Additionally, a reflective roof can reduce peak cooling demand by 10 to 15 percent. As a result, building owners may be able to purchase smaller, less expensive HVAC systems. F preventing the sun's heat from transferring into the home or building. The home or building owner may be able to purchase a smaller, less-expensive cooling system. Extended roof life.
Roofs undergo significant expansion and contraction as they heat and cool throughout the day.
Heat absorbed by the roof can also accelerate degradation by ultraviolet rays and water. A reflective roof can reduce the amount of thermal shock that occurs on the roof surface and make the roof last longer.