Duke University Fuqua School Window Film Pilot
11/4/2013 Several rooms had Huper Optik DREI film installed.
A laser thermometer was used to read temperatures under the treated and untreated windows.
A Solar Energy meter was used to measure total incident solar energy coming through the treated and untreated windows (BTU/HR * sq ft).
Carpet temp - untreated
Carpet temp - treated
Window Frame Temp - untreated
Window Frame Temp - treated
Total Solar Energy Reading, untreated window 123 BTU/HR * sq ft
Total Solar Energy Reading, treated window 12 BTU/HR * sq ft