Decided I would grab the bull by the horns and not play games with it. Removed the entire skylight. All I had to do was work my fingertips under a corner where the sealant failed, give it a tug, and the whole thing came off. Hmmm... if the wind got under it at highway speed...
Anyway, bought some aluminum at the local metal shop, and weatherstripping and a fibreglass panel from Lowes. Now I have a solidly built, weatherproof lid on the opening. That's all I have time to do right now. Next spring, it will get a window crank and piano hinge so it can be opened. And a screen and insulation too. Haven't decided yet if the two small skylights will simply be replaced with fibreglass panels, or if they will be openable too.
I'm not too pleased with this, if the folks at Forest River are listening. If they care. Considering the number of repairs I've had to put into this trailer after taking it out only three times, I have an opinion of the quality of these units, and it isn't good.
2011 Grand Caravan