Windworker Display
Windworker Display

In many parts of the World, hurricanes, cyclones, typhoons and destructive storms cause immeasurable damage to property and suffering to human lives.

The WINDWORKER roof ventilator was invented as an internal pressure release device for buildings in such wind force activity.

The design incorporated aerodynamics and the venturi principle to harness and utilise external wind forces to provide an effective internal exhaust system in structures during cataclysmic conditions to reduce or equalise the ambient pressure gradients and still maintain its integrity.

Windworker display at the 1994 World Trade Fair in Sydney
Windworker display at the 1994 World Trade Fair in Sydney

The concept arose after Cyclone Althea devastated Townsville in North Queensland, Australia on Christmas Day 1971.

During the cyclone, roof cladding appeared to be pushed outwards and to windward before being blown away. This was attributed to the excessive build-up of internal pressure. Without some form of release for this pressure, loss of roof cladding, structural damage and water saturation becomes inevitable.

The WINDWORKER was patented and put on the commercial market in October, 1981.

It maintains a 100% success rate in 26 cyclones to date (mid 1999) around Australia and the Pacific region without loss to either product or building.

Other benefits for consumers include the removal of heat, condensation, odours and potential toxic fumes. Financial savings, energy conservation and quality indoor air are also bonuses.


Destruction caused by cyclone Althea in Townsville Queensland, Australia 25th December, 1971.

Destruction caused by cyclone Althea in Townsville Queensland, Australia 25th December, 1971.
Destruction caused by cyclone Althea in Townsville Queensland, Australia 25th December, 1971.
Destruction caused by cyclone Althea in Townsville Queensland, Australia 25th December, 1971. Destruction caused by cyclone Althea in Townsville Queensland, Australia 25th December, 1971.
Destruction caused by cyclone Althea in Townsville Queensland, Australia 25th December, 1971. Recorded Wind Speeds to 218 KPH.
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