SmartSHIELD -5mm 24"x50ft Reflective Foam Core Insulation roll, Cold and Heat Shield, Radiant Barrier, Thermal Insulation - Engineered FOIL/White Film

I love this stuff. I don't have a very scientific way of measuring its insulating property, but you can tell the shiny side is bouncing heat back at you. Just 5mm seems like it made a big difference. I used this to insulate the inside of a brick foundation wall and also function as a vapor barrier. The below-grade part of the wall transmits moisture from the ground, which I wanted to block, and the above-grade part of the wall gets cold in winter and condenses moisture from the house. I think this material will do both things and we are hoping it really reduces our moisture/mold problem.I'm thinking of using the leftovers to insulate appliances (freezer, fridge, water heater).Anyway, I wanted to say how easy this stuff is to work with. It has enough body that it was easy to measure and cut with the roll standing up (to avoid dust getting on it by touching the floor), and to lay it into place, is easy to cut with ordinary shears (you can just push the shears along it), lightweight enough that I'm not worried about it falling off the wall. It also has a bit of stretch to it, just enough that it can accommodate the unevenness of the wall and be pressed closely in to the butyl tape we used to mount it (to which it stuck quite convincingly). I sealed two panels together using foil tape on the shiny side. The polyethylene membrane on the white side is quite thin, but overall I am confident this material will work as an effective enough vapor barrier for the purpose at hand. Altogether, I am very happy with this material.

Very nice product and easy to work with and install which showed heat reduction results immediately

I live in the Las Vegas area. Summer temps can get up to 114F. My house has a wall of windows that face west, which is the worst possible configuration for a desert home. The sun blazes through the windows all afternoon and my ac has to run non-stop for hours just to keep the interior temp at 80-82 degrees. Closing the shutters didn't help. I found this reflective foam insulation and taped it to the interior window frame with double stick Gorilla tape. OMG the temperature difference is incredible. It's a good 15 degrees cooler. I can keep the ac at 75 and it runs about 50% fewer hours. Highly recommend.

Right off the bat I’ll say that if you order too much, you’ll get hit with a restocking fee to return unused rolls. Just be aware.The insulation itself is quite good considering how thin it is. I placed it in the roof (aluminum side facing up) and saw a solid 15 degree F drop in temperature coming off the roof. That’s pretty good. Just be aware that because this is not a rigid product, you’ll have to find a way to install it properly. My recommendation is to roll it out and staple it to wooden studs.

I bought this a while ago, and I built a cold storage room for canned items and canning foods for a customer. I put up 1” by 3/4” Slats of wood over the drywall. Then painted everything and sealed it. Then I went through and cut all these pieces and use more of the wooden slats to go over it and hold it in place along with liquid nail. So there Is a gap between the drywall and this insulation. So when it’s 110 outside like it was the other day it’s 57° in there. Plus, I oversize the AC a little that helped I’m sure I recommend this stuff if you do it, it will definitely help tremendously!

highly recommend works great keeping heat out of my home. Waiting on winter but I’m pretty I’ll be good keep the cold out .

Easy to apply and make rooms cooler in your home 🏡

Didn't last as pong as hoped