Recently, interest in OSC(Off Site Construction) is increasing due to the trend of a decrease in skilled workers and an increase in labor costs. In this regard, PC(Precast Concrete) is being reviewed for apartments, the most common type of housing in Korea. As the biggest concern for PC apartment houses, civil complaints such as inter-floor noise and leakage were presented. In this study, the details of the joints were reviewed based on the past cases of PC apartments, and the details of the recently constructed or planned PC apartments were investigated. Through this, the leakage path in the past was analyzed through the existing research literature and data. And wall type RC and PC apartment joint leakage test was performed and we found the needs for a detail of waterproof steps, sealant. Also, joint details were investigated for a rahmen type apartment housing under construction. At last, A discussion was conducted on the direction for a detailed proposal of an improved joint in the future.

Abstract
1. 서론
2. 기존 PC 아파트 접합부 상세
    2.1 90년대 PC 아파트 접합부 사례
    2.2 해외 PC 아파트 접합부 사례
3. PC 아파트 하자조사 사례
4. 최근 아파트 접합부 상세비교
    4.1 벽식 아파트 접합부 누수 가능성 평가
    4.3 라멘조 아파트 접합부 마감상세 비교
4. 결론
References

• 김태호(디엘이앤씨(주) 건축기술지원팀) | Kim Tae-Ho (Housing & Building Engineering Support Team)
• 고효진(디엘이앤씨(주) 건축기술지원팀) | Ko Hyo-Jin (Housing & Building Engineering Support Team)