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

V14

Systems to check before closing the work

V14 connects envelope, air, fire, structure, water and code instead of treating each project in isolation.

Renovation dependenciesLoad-bearing walls and openingsCode versions

V28

Finish and service details to verify

V28 connects small details that become costly once finishes are closed.

Outdoor faucet: freeze and backflow protection

V29

Household safety and compliance details

V29 connects smaller risks that often fall between finishes, appliances, plumbing and local code.

Outdoor receptacle: GFCI and weather protection