Abstract: An interchangeable underlayer for a roofing device is provided. The interchangeable underlayer includes a base having a roof engaging first side and a roofing device engaging second side. The first side includes a plurality of protrusions and channels that engage with a surface of a roof. The second side includes a set of protrusions that secure to the roofing device, such as a roofing step that provides a non-sloped surface while working on a roof. In some embodiments, the roofing device includes a top side, a bottom side, and a pair of lateral sidewalls therebetween, wherein the bottom side can receive the set of protrusions of the second side of the base, forming the underlayer of the roofing device. The base is interchangeable with a second base having a differently configured first side to allow the roofing device to be used on a variety of different types of roofs.

Abstract: An interchangeable underlayer for a roofing device is provided. The interchangeable underlayer includes a base having a roof engaging first side and a roofing device engaging second side. The first side includes a plurality of protrusions and channels that engage with a surface of a roof. The second side includes a set of protrusions that secure to the roofing device, such as a roofing step that provides a non-sloped surface while working on a roof. In some embodiments, the roofing device includes a top side, a bottom side, and a pair of lateral sidewalls therebetween, wherein the bottom side can receive the set of protrusions of the second side of the base, forming the underlayer of the roofing device. The base is interchangeable with a second base having a differently configured first side to allow the roofing device to be used on a variety of different types of roofs.