Whirlybird Installation
Willetton

Roof Ventilation for Willetton Homes

Roof ventilation for Willetton 6155, about 14km south of the Perth CBD in the City of Canning. Owner-operated, fully insured, and priced up front before anything is booked.

With about 11km between Willetton and the ocean, the afternoon change has lost a good deal of its strength by the time it arrives, and it arrives late. Worth knowing before you decide between wind-driven and powered ventilation.

The roof stock in Willetton is mainly 1970s brick and tile on generous blocks. The 1970s brick-and-tile stock here sits on big blocks with correspondingly large single-storey footprints — a lot of ceiling area under one continuous roof. That is the classic case for three or four whirlybirds rather than two.

The good news is that eaves from this era are usually generous and genuinely vented, so intake air is rarely the bottleneck. Tile flashing is straightforward, and installs go quickly.

Inland — late afternoon breeze

The Honest Recommendation for Willetton

Being straight about it: wind-driven whirlybirds under-deliver in Willetton compared with what they do on the coast. Not uselessly — but the still window through the middle of a hot day is real, and it is the window that matters most.

Where the budget allows, a solar vent is the better tool here. It runs off the sun rather than the wind, which out this way is the far more dependable of the two, and a single unit at $750 often replaces three or four turbines.

Mixing the two is common and works well: one solar vent as the workhorse, a couple of turbines to keep pulling once the afternoon breeze finally shows up. Dave quotes whichever combination actually suits the roof.