A radiant barrier and thermal insulator often takes the form of a metallized plastic film laminated to a supporting material like polyethylene bubbles or foam. This construction is frequently employed in applications where minimizing heat transfer through radiation is paramount. For example, it is used to maintain temperature in shipping perishable goods or insulating structures.
The material’s effectiveness stems from its high reflectivity, which significantly reduces radiative heat gain or loss. Historically, this approach to thermal management has been valuable in aerospace, and its usage has broadened to include building construction and packaging. Its lightweight nature and ease of installation are additional advantages contributing to its widespread adoption.