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What Are Radiant Barriers Made Of?

April 25, 2024

Radiant barriers stand out as a pivotal innovation in energy efficiency, significantly reducing cooling costs and enhancing indoor comfort. A common question among homeowners considering this technology is: What exactly are radiant barriers made of? While various materials can be utilized, their effectiveness and durability vary greatly. At Green Energy of San Antonio, we use aluminum for our radiant barrier installations. Although it’s the most commonly used material, it’s still the superior choice for radiant barriers in Texas due to its cost-effectiveness and durability. Keep reading to learn why and how it compares to foreign-made radiant barriers.

The Composition of Radiant Barriers

Radiant barriers are designed to reflect thermal energy, keeping homes cooler in the scorching summer months. The most effective barriers are made from materials with highly reflective surfaces, with aluminum being the primary option. But not all aluminum is created equal. When comparing aluminum radiant barriers created in the United States against those made in other countries, there are crucial differences in their effectiveness and durability.

Radiant Barriers Made in the U.S. vs Other Countries: A Comparative Look


Aluminum radiant barriers boast a 97% reflectivity rate. However, radiant barriers made in countries like China aren’t made with the same climate in mind. The type of aluminum isn’t as strong against consistently high temperatures, preventing it from blocking the same amount of heat. High-quality aluminum significantly improves the overall efficiency of a home’s cooling system, especially in areas subjected to intense sunlight.

Corrosion and Oxidation Resistance

Aluminum is a reactive metal that can corrode and oxidize when consistently exposed to water and high humidity. However, manufacturers have developed solutions to minimize corrosion and prevent degradation, so it retains its reflective properties and overall effectiveness for much longer than before. Unfortunately, foreign-made aluminum typically isn’t made to last, so it oxidizes and peels off, especially in humid climates like San Antonio and the surrounding South Texas heat.

Long-Term Durability

Not all companies are transparent about where they acquire their materials, leaving homeowners unaware when they purchase a low-quality, foreign-made radiant barrier. Texas homeowners need high-quality materials built in the USA to maintain their reflective properties and structural integrity against the Texas heat. The durability of our aluminum radiant barriers translates to sustained energy savings and protection against heat gain over the years.

Why Green Energy of San Antonio Uses Aluminum 

At Green Energy of San Antonio, we are committed to providing our customers with the most efficient and long-lasting solutions, which is why we use aluminum for our radiant barrier installations. Investing in a high-quality aluminum radiant barrier with the Texas climate in mind guarantees the highest reflectivity, superior resistance to environmental factors, and prolonged durability. By opting for aluminum made in the USA, we ensure that our customers benefit from an energy-saving solution that stands the test of time, even in the challenging weather conditions of San Antonio.

For Radiant Barrier Installation, Choose Green Energy of San Antonio

When selecting the best material for radiant barriers, the choice is clear. Aluminum is reflective and durable, keeping your home at a comfortable temperature year-round. At Green Energy of San Antonio, we proudly offer high-quality aluminum radiant barrier installations, providing our clients with a top-tier solution to keep their homes cool and comfortable. By choosing Green Energy, you're investing in the longevity of your home's energy efficiency and a future of sustainable living. Contact us today to learn more about how a radiant barrier can benefit your home.