A hot surface, such as a roof, is not likely to hurt a raccoon. While their paws are quite sensitive, they develop calluses very similar to dogs, cats, and even people. That’s how they are able to walk and run across sharp stones and gravel without flinching. Otherwise Doctors and Vet offices would be inundated with sore feet on us and our pets every summer. Yes, concrete and asphalt pavement can get very hot in the summer but wildlife as well as our pets usually have enough callus formation to prevent any injuries, unless they are still very young or are not used to walking on hard, rough, uneven surfaces.