As the balcony expansion of residential building was legalized, the expansion generation is tend to increased continuously of existing residential building or condominium complex. But balcony is the service area. So, it is worried about defect occurrence of extension construction because thermal insulation effect is insufficient to balcony installed an aluminum sash. Therefore, it is desired the method to minimize the damage of performance improvement of the windows which has an influence directly on the performance defect. See-through a-si is effective to reduce the cooling loads and sunlight, to produce the electricity by installing a-si at the wall and windows of residential building. This paper has predicted producing electricity and have analyzed heating/cooling load based on balcony expansion and building-integrated PV installation in residential building.

• 서영석(단국대학교 대학원 건축공학과 박사과정) | Seo, Young-Seok
• 강태경(단국대학교 대학원 건축공학과 박사과정) | Kang, Tae-Kyung
• 오민석(단국대학교 대학원 건축공학과 석사과정) | Oh, Min-Seok Corresponding author
• 김회서(단국대학교 건축대학 건축공학과 연구교수, 공학박사) | Kim, Hway-Suh