Roof Ventilation
Gosnells

Whirlybird Installation in Gosnells, Perth

Dave works right across Gosnells and the wider City of Gosnells. The suburb sits about 20km south-east of the Perth CBD — close enough that travel is always included in the quoted price, same as everywhere else in the metro.

19km inland puts Gosnells at the far edge of the sea breeze's reach. Hot, still afternoons are the norm through summer here, and that is precisely the condition wind-driven whirlybirds handle worst.

Housing through Gosnells is dominated by 1980s brick and tile. Floor plans grew through the eighties and roof pitches came up slightly with them, so cavity volume per square metre is higher than on a fifties home of the same footprint. Three to four units is the usual landing point.

Where these houses catch people out is eave venting that looks adequate and is not. It is worth an actual look rather than an assumption, because it changes what the extraction can achieve.

Far inland — light, late breeze

Whirlybirds or Solar Vents in Gosnells?

Solar, in most cases. Gosnells sits far enough inland that wind is the least reliable thing you could power a roof vent with, and hot still afternoons are the norm rather than the exception through summer.

A solar unit sidesteps the problem entirely — it runs on the thing Gosnells has in abundance. From $750 installed, no wiring, no electrician, and no running cost, and it is working hardest at the hottest point of the day.

If the budget only stretches to turbines, they are still better than an unventilated roof — but you should go in knowing they will be doing less here than the same units would in Scarborough. Dave would rather tell you that upfront than have you disappointed in February.