Roof renewal disparities widen the equity gap in residential wildfire protection

Sebastian Reining (), Moritz Wussow, Chad Zanocco and Dirk Neumann
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Sebastian Reining: University of Freiburg
Moritz Wussow: University of Freiburg
Chad Zanocco: Stanford University
Dirk Neumann: University of Freiburg

Nature Communications, 2025, vol. 16, issue 1, 1-13

Abstract: Abstract Wildfires are having disproportionate impacts on U.S. households. Notably, in California, over half of wildfire-destroyed homes (54%) are in low-income areas. We investigate the relationship between social vulnerability and wildfire community preparedness using building permits from 16 counties in California with 2.9 million buildings (2013–2021) and the U.S. government’s designation of disadvantaged communities (DACs), which classifies a census tract as a DAC if it meets a threshold for certain burdens, such as climate, environmental, and socio-economic. Homes located in DACs are 29% more likely to be destroyed by wildfires within 30 years, partly driven by a gap in roof renewals, one of several important home hardening actions. Homes in DACs have 28% fewer roof renewals than non-DACs and post-wildfire, non-DAC homes have more than twice the increase in renewals (+17%) compared to DAC homes (+7%). Our research offers policy insights for narrowing this equity gap in renewals for wildfire-prone areas. We recommend increasing financial support for roof renewals and targeted awareness campaigns for existing programs which are not sufficiently emphasized in wildfire strategies, particularly in DACs.

Date: 2025
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DOI: 10.1038/s41467-024-55705-w

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