I purchased this product to line an outside wall that was placed within 8 inch of my boiler. I also added Fiberglass insulation in the 2 x 4 wall under it. Room temperature is at least ten degrees warmer and so far works perfect.

I used this insulation on the outside walls of my goat's barn, the 2 sides where the wind hits, as well as on the 3 windows. It definitely feels warmer up there for them and certainly stopped the drafts. It is also extremely easy to work with as it is thin and cuts easily. I was able to staple the strips I cut wherever I thought they were needed. I would buy this product again and probably will do the ceiling over their heads for next winter.

I used this to cut out pieces that would fit the windows of our van while we slept at night on a camping trip where temps got down in the thirties at night! And it worked perfect! Got privacy along with some insulation. It's not real thick but it is tough as it is wrapped in foil on both sides.

I purchased this product to cover an aluminum firewall.
It has a nice appearance and is easy to work with. After seeing the prices of what is being sold in the automotive market such as sound deadening products I knew their were alternatives to being gouged by the brand name sellers.
This should do fine & I have a 2 foot by 50 foot roll of material that I can use for other projects.
I did a quick test to see how well it held up to heat by blasting it with my Porter Cable heat gun. With it on the highest settings , holding it a couple of inches away from an edge I was glad to see it didn't burst into flames nor did it shrivel up into a ball or even shrink . It retained it's shape although it did flatten out - loosing it's "puffiness" so rather than having two thicknesses of material with an air space in-between , it's more like a thicker flatter piece. LOL!
It is about the same as the edges that you would staple through to attach it to 2 x 4 wall studs etc.
I will use a spray adhesive to attach it to the firewall .
It's a good product. It arrived within a couple of days , being a Prime customer I had to overlook the shipping and viewed it as just the price of the product.
So for about fifty bucks I ended up with 3 or 4 times the amount of material I would have had .
If you want to spend a lot of money you could check Eastwood , Sound Buddy's and others.
I'd buy this product again , but I still have a lot more to use . I will probably start with the garage door , next up the shed . . . . . then the . . . . .
Buy it , you will be glad you did.
Don