The psychology of 90 days: a space you can live in
Ceiling height, lighting scenarios, private zones: designing an underground space that doesn’t press down on you.
BLOG
Engineering journal
We write about what we know hands-on: geology, monolithic concrete, filter-ventilation, autonomous systems and building codes. No panic, no marketing fairy tales.
Smart home underground: monitoring and automation
CO₂, water level and voltage sensors, “storm” and “silence” scenarios: what we automate in shelters.
The airlock: why the door is the most critical unit
Airtight doors, overpressure and the locking sequence — a look at the unit that holds everything together.
Questions about your plot?
An engineer will answer to the point: geology, budget, timeline.