Air circulation in Canadian homes
How air moves naturally through living spaces without mechanical equipment — practical guidance for Canadian climate conditions.
Basic principles
How natural ventilation works
Natural ventilation relies on simple physical processes: pressure differences, thermal convection, and wind effects. These mechanisms allow indoor air to be renewed without additional energy consumption.
Cross-ventilation
Opening two windows on opposite sides creates a cross-breeze through the room. By orienting openings perpendicular to the prevailing wind direction, you can maximize airflow through living spaces.
Stack effect
Warm air naturally rises toward the top of a building. By creating low openings for fresh air intake and high openings for exhaust, you can harness this convection phenomenon.
Winter thermal comfort
In Canada, natural ventilation must account for harsh winters. Brief, intensive airing — rather than prolonged ventilation — renews indoor air without excessive heat loss from walls and stored thermal mass.
Articles
Natural ventilation resources
Detailed content on ventilation techniques, Canadian climate considerations, and practical approaches to improving indoor air quality.
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