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Yanggu, South Korea

Lee H.-Y.,Goyangdae Ro | Kim Y.,Goyangdae Ro | Lee Y.-J.,BEL Technology | Choi G.-S.,Goyangdae Ro | Kang J.-S.,Goyangdae Ro
Applied Mechanics and Materials | Year: 2014

The heat loss through the envelope accounts for the largest portion of the energy consumption in a building. It takes up more than 40% of the total heating and cooling energy. Therefore, a high performance insulation envelope technology that is 80% more energy efficient than the existing systems should be the basis of passive house construction. This study aims to improve the detailed design for efficient application of sandwich insulation system. And finally, an optimal sandwich insulation detail was selected. © (2014) Trans Tech Publications, Switzerland. Source


Kim Y.,Goyangdae Ro | Lee H.-Y.,Goyangdae Ro | Lee Y.-J.,BEL Technology | Choi G.-S.,Goyangdae Ro | Kang J.-S.,Goyangdae Ro
Applied Mechanics and Materials | Year: 2014

It is essential to eliminate heat loss through the building envelope to reduce the energy consumption in buildings. However a significant loss of heating energy caused by thermal bridge between slab and external wall in internal insulation systems which were applied in the most apartments in Korea. To improve the performance of envelope, a sandwich insulation system was proposed. This paper evaluates the thermal performance, energy performance and economic efficiency of sandwich insulation system by comparing with internal insulation system. When the sandwich insulation system was applied, heating energy consumption was reduced by 17.8% compared with internal insulation system. © (2014) Trans Tech Publications, Switzerland. Source


Kim Y.M.,Korea Institute of Civil Engineering | Lee Y.J.,BEL Technology | Choi G.S.,Korea Institute of Civil Engineering | Kang J.S.,Korea Institute of Civil Engineering
Materials Research Innovations | Year: 2015

Highly insulated envelope or external insulation systems are being applied in recent energy saving buildings to reduce the heat loss through envelope. Internal insulation systems are applied to most apartments in Korea because they are inexpensive and convenient to construct. However, the internal insulation systems have poor performance because of the heat bridges through structures such as slabs. The external insulation systems have better thermal performance because the heat bridges through the structure are rarely formed. However, it has problems regarding the external insulator separation because of strong winds, spread of fire because of insulator combustion in case of fire, formation of heat bridges through the connectors between structure and external insulation. In this study, the thermal performance of the sandwich insulation system for apartment buildings was evaluated according to the shear connectors and insulation materials. © W. S. Maney & Son Ltd 2015. Source


Cho S.H.,Korea Institute of Construction Technology | Lee H.Y.,Korea Institute of Construction Technology | Kang J.S.,Korea Institute of Construction Technology | Lee Y.J.,BEL Technology | Choi G.S.,Korea Institute of Construction Technology
Materials Research Innovations | Year: 2015

Thermal insulation plays a significant role in increasing building energy saving and creating comfortable indoor environment by reduction of heat transfer between indoor and outdoor environments. This study aims to investigate the insulation performance of the external insulation system applied in remodelling apartment buildings using the equivalent U-value. The results of this study indicate that thermal performance achieved by the external insulation system was improved and panel approach system is more excellent than flame-retardant polyurethane foam. The results of this study indicate that the external insulation system was investigated in this study, and the result confirms that the application of the external insulation system in remodelling apartment buildings will contribute to energy conservation. The above-mentioned results imply that external insulation system applied in remodelling apartment buildings can significantly contribute to the improvement in energy-efficient of buildings. © W. S. Maney & Son Ltd 2015. Source


Kim Y.,Korea Institute of Construction Technology | Lee Y.J.,BEL Technology | Choi G.-S.,Korea Institute of Construction Technology | Kang J.-S.,Korea Institute of Construction Technology
Advanced Materials Research | Year: 2013

Highly insulated envelope or external insulation systems are being applied in recent energy saving buildings to reduce the heat loss through envelope. Internal insulation systems are applied to most apartments in Korea because they are inexpensive and convenient to construct. However, the internal insulation systems have poor performance due to the heat bridges through structures such as slabs. The external insulation systems have better thermal performance because the heat bridges through the structure are rarely formed. But it has problems regarding the external insulator separation due to strong winds, spread of fire due to insulator combustion in case of fire, formation of heat bridges through the connectors between structure and external insulation. To supplement the weaknesses of the internal and the external insulation systems, a sandwich insulation system has been suggested. In this study, the thermal performance of sandwich insulation system for apartment buildings was evaluated according to two type of the form-tie material. © (2013) Trans Tech Publications, Switzerland. Source

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