As a general rule, the outdoor air exhaust is typically done through the roof using a special VMC roof vent with a minimum free passage section of 200 cm².
The use of tile sleeve vents is highly discouraged, if not prohibited, as they create excessive resistance to the airflow.
The special VMC roof vent replaces an existing tile or slate and is sealed with a lead sheet for proper waterproofing.
The roof vent should be located no more than 3 meters away from the ventilation exhaust.
In certain cases, the air outlet can be done through the facade or gable end of the building.