{"product_id":"smartshield-3mm-24-in-x25-ft-reflective-foam-core-insulation","title":"SmartSHIELD -3mm 24 in x25 ft Reflective Foam Core Insulation","description":"\u003cp\u003eOur review of the SmartSHIELD roll finds it best suited for homeowners and DIYers who need a lightweight, easy-to-handle radiant barrier and general insulation layer. The single biggest reason to buy is its reflective capability: the product claims to reflect 95% of radiant energy, which translates into noticeable temperature stability in garages, attics, and behind walls when installed properly. The material is also a practical choice where a combined vapor and sound barrier is wanted, since the closed cell foam core resists moisture and helps deaden sound without irritating skin or eyes.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflective performance:\u003c\/strong\u003e The engineered foil on both faces reflects the majority of radiant heat, helping reduce heat gain and improve temperature control in enclosed spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVapor resistance:\u003c\/strong\u003e The closed cell polyethylene core and foil facing form a stable vapor barrier that is unaffected by humidity and can be used indoors or outdoors when installed correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound deadening:\u003c\/strong\u003e The 3mm foam core adds mass and damping that assists with reducing airborne noise and echo in garages or workspaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability and handling:\u003c\/strong\u003e The roll is strong yet lightweight, easy to cut to size and clean, making it practical for DIY trimming and installation over existing insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon toxic composition:\u003c\/strong\u003e The foam is non irritating and non allergic, so it can be installed without special respirators for short tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe SmartSHIELD roll is ideal for homeowners working on garage conversions, shed walls, attic hatch covers, or for lining ducts and hot water tank enclosures where radiant control and a moisture-resistant layer are useful. It is a good match for installers who prefer a lightweight, easily cut material that pairs well over fiberglass or between wall layers.\u003c\/p\u003e\n\u003cp\u003eThose who need thick thermal mass or maximum conductive insulation R-value should look elsewhere; this product excels as a radiant and vapor barrier and as supplemental insulation rather than a replacement for bulk cavity insulation in very cold climates.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReflects heat effectively, helping to stabilize interior temperatures in garages and attics.\u003c\/li\u003e\n\u003cli\u003eActs as a reliable vapor barrier that resists humidity and can be used in indoor and outdoor applications.\u003c\/li\u003e\n\u003cli\u003eEasy to cut and install, lightweight and strong for DIY projects.\u003c\/li\u003e\n\u003cli\u003eProvides measurable sound deadening compared with bare cavities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAt 3mm thickness it does not replace thicker bulk insulation for cold climate R-value needs.\u003c\/li\u003e\n\u003cli\u003eCustomers occasionally note thickness expectations, so confirm 3mm foam before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eSmartSHIELD reflective foam roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e3mm closed cell polyethylene foam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e24 in x 25 ft roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFacing\u003c\/td\u003e\n\u003ctd\u003eEngineered reflective foil on both sides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary functions\u003c\/td\u003e\n\u003ctd\u003eRadiant barrier, vapor barrier, sound deadening\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToxicity\u003c\/td\u003e\n\u003ctd\u003eNon toxic; non irritating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe SmartSHIELD 3mm reflective foam roll is a practical, value-minded choice for DIYers and homeowners who need a lightweight radiant and vapor barrier that also helps reduce noise. It is easy to cut and install, durable in humid conditions, and delivers good heat reflection for typical garage and attic projects, but it should be used as a complement to bulk insulation where higher R-value is required.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used outdoors?\u003c\/strong\u003e\u003cbr\u003eYes; the product is described as unaffected by humidity and suitable for outdoor or indoor use when properly protected from prolonged UV exposure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to cut and install?\u003c\/strong\u003e\u003cbr\u003eNo; customers report the foam is easy to cut to size and quick to handle for DIY installations with common tools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it replace fiberglass or foam board?\u003c\/strong\u003e\u003cbr\u003eIt works best as a radiant\/vapor layer over or alongside other insulation rather than replacing thicker cavity insulation for cold climates.\u003c\/p\u003e","brand":"INSULATION MARKETPLACE","offers":[{"title":"Default Title","offer_id":48602092765403,"sku":"B0831QSLD4","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81SqrVG-RIS._AC_SL1500.jpg?v=1778416862","url":"https:\/\/gearmusthave.com\/products\/smartshield-3mm-24-in-x25-ft-reflective-foam-core-insulation","provider":"GearMustHave","version":"1.0","type":"link"}