Cat on a Cool Tin Roof

This cat has been coming around our house for years now. We don't really have a name for her, but she's very sweet and obviously has other humans to look after her, because she's healthy and pretty clean. She will sometimes come inside the house; she's a bit like a second pet, although without any of the responsibility that comes with actually having to take care of her. Today I came home from a visit to the library to find her on the roof -- not an uncommon position for her.