Ventilation
Essential in Quebec's climate.
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Ventilation removes moisture and regulates attic temperature — key to avoiding ice, mould and premature wear.
Pros
- Less condensation and ice
- Longer roof life
- Healthier attic air
- Ideal with insulation
Cons / notes
- Must be balanced (in + out)
- Sometimes tied to other work
- Access depends on roof layout
How it works
- 1Analyse existing airflow
- 2Diagnose weak points
- 3Plan intake and exhaust
- 4Install components
- 5Check flow and finish