Truman enjoys sitting on the roof before I go to bed. I think it’s his way to connect with nature. I discourage him from climbing up to the higher roofs. They’re flat and he has no danger of falling off, but then he tries to get down on the slanted roof over the gazebo and the like and I don’t enjoy that as much as he does.
The flat roof outside our bedroom is accessible by door. There’s a mechanical closet and a storage closet out there, so we get situated out there from time to time. He’s usually purring during the entire experience.