Headliner insulation

I have read just about every thread on the site about insulation, now I need to ask opinons.
I bought a new interior for the Demon including abs headliner. Now beginning and end of the season it gets chilly at night and we get the condensation on the roof. Here is the question what is the best roof insulation to go with?
I read in a thread that the bubble stuff works well and would not hold moisture.
What other options are there?
Author: admin