60 страниц. 2011 год. LAP Lambert Academic Publishing In the present scenario the use of passive concepts for heating and cooling the buildings has emerged as an important parameter to look upon. This model explains the effect of occupancy, activities in which the occupants are involved, environmental conditions and the building materials on the comfort level and various methods to minimize the energy involved to achieve the conditions for comfort. As seen, the major factor that influences the cooling load of the building is the Envelope and the ventilation system used. In this paper more emphasis has been given on the cooling load and heat transfer rather than any other parameter. Here it is interesting to note that, the Norms or specification in the form of various codes given by the ECBC (Energy Conservation Building Code) are not equally applicable for climatic conditions of all the regions, that is, it is not applicable for different parts of the world.