Abstract: Provided are roofing membranes comprising pressure-sensitive adhesives particularly adapted for use at cold temperature, and methods for using same. In one aspect, the disclosure provides a roofing membrane comprising: a bituminous sheet having a lower bituminous surface and an upper bituminous surface; and a non-bituminous cold-temperature pressure-sensitive adhesive disposed on the lower bituminous surface, the upper bituminous surface, or both, wherein the cold-temperature pressure-sensitive adhesive has an average adhesion of at least 10 lbs/ft (146 N/m) at 2° C. as measured by a two hour T-peel test.

Abstract: An integrated solar roofing system for installation on a roof surface and for converting solar energy into electrical energy. The system comprises a first row of photovoltaic (PV) roofing tiles having a plurality of electrically interconnected PV cells. The roofing tiles comprise a first tab that extends from the tile base and has at least one mounting hole. The first tab exposes a first electrically conductive material on the first side of the first tab. The roofing tiles further comprise a second tab located on the second side of the tile base and having at least one mounting hole extending through the second tab and tile base. The second tab exposes a second electrically conductive material on the second side of the tile base. The first tab of each roofing tile in the first row is at least partially superposed over the second tab of an adjacent roofing tile aligning the mounting holes so that the roofing tiles are in electrical series communication along the first row.