What is the cooling effect of natural ventilation?

The cooling effect of natural ventilation primarily involves the reduction of indoor temperatures through air movement. This phenomenon occurs when fresh outdoor air enters a building and displaces warmer indoor air, thereby promoting a cooling effect. Natural ventilation relies on the principles of buoyancy and wind pressure, utilizing external airflows to enhance comfort without the need for mechanical systems.

When natural ventilation is effectively designed, it can significantly improve thermal comfort by allowing cooler air to flow into the space and pushing out the warmer air, often referred to as cross-ventilation. This process not only helps to regulate indoor temperatures but also improves indoor air quality by facilitating the exchange of stale air with fresh air.

While adding air conditioning, using fans, or installing insulated windows may contribute to indoor climate control, each of those methods represents an artificial or mechanical means of regulating temperature rather than harnessing natural environmental forces like airflow and temperature differentials that characterize natural ventilation. Thus, the most accurate description of the cooling effect derived from this method aligns with the reduction of indoor temperatures through air movement.