Abstract: The assembly for preparing and/or painting a surface of a structure includes a movable applicator and a mounting device. The movable applicator includes a horizontal rack having a spray array of a plurality of spaced paint tooltips for painting the surface of the structure. The mounting device has an actuatable arm carrying the movable applicator. The mounting device is movable for positioning the actuatable arm adjacent the structure. The actuatable arm is adapted to move the movable actuator in the vertical direction, the horizontal direction, and towards or away from the surface as required to prepare and/or paint the surface. The horizontal rack is pivotably mounted to the actuatable arm and a linear actuator extends between the arm and the rack. A control system can use actuation of the linear actuator to maintain the spray array parallel to the surface of the structure.

Abstract: An assembly for preparing and/or painting large surface areas, such as building walls, includes a mounting device and a movable applicator. The mounting device provides a mechanism for positioning the movable applicator adjacent the wall surface, and allowing the movable applicator to move along the wall surface. The assembly can be mounted to a wall. The assembly preferably uses existing roof anchor points of the wall, for preparing and/or painting a large surface of the wall. In an alternative embodiment, the mounting means can move the movable applicator along the wall surface.