1. ILC 2015 - final report 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 at the deadline in January slowed down analysis
Report is ready to share in time for the fall meeting

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

4. Overview – monolithic glass
Dashed lines are the absolute ±0.01 tolerance
Dotted marks two stdevs

5. Overview - reflective coating
Dashed lines are the absolute ±0.02 tolerance
Dotted marks two stdevs

6. Emissivity of Low-e coating
Dashed lines are the absolute ±0.02 tolerance
Dotted marks two stdevs

7. Conclusion and next steps
Fewer problems than in 2011
Make report available for NFRC members, possibly in the same place as this presentation
Publish as LBNL report
Start thinking about ILC 2019