A lot of good advice here!! I was going to use some 1/4 inch thick closed-cell polyethylene foam which comes in packages arriving at work. It's the stuff that comes in white sheets and doesn't absorb water at all. (I'm cheap.) It's extremely light and I was going to lay it in without gluing. I wouldn't use a cotton insulation, especially in a humid climate. I'll rethink the project. Thanks a lot.


1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.