Thermal insulation :
- Heat penetrating walls and ceilings.
- Heat that penetrates the windows.
- Heat passing through natural ventilation holes.
The temperature that penetrates the walls and roofs in the summer days by 60% - 70% of the temperature to be displaced by air conditioning. The rest comes from windows and ventilation openings. The percentage of electricity consumed in the summer is estimated to cool the building by about 66% of the total power. Hence the importance of thermal insulation to reduce the consumption of electricity used for air conditioning, in order to reduce the leakage of heat through the walls and ceilings to achieve the appropriate housing and cost reduction.