WHY VENTILATE YOUR ROOF SPACE?
Let the Hot Air Out.
A sealed roof cavity traps heat all summer and moisture all winter. The heat pushes down into the house, and the moisture sits in the insulation where it encourages mould and slowly rots the timber around it.
Whirlybirds use wind to draw that air out and pull cooler air in through the eaves. They cost little, need no power, and once they’re in they run on their own.
- No running cost
- Suits tile and metal roofs
- Installed and flashed to stay watertight
THE BENEFITS OF ROOF VENTILATION
Better Airflow. Better Home.
Cooler Roof Space
Trapped hot air gets drawn out instead of radiating into the rooms below.
Less Condensation
Moving air stops damp settling into insulation and roof framing.
Reduces Mould Risk
Drier roof cavities are far less inviting to mould and mildew.
Helps The Air Con
Less heat above the ceiling means less work for your cooling system.
No Power Needed
Wind-driven vents run without electricity and without maintenance.
Protecting Homes. Enhancing Value.
Our Commitment
Most of our work comes from people we’ve done a roof for before, or from their neighbours. That only keeps happening if the job is done right, so we don’t rush the prep, we don’t skimp on materials, and we leave the place tidy when we’re finished.
- Materials chosen to hold up in coastal conditions
- Proper preparation before any work begins
- The same small team on your roof from start to finish
- Site cleaned up before we leave
What the Service Includes
OUR ROOF WHIRLYBIRD INSTALLATION
SERVICE INCLUDES
- Assessment of roof size, pitch and existing ventilation
- Advice on how many units your roof actually needs
- Supply of quality, corrosion-resistant whirlybirds
- Correct positioning for airflow across the roof space
- Neat cut-in and secure fixing to your roof type
- Full flashing and sealing around every unit
- Clean-up and removal of all off-cuts and packaging
WHY CHOOSE SEAL A ROOF?
40+ Years' Experience
Four decades of roofing across the Illawarra, on every roof type in the region.
Local & Family-owned
Based in Bellambi. You deal with the people who'll be on your roof.
Honest Pricing
A clear, upfront quote with no upselling and no surprises at the end.
Coastal-grade Materials
Products chosen to handle salt air, not just look good on day one.
Frequently Asked Questions
It depends on roof area and pitch. A typical home takes two to four; we'll work out the right number when we inspect.
Not when they're flashed and sealed properly. Poor installation is the reason whirlybirds get a bad name.
A quality unit installed correctly is quiet. Noise almost always means a worn or cheap bearing.
Yes. In the cooler months their main job is clearing moisture out of the roof space rather than heat.
Not Sure What Your Roof Needs?
Get a free on-site inspection and an honest, upfront quote, with no obligation.