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Timber Thermal History (10-Minute Fire Front Pass)
Auto-ignition boundary: 300°C
Heat Shield & Environmental Parameters
Foil Reflectivity / Emissivity
95.0%
High reflectance (>90%) reflects incoming IR photons back to surroundings.
Dead-Air Boundary Clearance
25 mm
Trapped air layer drastically reduces conductive heat flow into timber.
Peak Wildfire Radiant Flux
80 kW/m²
Crown fire radiation (typical crown fire: 60-120 kW/m²).
Structural Timber Species
Key Physics: Radiant heat transfer ($Q \propto T^4$) dominates wildfire structure ignition. Aluminized foil reflects up to 95% of radiant photons, while air gap clearance creates dead-air insulation.
Thermal Resistance Telemetry
Peak Timber Temp
25.0 °C
Heat Flux Absorbed
4.0 kW/m²
Ignition Margin
+275.0 °C
Foil Surface Temp
25.0 °C