I also picked up a can of high heat foam filler that I plan to use to fill the voids behind the panel. I'll seal the small holes from the inside with aluminum tape, then spray it into the cavity. It should make a good heat barrier, as well as make the panels more rigid.
Robert C.
If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.
1950 3600 
