Australia’s hot and humid summers, can pose a potential threat to your roof. A lack of proper roof ventilation can result in heat being held within the roof space. This can cause a number of issues, including drying of existing roof timbers, which will eventually lead to their warping. The best way to combat this is to install multiple Whirlybirds.

A Whirlybird is a popular and cost-effective ventilation system that is the commonly seen on the roofs of homes, factories and warehouses across Australia. 

How does it work?  

A Whirlybird is a cylindrical dome that spins in the wind, creating a vacuum which extracts warm air from the roof cavity. Whirlybirds are popular because they’re cheap, easy to install and require little to no maintenance once installed. But they also tend to be a little noisy but the benefits outweigh the negatives.

It is important to note, Whirlybirds require the wind to be blowing for them to function properly. If there’s no wind, they won’t spin. If you live in an area where there is little or no wind, you might want to consider installing an electric mechanical Whirlybird. It may cost more but will keep your roof and home cooler, saving you money on energy and expensive repairs in the long run.

Do whirlybirds make your house colder in winter?

No, Whirlybirds remove damp air which means they keep houses warmer in winter and reduce power bills. Moisture laden air from inside the home and outside air, can condense and cause dampness. Damp conditions can also cause ceilings to become mildewed. Proper ventilation of the roof space overcomes these problems and helps lower heating costs.

It is recommended a house with 1-2 bedrooms will generally need two whirlybirds. A house with 3-5 bedrooms will need up to four whirlybirds.

 Expert advice

There are many other ventilation options available to cool your roof and home. Our expert staff at A & D Discount Roofing Supplies Loganholme are happy to discuss them with you. Drop by our Chetwynd Street premises or call us on 07 3801 3188 to find out more.