INSULATION MARKETPLACE SmartSHIELD -3mm 16inx50Ft ReflectiveINSULATION roll, Foam Core Radiant Barrier, ThermalINSULATION Shield - Engineered Foil

I used this to insulate a small area of my basement for indoor seed starting. Previously that area was very cold, and had effectively no insulation between it and an outdoor crawl space (aside from a few semi-loose plywood boards), and the area was also on top of a big poured concrete pier/slab thing. So basically, the air was around 50 F in the winter and the surfaces were cold. Also, drafts (outside air) came in from the crawlspace through slits between boards. This is despite all the seed starting gear (lights, heating mats, etc.). In previous years I have even put a small space heater down there in an attempt to try to get the soil up to 60 F+, which is where I want it to start things like sunflowers. So I bought a 50-foot roll of this stuff and cut three 14-foot strips of it. I tacked one long strip along the area that meets the crawlspace. (Used a staple gun—not sure if that's the right choice, but it's what I had.) I also laid a long piece on the concrete surface (no attachment, just laid it down and put plant mats directly on top of it), then added a third piece that ran between that surface bit and up to the wall/crawlspace interface. I stapled the that third piece onto a wooden beam, and used packing tape to attach the lower pieces where drafts were trying to blow through. This allowed a mostly leak-free insulation shield about 6 feet "high" by around 14-ish feet wide. I put back the same temperature monitor that had read 50, and within a few minutes it was up to 55. Hmm. That's good. After I reinstalled all the seed starting stuff (a few low-power heating mats, four low-power LED lights), the temperature went up to 65 degrees and stayed stable (!!). I have seen a few dips overnight down to 62, but in general this area that was consistently 50 degrees F (WITH lights and heating pads) is now mostly 65 and up (at one point it reached 70, which is actually pushing it as far as seed starting is concerned). The space heater is gone—it would be way too hot at this point, and in fact I'm considering adding a fan or something, triggered in case the temp gets close to 70, just to circulate some of the heat away. For the price, I'm extremely impressed. This stuff definitely created a thermal barrier between the super-cold cement block that the seedlings sat on—that block is such a huge mass that there's no way a heating pad is going to ever warm it up (remember, we're in a basement and this is essentially a secondary foundation wall that just happens to be super wide). The insulation also created at least a basic vapor barrier on the interface w/crawlspace, blocking a lot of drafts and little gaps. The fact that it's so thin and easy to work meant I could also tack it up around edges and corners, which is where the drafts were the worst. I know this isn't really designed to be the only insulation in this use case (I might have been better off installing batts of fiberglass, and would certainly do so if I were trying to treat an entire basement), but it's cheaper, MUCH smaller, MUCH easier to work with, AND you can wipe it down (within reason—it IS possible to rip the shiny surface). If you're looking for something very thin with a good radiant shielding effect, this is it. The only downside I can think of is that the material is thin. While this is usually a positive, you do need to be careful with it, as it's possible to rip the foil layer and have it start peeling off. That's different from a lot of other kinds of insulation (fiberglass batts, foam board, spray...) where the material itself is real tough and workable. This is thin and precise—install accordingly.

Must use gloves when installing; great insulation for windows with air conditioners installed; good for both summer and winter; flexible and easy to fit most areas; does not adhered to surfaces; lightweight; does not give any noise when air conditioner is in use;

Great for insulating windows in RV in the hot summer sun. Also used for projects. Made a carrier for a painting and it has held up great. Large roll makes it a good deal.

I have a huge sliding glass door in my apartment that is literally a whole wall of my living room. But it's pretty darn old and you can especially tell in the winter. The draft that just wafts right off all that glass is enough to even move the curtains when the wind is the right direction. So when the temperature drops outside to below freezing, you just feel the cold rolling all the way across my floor. I was looking for something that I could put just along the bottom and try to stop the worst of it. And this works! I like how easy it was to cut to the hight I wanted and, once taped at the top and bottom, how much of the draft it blocks. This has made such a difference in how cold it is when sitting on the floor or even just standing by the door. It's not enough to block all of it, obviously, but that's not what I was hoping for anyway. I'm very happy with it.

The sun was beating down on my bedroom window so badly it was warping my blinds. The difference in temperature was almost frightening. Since I used the insulation I’ve seen a massive improvement. And it was So Easy to install. I paired it with 3M’s insulation tape specifically for windows which sealed the insulation right up. The appearance from the outside is in my backyard. And tbh it’s not all that bad. The other benefit besides sealing the heat, is it’s sealed off the drafts as well. I Highly recommend this product to anyone reading this.

If you’re looking for a simple and efficient way to improve your home or office’s insulation, the SmartSHIELD -3mm Reflective Insulation Roll is a solid option. The foam core and reflective surface work together to block radiant heat, helping maintain comfortable temperatures indoors. It’s lightweight yet durable and easy to cut for custom sizing, making installation a breeze. Whether you’re insulating a garage, attic, or any other space, this roll delivers reliable performance and can help lower energy costs. Pros: 1. Effective Thermal Insulation: Blocks radiant heat and improves temperature control. 2. Easy to Cut and Install: Customizes easily for different spaces. 3. Lightweight Yet Durable: Offers lasting protection without added weight. 4. Versatile: Ideal for home or industrial applications. Cons: 1. Limited Size Options: May not be sufficient for larger areas. 2. Requires Careful Handling: Tends to tear if not handled carefully during installation. For those looking for an affordable, simple way to enhance insulation, the SmartSHIELD Reflective Insulation Roll is a practical choice. It provides solid performance without the hassle, helping to keep your space more energy-efficient year-round.

We needed something fast to help with the heat in our 5th wheel and I found the SmartShield in lots of different sizes. It was a very good price and it arrived SUPER fast. Easy to manage (lightweight), cut and fit, it’s worked so well I bought it a second time to line the walls in the pantry, medicine cabinet, and in the closet-the heat was so surprising as it was only 90 degrees outside. It was just what we needed, and we got it in time. The hard part was finding something l could use to adhere it to the windows and walls but not remove paint or the wall material-blue painter’s tape did the trick. (For the pantry and inside cabinets I used a double sided tape that is reusable. So far it’s stayed. There are a lot of refectix materials out there, this one is like a foil-looking bubblewrap. It’s pretty versatile too as we’ve even used it to line the inside top of our ice chest to keep things from heating up too quickly.

This worked perfect for what I needed it for and it’s good to know that I didn’t need to wear protective gear to handle it

Donde vivo llegamos a temperaturas de 40-43 grados, y con este aislamiento en las ventanas logré que la temperatura bajara y la habitación no se calentara tanto. Lo compré principalmente para que uno de mis perros no sufra con el calor (es pastor alemán), y si he notado como pasa mejor noche.

Easy to cut into the required lengths. Have used it on the inside of a garden shed but will have to wait till next week when the temp will be in the high 30's to see if it helps.. was delivered before due date.

The amount of heat this keeps out is really amazing. Old house, old windows, poor insulation.... During the 'dog days' of summer even with the AC running non stop, it would get fairly warm then cool off as the sun set. I did some research and put some pipe insulation over the AC exhaust (portable) and grabbed a roll of this stuff after reviewing most of the brands available here this one seemed legit and the right size I needed as well. Glad I did. Now, there's a heat warning and it's noticably cool upstairs. Not like before. This stuff works!

Bought this to use on my sliding doors glass windows which we never open to keep the sun out and this 50ft x 16 inch roll was more than enough to cover both doors

Bought to put in the windows of our rv to keep it cool and it works great.