hardened

But as he studied the evidence — and found Orr’s explanations wanting — his conviction of Orr’s guilt hardened.

Some architects have called for tough new codes that would require new homes in wildfire zones to be "hardened," built of concrete with metal roofs and devoid of any nearby trees and bushes.

But positions hardened as the policy process dragged on and concerns over the lack of detail in the bill mounted.

Yusi said at least one of those homes wasn’t hardened for wildfire, adding to the puzzle of why some homes burned and some didn’t.

“This further complicates an already complicated and hardened market,” Lara said of the fires, in an interview with The Times.