1. How does the WINDWORKER work?

A. The WINDWORKER uses aerodynamics and the Bernoulli principle as a venturi to create a suction by having wind pass through the device to suck up hot air, odours etc through a tube fitted into a roof space. Similar functions are in perfume atomisers and hand spray pumps.

2. How much area can the WINDWORKER ventilate?

A. The standard size can adequately ventilate a floor area of up to 140square metres. It is not necessary to calculate a cubic area such as in air conditioning as the WINDWORKER permits an air transfer and replacement process - the higher hotter air is first evacuated allowing cooler, fresher air to replace that which is exhausted through a series of internal vents fitted in a ceiling.

3. I have not got a ceiling space. It is exposed beams or cathedral style.

A. The WINDWORKER can be fitted through the roof cladding into the underneath rooms. A framework may be put under the entry point which would then hold an internal vent or could be left simply as a tube.

4. Will it leak?

A. The design prevents it from leaking even though rain will pass through the WINDWORKER. Other precautions such as a lip on the internal section of the small stump, drainage holes and strategically fitted neoprene washers although not really required, are taken to prevent any moisture caused from condensation or rain deflection.

5. Can I install it myself?

A. Certainly. Each WINDWORKER is provided on a "ready to install" basis. We required some details such as type of roof cladding eg tile, corrugated iron, shingle etc; the EXACT pitch of the roof eg 15degrees; if there is a ridge cap or ridge tile; colour - we will colour match to roof tone or your request. If you need advice on any aspect, please phone, fax or email us.

Opening under Windworker Stump Fitting of Framework Vent inserted in Framework
Opening under Windworker Stump Fitting of Framework Vent inserted in Framework>

Residential Building Requiring Two Windworker Ventilators

6. I have an "L" shaped house. How many do I need?

A. In some instances more than one WINDWORKER may be required because of the shape of the house, it's size, or if part is a normal ceiling and another part is exposed beam or cathedral ceiling. We will assist in discussing this with you.

7. Does it have a warranty?

A. The WINDWORKER has a Two Year Manufacturers Warranty. The product has been on the Australian market since October 1981 without any warranty problem.

8. I live in another country other than Australia, can I get a WINDWORKER?

A. Yes. The WINDWORKER has been exported to other countries both for single orders and for multiples. Freight is usually by air however this depends on how many units are required. Charges are found to be very reasonable. All export orders are in US dollars.

4 Windworkers on a Commercial building

9. It says the WINDWORKER can prevent damage in a hurricane, storm or cyclone. How?

A. As at January 2002, the WINDWORKER has been through 26 cyclones and numerous destructive storms including those with hail without any loss to either the host building or to the product. The WINDWORKER creates an internal suction to relieve built-up pressure from within a structure caused by the (positive) wind forces on the side of the building. A negative pressure occurs within the building that "sucks" the walls etc back towards the wind direction and can build-up to between two to four times the (positive) wind speed pressure. Without a release for this pressure, damage can occur. Experiences of people in such hurricanes and cyclones describe pressure changes such as ears "popping", manholes being "sucked" into ceilings and floor coverings "floating". People in buildings with a WINDWORKER describe a calm like being in a vacuum.

10. How much can a WINDWORKER reduce the temperature in a house?

A. This depends on what the ambient temperature is in the shade around the building. The WINDWORKER creates a suction which pumps the hot air out of a ceiling cavity or attic. For this to be effective this air must be replaced from somewhere. Sometimes it is replaced from air passing up the profile of roof cladding. We recommend internal vents to be fitted in each room. This allows the rooms to be depressurised and the hot air from those rooms passes into the ceiling to replace the hotter air being exhausted from the ceiling cavity. Of course this also has to be replaced and can come from windows etc. It is best applied using POSITIVE ventilation - open the side of the building that the wind is coming from and closing the opposite side. This causes a "cave" effect and all air entering the building is utilised and pumped up through to the ceiling. Temperature measurements show that the same temperature is obtained in the rooms and in the ceiling as the outside ambient level. This can only be lowered by air conditioning.

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