LX Hausys heat-blocking advertising film wins energy-saving award

As a prolonged heat wave intensifies interest in cooling energy-saving technology, LX Hausys' heat-blocking advertising film has earned recognition for its energy efficiency.

LX Hausys announced Tuesday that the film won the Energy Saving Award at the 29th Annual Energy Winner Awards. The awards, held annually since 1997, recognize technologies and products with outstanding energy efficiency. The ceremony is organized by the Consumers' Civil Action Group and sponsored by the Ministry of Climate, Environment and Energy and the Korea Energy Agency.

The award-winning film is a white exterior finishing material applied to building facades, rooftops and windows. It reflects near-infrared radiation — the primary driver of heat generation in sunlight — to suppress temperature rises on exterior surfaces and indoors.

LX Hausys differentiated the product from conventional advertising films by incorporating its own heat-blocking technology using specialized pigments. Standard advertising films focus solely on display functions, while the heat-blocking version is designed to also reduce cooling energy consumption, improving a building's overall energy efficiency.

Performance tests back up the claims. According to LX Hausys, the film reduced the solar heat gain coefficient — the proportion of solar heat entering a building — by 47% compared with standard white film. Its total solar energy rejection rate reached 90%.

The company also improved ease of installation. The film incorporates "Air Channel" technology on its backing, forming microscopic air passages that minimize bubble formation during application. This allows it to be applied without lifting on curved surfaces such as vehicle bodies and containers, as well as building walls and windows. The company said the film retains its heat-blocking performance even after multicolor printing, making it suitable for outdoor advertising materials.

As cooling energy reduction has emerged as a key challenge across industries, the range of applications for heat-shielding materials is expanding rapidly. Once limited mainly to building walls and rooftops, the technology is increasingly being adopted in cold-chain facilities including fresh-food logistics centers, refrigerated and frozen trucks, and shipping containers. The material is drawing attention as an energy-efficient building product capable of lowering electricity consumption and reducing greenhouse gas emissions by improving cooling efficiency.

"Winning the Energy Saving Award demonstrates the outstanding solar heat-blocking performance of our heat-blocking advertising film," an LX Hausys official said. "We expect it to be widely adopted not only in buildings but also in cold-chain facilities where maintaining indoor temperatures in summer is essential — including fresh-food retail stores and refrigerated and frozen trucks."