Why Install a Whirlybird Ember Guard?
A whirlybird ember guard is one of the simplest and most effective upgrades you can make to improve your home’s bushfire safety. During a bushfire, it’s not the main fire front that destroys most homes — it’s embers. Wind-driven embers can travel kilometres ahead of a fire and enter roof cavities through unprotected roof vents, igniting homes from the inside out.
We registered the design with IP Australia shortly after AS3959 was adopted, with the Whirlybird Ember Guard purpose-built to help protect roof spaces from ember attack while maintaining proper ventilation. Over the past decade, thousands of our guards have been installed across Australia with no reported failures, defects, or material deterioration, demonstrating long-term durability and reliability in Australian conditions.
Designed and proven in Australia — learn the design history of the original Whirlybird Ember Guard.
250mm
250mm Whirlybird Ember Guard
The 250mm whirlybird ember guard is designed to fit into the smaller 250mm whirlybird, that is usually found in smaller homes or sheds.
Whirlybird Ember Guard – 250mm
A 304 stainless steel bushfire ember guard designed to fit 250mm whirlybird roof vents, helping prevent ember entry during bushfires while maintaining ventilation. AS3959 compliant and ideal for improving home safety in bushfire-prone areas.
98 in stock (can be backordered)
300mm
300mm Whirlybird Ember Guard
The 300mm whirlybird is usually fitted to houses, garages and sheds. The 300mm whirlybird ember guard is by far the most purchased product.
Whirlybird Ember Guard – 300mm
A durable 304 stainless steel bushfire ember guard for 300mm whirlybird roof vents that reduces the risk of ember attack during bushfires. AS3959 compliant and built for long-term protection in high bushfire risk environments.
100 in stock (can be backordered)
Jayla H.
“Fantastic item, Perfect fit. Recommend 100% in bushfire zones.”
Scott F.
“A well-designed ember guard that fits perfectly and does exactly what it’s meant to do.”
The Hidden Bushfire Risk: Roof Vents and Whirlybirds
Whirlybird roof vents are designed to improve airflow, but during a bushfire they can become a major vulnerability. Without protection, burning embers can enter the roof space where they lodge in insulation, timbers, or debris and start a fire long after the front has passed.
Installing a whirlybird ember guard provides critical bushfire ember protection by preventing embers from entering while still allowing ventilation to function as intended.
Learn more about how embers can enter roof spaces and how to protect your home in our Bushfire Ember Protection guide.
A Simple, Effective Bushfire Safety Upgrade
A whirlybird ember guard acts as a stainless-steel mesh barrier fitted inside the vent. It is specifically designed to:
- Block airborne embers and burning debris
- Reduce the risk of roof-space ignition
- Maintain airflow and ventilation performance
- Improve overall home bushfire resistance
Ember guards are one of the most cost-effective bushfire safety measures available for existing homes.
Helps Meet Australian Bushfire Standards
Installing ember protection for roof vents is recommended under AS3959 – Construction of buildings in bushfire-prone areas. Even if your home was built before current regulations, adding a whirlybird ember guard is an easy way to upgrade your property’s level of protection and reduce risk.
Ideal for Bushfire-Prone and Rural Areas
If you live in or near bushland, forests, farmland, or coastal scrub, your home is exposed to ember attack. A whirlybird ember guard is particularly important for:
- Rural and regional properties
- Homes in BAL-rated areas
- Off-grid and bushland retreats
- Investment properties and short-stay accommodation
- Homes near bushland parks, even in a metro area
Affordable Protection That Can Save Your Home
A whirlybird ember guard is an inexpensive upgrade that helps to deliver peace of mind. It’s a small addition that plays a big role in protecting your home, family, and investment during bushfire season.
Frequently Asked Questions
Are they AS3959 Compliant?
Yes. Our whirlybird ember guards meet AS3959 requirements for roof ventilation openings. Read full answer →
Are they easy to install?
Yes. Remove the spinner, place the guard on the internal ledge, and reattach the spinner. Read full answer →
What if I buy the wrong size?
No problem. Send it back and we’ll replace it with the correct size. Read full answer →
What size is my whirlybird?
Measure the diameter of the whirlybird “neck”. Most homes use 300mm; smaller sheds use 250mm. Read full answer →
What is it made out of?
Our whirlybird ember guards are made from 304 stainless steel. Read full answer →
Will it block vermin?
Yes! It keeps rats, mice, birds, and other pests out of your roof space, giving your home extra protection. Read full answer →
