Party walls: fire, sound and penetrations
Treat a wall between dwellings as a continuous separation: fire, sound, air, structure and services must remain coordinated.
VERT / GREEN = documenter/entretenir · JAUNE / YELLOW = vérifier avant travaux · ROUGE / RED = arrêter le DIY et faire valider.
What the professional checks
- Identify existing fire/acoustic assembly
- Coordinate penetrations, structure and sealing
Official sources
CNRC — Guide illustré Partie 9Checked: 2026-08-22
Related path
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
Screen hazardous materialsKnow when to stop and assess asbestos, lead, vermiculite, mould, silica or radon.Open →Track indoor air qualityLog CO₂, radon, PM2.5, humidity and temperature without turning readings into diagnoses.Open →Prepare the emergency sheetDocument controls, equipment, contacts and critical locations in a printable format.Open →Score home resiliencePrioritize water, outages, fire, climate, health and essential records.Open →Sort observed symptomsConnect a visible sign to plausible causes, urgency and the right professional.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.
V16
Advanced diagnostics to cross-check
V16 connects water, soil, climate, safety, materials and seasonal use to existing projects.
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.