First area is the the roof area and gutter.
The gutter is mostly orange, so that is getting Kurust treatment and then a rub down and spray..
but, under the roof the corners have a bit of rust..
but they also have a plastic strip stuck down.

To treat the rust I needed to remove these (I used a heat gun and lots of broken finger nails)
Any idea what these do?
Should I replace them?
Thanks as always for great helpful people.