A fluid applicator for surfaces combining a spray-gun with dynamically displacable roller-brushes. The angle of a fluid stream exiting the nozzle is allowed to vary with respect to the longitudinal axis of the roller-brushes to more accurately control over-spray, especially with surfaces in close proximity with one another. The roller-brush applicator includes a frame having first and second opposed ends, with a clamp, attached to the first end, for attaching the frame proximate to the nozzle, and a cross-member pivotally mounted to the second end to rotate about a pivot axis. The cross-member preferably includes a pair of spaced-apart roller-brushes, each of which is rotatably mounted to a shaft. The shafts extend parallel to, and are disposed on opposite sides of, the pivot axis. The nozzle defines a flow path extending between the spaced-apart roller-brushes, transverse to the pivot axis.