To paint a ceiling, work continuously around the perimeter of the room, and cut in a three- to four-inch wide area at the corners with a paint brush. Smooth out the cut-in area by lightly brushing the tip of the bristles over the newly painted area to create a feathered edge.
Next, place a loaded roller in the corner of the room, and roll in one direction toward the opposite side of the room, in parallel lines, Do not roll directly over your head; instead roll in a direction toward yourself.
Work quickly and continuously until the entire surface is coated. Do not roll in a "W" or a "V" pattern on the ceiling. Allow the first coat to dry completely before determining whether a second coat is necessary.