Trying to cope with copings can require copious amounts of comprehension; phew. Call Malachi Consulting to sort this one out. For starters, to “cope” anything means to trim or decorate a leading edge (of a building or appurtenance), and typically on three planes.
Funny word, serious business this component. The word scupper originated ships at sea and is a hole in the side of the vessel to “carry water overboard from the deck”. In roofing, the application is much the same.
Is your building ‘flashy’? Perhaps but more importantly is it water tight. Flashings are (usually) metal components that assist dissimilar materials, or geometric facets of your roof come together to create a waterproof assembly.