Ok guy's, I've played by the rules and did the search thing for the last 2 hours and have not been able to find the information I'm searching for.
Sometime back there was a post on an interior gut and re-do. Think the poster was from Down-Under. He had major heat issues on the inside of his rig and had found a bubble wrap type insulation that in the end had reduced his cabin heat (temp) dramatically. What I remember most about the artical was the poster had taken' temps inside his rig before and after that showed big changes. Photo's of his work were attached as well as a link to where to purchase the material, trouble is I can't find it anywhere now.
If anyone may recall this artical or have the link to the materials site and could post it or p.m. me with it, I would be greatly appreciative.

Thanks Guy's
GTP

 

I believe it was the heat shielding for a hot water heater. You can buy it in roll form from your local hardware store.