Hi All, at my parents house they have a small parapet wall between a flat garage roof and pitched extension roof. They have a water leak in the ceiling under the pitched section. Looking above this area the copings the builder has fitted are the same width as the wall so I'm thinking with no drip edge that this is the cause of the leak. The verge and tiles all look OK to me. I was thinking of dressing the whole thing in lead but have never done that before and would appreciate advice on this.