Interior insulation ideas?

[vectorit]

I am in the process of trying to figure out the best method to add more sound proofing, and in the same effort try to reduce excess temps inside the Suburban.

The area I am focusing on is the rear cargo areas behind the side panels.

Some Idea's I have so far:

1. Hard board insulation - The type used to panel role up garage doors? Then cut to shape. I like this one the best, since I could easily remove it if I had to.

2. expanding insulation foam, that would be sprayed inside a plastic liner. Not sure about this one, since I would not want a place for moisture to be trapped?

I have already used Dyna-mat through out a lot of the interior, but I have not done anything with the rear cargo area except for adding additional floor padding. I have been hesitant to apply Dyna-mat to the inner body of the cargo area, though I have seen a couple projects on here where it was done everywhere including the ceiling.


What say you?