My roof was leaking really badly because of a rotting portion. We ripped all that out and replaced it, patching new boards and shingles with the old undamaged ones. Most of the roof stopped leaking except for this portion on the edge of the roof right up against the wall. Every time it rains water drips down onto our couch and end table. I'm not sure why it is still leaking when there is brand new shingles up there. It's right where the old is joined with the new so that could be the problem. Also at the corner of our house on the underside of the roof that juts out the siding is coming down and I don't know how to fix that. Any ideas?