--- product_id: 212991092 title: "SmartSHIELD -3mm 16inx50Ft ReflectiveINSULATION roll, Foam Core Radiant Barrier, ThermalINSULATION Shield - Engineered Foil" brand: "insulation marketplace" price: "S/.387" currency: PEN in_stock: true reviews_count: 13 category: "Insulation Marketplace" url: https://www.desertcart.pe/products/212991092-smartshield-3mm-16inx50ft-reflectiveinsulation-roll-foam-core-radiant-barrier-thermalinsulation store_origin: PE region: Peru --- # Vapor barrier blocks moisture & drafts 3mm thin, easy to cut & install 95% radiant energy reflection SmartSHIELD -3mm 16inx50Ft ReflectiveINSULATION roll, Foam Core Radiant Barrier, ThermalINSULATION Shield - Engineered Foil **Brand:** insulation marketplace **Price:** S/.387 **Availability:** ✅ In Stock ## Summary > 🛠️ SmartSHIELD: The sleek thermal armor your space deserves! ## Quick Answers - **What is this?** SmartSHIELD -3mm 16inx50Ft ReflectiveINSULATION roll, Foam Core Radiant Barrier, ThermalINSULATION Shield - Engineered Foil by insulation marketplace - **How much does it cost?** S/.387 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/212991092-smartshield-3mm-16inx50ft-reflectiveinsulation-roll-foam-core-radiant-barrier-thermalinsulation) ## Best For - insulation marketplace enthusiasts ## Why This Product - Trusted insulation marketplace brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lightweight & Durable:** Strong polyethylene foam core resists wear but stays easy to handle. - • **Built-in Vapor Barrier:** Stops condensation and drafts for a healthier, drier space. - • **Ultra-Thin 3mm Foam Core:** Sleek design fits tight spaces without bulk or hassle. - • **Non-Toxic & Hypoallergenic:** Safe for your home and family—no irritation, just comfort. - • **Reflects 95% of Radiant Heat:** Maximize energy efficiency with superior thermal reflection. ## Overview INSULATION MARKETPLACE SmartSHIELD is a 3mm thick reflective insulation roll featuring a closed-cell polyethylene foam core sandwiched between engineered foil layers. It reflects 95% of radiant heat, acts as a vapor barrier to prevent moisture and drafts, and is lightweight, easy to cut, and install. Ideal for improving energy efficiency and comfort in tight or draft-prone spaces, it’s non-toxic and hypoallergenic, making it a smart upgrade for modern homes. ## Description INSULATION MARKETPLACE SmartSHIELD -3mm 16inx50Ft ReflectiveINSULATION roll, Foam Core Radiant Barrier, ThermalINSULATION Shield - Engineered Foil - desertcart.com Review: Excellent performance and easy to install—raised basement area by 15 degrees F! - 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. Review: Better than expected - 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. ## Features - EXTREMELY EFFECTIVE - reflects 95% of radiant energy, perfect RADIANT BARRIER. - VAPOR BARRIER - prevent condensation, unaffected by humidity and moisture. - SAVE MONEY- effectively low the amount of heat transferred into the home in the summer an out of the home in the winter. Save big on your utility bill. - 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, strong but lightweight. - NON TOXIC - will not irritate skin, eye or throat. Non allergic. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0844H9JP9 | | Best Sellers Rank | #4,660 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Weatherproofing Window Insulation Kits | | Brand | INSULATION MARKETPLACE | | Brand Name | INSULATION MARKETPLACE | | Coverage | 50 feet | | Customer Reviews | 4.6 out of 5 stars 7,629 Reviews | | Item Dimensions L x W | 600"L x 16"W | | Item Thickness | 3 Millimeters | | Manufacturer | Insulation MarketPlace LLC | | Manufacturer Part Number | SmartSHIELD -3mm - Polyester | | Material | Polyethylene (PE) | | Material Type | Polyethylene (PE) | | Model Number | SmartSHIELD -3mm - Polyester | | Product Dimensions | 600"L x 16"W | | UPC | 686091709369 | ## Product Details - **Brand:** INSULATION MARKETPLACE - **Item Thickness:** 3 Millimeters - **Manufacturer:** Insulation MarketPlace LLC - **Material:** Polyethylene (PE) - **Product Dimensions:** 600"L x 16"W ## Images ![SmartSHIELD -3mm 16inx50Ft ReflectiveINSULATION roll, Foam Core Radiant Barrier, ThermalINSULATION Shield - Engineered Foil - Image 1](https://m.media-amazon.com/images/I/81SqrVG-RIS.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent performance and easy to install—raised basement area by 15 degrees F! *by C***S on February 6, 2021* 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. ### ⭐⭐⭐⭐⭐ Better than expected *by J***R on June 13, 2026* 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. ### ⭐⭐⭐⭐⭐ Good insulation *by K***K on July 3, 2026* Definitely worked to cover windows and keep the room cool ## Frequently Bought Together - INSULATION MARKETPLACE SmartSHIELD -3mm 16inx50Ft ReflectiveINSULATION roll, Foam Core Radiant Barrier, ThermalINSULATION Shield - Engineered Foil - Aluminum Foil Tape, 2 inch x 65 Feet (3.9 mil), Insulation Adhesive Metal High Temperature Heavy Duty HVAC Tape, Silver for Ductwork, Dryer Vent, HVAC - XFasten Transparent Window Weather Sealing Tape, 2-Inch x 30 Yards (50.8mm x 27.43m), Clear Window Draft Isolation Sealing Film Tape, No Residue --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pe/products/212991092-smartshield-3mm-16inx50ft-reflectiveinsulation-roll-foam-core-radiant-barrier-thermalinsulation](https://www.desertcart.pe/products/212991092-smartshield-3mm-16inx50ft-reflectiveinsulation-roll-foam-core-radiant-barrier-thermalinsulation) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-07-30*