
Note the ice on the far right edge of window

Look at that ice way up the wall!

Note the gable vent......this a cathedral ceiling inside and the vent is in the heated area below the ceiling
That's pretty funny! :laugh:
Is there a ridge vent?
Looks like a good place for a heat cable. I have come to believe that a lot of the leaks that I see cannot be solved no matter how much insulating and ventilating I do. Heat cables are the only way to keep some of these areas from damming up. That looks like one of them.
This season has been so extreme that a lot of people are getting leaks that they haven't had before. Of course a lot of people haven't been in the house long enough to have seen these conditions.