I am more wondering on the pic ... about the green mansart with all the peeled paint or vinyl on it?
We have a metal mansart that has been run into in the past by high profile vehicles. A sheet metal shop bent for us some new panels to replace the damaged. A body shop then professionally prepped & painted to match the existing panels' color.
Not to change the subject but ... the mansart allowed us to mount some permaboard solid plastic letters that we cut out with a jig saw using a CADD printout that a large format printer did for us. It can be seen on our below website's pics. The letters outlasted most of the flimsily mounted on strips lettering around town ... plus were bigger letters. Threaded inserts were melted into (embedded) in the plastic ... one of the most durable practical projects that we did!