What is a common method for enhancing natural ventilation in a building?

Enhancing natural ventilation in a building is primarily achieved by facilitating the flow of outdoor air into the interior spaces. Opening windows and doors allows fresh air to enter and enables stale air to exit, creating a cross-ventilation effect which improves air quality and comfort within the space. This method takes advantage of natural wind currents and temperature differences, helping to maintain a desirable indoor environment without relying on mechanical systems.

Other methods mentioned, such as installing air conditioning units, focus on cooling and conditioning the air rather than enhancing natural ventilation. Using exhaust fans serves a purpose in removing hot or stale air but does not promote incoming fresh air through natural means. Sealing cracks and gaps can help prevent air leaks, but it also limits the natural flow of air, which is contrary to enhancing ventilation. Thus, the most effective method for harnessing natural ventilation remains opening windows and doors.