Method and device for producing coated, and in particular painted, building boards and associated painted building board

A method for producing coated building boards for the interior finishing of buildings, with the following process steps:

• 1.1) the respective building board is provided on its longitudinal edges and/or transverse edges with a bevel;
• 1.2) the respective building board is transferred onto a rubber-like conveyor belt having a certain elasticity such that when pressed against the respective building board, a surface of the conveyor belt assumes a shape of the respective building board against which the surface of the conveyor belt is pressed, in such a way that the edges respectively provided with the bevels of the respective building board are arranged transversely in relation to the conveying direction of the conveyor belt and the bevels are arranged adjacent to a visible side of the building board and facing away from the conveyor belt;
• 1.3) a coating material is applied to the visible side of the building board and respective bevel areas of the bevels in one operation with the aid of at least one roller having an elasticity substantially equal to the elasticity of the conveyor belt, such that when pressed against the building board, a surface of the at least one roller assumes a shape of the bevels against which the at least one roller is pressed, wherein the at least one roller is arranged above the conveyor belt and rotating essentially transversely in relation to the conveying direction.