Abstract—In this research, the thermal insulation performance of a public building’s outer walls in which the same finishing materials were used was measured in the field, taking into account their elapsed year. Based on the measurement results, the degradation rate of thermal insulation according to the outer walls’ age was analyzed and the thermal insulation degradation curve was derived. As results of the research, the outer walls’ U-value decreases over time by up to 69.74% compared to the annual reference U-value, which indicates the degradation of thermal insulation performance causes the aging of the outer walls. Based on the field measurement data, this research then derived the thermal insulation degradation curve according to the outer walls’ age. Under the current circumstances where improving the thermal insulation performance is increasingly considered as an effective solution of reducing energy for the existing buildings. This research is significant in that it quantitatively derives degradation data of the thermal insulation performance depending on the actual outer walls’ elapsed years.

 

Index Terms—thermal insulation, U-Value, field measurement, outer walls, public buildings, heat flow meter method

Cite: Seung-Hee Ryu, Ji-Hye Ryu, and Won-Hwa Hong, "Field Measurement and Degradation Rate Analysis of Thermal Insulation Performance by Elapsed Year of Public Building Outer Walls in Korea," International Journal of Structural and Civil Engineering Research, Vol. 5, No. 1, pp. 1-4, February 2016. doi: 10.18178/ijscer.5.1.1-4