Abstract Nomenclature Introduction 1 Thermal Comfort and Occupant Behaviour 1.1 Heat balance comfort model 1.1.1 The limit of the PMV model 1.1.2 Neutral temperature for thermal comfort 1.2 Adaptive thermal comfort theory 1.2.1 The adaptive opportunity 1.2.2 Thermal comfort adaptive models 1.3 Thermal comfort and environmental factors 1.3.1 Comfort threshold in hot and humid climates 1.3.2 The effect of humidity on thermal comfort 1.3.3 The effect of air flow speed on thermal comfort 1.3.4 Bioclimatic design method for building design 2 Methodology for Field Measurement 2.1 Methods and apparatus 2.1.1 Air temperature and relative humidity measurement 2.1.2 Air flow speed measurement 2.1.3 Occupant thermal comfort survey 2.1.4 Occupant window control monitoring 2.2 Description of office buildings 2.3 Local climate 3 Environmental Factors 3.1 Indoor temperature and relative humidity 3.1.1 Office Building A 3.1.2 Office Building B 3.1.3 Office Building C 3.1.4 Office Building D 3.2 Discussion and conclusions 4 Occupants'Perception 4.1 Office Building A 4.1.1 Thermal comfort perceptions in the Office A1 4.1.2 Thermal comfort perceptions in the Office A2 4.2 Office Building B 4.2.1 Thermal comfort perceptions in the Office B1 4.2.2 Thermal comfort perceptions in the Office B2 4.2.3 Thermal comfort perceptions in the Office B3 4.2.4 Thermal comfort perceptions in the Office B4 4.3 Office Building C 4.3.1 Thermal comfort perceptions in the Office C1 4.3.2 Thermal comfort perceptions in the Office C2 4.3.3 Thermal comfort perceptions in the Office C3 4.4 Office Building D 4.4.1 Thermal comfort perceptions in the Office D1 4.4.2 Thermal comfort perceptions in the Office D2 4.4.3 Thermal comfort perceptions in the Office D3 4.5 Discussion and Conclusions 4.5.1 Thermal sensation and humidity sensation vote 4.5.2 Psychrometric chart …… 5 Conclusions References Appendix