Phronesis-Online

Three Structural Fire Breaks for Homeowners (Prometheus Public Guide)

1. Ember Grate

Replace the first deck board with a 6” metal mesh panel.

• Drops embers away from siding
• Prevents accumulation at wall interface
• Improves drainage and airflow

2. Deck Sprinklers

Before evacuating, place sprinklers on the deck and turn them on.

• Keeps deck above ignition moisture threshold
• Extinguishes embers on contact
• Cools siding and flashing

3. Open Deck Gates

Open all deck gates, especially wooden ones, before evacuation.

• Breaks the combustible railing pathway
• Eliminates heat/ember traps
• Enhances airflow and sprinkler coverage

These three actions provide powerful last-minute structure protection and integrate seamlessly with all County, NFPA, IBHS, and insurer wildfire standards.