The top pic is.....you guessed it dsrtgrls........ETERNABOND TAPE (EB tape)!!!!! This crap was placed down the seams at the edge of the roof all the way....front-to-back, along with 'sealing' around the fans/vents, front and rear cap seams and antenna base.You ever try to remove one of these Winegard crank up bases that Airstream used to use? Aside from the 12 screws that hold it to the roof, the factory beds it in liberal amounts of SikaFlex. THEY JUST DON'T MOVE!!!
THIS STUFF (EB tape) DOES NOT STAY DOWN AND SHOULD NEVER
BE USED ON AN AIRSTREAM!!!!! It's like silicone (which I'll get to in a minute). Once it's down, it's very hard to get off clean and it leaves a residue that is a sticky mess.
And speaking of silicone, not only did they use this garbage tape liberally, they ran........you guessed it........silicone
along both edges of the Eternabond tape. Guess they didn't have confidence in it either. The top pic shows how it was detaching from the front edge of the rear cap seam.
The second pic is of the front dead vent that is being replaced with a MaxxFan. It had the entire edge covered with 3" EB tape, but due to the chemistry of the plastic in the vent bezel, I was able to get it up with almost no residue. The silicone around the edges is another matter!!!!!
And for the batteries......lots of good answers!! J.Morgan was spot on about crossing positive and negative cables, strshpntrprz had a good observation about the proximity of the hold-down (which is frozen at the moment) to the positive terminal, Jim and Susan caught the silicone, J & S and overlander63 got pretty close on the antenna base and Dave added some encouragement!
The shot with the awning cover was another of the EB tape peeling back from the surface.
The last shot of the vent also showed that the PO deliberately removed the factory SikaFlex layer that they use to seal such items so the EB tape would lay flatter?
And the piece-de-resistance........ the roof cap for the black tank vent pipe, which is fairly new.....was totally sealed with silicone!!!!!!!
Some folks just don't get it.....but you guys are getting MUCH BETTER!!!!
Thanks to everyone for your comments!!!!