Wildfire Building Codes Mandate Fire-Resistant Cladding Broadly
State and municipal wildfire building codes across California, Colorado, and Australia have expanded rapidly since 2023, mandating fire-resistant exterior cladding in newly designated wildland-urban interface zones that previously allowed combustible siding materials without restriction. More than fifteen additional counties adopted wildfire-specific building codes since 2023, each requiring documented fire rating certification before builders can obtain occupancy permits for new construction. Manufacturers offering pre-certified, fire-rated fiber cement systems are capturing specification share fastest, while manufacturers without documented fire testing face growing exclusion from wildfire-zone construction projects entirely across the affected jurisdictions.
Market Impact: Shifts 22 percent of renovation volume








