I am trying not to work too hard on this. The constant, relentless rain for the last few days is helping me with that. I decided it would be a good idea to drop the ceiling panels while it was raining to pinpoint leaks in the roof.
That was about 1/3 of the screws I took out (1 quart gatorade bottle).
I was geekin' out over the pneumatic cylinder used to open / close the door, I thought that was cool. That assembly definitely needs some grease though!
End of yesterday, all the screws (thankfully not rivets). I only had to cut ONE screw. The rest came out fine. You can use either a big phillips bit or a robertson (square) bit on these screws. So when one wouldn't work, the other would.
Many, many stinkbugs were nesting here due to the hole in the ceiling (vent) that I am removing.
All the panels out...
Also got all the flooring out including the stairs. Only flooring left is under the drivers seat which I will take out soon.
Next project is to scrape up rust on the floor, and wire brush it, then paint with some rustoleum rusty metal primer, or rust converter if I can find it by the gallon. I found a couple of spots that I really should cut out and replace, high traffic areas where the metal is nearly rusted through. Surprisingly the stair area is fine but the aisle in the front of the bus is heavily rusted. I want to wait until this rain stops to do that though, so I am kind of deadlocked until then. I found a few leaks that should be easy to fix. Once I do those, and paint the roof with really thick insulative rubberized paint a few coats, that should seal everything up nicely. I have been considering painting the inside of the ceiling with the insulative paint too, is that a good idea?
I also need to remove the windows and scrape the old sealant off and re-seal them with some silicone. Several are loose and the sealant just doesn't look good. My uncle (whose place I am keeping it at) sells and installs classy shower doors for a living and therefore has cases upon cases of super strong industrial silicone laying around and said I can use however much I need (he may regret that). So that part shouldn't take too long IF I COULD GET SOME HELP FROM ANYONE.
Insulation-wise, I have been thinking about foam. The 2" of fiberglass I took out was pretty dirty in a few places but overall wasn't as bad as wmkbailey's. 2" of fiberglass has an R value of 6.7 whereas 2" of foam has an R value of about 10. Combine that with the reflective / insulating paint (on both sides?) and some Great Stuff to fill the gaps / odd corners and it should be pretty tight. I was thinking I could double up 1" foam board, rather than using 2" because the 1" would be easier to bend / shape. If I can get the wall panels off easily I will do the same, but I really don't want to have to cut them. Apparently they are wedged under the window sills pretty good.