Natural ventilation, a method by which a building can be ventilated in an inexpensive and environmentally friendly way, is very important for sustainable development as it is based on only on natural air movement. It is well known that indoor air quality inside the building has a great impact on human health and working efficiency. Some studies have reported that the level of air pollution in indoor environments, where people spend about 90% of their life, is often higher than the outdoor environment. These studies also reported that poor indoor air quality causes serious health problems.
Therefore, the application of solutions that provide a suitable air quality in indoor environments is one of the main responsibilities of designers. An effective ventilation plays an important role in creating a good indoor air quality. However, these designs should contain passive methods that provide natural ventilation as much as possible without requiring energy use. Because the negative effects of environmental problems arising from energy use are increasingly felt today.
Natural ventilation is based on the pressure difference between inside and outside the building. Natural air flow is provided between aerodynamic spaces formed on the roof (flaps, labyrinth systems, aerators) and bottom-level facade (door, windows, vents and louvers).