After much researching and debating wether or not I should even bother with insulation, I decided to go for it. Everyone who I had read who hadn’t insulated wished they had, and only one person wished he wouldn’t have insulated at all, but he lived in a very mild, consistant climate. During and after some more insulation of what kind of insulation I should use, I started tearing out the old insulation. A lot of busses have hundreds of rivets holding the roof panels on which need to be removed, which is a huge pain. Luckily, my roof panels were held on by screws, so other than a couple stuck ones that got stripped, they all came out very easily. The wall panels had rivets, so I had my fair share of frustration going through drill bits, but I was so happy I didn’t have to do the same thing on the roof.

With all the insulation out and walls/roof cleaned up, I started to realize how much condensation occurs when even the thin crappy stock insulation was removed. The roof was dripping everywhere when it was cold outside! I had to put a tarp down on the inside so that It wouldn’t damage the paint on the floor.

I decided to do things right and spend a little extra money to go with 1.5″ thick polyiso insulation on the roof and walls, and 1″ thick over the lower portion of the windows. After a couple of days of half heartedly doing the walls, I sucked it up and spent a day to do the roof, and it was actually not as hard as I thought it was going to be!

I went and bought some spray foam insulation that was suppose to be good for adhering the foam board to the roof, but I didn’t end up using it unless I cut a bit too short and it wouldn’t pressure fit. I still need to go in and fill in all the cracks with the spray foam, but I’m pretty impressed with how well and easily it came together!

Fortunately on this bus the lower part of the windows aren’t able to open and only the top little section is. That means they are much quieter and I can cover the majority of the heat/cool robbing windows but still have the upper section to open if I want a fresh breeze. I plasti dipped over the lower portion of the window for some stealth and just pressure fitted the insulation.

Next up is fitting the solar panels, wiring, and roof fan before putting up something for walls/roof. I’m still not sure exactly what to cover/finish everything up with so any suggestions would be helpful!