Improving the energy efficiency of your building is as easy as purchasing cool roofing. As the sun hits other roof materials, most of the ultraviolet rays are soaked up by the roof. The heat passes through the roof into the building below, increasing the workload on the AC units. UV rays from the sun are reflected away from the structure by a cool roof system. This will decrease the temperature of the roof, which decreases the temperature inside the building, reducing your energy costs. Additional information regarding cool roofs is available by calling Keystone General Contracting All Provide Services Karachi, Islamabad, Lahore, Multan, Peshawar, Balochistan, Pakistan.