Anytime we have a 90 degree turn in a cap I want a good membrane at these critical junctions. Tyvek Flexwrap is what I use.
We are using 36? wide rolls of CCW 705 and it’s only practical to run them in about 6' lengths to ensure wrinkle free application.
Where the cap meets a wall we again want to run Tyvek Flexwrap. Sam is using High Strength 90 to prime first.