commercial industrial roof ventilation australia

What is a Whirlybird Roof Vent? 

Tired of Australian weather and looking for a guide on whirlybird before putting a burden on your wallet? Then, you’re at the right place as we are going to walk you through the important aspects of whirlybird roof vents.

Whirlybird is the turbine vents that are used in home and commercial purposes to remove the heat. The whirlybird roof vent is cylindrical in the shape. If you must know the roof is considered as the hub of heat as it prevents the escape of heat causing the hotness in the house. This can be a good thing in winter while in summer it can be a huge problem. But with the invention of a whirlybird roof vent, most of us sighed in relief. There has been a mention of a whirlybird roof vent invention in The Ultimate Whirlybird Guide. Whirlybird roof vent was invented by Samuel Ewart in 1910. The reason behind inventing this device is to offer comforts even in hot weather.

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Now the question must be popping in your head: why is the Whirlybird roof vent or who invented the whirlybird roof vent? And the answer is quite simple in summers when the sun is on its peak, terrace or rooftops come in direct contact with the heat. Through the terrace, heat penetrates into the house which causes heat in the house. Because of this only, many times, people get heat-related diseases like rashes, itching, and sunburn. Not to forget about the discomfort and discomfort due to this only. To save all of us from the trouble whirlybird roof vent came as a protector.

How did Whirlybird Roof Vent Work?

As we said earlier, the vent of the whirlybird is cylindrical in shape which consists of engineered fins. When the wind enters the turbine, the vent starts rotating which causes the removal of heat from the house. The working of a whirlybird roof vent is similar to the vacuum. Due to the rotatory motion of the fins, the vent is compelled to suck the heat out of the house. The heat gets out of the vent in no time and the temperature becomes normal again. Not just heat it also excludes humidity from the house and keeps the movement of air inside the house natural. The whirlybird vent also protects from rain droplets to enter the house in the rainy season.

How Effective is a Whirlybird Roof Vent?

Now the next question is worth giving a thought such as whether a whirlybird roof vent is effective. So, the only way to test the effectiveness of roof vents is through the airflow capacity. The very first thing before making a purchase is to do thorough research on your surroundings. Whirlybird roof vents depend on certain factors like the manufacturer model and the wind speed. The in-home purposes these ventilators can stand lower airflow capacity up to 12 Kph. The home purpose whirlybird moves at a speed of 8-150 cubic meters. While, on the other hand, the industrial or commercial purposes whirlybird roof vent can operate at a speed of 2,500 to 5,000 cubic meters per hour.

Benefits of Whirlybird Roof Vent?

Well, there are many perks of whirlybird roof vent which we are mentioned below:

  • Proper Airflow Circulation: The whirlybird roof vent offers proper airflow circulation in the house.
  • Works on Wind Speed: There are no extra efforts you have to give for its working. It works naturally depending on the wind speed of your area.
  • Reduce Energy Consumption: The thing which makes whirlybird roof vent popular is it reduces energy consumption as it prefers a natural source for working.

These are all about the perks of whirlybird roof vents but it has some major flaws too like you can’t make most out of the turbine when the wind is not blowing in your area. The second thing which is really annoying is the noise they cause. It requires proper maintenance as if the foreign thing enters the turbine can cause a change in the speed of vent. But there are noiseless whirlybirds that are also available in the market.

So, it is a must to look after its care and maintenance.

Where to Place Whirlybirds on a Rooftop?

The very position to position the whirlybirds roof vents are rooftop. In that position, it works more efficiently. The scientific reason for installing a whirlybird at a rooftop is compelling the hot air and moisture to accumulate upward. Our suggestion is to install or position the whirlybird roof vent at the location where it can’t affect the home decor. Most of the roof vent companies provide satellite imagining before installing. Discuss all the possible installation locations with professionals.

Is it Possible to Repair a Whirlybird?

Yes, you can easily repair a broken or malfunctioned whirlybird. Sometimes the improper working of the vent is due to rust which results in causing extra noise or even causing a disturbance in the spinning process. In such a condition, all you have to do is replace the bearing of the whirlybird roof vent which is available in the market. The good thing about the product is, you don’t have to replace the whole whirlybird roof vent, the bearings can be purchased separately. But before making a purchase, don’t forget to look at the manual or manufacturer’s guide where it has the mention of the bearing used in making the vent or turbine.




There you have it! This is our closure on the Whirlybird roof vent. Compared to any other device, it is cheap and uses a renewable source of energy for working. One can easily install or use it without any technical knowledge. In past years the ventilation system was quite noisy but now the time has changed there are a wide variety of whirlybird roof ventilation available in the market which is way more convenient and efficient. And we know Australian weather can be overwhelming for most of us and we all look out for solutions that work great. Considering this, you can surely give a whirlybird roof vent a chance and let us know what you think about it. And to know more about the benefits and drawbacks of the whirlybird roof vent, you can give Saving Energy Guide a try.

Till then Happy Reading!