Abstract: A drip cover for a fenestration unit. The fenestration unit includes a frame and a slideable panel supported for sliding movement within the frame. A gap is defined between the slideable panel and the frame. The drip cover includes a mounting member configured to attach to the slideable panel. The drip cover also includes an overhang that projects from the mounting member and that is configured to cover over the gap when the mounting member is attached to the slideable panel. The overhang is supported for resilient flexure relative to the mounting member between a neutral position and a flexed position. The overhang is resiliently biased toward the neutral position. The overhang, when the mounting member is attached to the slideable panel, is configured to contact a surface, thereby resiliently flexing the overhang between the neutral position and the flexed position, as the slideable panel slides relative to the surface.