Advocates push for mandatory retrofitting of existing homes in fire zones

For years, fire prevention groups have pushed residents to harden homes in wildfire-prone areas.
With the frequency and severity of such blazes on the rise, people need to replace old vents, roofs and windows with upgrades that protect their home against a whirlwind of heat and embers during a conflagration, they say.
Yet limited incentives exist to spur homeowners to take on the expense of such upgrades.
Now, with the memory of Los Angeles County’s firestorms still fresh, public interest