After a raccoon finally left my attic, I had the roof repaired. The roofer pointed out a problem that has apparently existed since the house was constructed. As the first picture below shows, far back under the eve, there is a barely noticeable open spot. What I had thought were a lot of small twigs is actually chicken wire. Someone was obviously aware of the problem long ago.
The second picture shows more detail. Not only is this hidden area a nicely protected spot for an animal, there is an opening in the stucco on the wall. It looks as if it was too difficult for the builder to reach for him to be bothered with sealing it up. (It's too late to come to terms with the builder.)
My question is how should I go about sealing this up? I'm not sure if I actually have to seal the wall. Generally, these attics are ventilated, so air flow shouldn't be a concern. (Am I wrong about that?)
I thought I might fasten a piece of marine plywood behind the blocking shown in the second picture, contouring it to follow the wall and the shingles to within about 1/2 inch, and then doing the same behind the fascia, meeting the first piece at a corner near the outer end of the blocking board.
I might laminate a piece of aluminum on the outside of both pieces. These raccoons can be persistent in getting back in. Of course, I would paint this all to weatherize it and to blend in.
Am I making this too complicated? What else can I do? I want to start with a good plan that can be accomplished without going up and down the ladder too many times. How would a professional do this if this was his own house?