Natural Ventilation Solutions

Natural ventilation, unlike mechanical fan ventilation, simply uses the natural pressure differential force of air movement, wind and buoyancy to deliver a steady supply of fresh air for building ventilation and cooling.

Natural Ventilation Solutions

Mistrale 75

The Mistrale 75 is a medium format natural ventilation inlet that has been specifically designed to fit in to both  curtain walls, masonry and windows.

A typical Mistrale 75 cassette comprises of a Class 'A' 50 or 75mm pitch external weather proof louvre and an insulated air volume damper to control the air movement  Additional components such as silencers, heating/cooling coils, internal fascia grilles and mounting/housing sleeves can also be added

 Mistrale 75

Its slimline design and low weight level allow the unit to comfortably bead into a window aperture. The cassette comes complete with either a glazing bead to allow fitting into standard window frame or border flanges for convenient wall installation.

Key Performance Features

U Value: 0.96 Watts/m2/K

Leakage: less than 5m3 per hour per sq/m

Weather Rating: Up to Class A

Size Range: 200x225 up to 2000x1050

Mistrale 75

Multiple units to support large screen or continuous run louvres are also available

Mistrale 75 is designed to provide smooth, accurate and stable airflow. The volume control damper is a new and unique design that offers extremely low leakage (when closed) as well as a very low u value. Configured using insulating UPVC extrusions with integral air gaps, cold bridge effects and heat transfer are dramatically reduced creating a unit with an extremely low U value.

The system works automatically with the damper typically actuator driven in accordance with a demand signal from the building controls. Total integration into the building control strategy is also possible either using Gilberts own control system or a full building management suite.

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