Open AccessA Subambient Open Roof Surface under the Mid‐Summer Sun
Author(s) -
Gentle Angus R.,
Smith Geoff B.
Publication year - 2015
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201500119
Subject(s) - roof , environmental science , surface (topology) , engineering , civil engineering , geometry , mathematics
A novel material open to warm air stays below ambient temperature under maximum solar intensities of mid‐summer. It is found to be 11 °C cooler than a commercial white cool roof nearby. A combination of specially chosen polymers and a silver thin film yields values near 100% for both solar reflectance, and thermal emittance at infrared wavelengths from 7.9 to 13 μm.