NOVELTY - The system comprises a p-doped semiconductor layer (9) provided with a boundary layer or insulating layer (11), and a n-doped semiconductor layer (8). The p-doped semiconductor layer and the n-doped semiconductor layer are introduced into guide elements or semiconductor elements. The n-doped semiconductor layer is deposited on the boundary layer or insulating layer. The semiconductor layers are directly formed on a surface of wall or roof. A composite or multi-layer is applied directly on a substrate or a surface or a roof or wall using an applicator or a nozzle (15).    USE - The system is useful: for coating surfaces of walls and/or roofs; and as a photovoltaic module or a solar generator for generating energy to light (claimed).    ADVANTAGE - The system simply and inexpensively coats the surfaces of the walls and/or roofs with enhanced adhesive strength.    DETAILED DESCRIPTION - The system comprises a p-doped semiconductor layer (9) provided with a boundary layer or insulating layer (11), and a n-doped semiconductor layer (8). The p-doped semiconductor layer and the n-doped semiconductor layer are introduced into guide elements or semiconductor elements. The n-doped semiconductor layer is deposited on the boundary layer or insulating layer. The semiconductor layers are directly formed on a surface of wall or roof. A composite or multi-layer is applied directly on a substrate or a surface or a roof or wall using an applicator or a nozzle (15). A compressed air is applied directly on the surface of the wall or roof using a pressure vessel designed as a collecting container. The n-doped semiconductor layer is a negatively charged, light energy exposed layer. The light energy exposed layer is applied to the p-doped semiconductor layer in a medium or applied directly to the surface of the wall or roof. An adhesive material is provided between the p-doped semiconductor layer and the surface of the wall or roof. The semiconductor layers include a paint composition that is introduced into the guide elements or semiconductor elements and is layer-wisely applied on the surface of the wall or roof. The paint composition is an electrically conductive paint based on a plastic dispersion paint with a binding agent. An INDEPENDENT CLAIM is included for a process for manufacturing and processing a system for coating surfaces of walls and/or roofs.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a collecting container for receiving a coating system.    N-doped semiconductor layer (8)    P-doped semiconductor layer (9)    Boundary layer or insulating layer (11)    Nozzle (15)    Movable wall. (18)