Leak in the poptop: What's in the roof?
Vehicle is a 2006 Ford RB50 with SMB poptop: Late last summer I found my solar panels were not working, so I did some checking of the panels and wiring up on the poptop roof. I removed the little cover over where the wires go through the poptop, and replaced it again after doing the checking. I simply screwed it back on and didn't apply fresh silicone. Fast forward to this weekend when I raised the top for the first time in months, and I found rain water had been leaking into the poptop all winter... The wires go through the top in the front corner above the driver's seat and usually when the van is parked that is the low corner, so the rain water runs that direction.
Today is sunny so the top is up and a large oil radiator heater has been running in the van all day. Damage looks minimal so far. One curtain was soaking wet and has spots on it from where it was contacting metal. Poptop fabric is also soaked in one corner and only on the upper top half. The front driver's side corner (below where I think it leaked) of the inside roof paneling showed a slight discoloration and very slight mold growth.
My question: What is between the fiberglass poptop and the inside ceiling panels? Just air space?
I am going to replace the solar panels this summer, as I have no indoor work space and need to wait for warmer and dryer weather to do the project. I don't want more damage to be created between now and when I work on the panels by leaving the ceiling sealed up for a few months, but I'm not really in place where I can work on it now.