The later model Scamps have the sliding radius windows
installed these with a foam seal between the window frame and the fiberglas shell. The windows
need to be taken out and re bedded with butyl putty tape. While the windows
are out you need to make sure the drains in the windows are clear so water running down the outside doesnt fill the frame with water and overflow on the inside. Same with the roof vents and escape
hatch. It's a bit of work but not hard to do. Instead of fixing these issues properly everyone wants to go for the silicone gun and that just delays the problem and complicates the repair.