Designing for Wildfire Resilience in the Wildland-Urban Interface
Meet growing Wildland-Urban Interface (WUI) requirements for commercial buildings and custom homes with the DuPont™ ArmorWall™ System, an integrated wall assembly solution engineered to support exterior fire-rated wall assemblies, ignition-resistant construction, continuous insulation, and high-performance building enclosure design
Why WUI Design Matters
The Wildland-Urban Interface (WUI) represents areas where development meets or intermingles with vegetation, creating heightened wildfire exposure risk. As more jurisdictions adopt International Wildland-Urban Interface Code (IWUIC) or similar code requirements, architects and specifiers are increasingly challenged to balance wildfire resilience, code compliance, and overall building performance.
IWUIC Compliance with the DuPont™ ArmorWall™ System
The DuPont™ ArmorWall™ System can support multiple code-compliant approaches for meeting Wildland-Urban Interface (WUI)International Wildland-Urban Interface Code (IWUIC) model structural hardening requirements, depending on the jurisdiction adoption and project design. Available compliance pathways vary by state and local amendments and adoption. As shown below, ArmorWall can help satisfy IWUIC requirements through approaches that may include exterior 1-hour fire-resistance-rated assemblies, ignition-resistant materials, and other approved construction methods.
| Pathway | ArmorWall™ System | IWUIC (CO, NV) | CA | OR | WA |
|---|---|---|---|---|---|
| 1-hour Exterior Fire-Resistance Rated Assemblies | ✓ | ✓ | ✓ | ✓ | ✓ |
| Ignition-Resistant Materials per ASTM E2768 | ✓ | ✓ | ✓ | ✓ | |
| Noncombustible Materials | ✓ | ✓ | ✓ | ✓ | |
| Fire Retardant Treated Wood | ✓ | ✓ | ✓ | ||
| One Layer of 5/8" Type X Gypsum | ✓ | ✓ |
One Panel. Five Functions.
ArmorWall™ System integrates:
✓ Structural Sheathing for direct cladding attachment
✓ Fire Resistance
✓ Continuous Insulation
✓ Air Barrier
✓ Water-Resistive Barrier
Benefits for Design Teams
Verified Fire Performance
Resources
Need Help With a WUI Project?
Connect with a DuPont Building Enclosure Specialist to:
- Navigate code requirements & compliance pathways
- Evaluate assembly options
- Access technical resources for project-specific support