1. Chair of Building Physics, Department of Mechanical and Process Engineering, ETH Zurich, 8093 Zurich, Switzerland
2. Laboratory for Multiscale Studies in Building Physics, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, Switzerland
3. Department of Physics, University of Nevada, Reno, 1664 N. Virginia Street, Reno, Nevada 89557, United States
4. Department of Civil and Environmental Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3109, United States
5. CNRS, LIPhy, Université Grenoble Alpes, 38000 Grenoble, France