Area of use
VentoVind™, designed for cold attics, is a system which provides optimised ventilation thereby
minimising moisture-related problems such as mould and rot. This is achieved by the system's
control unit reading off the climate both outdoors and indoors using sensors, and ensures that the
supply air fan is only activated when the outdoor air has a moisture content lower than the indoor
air. The principle is patented and originally developed at Chalmers University in Gothenburg, where it
was evaluated in practice in several reference installations that were carefully monitored.
VentoVind™ is a proven technology which has been used for several years to solve moisture
problems in attics in an energy-efficient way. A big advantage of VentoVind™ is that the method is
suitable for both large and small cold attic spaces as found in tenement buildings, schools etc., and it
can be installed during and after construction.
A prerequisite for the installation of VentoVind™ is that the attic is thoroughly sealed so that
uncontrolled air exchange towards the surroundings or towards the residence does not occur, but
only through the supply air fan and the dampers that are part of the system. The fan is speed
controlled to always supply the correct level of ventilation, and during operation it creates weak over
pressure in the attic, which prevents humid air from entering the attic space.
To be able to handle even very unfavourable cases VentoVind™ is prepared to be supplemented with
a dehumidifier which is put into operation as required, i.e. only when surrounding air is not able to
lower the humidity.
Properties:
• Energy efficient
• Very quiet
• Flexible
• Service-friendly
• Robust
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