Fire Safety & Native Restoration

Structure Fire Resistance

All BioDome designs have exceptional fire resistance:

Gabion stone foundation: Rock in wire mesh — completely non-combustible
Light straw-clay walls: Clay-coated straw chars but doesn’t sustain flame
Living roof: Growing plants hold moisture. Soil absorbs heat without igniting

Optional: Stone Apron for Enhanced Protection

In high-risk fire zones, consider adding a stone apron to the lower portion of walls:

Height: 50-100cm from foundation top
Materials: Local granite, dry-stacked or lime-mortared
Thickness: 10-15cm facing, tied into wall with galvanized wire

Native Forest Restoration

The most effective fire prevention is replacing eucalyptus with native forest. Every eucalyptus you harvest is one less fire ladder. Every native tree you plant is long-term fire insurance.

Dark fire-resistant dome with stone base in mountainous setting — Fire-resistant construction: stone foundation, mineral render, and non-combustible shell

Defensible Space Zones

Zone	Distance	Treatment
Zone 1	0-5m	Zero flammable vegetation. Mineral surface only.
Zone 2	5-30m	Mowed grass, no eucalyptus, maintained fire breaks.
Zone 3	30-100m	Reduced fuel load, maintained access paths.

Earth-sheltered structure with solar panels in mountain landscape with defensible space — Defensible space in practice: cleared perimeter, stone paths, and fire-resistant landscaping

Color-Coded Alert System

Level	Conditions	Actions
GREEN	Wet season, recent rain, 60%+ humidity	Normal operations. Maintain defensible space routinely.
YELLOW	Dry spell, 40-60% humidity, no rain for 3+ weeks	No open flames. Wet defensible space weekly.
ORANGE	High temps (>32°C), low humidity (<30%), fires reported	Wet structure daily. Prepare evacuation.
RED	Extreme danger, fires advancing	Evacuate immediately. Life first, always.