10 Best Foil Reflective Insulations 2025 in the United States

The INSULATION MARKETPLACE SmartSHIELD -3mm 48inx25ft ReflectiveINSULATION roll offers several notable strengths. It excels in reflectivity, capable of reflecting 95% of radiant energy, making it an effective radiant barrier. The closed-cell polyethylene foam core enhances its durability and quality, avoiding the use of cheaper bubble materials.

With a thickness of 3mm, it is lightweight and easy to handle, which simplifies installation. Additionally, it serves as a vapor barrier and sound deadening material, unaffected by humidity and moisture. This makes it suitable for both indoor and outdoor use in various applications, like steel buildings, roofing, crawl spaces, and more. It's non-toxic and non-allergic, ensuring safety during installation and use.

The 3mm thickness might also be a limitation in scenarios where higher insulation values are required.

The AGHITG Reflective Insulation Foam is a lightweight, easy-to-handle roll designed for window insulation, especially suited for summer heat reduction and some winter insulation. Its double-sided aluminum foil combined with an air bubble layer offers good reflectivity, helping to block UV rays and reduce heat transfer, which can keep your home or RV cooler in hot weather and provide moderate insulation during colder months.

The 0.12-inch thickness is typical for bubble insulation rolls, providing a balance between flexibility and some thermal resistance, although it won’t match thicker foam board insulations in R-value. Installation is straightforward thanks to the adhesive backing, making it convenient for DIY use on windows or other surfaces like attics and garage doors. While the product is durable enough for indoor use, the thin bubble layer means it may not hold up well under heavy wear or moisture exposure over time.

This insulation roll is a practical, budget-friendly choice for reducing heat through windows and improving comfort in RVs or homes, especially if you want an easy-to-install reflective barrier rather than heavy-duty insulation.