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Insulation Performance Evaluation of Metal-Exterior Curtain Wall Panel Systems for Reducing Thermal Bridges through Mock-up Test in Winter
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 Title & Authors
Insulation Performance Evaluation of Metal-Exterior Curtain Wall Panel Systems for Reducing Thermal Bridges through Mock-up Test in Winter
Song, Jin-Hee; Lim, Jae-Han; Song, Seung-Yeong;
 
 Abstract
A building envelope has various thermal bridges such as construction junctions, joints for connecting building elements, and fixing units. These thermal bridges cause additional heat loss, so the overall insulation performance of the building envelope may decrease. Especially, thermal bridges in the metal-exterior curtain wall panel system significantly influence on the insulation performance according to existing researches. Therefore, thermal bridges should be reduced in order to ensure a high insulation performance. The aim of this study was to evaluate and compare the overall insulation performance of the existing metal-exterior curtain wall panel system and its alternative for reducing thermal bridges by the mock-up test in winter. Infrared thermal images were taken, and internal and external surface temperatures, temperature differences between center and thermal bridge parts, and air temperatures of cavities were measured and analyzed. As results, the heat loss through thermal bridges was significantly reduced in the alternative.
 Keywords
Thermal Bridges;Insulation Performance;Metal-Exterior Curtain Wall;Panel System;Mock-up Test;
 Language
Korean
 Cited by
 References
1.
Koo, B., Lim, J., & Song, S. (2011). Current Status and Improvement Schemes of Regulations Related to Thermal Bridges in Residential Buildings. Autumn Proceeding of the Architectural Institute of Korea, 31(2), 461-462.

2.
Koo, S., Ku, H., Yeo, M., & Kim, K. (2008). Thermal Bridging Impact on the Thermal Performance of Curtain Walls. Journal of Korean Institute of Architectural Sustainable Environment and Building System, 2(4), 1-7.

3.
Park, M., Song, J., Park, S., Lim, J., & Song, S. (2014) Influence of thermal bridging effects on the insulation performance of outer walls covered with metal panels and stones. Spring Proceeding of the Architectural Institute of Korea, 34(1), 179-180.

4.
Seok, H., Jung, J., Kwak, H., & Song, S. (2006). A Study on the Heat Transmission Performance of Stone Finished Curtain Wall System through the Mock-up Test. Journal of the Architectural Institute of Korea, Planning and Design Section, 22(8), 259-266.

5.
Song, J., Park, M., Lim, J., & Song, S. (2015). Energy, Condensation Risk and Constructability Evaluation of Metal-Exterior Curtain Wall Panel Systems for Reducing Heat Loss through Thermal Bridges. Journal of the Architectural Institute of Korea Planning and Design Section, 31(2), 283-293. crossref(new window)

6.
Song, S., Koo, B., & Lim, J. (2010). Comparison of Annual Heating and Cooling Energy Demands of Internally and Externally Insulated Apartment Buildings Considering the Thermal Bridging Effect and the Heat Capacity Difference Using Monthly Calculation Method of ISO 13790. Journal of the Architectural Institute of Korea, Planning and Design Section, 26(7), 321-332.