Asphalt represents a significant investment on the part of contractors and manufacturers. Beyond equipment and infrastructure, the attachment to asphalt is almost emotional because it has served its calling so well and done it with such longevity. Its versatility and dominance may be unmatched in the roofing business. From self-adhered underlayments to mineral surfaced cap sheets, asphalt can be found in just about any layer of a roofing system, and companies continue to spread the word about its benefits.