Air sealing sheathing around dormer window – GreenBuildingAdvisor

CZ 3A/4A (N GA area)

2001 gut reno

We have a dormer window in our upstairs bonus room, and I’m not sure what to do where the roof sheathing meets the angled wall sheathing around the dormer window (circled in red).

Do I need to caulk? Tape? Leave it be? 

I included a closeup pic as well