Windows and Envelope Materials

Windows and Envelope Materials

Windows and Envelope Materials researchers develop energy-efficient window systems, and studies advanced daylighting designs, which allow the use of natural light in place of electric lighting. Its research areas include:

  • advanced materials and coatings for windows
  • energy performance of window systems (such as windows, glazings, frames, and blinds)
  • computer tools to improve energy performance and aid product rating and labeling
  • daylighting strategies, including sensors that detect light levels and occupancy, and adjust electric lighting appropriately in response
  • cool-colored roofing materials to reduce urban heat islands and air conditioning energy use

Publications by Organization




Hoffmann, Sabine, and Eleanor S. Lee. "Potential energy savings with exterior shades in large office buildings and the impact of discomfort glare." In Fourth BEST Conference Building Enclosure Science & Technology (BEST4). Kansas City, Missouri, 2015. PDF (977.35 KB)


Thanachareonkit, Anothai, Eleanor S. Lee, and Andrew McNeil. "Empirical Assessment of a Prismatic Daylight-Redirecting Window Film in a Full-Scale Office Testbed." LEUKOS: The Journal of the Illuminating Engineering Society of North America 10, no. 1 (2014): 19-45. PDF (3.49 MB)