Photovoltaic solar cells in combination with single-ply roofing membranes

Abstract From the Canadian patent

A combination form of flexible roofing material including a reinforced single-ply membrane base for being adhered to the roof substrate. On the base is laminated a structurally flexible layer of solar cells encapsulated and sealed in a flexible intermediate layer of solar radiation transparent plastic protected by a cover layer of weatherproof solar transparent plastic. The roofing is constructed for being manufactured in elongate sheets rolled up for transport to the site and installed by conventional methods including sealing to adjacent sheets of similar single-ply membrane material which may or may not incorporate solar cells. This is continued until the roof covering is complete. …