Whirlybirds

Whirlybirds: wind driven roof ventilation

A whirlybird is a turbine on the roof. When the wind turns the head, it draws hot, stale air up and out of the roof space, which keeps the space cooler in summer and drier the rest of the year. There is no motor, no wiring and nothing to run.

The CSR Windmaster 300 mm Colorbond is a steel whirlybird in Colorbond colours, so it can match the roof. It is listed for metal and tile roofs. The Windmaster 300 mm mill is the same turbine in bare metal, a common pick on commercial and industrial roofs where colour does not matter. The Supa Vent wind driven ventilator is another roof turbine, also in a choice of Colorbond colours.

The Ampelite 300 mm fireproof vent mesh is made for the 300 mm Windmaster and Spinaway ventilators.

A whirlybird is an exhaust vent, so it works best with intake low on the roof. Eave vents and over fascia vents let fresh air in to replace what the turbine pulls out. Those are in roof ventilation, along with ridge vents and the Bradford SolarXVENT solar roof vent for still days. Our handbook to roof vents for corrugated metal roofs covers placement on metal roofs.

Whirlybird FAQs

What is a whirlybird?

A wind driven roof ventilator. The turbine head spins in the wind and pulls hot, moist air out of the roof space.

Do whirlybirds need power?

No. The wind does the work, so there is no wiring and no running cost.

Should I choose Colorbond or mill finish?

Colorbond if you want the turbine to match the roof colour. Mill finish if you want plain metal, which is common on sheds and commercial roofs.

Can whirlybirds be delivered interstate?

The Windmaster and Supa Vent ventilators can be couriered Australia-wide at the rate checkout shows. The vent mesh is pickup or Victorian delivery.