Should a w valley go all the way to the edge of the roof? I had issues before in this area, that is why I had them do this but it looks like I have the same problem with water flushing off and going into the fascia corner. I think the roofer could have fixed this detail when he was replacing the decking by outsloping the corner somehow. He says no and it is all fine, anything I should do at this point? Roof is 30 days old.