Abstract: Screening overhead door apparatus for screening a doorway, and for addition to existing overhead door apparatus, including a plurality of additional door panels hingedly attached together and provided with openings covered with foraminous material. An L-shaped track for mounting the additional door panels is attached to the existing track, and positioned inside and beneath the existing track. The additional door panels are mounted to the additional track by rollers journaled to brackets attached to the panels. As the rollers run along the track, the additional door panels move from a first position closing the doorway to a second position clearing the doorway. The uppermost panel is attached to the uppermost set of rollers by a slidable bracket, thus permitting the distance between the additional track and the uppermost edge of the panel to be easily altered.