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

2. 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

3. 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

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

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

6. 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.