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On-Site Window Retrofit Benefits

  • 50% reduction in solar heat gain

  • Improvement of insulative center-of-glass R-value from R-2 to R-6
  • Increase of average winter glass temperature from 44°F to 59°F and decrease of average summer glass temperature from 95°F to 90°F
  • Improvement of UV blockage from current 47% to 99%

Building level benefits


  • $410,000 in annual energy savings

  • Contributes to $17.1 million in chiller plant capital cost savings

Other benefits


  • $127,250 of natural gas avoided by not manufacturing new glass
  • $39,000 in glass disposal fee savings