Hidden conditions discovered after demolition

Stop, document, define revised scope and price before turning a discovery into an uncontrolled extra.

VERT / GREEN

The discovered condition is photographed before correction.

JAUNE / YELLOW

Rot, old wiring, altered framing or unknown piping can affect several trades.

ROUGE / RED

Hazard, compromised structure or hazardous material: secure and obtain required expertise before resuming.

Checkpoint before proceeding

Extra proposed verbally
Document cause, solution, price/schedule and authorization before non-emergency work. Condition affects structure/safety
Stop locally and define correction before concealment. Emergency needed to protect building
Secure first and document measures precisely. Written decision obtained
Add change to as-built/cost record.

What the professional checks

Professionals define technical impact; contractor prices/documents change; owner authorizes under contract except genuine emergency.

Sources and references

Vérifié / checked: 2026-08-23

Manage the project through closeout

Deconstruction and reuse

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Explore: Systems to check before closing the work

Systems to check before closing the work

This section connects envelope, air, fire, structure, water and code instead of treating each project in isolation.

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Explore: Advanced diagnostics to cross-check

Advanced diagnostics to cross-check

This section connects water, soil, climate, safety, materials and seasonal use to existing projects.

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