Paint would probably be much better for OSB to really seal it up.When the weather gets better i'm going to stain the wood.
Yep, you removed the soffit and kept the fascia. You should put some hardware cloth across the rafters and screw it to the coop wall and the fascia to keep predators from getting in there.
Like this, but mine comes down the coop wall to cover the windows which open inward.
Last edited: