HDC Hyundai Development Company said on the 12th that its integrated solar-control film variable-performance window technology has received Green Technology Certification (GT-25-02423) from the Korea Institute for Advancement of Technology under the Ministry of Trade, Industry and Energy.
This technology is the result of joint research and development by HDC Hyundai Development Company, Hyundai Engineering, Eagon Windows & Doors, and DAEJIN. HDC Hyundai Development Company will first apply the technology to actual apartment housing and asset management business sites to verify its energy-saving effect and carbon reduction performance, and then expand it as a core technology for Zero Energy Building (ZEB) certification.
The technology is a system window with a high-performance solar-control film (sunshade) built into the window frame, which the company said can keep indoor temperatures comfortable without installing separate blinds. The film is made of transparent PET (polyethylene terephthalate), allowing interior-to-exterior views while blocking external lines of sight for privacy protection, and it is also thin.
The film consists of a two-layer structure of transparent PET fabric with a thickness of 20–50 μm, and between the PET (polyethylene terephthalate) layers are a metal reflective layer that reflects solar energy and a nano-ceramic heat-blocking layer. Applying this technology achieves a solar heat gain coefficient (SHGC) of 0.11 and a U-value of 0.691 W/㎡·K, which exceeds the Green Technology Certification standard (0.9 W/㎡·K). Experiments showed annual energy savings of about 72.5 kWh and carbon dioxide reduction of 34.4 kg per 1 ㎡ of window.
An HDC Hyundai Development Company official said, "In step with green architecture and the zero-energy era, it is important to minimize a building's energy consumption and create an efficient residential environment."
HDC Hyundai Development Company will first apply this technology to community facilities in apartment complexes, verify actual energy-saving data, and then expand it as a technology for Zero Energy Building (ZEB) certification. It also plans to strengthen the development of high-efficiency residential technologies by combining eco-friendly building materials with smart equipment technologies, while continuously expanding ESG-based technology investments.