Confused as to what we are looking at in the last photo - last one looks like a pebbled driveway.....
When I redid both my roof hatches I used the DAP Silicone Be Gone to get the load of silicone off the roof as well as off the escape
hatch itself before I resealed it. I have tried other ways off getting off silicone but found the DAP to work the best. Let it sit on the escape
hatch over night in a shaded cool spot and it worked really well, came off easy in the morning. Then used just extra fine steel wool to get the last of any sign off of the hatch trim itself .... just make sure you use enough of the DAP. Once I got the big chucks off the roof of the trailer - I used the DAP on it as well but only left it for an hour or so before scraping off with a plastic putty knife. Once I had it all off I used a 3M marine fiberglass compound on a power buffer to shine up the roof. Reinstalled the hatch with butyl tape and rivets using caps of the rivets on the roof side. Finished it off with a good waxing of the roof turned out well.
Cant find the photo of the escape hatch redone but here is one of the outside roof around the Fantastic fan, the escape hatch looks pretty well the same.