In this study, the types of thermal breakers applied to structures to prevent thermal bridges were identified. Condensation prevention performance was evaluated for apartment houses with standard floor structures to which a thermal breaker was applied. In addition, the effect of thermal cross-blocking was compared by calculating the total heat and equivalent U-value through the wall. (1) As a result of the evaluation of anti-condensation performance, when “가” grade insulation was applied, the surface temperature increased by about 1K due to the application of the thermal breaker. The TDR value increased by about 0.06 to 0.07. When "나" grade insulation was applied, the minimum surface temperature increased by about 1K, and the TDR value increased by about 0.05~0.06. (2) As a result of the evaluation of total heat and U-equivalent, it was possible to reduce the total heat by 38.5~44.9% and U-equivalent by 38.5~45.0% for the "가" grade insulation to which the thermal breaker was applied. In addition, the "나" grade insulation to which the thermal breaker was applied can reduce total heat by 38.9 to 43.6%, and reduce the Uequivalent by 38.9 to 43.7%.

1. 서 론
2. 기존 문헌 고찰
3. 연구방법
    3.1 열교차단재의 종류
    3.2 평가 방법 개요
4. 결 과
    4.1 결로방지성능 평가
    4.2 전열량 및 상당열관류율 평가
5. 결 론

• 구보경(한국건설기술연구원 건축에너지연구소) | Bokyoung Koo (Department of Building Energy Research, Korea Institute of Civil Engineering and Building Technology)
• 정진우(한국건설기술연구원 건축에너지연구소) | Jinwoo Jeong (Department of Building Energy Research, Korea Institute of Civil Engineering and Building Technology) Corresponding author