What ever you find out Jim, make sure you post it so the rest of us don't have to go through the same thing. I was thinking at one time about using a few squares in the doors and maybe roof just to get rid of that tinny sound whan you close the door. However, I was reluctant because of the very problem your going through. I'm wondering if what you have is was some of the roofing material that some of the guys have been touting as an inexpensive sub for Dynamat? If so you might try kerosene since it is usually tar based.
Denny Graham
Sandwich, IL
