ILC 2015 update – Spring 2016 Jacob C. Jonsson Windows and Envelope Materials Group Building Technology and Urban Systems Division

Participants 48 boxes sent out, mostly US but also Jordan, South Africa, Indonesia, China, Singapore, India, Belgium, Germany, Brazil, Australia, Netherlands, Japan, Korea, France, and Sweden Only 20 sets of result by January deadline, slowed down analysis

The hardest measurement Reflectance of low-e coatings is important and shows a few different errors New this year was grating alignment error Will report all lessons learned

Overview – monolithic glass Dashed lines are NFRC ±0.01 Dotted are 2 stdevs

Overview – Low-e Coating Dashed lines are (NFRC ±0.02) Dotted are 2 stdevs

Next step Report is almost ready for internal LBNL review over next couple weeks, should be published thereafter – won’t wait for next NFRC conference.