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논문 기본 정보

자료유형
학술저널
저자정보
김민주 (한국패시브건축협회) 류현진 (한국패시브건축협회) 김석환 (한국패시브건축협회)
저널정보
대한건축학회 대한건축학회논문집 大韓建築學會論文集 第41卷 第3號(通卷 第437號)
발행연도
2025.3
수록면
269 - 280 (12page)

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Lightweight wood frame constructions have been being built in Korea with increasing demand for eco-friendly, low-carbon buildings. A vapor barrier in these constructions are essential for protecting from wood decay ensuring durability. However, definition of vapor barrier and waterproof vapor permeable membrane are often conflated, so it results in many moisture problems in the constructions. This study evaluates the moisture stability of a standard configuration of lightwood frame construction across Korean climates, specifically Daegwallyeong, Seoul, Busan, and Jeju, using eight types of materials approved as vapor barrier in Energy Conservation in Buildings. Five evaluation criteria of DIN 4108-3 were used. In terms of total moisture content, equilibrium within 10 years was achieved in all configurations and locations. Short-term OSB decay was found in a year when vapor barriers with low Sd-values (≤1.3 m in Daegwallyeong, ≤0.3 m in Seoul) used, and when non-vapor barrier was used in Busan and Jeju. Long-term OSB decay evaluation indicats that vapor barriers with Sd ≤ 0.3 m are unsuitable in all climates, while the ZIP System®(Sd = 2.5 m) is inadequate for Daegwallyeong. Interstitial condensation on the insulation layer was found in Daegwallyeong and Seoul with the vapor barrier of Sd ≤ 0.3 m in winter. The possibility of mould growth increases across all climates if a vapor barrier with an Sd-value of 0.3 m or lower is applied. It was observed even with vapor barrier having Sd-values of up to 2.5 m in Daegwallyeong. Thermal transmittance shows no decline over the ten years. Moisture problems in lightweight wood frame constructions were found in Daegwallyeong due to the vapor barriers with Sd-values of 2.5 m or below. For Seoul, Busan and Jeju, no moisture problems were found if vapor barriers with Sd-values of 1.3 m or higher were applied. However, as this study focused only on the current vapor barrier standards, a further detailed study is required for the range of Sd-value from 0.5 m to 10 m. Additionally, for lightweight wood-frame constructions with rainscreen applications, it is critical to establish vapor barrier performance standards adapted to each climate zone in Korea.

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Abstract
1. 서론
2. 연구 방법
3. 결과
4. 결론
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