Natural ventilation satisfies a primary objective when it comes to bioclimatic designs: reducing demand in air conditioning thus limiting energy consumption required to power installations, particularly in warm weather.
In fact, natural ventilation enables a building's overnight cooling. Once the sources of pollution have been reduced and the hot and fouled air evacuated from the building, overnight cooling enhances the occupants’ respiratory, olfactory and thermal comfort.
Overnight cooling takes place when occupants are not present. This is why only an automated system, via timer settings, can ensure that windows are opened and closed reaching the maximum performance level expected from the building.