Hey, folks, I'm getting ready to install the "new" (bought it 3 or 4 years ago) headliner in my '51 3100, and I'm again checking on here to find out everybody's opinion on what the best backing/insulation is. I actually bought a section of the wool/fleece/whatever it is, but it's hiding from me, so I thought I'd see what the forum says. To be honest, I asked this question years ago before I bought the materials to install it, but I'm a geezer and I can't remember what anybody said. Plus, there may be something better by now. I have to admit I'm not too crazy about putting the foil type stuff with air bubbles in it. I can understand there is a dead air space in the bubbles, but it just doesn't seem like a good idea to me to have plastic bubbles inside a steel roof that can get over 100 degrees. I'm also not convinced it's that good of an insulator or sound deadener. I've seen the fiberglass rolled insulation on metal buildings that I spent a lot of time working on being replaced by the 'bubble wrap' insulation, and can't imagine it being anything but a cheap imitation of real insulating materials. Anyway, after seeing some insulation at astronomical prices on LMC and classic parts, I'm still leaning on the gray fleece stuff, but wanted to hear from you all. Thanks, Lee
