Abstract: A roof machine for the electrostatic paint coating of the front end, roof, and rear surfaces of an automobile chassis, transported on a conveyor belt includes a roof beam equipped with atomizers, the roof beam extending over the conveyor belt. Opposite ends of the roof beam are positioned in two vertical columns, one column containing the drive elements for the roof beam and the atomizers, and the other column containing the paint supply for the atomizers. The roof beam is positioned in the vertical columns that the roof beam can be moved up and down and can be rotated around its longitudinal axis as well, and the atomizers can be moved jointly back and forth and tilted and individually adjusted with respect to their lateral spacing relative to one another. The housing jacket of the roof beam is cylindrical.