cover flashing

counterflashing, cover flashing, cap flashing

counterflashing
A strip of sheet metal, often built into masonry and turned down over other flashing; used to prevent water from entering the joints and the exposed upturned edges of base flashing on a roof.
References in periodicals archive ?
Install new code 5 lead cover flashing giving adequate cover.
The roof and upstand were renewed and a cover flashing fitted over the joint.
Simply fold the lead back down so the cover flashing is in place.
Vary the effect by using sheets of copper, or cover flashing with metallic paints.
The part that you can see is called the cover flashing because beneath it are L-shaped lead plates, called soakers, set under each slate separately but overlapping each other down the slope.