INSULATION MARKETPLACE SmartSHIELD -3mm 16 inchx25Ft Reflective Insulation roll, Foam Core Radiant Barrier, Thermal Insulation Shield - Engineered Foil
Condition: New
Buy Now, Pay Later
As low as
$8
/ mo
Learn more
- – 4-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Wednesday, Sep 17
Recently Viewed
Size: 16"x25ft
Features
- EXTREMELY EFFECTIVE - Reflect 95% of radiant energy, perfect RADIANT BARRIER!
- VAPOR BARRIER -Unaffected by humidity and moisture, can be used outdoor/indoor!
- SOUND BARRIER - excellent sound deadening material, effectively blocking sound waves.
- SUPREME QUALITY - 3mm closed cell polyethylene FOAM (not a cheap bubbles) sandwiched between highly reflective Engineered Foil on both sides. Easy to install, easy to cut and easy to clean, Strong but lightweight.
- NON TOXIC - will not irritate skin, eye or throat. Non allergic.
Material: Polyethylene (PE)
Brand: INSULATION MARKETPLACE
Item Thickness: 3 Millimeters
Product Dimensions: 16"L x 300"W
Global Trade Identification Number: 22
Manufacturer: Insulation MarketPlace LLC
Part Number: SmartSHIELD -3mm
Item Weight: 12 ounces
Product Dimensions: 16 x 300 x 0.04 inches
Item model number: SmartSHIELD -3mm
Size: 16"x25ft
Coverage: Broad building insulation coverage
Batteries Included?: No
Batteries Required?: No
Date First Available: September 15, 2018
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 24" x 50ft
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.
...
show more
Reviewed in the United States on February 6, 2021 by Chris Higgins
Size: 24"x25ft
Why did you pick this product vs others?: This seemed like a good thickness and easy to cut to size. I am happy with how easy it was to place in my windows. I cut then made a tunnel at one end by folding over and taping it down. A tension rod slid through tunnel and holds in place where the sun sets. Helps my room not be quite as hot. They are easily removed to let light in. Also good for blocking some cold during winter. Other use was to cut a length to wrap around a large plant pot for winter. Helped insulate plant roots and keep from too much cold damage. Ease of use: Very easy to cut to size
...
show more
Reviewed in the United States on July 14, 2025 by Len
Size: 24" x 10ft
I purchased 3 rolls of this insulation for my motorhome windows. I've moved up into the mountains and dreading what the cold weather will be like this winter. haha! I have large windows and wanted them completely covered. I was pleased that this material is very easy to cut to the size needed. I just used a normal pair of kitchen scissors. To my surprise, I can already tell a difference from the outside heat as far as the window without the insulation and the window with the insulation. I did have an issue getting it to stick to the surface and thankfully the seller reached out to me. I'm always impressed when a seller is that involved and wants to either fix it, make it right and / or give advice. Those are the ones I look to purchase from in the future. I recommend this item if you need to reduce your electric bill or propane consumption during extreme hot weather or frosty cold weather. The product is good and the seller is as well. Buying from them is a win-win. 10 stars!!!
...
show more
Reviewed in the United States on July 22, 2025 by Kountry Aire Life
Size: 48" x 10ft
Just put this up in my window yesterday. The sun hits my window with a vengeance in the morning, as my house faces east. Seems to work really well, I noticed how much cooler my living room is right off the bat. But one thing I can do without is the smell of heated metal. It literally smells like something is going to catch on fire. Hopefully it wears off after awhile or I’m going to have to replace it.
...
show more
Reviewed in the United States on May 26, 2025 by Tiffany
Size: 48" x 10ft
It works great during winter and summer. Keeps my room at a good temperature. Took it off after a few months and can definitely tell the difference. I’m putting it back on my bedroom window.
Reviewed in the United States on August 21, 2025 by Liz Beth
Size: 16"x10ft
I bought this to make window sunscreens for my Subaru Outback. I did this with my 1995 Jeep Grand Cherokee, and when I recently sold it, the interior was PERFECT -- no bleaching from the sun. The material was super easy to cut, and cutting it a bit oversize allowed me to just press them securely into place on all 4 side windows. (I have an umbrella sunshade for the windshield.) I used aluminum tape all around the edges to create a border for sturdiness...well worth it. It also darkens the interior of the car, so you could car-camp and block out light. I'm very pleased with the quality, the light weight, and easy removal.
...
show more
Reviewed in the United States on August 3, 2025 by evfancy