Sydney. The external venetian blinds were carefully designed and manufactured to be successfully installed in the elliptical architectural design of the building.

Horiso Specialty Venetian Blinds can be automately operated using Climate Ready® Control Systems.

External venetian blinds in a double skin facade and the stack effect

During winter, the vents incorporated in the double skin facade remain closed and the external venetian blinds open to allow solar energy to enter the void. The warm air is captured between the two surfaces, aiding internal warmth. In summer, the external venetian blinds can remain closed or partially closed, while the vents open to allow built up warm air 
to escape, while being replaced with cooler air via the stack effect. See the No 1 Bligh Street case study for further information.

External venetian blinds in double skin facades main features

  • In summer, blinds remain partially or fully closed, absorbing and reflecting solar energy to shield the interior from solar gain. Vents at the top and bottom of the void (or on each floor) then open, allowing warm air to be continually replaced with cooler air via the stack effect.
  • In winter, blinds remain mostly open and are operated to maximise passive solar heating, except as needed for glare control. Facade vents remain closed, creating a thermal barrier of warmer air in the void.

External venetian blinds in double skin facades main benefits

  • Building energy requirements are lower for heating and cooling.
  • Long-term financial savings.
  • Provides significantly higher levels of environmental control.
  • Controls glare and solar gain effectively.
  • A five year warranty applies to all components, including operating mechanisms and controls.


Venetian Blinds
in double skin facades

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