Energy consumption in the building sector is clearly an important factor in the total energy bill, and it continues to increase. Cooling and heating in buildings are techniques used to condition their environments, research and development of natural methods for this conditioning are assumed to increase the importance in modern building in order to bring about savings in energy. Depletion of the world fossil fuel reserves and price uncertainty has forced many countries to turn to alternative energy sources to meet their needs. Like many other countries, Iraq, despite its oil wealth, must take...