Roof Cavity Ventilation
Unpowered Whirligig
The simplest and most cost-effective way of dissipating heat from the roof cavity is the installation of a wind-powered whirligig. These simple fans effectively and consistently suck heat from a roof space.
Powered Ventilation
The more effective method of removing heat from a roof space is via electric powered fans, which actively suck air from the cavity and exhaust it out via a whirligig. Able to be operated via timer or thermostat, these fans are ideal ways to maintain a healthy roof cavity space.
Solar-Powered Ventilation
These Australian-made low-profile solar powered vents have the same capacity as the electrically-powered ventilation fans though run off their own small solar panel, reducing greenhouse gases and electrical costs.
Why should you invest in roof ventilation?
A well ventilated roof helps to maintain a healthy climate throughout the rest of the home. This is particularly evident in Summer when the temperature inside the roof cavity can reach up to 70 degrees Celsius. The heat radiates through the house until someone decides to turn up the air conditioner. This might bring the temperature down but it sends the energy costs soaring. Cooling the roof using ventilation keeps the rest of the home cool and reduces the load on the air conditioner.
Ventilation also combats the build up of moisture and prevents mould growth. Moisture can build up in the roof cavity in a few ways. In Winter, warm air might cause condensation when it rises and gets trapped in the roof. It might also come through an exhaust system somewhere in the house. If you currently have an exhaust fan from the bathroom or kitchen pushing moist air into the ceiling, you need to consider your ventilation requirements.