Bastion Roof Vent

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The Bastion 300mm is another Bunnings Whirlybird vent. Like Brutus, Bastion is not a very widely known brand name, although the vent does feature a quality construction.

The 300mm throat size makes this vent equally suitable for domestic and modest industrial uses. Although it doesn’t offer a heavy-duty performance, it is effective in ventilating roof space from 90m² to 120m². Bastion 300mm operates year-round and runs entirely on wind energy.

In summers, it reduces the load on your air-conditioning system by ventilating indoors and keeping temperatures low. In winters, it removes moisture-laden air from the ceiling space to prevent snow reforming and mitigates the need for heating the interiors. As a result, Bastion 300mm is very effective in helping bring down your energy costs year-round.

The ventilator has a sturdy aluminium make. This means that it can effectively withstand high wind speeds, rain and other weather conditions. It is also rain-proof, so you don’t have to worry about rain seeping through the vent space.

Bastion 300mm has a mill finish which gives it a classic look. The immaculate finish makes it equally suitable for more modern roofs. The ventilator is quite light-weight, so you can easily lift it and install it on a rooftop.