Our dry verge system offers a mortar free capping solution with a neat inter-locking design which is available in terracotta brown and charcoal black and has a durable polypropylene construction that will not rot and is maintenance free. Geoplas Universal Dry Verge Starter / Filler Moulding are designed to provide a protective solution for inter-locking tiles. The filler is used to help prevent insect infestation within the roof space.