What additional feature does roll roofing have to protect against ultraviolet radiation?

Roll roofing incorporates a reflective surface to protect against ultraviolet radiation. The reflective surface is designed to minimize heat absorption and to reflect harmful UV rays away from the roof. This feature is particularly important in extending the lifespan of the roofing material, as prolonged exposure to UV radiation can lead to degradation, cracking, and overall reduced durability. By reflecting UV rays, roll roofing helps maintain cooler temperatures within the building, contributing to potential energy savings as well.

In contrast, waterproof coatings, while essential for preventing water infiltration, do not specifically address UV protection. Reinforced seams are designed to enhance the structural integrity and longevity of the roofing system, but they do not directly contribute to UV resistance. An insulating layer primarily serves the purpose of thermal insulation, affecting energy efficiency but not providing significant protection against UV radiation. Hence, the reflective surface feature is crucial for enhancing the resistance of roll roofing to the damaging effects of ultraviolet radiation.