On to insulation. I used a combination of spray foam (I used
Tiger Foam, 600 board ft kit) and
Thinsulate. On the camper side of the compartments I had to fir out with 1x1 AL to screw my finished surfaces to and give myself a guide to cut the excess spray foam. I didn't try to get every litttle bit of foam, I was fine with "about" an inch at the bump ins and 1.5 inches on the walls.
Here you can see the 1x1 used as fir strips:
You can also see the CR Laurance window I installed here. It's fine but I wish I went with an awning window of some sorts so it can be left open in bad weather.
For the studs on the walls I drilled and used closed cell foam in a can. I went slow so the foam had access to air for curing. I still had a few spots that ooozed foam when I attached my cabinets.
I had sprayed
foam from a kit like this before in by Sprinter. Much much easier in the ambo. I think one of the keys is to follow the directions closely. You must shake the bottles of foam and have them and the surface to be sprayed at a certain temperature. I set the bottles in front of a electric space heater inside the camper for over an hour shaking every 15 min or so. Tape off what you don't want foam on and spray away. Cover every inch of your body or you'll be pulling hair out.
All trimmed up... I used Thinsulate at the front and back where there are lots of wires. The top will get a combo of more spray foam and some Thinsulate when the pop top goes in.
The roof of the cab got a pretty standard
Noico and
Thinsulate treatment:
I also stuffed Thinsulate in the A pillar and every other area I had access to.
