US Energy Products Double Sided Reflective Heat Radiant Barrier Aluminum Foil Insulation (1/4 Thick R8 Double Poly-Air) Roll: Walls Attics Air Ducts Windows Radiators HVAC Garages Sauna (36" x 25')

Exactly what I needed.The best is the customer service, if you have any problems they give you a phone number in the package that you deal with them directly. I appreciate customer service like that!

I used this product to enclose my mushroom fruiting chamber. It was easy to cut to size and strong enough to withstand the slight air pressure within the chamber. It is completely moister and mildew resistant, an important requirement for my application. One minor issue is that, because it comes in a role, the surface on the inside of the curve is a little wrinkled, making it hard for me to get a perfect seal. Perhaps if I had gently warmed the surface while holding it down flat or simply used the other side, I would not have had this problem.

Perfect

I like everything about the product's potential. My bedroom faces the afternoon/evening sun and I had hoped to put this against the window pane to lower the room's heat. BUT, I rent and the owner would not allow aluminum to be put in windows. So, I had to donate it to someone that could use it.

Our house has tons of windows! I love natural light! A few windows, tho, are sun drenched all day, which turns the rooms into solar ovens!!! So, I took a chance on this stuff. WORKS GREAT!!!!! I just cut to length, and about 2" wider than the inside measurement of the window casing. Then lift and press into place! That's it! When I want to open a window, say at night, and use the fan, I just roll up the insulation. Next morning, roll it down, press into place - voila! It's lightweight, durable, cuts easily with regular scissors. It's a bit pricey, but I'm glad I did it!!! One roll did 5 standard windows.

Product was as described and proper measurements as well. Arrived quickly

This material fills a void in the market for alternate insulation solutions. We used it underneath a newer mobile home, wrapping all the duct work and vents prior to spraying closed cell phone. It was the only product that would work and it worked very well. Like it so much we ordered more for similar use. It's easy to cut, fold, and fill in small spaces where you don't want foam or air to come through. Highly recommend.

Easy to use. It just like bible wrap with a thin film of reflector on it. Great for insulating a bathroom vent with an in-line fan.