I need some ideas on how to add a roof over my back patio. Preferably one that does not connect to the house but anchors into the concrete and fits under the small overhang of the house roof. I’m worried we won’t be able to angle the roof while staying under the small house roof overhang. There is about a 1’ drop for the right side of the roof. Any suggestions/designs are welcome or even premade pergola/covers. If we must attach to the house, what would be the best options?