What is one characteristic feature of the granulated topcoat on roll roofing?

The granulated topcoat on roll roofing is specifically designed to reflect sunlight. This feature is significant for a couple of reasons. First, reflecting sunlight helps to manage building temperatures, reducing the heat absorbed by the roof. This can lead to decreased cooling costs in warm climates and contributes to overall energy efficiency. Second, the granules also provide a level of protection against UV radiation, which can degrade roofing materials over time. By reflecting sunlight, the granulated surface extends the lifespan of the roofing material, making it a valuable characteristic in roofing design and maintenance.