WhirlyPro installs Australian-made solar roof
ventilators in Sydney. Reduce heat & mould with 700m3/hr airflow. Free quotes. 10-year warranty.
Sydney summers are warm and humid, with daytime temperatures averaging around 26°C and heatwaves regularly pushing past 40°C, especially inland. That heat builds fast in the roof and makes homes uncomfortable. WhirlyPro’s Australian-made solar ventilators pull more than 700m³ of hot air out every hour, keeping Sydney homes cooler and drier on free solar energy.
Sydney’s warm temperate climate combines strong summer sun with high coastal humidity. Daytime temperatures average around the mid-20s°C but spike well past 40°C during heatwaves, particularly in the western suburbs away from the sea breeze. Roof cavities absorb this heat all day and radiate it into living spaces long after sunset.
Humidity is the second issue. Sydney’s damp summers create ideal conditions for condensation inside the roof, and without active airflow that moisture lingers — encouraging mould growth and gradually damaging roof timbers and insulation. This affects everything from inner-city terraces to large freestanding homes across greater Sydney.
WhirlyPro is built for exactly these conditions. Its solar-powered system with a smart thermostat extracts over 700m³ of hot, moist air every hour, even on still, muggy days — keeping homes more comfortable, protecting the roof from moisture damage, and running on renewable energy with zero ongoing costs.
Perfect Environment for Mould
Australian - made & manufactured
Moves over 700m³ of air per hour
Solar-powered, no running costs
10-year warranty
Fits corrugated, Trimdek, tile & terracotta roofs
“Our upstairs bedrooms were unbearably hot during the summer heatwaves. Since installing WhirlyPro, the heat is pulled right out and the air conditioning doesn’t have to work nearly as hard.”
“We had a real issue with trapped humidity and mould in our roof cavity. This solar fan sorted it out immediately and runs completely silent.”
“This active solar fan is vastly superior to our old whirlybirds. It starts up automatically as soon as the sun hits the roof and keeps the ceiling space cool.”
A whirlybird needs wind to spin. WhirlyPro is solar-powered and motorised, actively pulling 700m³ of hot air out per hour even on still days.
No. It runs entirely off its own solar panel — zero added to your power bill.
Yes. It runs on daylight, and the smart thermostat prioritises the hottest, most humid conditions.
No. It's sealed and weather-rated, drawing air out while keeping rain, insects, and debris out.
Depends on roof size and layout — we'll recommend the right number for your home.
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