Maybe I misunderstood but are you staying there is a possibility the roofers sealed racoons IN the attic? Are they crazy? Racoons, even one, can wreck their attic. If one dies in there it will STINK in the heat.
OK, it's sad, but not everyone gives two hoots for animals. Don't they care about the house though? Could you present that to them as an argument? Surely if they are only guys doing a job for someone else it is still incumbent on them to make sure the attic is clear.
Gosh, I'd think if a family of racoons has been there for some time the place would smell from faeces and urine already. Sure did in a family member's house. Urine was staining the ceiling.