A roofing shingle including a lower layer including a headlap and a plurality of tabs extending from the headlap, and an upper layer including one or more fingers, wherein the one or more fingers are disconnected from one another, and wherein each of the one or more fingers is disposed on one tab of the plurality of tabs, wherein a number of the plurality of tabs is different than a number of the one or more fingers. In an embodiment, the lower layer is a lowermost layer of the roofing shingle. In another embodiment, the roofing shingle further includes an alignment feature disposed in an exposure zone of the roofing shingle, wherein the alignment features is adapted to permit alignment of adjacent roofing shingles during installation on a roof.

A roofing shingle including a lower layer including a headlap and a plurality of tabs extending from the headlap, and an upper layer including one or more fingers, wherein the one or more fingers are disconnected from one another, and wherein each of the one or more fingers is disposed on one tab of the plurality of tabs, wherein a number of the plurality of tabs is different than a number of the one or more fingers. In an embodiment, the lower layer is a lowermost layer of the roofing shingle. In another embodiment, the roofing shingle further includes an alignment feature disposed in an exposure zone of the roofing shingle, wherein the alignment features is adapted to permit alignment of adjacent roofing shingles during installation on a roof.

One aspect of the disclosure is roofing shingle including a shim layer having a top surface, a first side edge, and a second side edge positioned opposite the first side edge. The roofing shingle also includes a top shingle layer at least partially laminated to the top surface of the shim layer, where the top shingle layer includes a first side edge offset a sidelap distance from the first side edge of the shim layer such that a side portion of the top surface of the shim layer is exposed, and a second side edge extending beyond the second side edge of the shim layer so as to overlap the second side edge of the shim layer by the sidelap distance.

One aspect of the disclosure is roofing shingle including a shim layer having a top surface, a first side edge, and a second side edge positioned opposite the first side edge. The roofing shingle also includes a top shingle layer at least partially laminated to the top surface of the shim layer, where the top shingle layer includes a first side edge offset a sidelap distance from the first side edge of the shim layer such that a side portion of the top surface of the shim layer is exposed, and a second side edge extending beyond the second side edge of the shim layer so as to overlap the second side edge of the shim layer by the sidelap distance.

A first plurality of roofing shingles installed in a first plurality of rows on a roof deck, and a second plurality of roofing shingles installed in a second plurality of rows. An edge of one of the second roofing shingles in each of the second rows is offset from the edge of another one of the second roofing shingles in another adjacent one of the second rows. An edge of a first photovoltaic shingle is juxtaposed with the edge of a first roofing shingle of the second roofing shingles in a first row of the second rows. The edge of at least another photovoltaic shingle in at least one of another row of the second rows is substantially aligned with the edge of the first photovoltaic shingle. An additional roofing shingle is installed intermediate one of the second roofing shingles and one of the photovoltaic shingles.

A first plurality of roofing shingles installed in a first plurality of rows on a roof deck, and a second plurality of roofing shingles installed in a second plurality of rows. An edge of one of the second roofing shingles in each of the second rows is offset from the edge of another one of the second roofing shingles in another adjacent one of the second rows. An edge of a first photovoltaic shingle is juxtaposed with the edge of a first roofing shingle of the second roofing shingles in a first row of the second rows. The edge of at least another photovoltaic shingle in at least one of another row of the second rows is substantially aligned with the edge of the first photovoltaic shingle. An additional roofing shingle is installed intermediate one of the second roofing shingles and one of the photovoltaic shingles.

A solar shingle having a substrate positioned beneath an upper material layer and at least one photovoltaic cell coupled to the substrate. A first terminal can be electrically coupled to the at least one photovoltaic cell and positioned adjacent to a first sidewall of the solar shingle, and a second terminal can be electrically coupled to the at least one photovoltaic cell and positioned adjacent to a second sidewall of the solar shingle. An upper surface of the upper material layer can have one or more recesses positioned between the first sidewall and the second sidewall and adjacent to the at least one photovoltaic cell. Further, the upper surface can have a variety of imparted surface characteristics, among other aesthetics and coloring, that can provide the solar shingle with outwardly appearance that is at least similar to traditional, non-solar shingles.

A solar shingle having a substrate positioned beneath an upper material layer and at least one photovoltaic cell coupled to the substrate. A first terminal can be electrically coupled to the at least one photovoltaic cell and positioned adjacent to a first sidewall of the solar shingle, and a second terminal can be electrically coupled to the at least one photovoltaic cell and positioned adjacent to a second sidewall of the solar shingle. An upper surface of the upper material layer can have one or more recesses positioned between the first sidewall and the second sidewall and adjacent to the at least one photovoltaic cell. Further, the upper surface can have a variety of imparted surface characteristics, among other aesthetics and coloring, that can provide the solar shingle with outwardly appearance that is at least similar to traditional, non-solar shingles.

A roofing, cladding or siding product which is light weight, easy to install, durable and resistant to environmental wear. The module comprises an underlapping region and an exposed region, wherein the underlapping region is adapted to be at least partially covered by the exposed region of an adjacent module when installed on a building surface. The module also includes a textured surface area on an upper surface of the underlapping region and/or an underside of the exposed region. In use, the textured surface (e.g. made up from a densely packed group of cones, pyramids or cylinders) presents an increased surface area for improved contact with an adhesive. The adhesive, e.g. in strip form, may by located on an aligning part of an adjacent module with the textured surface area.

Building integrated photovoltaic (BIPV) systems provide for solar panel arrays that can be aesthetically pleasing to an observer. BIPV systems can be incorporated as part of roof surfaces as built into the structure of the roof, particularly as photovoltaic modules having the appearance of a plurality of roofing tiles that each have photovoltaic cells. Each photovoltaic module may include a metal backer, photovoltaic cells, and light transmissive top sheets adhered to both the metal backer and the photovoltaic cells. BIPV systems can also include non-photovoltaic modules that appear similar to photovoltaic modules, but do not collect solar energy.