Insulation, Peel n seal and other budget insulation ideas

Darticon said
Oh, before I found the Noico stuff I also bought a few packs of this Zirgo UltraMat.

UltraMat Heat and Sound Barrier Sheets | johnnylawmotors.com

I used it to do the roof because it is crazy light weight. It isn't a peel-and-stick. Used some 3M spray adhesive and then some aluminum tape I got at Lowes/Home Depot.

I decided not to use it on the floors because it felt too light (very little sound deadening). But the heat difference was HUGE. The car went from being an oven to comfortably warm on a 90+ sunny day.

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You can get that same exact stuff a lot cheaper at a heating and air business.
They use it to line the ducting when making custom sections, and usually have a huge roll of it.
When I asked about buying some the guy asked how much I needed and gave it to me free because it was so little compared to what they use.

Just an FYI for anyone.