Outdoor air intakes and exhaust terminations

Avoid re-entrainment of odours, moisture, snow and contaminants by coordinating exterior terminations.

VERT / GREEN = entretien/documentation · JAUNE / YELLOW = vérifier avant travaux · ROUGE / RED = arrêter le DIY et faire valider.

Outlet near intake/window
Verify clearances and re-entrainment risk for the system/code. Outlet blocked by snow
Restore a safe termination; do not operate critical equipment while blocked. Exhaust into attic/soffit
Correct to an appropriate exterior termination. Termination map
Map hood, bath, dryer, HRV/ERV and combustion terminals.

What the professional checks

Verify location, snow and contaminants
Coordinate airflow and dampers

Official sources

CNRC — Guide illustré Partie 9

Checked: 2026-08-22

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.

Renovation dependenciesLoad-bearing walls and openingsCode versions

Explore: Finish and service details to verify

Finish and service details to verify

This section connects small details that become costly once finishes are closed.

Outdoor faucet: freeze and backflow protection

Explore: Household safety and compliance details

Household safety and compliance details

This section connects smaller risks that often fall between finishes, appliances, plumbing and local code.

Outdoor receptacle: GFCI and weather protection