Whirlybirds – Part of a Healthy Roof

Building a comfortable home is not just about constructing the walls, dividing the rooms, painting, and putting up the roof. You may have a perfect and attractive house or home, but it may lack the required comfort due to unregulated temperatures that come from the lack of a proper ventilation system. However, that might not be your fault because you may not have the information about the significance of the roof ventilation system. Or even if you did, you may not know which ones exist or those that are appropriate for the needs of your home. Well, be informed that the roof ventilation system is a crucial aspect of having a comfortable home or house where you can live without having to worry about the hotness or coldness of the temperatures. This article is going to help you in knowing all about the roof ventilation system and help you to choose the best appropriate whirlybird, the wind-driven vent that is available in Australia for your home and house. To do this, you are going to understand the types of roof vents that are available on the Australian market and how to calculate how many you may need. Finally, you are going to understand the benefits of having roof vent systems in your home and the way through which they prolong the life of your roofing system.

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Fresh air is what every home desires to stay in a conducive environment. Whirlybirds, which are cylindrical is driven by wind and spins, creating a vacuum in a roof cavity, thereby sucking up the warm air and expelling it to the atmosphere. For every home in Australia, the installation of whirlybirds are better as they are very cheap and easy to install. There is also a chance for the apartments to install ample ventilation for their homes. During the installation of whirlybirds, there is a need to ensure that there is enough ceiling that allows air replaced. Choosing the best whirlybird is the key to proper ventilation during the summer season in Sydney, New South Wales.

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Types of roof available on the Australian market

 Australian weather keeps on changing, and more so in the summertime, it is challenging to stay inside the house due to the high heat and humidity. Every home has had bad weather conditions during this period. Different homes have adopted different means available here in Australia, depending on their level of income. There are various roofing styles as discussed below;

Curved roofs –This is a type of roof that has a soft and round appearance that is very appealing in most coastal regions in Australia. It is very thick, thus very long-lasting and preferred by many as it does not wear out easily. The problem with it is that it is very expensive hence not affordable by most low-income earners.Hipped roofs- This is a type of roof that is conducive to any weather condition in Australia. They are most preferred for the protection of the house since they are adaptive to any season, be it summer or winter.Gabled roofs- A triangular form resembles them.

They represent the traditional form of roofing and are very stylish and spacious, thus recommended by most homeowners in Australia. They make the home look beautiful, thereby attracting most new residents in Australia. Most houses that have high market value are built using this type of roof.Flat roofs- This type of roofing is very cheap and easily affordable by most low-income earners in Australia. It reduces the size of the roof, which eventually reduces the cost of its installation. It is made from metal, and locals in Australia own most of the apartments made of this type of roofing.Skillion roofs- This is also an economical method of roofing in Australia. It has a high pitch that is all pitched, thereby reducing costs. They also offer a unique style for your house and make it look prettier though it is not recommended during summertime.

 After understanding the available roofs in Australia, you need to know the most suitable for your home and the one that will be good for any weather. Before making a decision, you need to consider the following to come up with the best solution for your house.

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Consideration before selecting the roof

Cost of the roof- This is the amount you need to purchase your roof. You need to set a budget that you can afford so that roofing your house doesn’t cost you much of your savings. With a budget, you can get a quality and more so affordable roofs.Weather – Since the weather keeps on changing in Australia, you need to consider all weather conditions before deciding on your roofing. All type of roofing has an area where they suit best hence you need to choose those that meet your location standards.Style and design- All types of roofing have different styles. Those that are traditional and also the modern ones. You need to make a decision on which roofing is best for your home. Some roofing such as gabled is very stylish hence good for your house.

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Types of roof vents available on the Australian market

After identifying the roofs available in Australia, here are the roof vents that are most common in Australia.

Box vents- In box vent, there are no moving parts; thus, it provides a route for the trapped air from the ceiling or the roof to escape. There are two types of box vent, i.e., metal and plastic. It all depends on you to choose what best suits your house. For installation, you need to only cut a suitable location on the roof to place your vent.

To increase the effectiveness of the box, you need to install multiples close to the roof ridge since it is where most air is released. For every 300 square feet of your space, you will need to purchase 2 square foot of box vent to cover your house.Wind-driven whirlybird roof – This is type vents that are dependent on the wind since they have no motor to drive them. Whirlybirds have turbines that move faster when it is windy. When there is no weed, their performance is deficient. They are most common in Australia since they are very cheap to install and use.

They also don’t have any running cost enabling all Australian to purchase high-quality wind-driven vent. It works in a way that, when the wind spins the turbines, the hot air in the roof is drawn and then released to the atmosphere. It is the most recommended vents in Australia. During the installation of this type of vent, you need at least one square foot of ventilation for each three hundred square feet of the attic (roof void) space (roof void).Cupola vents- They are vents that resemble static roof vents. They make the house look beautiful since they are very decorative. They are installed on top of the roof ridge, thereby allowing hot air to escape to the atmosphere.

It is not recommended to use it alone as they usually act as a helper for other vents. In installing this type of vent, you need at least 1.25 inches of cupola for every one foot of your building.Soffit vents- They operate in a manner that helps other ventilation systems to take air from the rooms. Soffit vents also help to increase fresh air in the room. For soffit vents, you need at least one square foot of ventilation to cover 150 square feet of attic (roof void) space.Ridge vents- They are vents that have no moving parts; hence are static vents. They are very long and installed on top of the roof.

They take up an entire space, and if they are not, the house roofing looks incomplete. Their primary purpose is to create balance on the roof so that air in the room does not become too hot or even cold. This type of vent does not create a vacuum in the roof like other types of a vent. In every 300 square feet of enclosed attic (roof void) space, you need 1 square foot of ventilation to cover your house.Power vent – This is the type of vent installed on the roof and have motors hence requires to be powered so that they can function. They are suitable for house owners as adjusted according to the weather condition in the area.

They come in various colors to match the owner’s roofing color. They are very efficient in ensuring good air circulation within the room. This type of vent requires maintenance to ensure that they are in good working condition. Also, their running cost is very high; hence it’s costly for the homeowners. For every 1 square foot of attic (roof void), there is ventilation for every 150 square feet of attic (roof void) floor space.Exhaust vents- They are vents that allow air from the attic (roof void) to escape through installed ventilation systems. Its main purpose is to ensure that there is air balance in the air intake and the air leaving through exhaust fans. To install exhaust vents, you need 300 square feet for every 2 square feet of ventilation.

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Why should you consider the whirlybird (wind-driven roof vent) for your home?

A whirlybird is a dome-shaped in the shape of a cylinder that spins in the wind and therefore creating a vacuum that extracts the warm air from the cavity of the room.

Whirlybirds are considered and popular for the following reasons.

They are cheapThey are also easy to installThey require little or no maintenance.

For these reasons, whirlybirds are budget-friendly and, therefore, effective for you due to the added advantage of the ease of installation. They operate from the availability of the wind and, therefore, does not require any other sources of energy that might add additional costs to you.

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Benefits of having roof vents

Roof vents play an essential and crucial role in air conditioning, and more so, it prolongs the lifespan of the roof by reducing the heat. Installing a roof is much more than just putting the shingles on but also involves the application of the roof ventilation aspect due to a variety of reasons.

The heat on your roof may get trapped inside the attic (roof void), especially during the summer season, which makes the attic (roof void) feel as if it were an oven, heating the rest of your house and making it feel very uncomfortable. When the attic (roof void) heat seeps into your house or home, it makes the room too to be less comfortable, which in turn causes the air conditioning system to run all time-nonstop. Proper ventilation breaks this cycle and removes the accumulated heat to make your home more comfortable and cool to live in. Besides these significances, roof vents have some more advantages. These are some of the common benefits of roof vents that are important for your knowledge.

The efficiency of the available energy increased since the temperature of the attic (roof void) is lowered. It means that hot air is not permitted into your home and therefore ensuring an efficient and regulated amount of energy. Roof vents also keep ensuring that the air conditioner does not keep running for long and often, which in turn reduces the costs and ensures that the air conditioning system lasts longer in an effective manner without frequent failures. They help to keep each room of the house at a similar temperature so that you do not have to turn up the cooling and heating systems to regulate the temperatures of particular rooms.

Proper roof vents also preserve the insulation through prevention o ripples form the condensation that may be caused by vapors trapped form the different home appliances. Proper roof vents that are well placed also prevents the damage of your house’s wood framing by preventing the trapped moisture that can come into contact and damage the wood frames of your home. During cold seasons, the roof vents play a crucial and vital role in maintaining a cold roof system through a mixture of the cool outside air with the attic (roof void) air that allows less melting of the snow on the roof of your house. This, in turn, helps to avoid the damaging of the ice damming. During hotter seasons, on the other hand, proper roof ventilation expels the hot air to maintain cool temperatures. Vents, therefore, plays a significant role, regardless of the given climatic conditions.

Prolongs the life of your roof

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May Your Roof Live Longer

The other common advantage of the roof vents is that it helps to extend the lifespan of the roof, and maintains it in good condition throughout this lifetime. It works in a way that the ventilation saves your shingles and therefore extending the life of the roof, whether original or replaced.

It is common to see icicles building up on the edges of the roof and gutters of your house. This build-up is referred to as Ice damming. It may have significant damage to your roof and the edges of your roof. This might be hard for you to notice because it is a gradual process that takes time, and by the time you start to notice, your roof might be damaged already. Ice damming happens when the heat from the inside of your attic (roof void) mixes up with the heat from the sun and melts the snow or ice on your roof, warm roof. The resulting water runs to the edge of your roof and begins to freeze again at that point, which builds up at the edge of the roof. This can back up underneath or behind the roofing materials, which can cause damage to the whole roofing system, the attic (roof void), and even the walls of the house.

Proper roof vents come in to help the warm air escape before it gets a chance to melt the ice and snow on your roofing system. A well-ventilated roofing system is straightforward to observe in the winter season. You still observe the snow on the roof, but there is not an icicle any is in sight.

The ventilation is a benefit to the roof also in the hotter summer seasons. When the temperatures in the outside rise, the temperature of your roof is nearly double the outside temperatures. The hotter roof over an attic (roof void) that is poorly vented translates to a sweltering attic (roof void) because the unventilated and poorly ventilated attic (roof void)s do not have an escape route for the accumulated heat that may build up. This damages the shingles from both the inside and out, which in turn damages the roofing system of the house and eventually reduces its lifespan. Thus making you replace or repair it often-all this costs money and other resources and denies you the comfort you need while at your home or house.

A proper roof vent allows the hot air to escape and therefore keeps your shingles and roof safe from the stated damages and keeps the attic (roof void) cooler. That is how a proper roof vent helps to prolong the life of your roof, both in the cold winter and hot summer seasons.


 A proper roof ventilation system is therefore appropriate and vital towards maintaining a cool and comfortable environment for you to live in. Furthermore, you have clearly understood its significance in extending the lifespan of your roof and keeping it in good condition. Based on your understanding and needs of your house, you can now be able to choose the best whirlybird roof vents for your need and enjoy the privileges of the whirlybird ventilation system of affordability and ease of installation.


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