When it comes to bushfire ember attack a whirlybird with a mesh grill in the bottom of it just won’t do the trick – why? Well it still leaves the whirlybird open to fill up with embers – what difference does that make? – Well do the the equations, 40° Celcius plus days roofspace in excess of 70° Celcius plus whirlybird full of embers = Time Bomb. BUILDERS ARE OPTING OUT FOR $50 WHIRLYBIRDS WITH…
