We have a 1963
Globetrotter we are redoing. . When it rains, we get rain in the rear around the window. AT first we thought it came from the window itself, since the window is just taped in. We now believe it is leaking from the gutter. So, should we take the gutter off and reseal it with Butyl tape. IF so, that means we will drill out the rivets and then replace them with Olympic Rivets, since the inside walls are in place? OR, should we clean out the area and reseal the edges with Vulkum. OR, do something else?