ventilation is simply providing ventilation and/or conditioning
through means of natural airflow through building openings. The
obvious benefit of this is energy savings from not using
ventilation and air conditioning equipment such as fans,
chillers and pumps. Building occupants are known to benefit from
natural ventilation through increased energy, better moods and
increased productivity. It is one of the simplest and
inexpensive methods to provide occupants with refreshing outside
air. It is not always as simple as just providing multiple
operable windows in a building. Wind patterns specific to the
site should be considered and can be utilized by locating
fenestration to enhance natural airflow through the building. A
common method is by locating operable windows at a high level
such as in clerestories or openings in a thermal tower as well
as at the occupant level. This serves to naturally cool a space
effectively by exhausting warm air at the high level while
pulling in fresh cooler air at the low level