by Drew Costley
In October 2017, wildfires ravaged much of North Bay, the subregion of the San Francisco Bay Area often referred to as “Wine Country.” Over a three-week period, 250 fires burned at least 245,000 acres of land, killed 44 civilians, and destroyed 8,900 buildings.
But there were a handful of homes within range of the fires that didn’t burn down.
On the first night of the fires, a blaze reached the roof of a home in Napa and destroyed everything in the house except its exterior walls.
Later in the month, another fire torched the formerly lush green lawn of a home north of Sonoma and charred a sliding wood door on the home’s exterior, but the home didn’t catch fire.
And flames scorched the exterior walls of another house, located between Napa and Sonoma, but didn’t get inside the house. Two neighboring houses were completely destroyed.
All of these homes had something in common: They were built by architects who insulated the exterior walls of the homes with bales of straw. The California Straw Builders Association (CASBA) cited their resilience during the North Bay Fires in a report that argues that straw bale walls have superior fire resistance to traditional construction materials. CONTINUE READING