The motive of undertaking this project “cool roofs technology” discusses the various technical and design considerations as applicable for a composite climate. The primary intent of “cool roof technology” is to reduce the amount of energy (heat) absorbed by a roof surface and maintain the temperature of upper floors in building in summer season. The manual addresses architects, engineers, and other building professionals are responsible for the performance and construction of buildings. The direct and indirect benefits and energy savings potential of cool roofs, its helps to reduce the urban heat island, global warming, local air temperature and creates a more comfortable and healthier environment.