User behaviour regarding natural ventilation - state of the art and research needs

This paper gives an overview of user behaviour regarding opening windows for natural ventilation and the methods to model this behaviour as input for building simulation. Influencing factors are summarized and evaluated. Temperature conditions are the most significant influences but most models base only on measurements in office buildings. Residential buildings are not well represented so far. Mathematical methods, which already have been used for this purpose, are mentioned and their ability for modelling user behaviour will be discussed. It is shown that all models applied so far are somewhat limited. A possible new method to overcome existing methods will be proposed.