The NOICO has been applied on the inside of the roof in my coupe for 4 years, in northern IL. The car sits outside year around, windows closed when the car was not being driven. There is nothing between the NOICO and my head. Nothing has fallen, sagged, or dripped from anywhere. The NOICO is butyl based, not asphalt based. There is NO odder involved with its application or even after sitting days with 90+ temps, in a hot car with the windows up, while sitting in the hot sun. It has a product use range of 150 to -40 degrees. You need to start with clean metal, you trim the stuff with an utility knife, peal off the backing, put it in place, the roll it tight. Once rolled tight, it takes effort to remove it with a putty knife.

Before the NOICO was installed, I had that silver covered bubble stuff glued to the inside of the roof with 3M 77 spray glue. After about 4 years, the glue started letting go and the bubble stuff would drop down, the wind from open windows would catch it, and I ended up regluing it a few times before I pulled that stuff out. The NOICO stuff is holding much more firm (nothing even appears loose) then the 3 M glue held the bubble stuff. The NOICO also offered more insulation and sound deadening then the bubble stuff did. If it matters, the outside of the roof of the coupe is painted white, so that probably helps, but it was also painted white while the bubble stuff was in the car. .Gene

Great information! Thanks for sharing.
This stuff looks like it would be perfect for my cloth and bow headliner for roof insulation.
Noico RED 150 mil 36 sqft Сar Sound Insulation, Heat and Cool Liner, Self-Adhesive Closed Cell Deadening Material (PE Foam Sound Deadener)
I ordered 50mil KILMAT for the firewall, floors and wheel tubs, I don't think doing any further back than that would really help much.
Copper.

Its interesting how much better the foil covered jute is at both sound and heat rejection than Dynamat or Fatmat type products, and drastically less expensive too. Together they are amazing too, but the self adhesive butyl sheets by themselves are only marginal at best as far as insulating against heat and noise. Dynamat and Fatmat really only dampen panel resonation and slow down the heat transfer. they will get just as hot as the panel in a short amount of time. Not so with the foil covered jute. Thats what a lot of guys get wrong when trying to insulate a car. You can read it here.

The word cocooning just came to mind for some reason. I basically cover every square inch with taped together sheets and custom fitted cutouts of the double foil sided jute mats. the aluminum duct tape seals very well at all the seams. The entire form fitted covering can be removed from the car, and it looks like it was molded to the interior. When installed, I tape it down at all the edges, just shy of where the interior will cover.

Here's a picture of my Vintage Air evaporator with the foil, and Dynamat underneath it. I used to have a lot more photos of my '70 while insulating it, but my hard drive got destroyed.