See alarms, flues, appliances, separations and the routes smoke or combustion gases may take.
What this layer reveals
The layer connects visible symptoms to hidden routes through the building. Use it to form better questions, not to claim certainty from a diagram.
How to explore it
- Start with the area where the symptom is strongest.
- Switch layers to see which systems cross that area.
- Open a hotspot to compare causes, checks and repair sequence.
What changes the interpretation
Climate, house age, renovations, weather and operating cycles can all alter the same pathway.
Observe→Distinguish→Control source→Verify
Living dossierPublished knowledge is connected and improved as new cases, images and outcomes are added. Updated 2026-07-20.
