Spectrally Selective Low-e Glazing and Films

Spectrally selective low-emittance coatings on glass or films permit most of the visible solar radiation to be transmitted while blocking the near-infrared. The result is a clear appearance with the solar control performance of a dark tinted or reflective glass of the 1980s. The potential for daylighting a building with this type of glass or film is significantly better than prior options. Spectrally selective glazings were introduced to the market in the 1990s and are now the status quo for most commercial and residential buildings. Industry continues to improve the performance of these coatings, making them more transparent, colorless, and durable at lower cost. LBNL material scientists collaborated with industry to improve the performance of the glass coatings and promoted adoption of spectrally-selective glazings with data and tools.