Engineering systems behind every Aegis bunker.

The shell is the foundation of every life-safety guarantee in an Aegis bunker. It is a reinforced concrete monolith — typically 300–450 mm walls and roof slab — cast against engineered formwork with a continuous double rebar cage and waterstop joints at every cold pour.

Above the structural concrete sits a layered waterproofing strategy: a primary bonded membrane in direct contact with the slab, an air-gap drainage composite, and a secondary geotextile-protected sheet against the soil face. Perimeter French drains route groundwater to a sealed sump with redundant pumps.

Earth cover (typically 1.2–3.0 m) provides ballistic, thermal and acoustic mass. The envelope is designed for sustained overpressure events and is independently verified against project-specific loading from soils, hydrostatic pressure, and surface activity above.

Potable water is held in food-grade polyethylene cisterns sized to the household and autonomy target — typically 3,000 to 15,000 litres. Tanks are isolated from sunlight, vented through carbon-filtered breathers, and circulated through a UV maintenance loop to prevent biological growth during long dormancy.

Raw water from a borehole, rainwater catchment, or external delivery passes through a five-stage purification train: sediment filter (5 µm), carbon block, reverse osmosis membrane, UV-C steriliser, and a remineralisation cartridge that restores taste and pH balance.

All flow, pressure, turbidity, TDS and UV-lamp health is logged continuously. The system can run end-to-end on battery power and can be configured with triple redundancy on the purification train for mission-critical deployments.

Sanitation is a closed-loop system designed for long sealed-mode operation. Low-water vacuum-assist fixtures minimise potable consumption and reduce blackwater volume by up to 70% compared with conventional plumbing.

Blackwater is routed through a sealed macerator into a primary holding tank with anaerobic biological treatment. Greywater is separated and passes through a fines filter and biofilm reactor before being recycled to non-potable uses (toilet flush, irrigation) or discharged to a soakaway.

All venting routes through the activated-carbon air column to prevent odour egress in sealed mode. Tank levels, pump cycles and biological process indicators are logged and presented on the central monitoring dashboard.

The knowledge server is a fan-cooled, low-power appliance running quantised open-weight language models entirely on local hardware. It is air-gapped by default — no outbound connectivity is required for any of its core functions — and is accessed from any device on the internal mesh.

Its curated library includes medical response protocols, pharmacology references, repair manuals for every system in the bunker, structural and electrical engineering handbooks, agriculture and food preservation guides, legal and continuity documentation, and a curated long-form library.

The appliance can be upgraded over time. New knowledge packs and fresher model weights are delivered on physical media and applied locally so the system remains fully sovereign. Mirrored storage and faster local inference are available as upgrades.