Method for producing a photovoltaic module comprising back-contact cells, said method comprising the steps of: providing a back-contact back-sheet comprising an outer surface facing the air-side of the photovoltaic module and an inner surface opposite said outer face and exposed to the inside of said photovoltaic module, providing a lower encapsulating layer (400, 1000), aligning and applying said lower encapsulating layer (400, 1000) to said inner surface of said back-contact back-sheet, said lower encapsulating layer (400, 1000) comprising a lower surface facing said inner surface of said back-contact back-sheet and an upper surface opposite said lower surface, causing adhesion of one or more predetermined portions of said lower surface of said lower encapsulating layer (400, 1000) to said back-contact back-sheet, each of said one or more predetermined portions of said lower encapsulating layer (400, 1000) adhering to a respective portion of said inner surface of said back-contact back-sheet, each of said one or more predetermined portions having a surface area less than the total surface area of said lower surface of said lower encapsulating layer (400, 1000), applying one or more back-contact photovoltaic cells onto said upper surface of said lower encapsulating layer (400, 1000), said step of causing said adhesion of said one or more predetermined portions of said lower surface of said lower encapsulating layer (400, 1000) being performed after said step of applying said lower encapsulating layer (400, 1000) to said back-contact back-sheet, characterised in that said step of causing said adhesion of said one or more predetermined portions of said lower surface of said lower encapsulating layer (400, 1000) is performed before said step of applying one or more back-contact photovoltaic cells onto said upper surface of said lower encapsulating layer (400, 1000). providing a back-contact back-sheet comprising an outer surface facing the air-side of the photovoltaic module and an inner surface opposite said outer face and exposed to the inside of said photovoltaic module, providing a lower encapsulating layer (400, 1000), aligning and applying said lower encapsulating layer (400, 1000) to said inner surface of said back-contact back-sheet, said lower encapsulating layer (400, 1000) comprising a lower surface facing said inner surface of said back-contact back-sheet and an upper surface opposite said lower surface, causing adhesion of one or more predetermined portions of said lower surface of said lower encapsulating layer (400, 1000) to said back-contact back-sheet, each of said one or more predetermined portions of said lower encapsulating layer (400, 1000) adhering to a respective portion of said inner surface of said back-contact back-sheet, each of said one or more predetermined portions having a surface area less than the total surface area of said lower surface of said lower encapsulating layer (400, 1000), applying one or more back-contact photovoltaic cells onto said upper surface of said lower encapsulating layer (400, 1000), said step of causing said adhesion of said one or more predetermined portions of said lower surface of said lower encapsulating layer (400, 1000) being performed after said step of applying said lower encapsulating layer (400, 1000) to said back-contact back-sheet, characterised in that said step of causing said adhesion of said one or more predetermined portions of said lower surface of said lower encapsulating layer (400, 1000) is performed before said step of applying one or more back-contact photovoltaic cells onto said upper surface of said lower encapsulating layer (400, 1000).