Define “cool roofing.”

Cool roofing refers to roofing systems designed to reflect more sunlight and absorb less heat than standard roofing materials, making option B the most accurate definition. This is achieved using special reflective coatings or materials that enhance the roof's ability to reflect solar radiation, thereby helping to lower roof temperatures. The benefits of cool roofing are significant, as they can reduce energy costs associated with cooling the building, enhance indoor comfort, and decrease urban heat islands by lowering surrounding air temperatures.

While other choices mention aspects of roofing, such as light colors, recycling materials, and insulation for heat loss, they do not encapsulate the full principle of cool roofing. Specifically, while painting a roof white can contribute to its reflectivity, cool roofing as a concept goes beyond just color, focusing on the performance characteristics that result in reduced heat absorption overall.