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Glossary Definition

Type V

Type V

The IBC's lowest classification, permitting combustible (typically wood) structural elements; the default for most California single-family homes.

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Type 1A ADU: San Jose's 850-Sq-Ft Fire Safety Breakthrough

Discover how San Jose's first Type 1A ADU brings hospital-grade fire safety to backyard housing — and why ICF construction is reshaping residential resilience.

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ICF Type I ADU: Building Wildfire Defense as a System

Inside LA's first Type I ICF ADU: how Builtech layered non-combustible walls, fire-rated windows, and defensible space into one wildfire-resilient system.