Copper Ridge Roll – For use on pitched roof ridges and hips. The two corrugated side flaps are designed to drape down over the top row of tiles on either side as the roll is opened out. The lower corrugated portion of each flap is finished with copper which will help inhibit the growth of moss and lichens on the roof slope. The underside has a strip of self-adhesive butyl protected by an easy-release backing tape.