Context
There is a what I believe to be a small dogwood in my backyard very close to the house. Fox squirrels frequently jump from the tree onto my roof. They all use the same spot on the same branch. The branch is, as a result, frequently getting scratched and damaged on that spot. The branch is thinner than a paper towel cardboard tube. Image below.
Questions
Should I treat the branch?
Is there a way to protect the branch from future damage?
Notes
I do not want to remove the squirrels or otherwise harm them . Also given my area removal isn't an option given their very large local population.