How much will this actually cool my house?
Given the variables inherent in house designs, it is impossible to provide precise guidance on what will happen to indoor room temperatures, however we do know that roof space temperatures can rise as high as 70°C, and vents can easily reduce this by 20-30°C, thereby reducing the heat loads on you ceiling insulation and any air conditioning ducts running through the roof space.
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What happens if there is no wind, do they still work?
If the air in the roof is hotter than the ambient air outside, then the vent will allow that air to escape and help reduce the attic temperature.
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Can they be installed on both metal and tiled roofs?
The flashing supplied is suitable for use on both metal and tiled roofs, and the instructions make the different steps clear.
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How many vents do I need?
We recommend that one vent be installed for every 90m2 of roof space. It is also important to remember then to allow the air to be replaced from somewhere, and so we recommend 4 eave vents per roof vent, and ideally one internal ceiling grille, to allow any hot trapped air to escape from inside your home.
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How do rotary ventilators work?
In the first instance they allow hot air to escape from your roof – this is irrespective of prevailing wind. Once there is wind as well, then they help extract the air from your roof space. All of this is based on pressure differentials, either caused by temperature differences, or wind.
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How much do the vents cost to run?
Supavents / TurboBeams / Windmasters cost nothing to run.
The Maestro is controlled by a thermostat, which means it only runs when you need it, keeping running costs on average under $15 per year.
The ecoFAN costs approximately $10 per year.
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Do the vents need to be professionally installed?
Depending on State legislation, all of our domestic range is despatched with detailed installation instructions and can be installed by the average home handy man.
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What if I don’t want lots of vents on my roof?
The maestro is the ideal product for larger homes – it is equivalent to installing 2-3 naturally powered vents.
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Will the vents make my house look like a factory?
The Supavent is a much more aesthetically appealing option if you are concerned, it is much less obvious on the roof. We also suggest that if vents are positioned just below the ridge line on the rear of the house, where possible, they will not be noticeable from the street.
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Are the vents noisy?
Our domestic range all have a bearing system that are designed to be completely silent, each bearing is self-lubricating and requires no maintenance.
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Will I need an electrician to install an ecoFAN or Maestro?
Both products require a standard power point to plug in the transformer, often a power point can be reached within close proximity of the installation, therefore eliminating the need for an electrician. Where no power point is available, an electrician would be required to install one first.
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Supavent – isn’t that made of plastic?
The Supavent is manufactured from Engineering ASA polymers (Acrylonitrile Styrene & Acrylate). It is extremely strong and has been independently tested to withstand wind speeds in excess of 216 km/h.
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