Field Tests of 4 Types of Cool Roof System to Reduce Cooling Load

Abstract:

This is a report on the performance of 4 types of cool roof system through field tests. Cool roof means solar protection on roof surface [1]. The tested systems were solar cells as a shading device, several types of thermal insulation paint as heat reflectors, a rooftop garden as an outside thermal insulator on a roof and a water pond on a roof as a coolant with sensible heat and evaporation. The test results indicated obvious temperature difference between the cool roof and the ordinary surface. The heat flux was calculated from the results to estimate the cooling load saving. Finally, these results were examined from the viewpoint of cost performance.

• Periodical: Advanced Materials Research (Volumes 1008-1009)
• Pages: 1336-1342
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1008-1009.1336
• Online since: August 2014
• Authors: Yi Ling Li, Jun Ichiro Giorgos Tsutsumi, Ryo Nakamatsu
• Keywords: Cool Roof System, Cooling Load Saving, Cost Performance, Field Test, Heat Reflection Paint, Low Latitude, RC Structure, Roof Pond, Rooftop Garden, Solar Cell, Surface Temperature

References

[1] US EPA, http: /www. epa. gov/heatisland/mitigation/coolroofs. htm.

[2] Victor Olgyay: Design with Climate, Princeton University Press, (1963).

[3] Edward Mazria: The Passive Solar Energy Book, Rodale Press, (1979).