Bushfires do not ‘sweep through’ towns. Look at the pictures of houses burning at Roleystone, WA. The trees are untouched. As always, houses burn down from the inside when embers are blown inside.

When no one is at home to put out an ember that has blown inside, a household  item ignites. Fire then spreads through furniture and furnishings,  clothes and kitchen contents, papers and plastics and fly-sprays and cleaning fluids until only ash and twisted metal remain.

Realise which aspect of houses lead most to the most destruction: not the fire front, the embers; not the cladding, the contents!