One way that businesses in Australia are cutting costs is by using building equipment and designs that passively operate without mechanical interference. If your business is also looking to do that, then this sponsored post tells you how.

Many businesses seek to incorporate sustainable practices as part of their internal governance policies in one way or another. 

Besides reducing emissions and electricity usage, one way that businesses in Australia are cutting costs is by using building equipment and designs that passively operate without mechanical interference. Case in point, zero-energy building ventilation, otherwise known as passive ventilation systems.

The proliferation of this vent type across Australia and much of the world is a testament to the rising focus on following environmentally friendly practices. If you want to ride this trend to play your role in keeping the environment safe while simultaneously cutting costs for your business, then you’re in the right place.

This article will expound on the ways Australian-made ventilation systems are cutting costs and improving air quality for businesses across the country. Let’s jump right into it.

What is zero-energy building ventilation?

Zero-energy building ventilation is a type of passive ventilation system that regulates the flow of air without relying on mechanical equipment. 

Typically, many buildings rely on a complex system of HVAC pipes, ducts, and fans to facilitate air exchange. This system is generally very effective in generating airflow within the building, but it can be costly and consume a ton of energy over time.

In contrast, zero-energy building ventilation keeps air flowing within a building structure, but this time, it can harness airflow generation by using natural forces to move fresh air instead of dedicated HVAC systems.

Zero-energy building ventilation systems are commonly used across a variety of commercial and industrial buildings that uphold sustainability practices. It does so passively across a wide variety of climate conditions, promoting ideal indoor comfort without relying on energy-intensive systems.

Just like a mechanical ventilation system, passive building ventilation promotes a healthier indoor environment by eliminating (or minimising) humidity and heat variability within the premises. It also wards off the build-up of airborne pollutants, helping maintain the health of the people who frequent the premises.

Examples of passive building ventilation systems

Many types of passive building vents can be incorporated in commercial and residential properties. Let’s explore a few of the most popular ones in Australia:

• Louvres: Louvres are a type of architectural feature that allows fresh outdoor air to enter the premises in a controlled manner, usually by way of angled slats. Some louvre types, like Airocle 2 stage louvres, also block out direct sunlight and air, improving the stability of temperature and light indoors.
• Roof vents: Roof vents are openings in a roof that allow air to exit from inside the premises. This vent type helps regulate temperature and moisture levels that may accumulate in the upper regions of the structure, helping keep the entire building cool and less energy-intensive.
• Ridge vents: This vent type is situated at the roof’s peak, allowing the natural process of hot air to escape through the upper reaches of the building. This, just like other natural vent types, helps prevent heat and humidity from accumulating in the upper regions of the building.
• Whirlybirds: This vent type is mounted on the roof and uses the power of the wind to remove hot and stale air from the building. These turbines operate without electricity as they’re generated solely by the wind. This makes it a good passive vent solution for commercial facilities in climates that get windy.

For these passive building vents to work properly, it’s crucial to also have an entryway or opening underneath (or on the ground floor) the building to allow fresh outdoor air to enter. This can come in the form of windows or large doors that aren’t obstructed by walls or large pieces of furniture.

As warm air rises and exits through the roof vents, cooler air is drawn in through the lower openings, creating a continuous cycle that keeps the air in the building properly circulated.

How do passive ventilation systems reduce energy costs?

Passive ventilation systems are excellent not only in keeping the indoor air clean and in good shape, but they also reduce the amount posted in your property’s monthly electricity bill. If you’re wondering how this can be achieved, then read on to learn why this is the case.

• Minimises HVAC usage: It’s not uncommon for building owners to use a combination of passive and mechanical vents to keep air continuously flowing within the property. That said, having a larger concentration of passive vents naturally can lead to a reduced need for HVAC systems. This, in turn, reduces the electricity consumption of the property, leading to lower electricity bills.
• Lowers maintenance costs: Passive vent systems are engineered to operate continuously 24/7 without the need for power. This means that they require fewer moving parts compared to the traditional mechanical vent system. If your property has more passive vent systems than HVAC systems, this will mean you won’t suffer from maintenance and repair work as often as you otherwise would if it were the other way around.
• Extends equipment lifespan: HVAC systems tend to have a lower shelf life than zero-energy building vents. This means you can extract more value with a passive vent, as even repairs and maintenance work cost only a little.
• Deliver long-term savings: Although installation can cost a pretty penny at the start, over the course of many years, this investment will pay off and exceed the value of HVAC systems—granted that it’s treated well.

Passive ventilation systems, as can be seen, are great at reducing costs for most consumers in the long run. But this begs the question: are they just as good as their mechanical counterpart?

The good news is that in many cases, that assumption is the truth. Read on to learn why.

How do passive vents improve indoor quality

Passive vent systems play a crucial role in keeping indoor air from getting stale and unhealthy. It achieves this in a number of ways:

• It promotes continuous airflow: Passive vents allow fresh outdoor air to replace stale indoor air, improving airflow throughout the building without relying on mechanical systems.
• It removes trapped heat and humidity: Passive vents help prevent condensation from forming across many buildings. If left unaddressed, this can compromise the health of vulnerable and sickly people due to the air not being properly made safe for them.
• It removes airborne particles: Another good thing about passive vents is their ability to reduce fumes, odours, and dust within your environment.
• Enhance occupant comfort: We all want our clients and customers to be happy. We also want the workplace to be comfortable and conducive to productivity. Passive vents can make it easier for people to feel less tense whenever they enter your building, making them more likely to come back or stay loyal to your company.
• It doesn’t follow external cooling mechanisms: Usually, when an indoor space gets cold, the A/C unit that powers it becomes hotter. If the bag is old enough, it can also emit harmful emissions, which can cause problems. Passive vents help this by allowing air to continuously cycle without constant supervision.

By combining natural airflow with smart building design, Australian-made ventilation solutions can help create healthier and better commercial spaces outside the local golden route, so to speak. I’d say it’s a good idea to invest in one for yourself.

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