VERT / GREEN
If work can be replaced by a flame/spark-free method, prefer hazard elimination.
Hot work, permits and fire watch
Control welding, brazing, cutting, grinding or torch-applied roofing near combustible materials and concealed cavities.
JAUNE / YELLOW
When hot work is necessary, remove/protect combustibles, isolate the area and plan extinguishers and fire watch.
ROUGE / RED
Hot work in cavities, near insulation/wood or a flammable atmosphere requires competent procedure and permits as applicable.
Project triage
What the professional checks
- Establish hot-work program/permit
- Define fire watch and post-work duration based on risk
Official sources
Sources checked: 2026-08-22. Always confirm local rules and the applicable edition.
Related path
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
Plan a complete construction projectConnect feasibility, design, permits, concealed work, commissioning and closeout.Open →Check permit triggersPrepare the questions and documents to confirm with the local authority.Open →Check a contractorDocument licence, insurance, scope, payments, changes and warranties.Open →Update a construction costEscalate a historical cost using comparable index values.Open →Prepare pre-delivery reviewRecord documents, enclosure, systems, finishes and deficiencies before closeout.Open →
Manage the project through closeout
V14
Systems to check before closing the work
V14 connects envelope, air, fire, structure, water and code instead of treating each project in isolation.
V15
Remaining system checks not to miss
V15 covers issues that can block a project, cause a loss or become expensive once concealed.
V17
Specialized systems to cross-check
V17 completes gas, soil, water, fire, climate and structural interfaces.
V32
Post-disaster and legacy systems
V32 connects contamination, storm damage, legacy materials and recommissioning before rebuilding.