How does the installation of rolled roofing affect the structure below?

The installation of rolled roofing is primarily designed to provide a waterproof barrier for the structure beneath it. Rolled roofing materials are typically made from asphalt and are installed in overlapping layers to effectively shed water and prevent leaks. This characteristic is crucial for protecting the underlying structure from moisture ingress, which can lead to wood rot, mold, and other damages that compromise the integrity of the building.

While other factors like weight and insulation may be considered for roofing materials in general, the main function of rolled roofing is its ability to serve as a dependable barrier to water. This feature is essential for maintaining the long-term durability and performance of the structural components beneath the roofing system.