One of the sad things about the fires is some houses survived, and many of those had features that made that much more likely. Like metal roofs and cement rendered walls, fences made of non combustible material where they touch the house, gravel and cleared vegetation around the walls etc. What I don't understand is why so many houses were built with flammable materials like wood or asphalt shingles for roofs and wooden exposed walls, and no effort made to contain flammable debris around the walls. That seems very short sighted in a known wildfire risk area, especially when most houses caught fire due to flying cinders landing on their flammable surfaces. Surely building codes have a role to play here?