Abstract: The present invention is an improved method for applying masking tape, such as but not limited to painter's tape to surface areas wherein a 90 degree angle is encountered, such as window panes, door jambs, and corners of walls, ceilings and floors. The preferred embodiment and all alternative embodiments are comprised of easily accessed segments of material comprised of at least one 90 degree angle and releasable adhesive on part or all of the ventral aspect. The preferred embodiment and two alternative embodiments utilize a tape roll structure with the addition of perforation axes at regular intervals. The preferred embodiment and one alternative embodiment are also comprised of no adhesive zones on the ventral aspect of each tape segment. An alternative embodiment to the tape roll structure is comprised of containment of the releasable segments on a non-adhesive backing.