Maintaining the thermal balance of the body is essential to achieve the optimum body efficiency. Excessive heat makes one tired and sleepy reducing one's alterness and increases the tendency to make the mistakes. A beautiful house built with huge investment may not offer complete comforts, if the factors governing the comfortable indoor climate are ignored. House is probably the single largest investment one makes in ones life. The house therefore must be designed to suit the personal life and habits of a family, it should also provide a comfortable indoor climate. Indoor climate comprises of the air temperature temperature of the surrounding surfaces, air movement, air humidity and quality of air of the indoors. They may be individual differencesin the subjective feeling of the well being in relation to the climatic factors operating, in the surroundings. But certain factors can not be ignored to create a healthy indoor climate. A comfortable atmosphere in a room is a necessary conditions if one has to stay Content and fully alert. One is hardly aware of conditions in a room. so long they-are comfortable, but discomfort becomes noticeable as conditions depart from the normal.
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