In the world history of the traditional, classical and vernacular; buildings are often described as the notion of the "fabric" as a modifier of exterior and interior climates. However, it is important to recognize that buildings serve many purposes- functional, social, symbolic and aesthetic. These functions are interwoven in the design of buildings and in the use and experience of buildings. In the architecture of the Renaissance, the climatic principles were generally overridden by the requirements of proportion, symmetry and the correct use of the Orders.

Several theories may explain external environment, internal environment, people"s responses and the building fabric as interconnected and these four categories interacting in a complex way. The separation of the purposes-functional, social, symbolic and aesthetic can be useful in analysis and the separation of the Climate Building People strand is the structure of this package presented here. At the same time, it would be interesting to note that the ways in which buildings respond to climate and generate thermal comfort is closely related to the other three purposes of the buildings.

A good way to understand Climate - Building interaction is to study examples of building which have been designed and constructed in extreme climates, without the benefit of scientific analysis, professional designers or recorded meteorological data.

The variations in the natural climatic conditions are plotted graphically the form of a sinusoidal curve describing the diurnal pattern of increasing and decreasing temperatures. The diagram below shows an abstraction of the levels of climatic controls possible.

Precisely controlled indoor climate can only be achieved by active or mechanical systems (the straight lines in the diagram above). However, this may not be the aim of the building designer. Passive design can well attenuate the extremities of the climate and sometimes cause desired comfort indoors, with little seasonal or diurnal variations. The passive systems may not provide 100% climatic control, but they substantially reduce the task of the active systems and hence make them more economical.