Analysis of Hygrothermal Stability of Lightweight Wooden Structure with External Insulation

So-Min Lee; Jeong-Hun Lee

doi:10.22696/jkiaebs.20240040

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2024 Vol.18, Issue 5 Preview Page

Research Article

Analysis of Hygrothermal Stability of Lightweight Wooden Structure with External Insulation 외단열 경량목구조 벽체의 Hygrothermal 안정성 분석

30 October 2024. pp. 478-489

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Abstract

To reduce energy consumption and enhance energy efficiency in buildings,Exterior insulation and finishing system (EIFS) that meet strengthened insulation standards are being increasingly applied. In lightweight wooden Structure, there is a growing trend of filling the spaces between the studs of 2x6 wood frames with glass wool and adding EPS as external insulation. Even with identical construction methods, defects may arise due to the climatic characteristics of the construction site. Therefore, the appropriate application of insulation materials that consider regional climate conditions is essential. Since wood is vulnerable to moisture, designing building envelopes that take climatic factors into account is essential. This study adjusts the Water vapor diffusion resistance coefficient of various insulation materials to propose material properties suitable for different regional climates and analyzes the risk of mold growth.

Keywords

Hygrothermal Performance

Water Vapour Diffusion Resistance

Lightweight Wooden Structure

Exterior Insulation and Finish System

Mould growth

키워드

습열거동

수증기확산 저항계수

경량목구조

외단열미장마감시스템

곰팡이 성장

References

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Lee, J.H., Kim, M.J., Park, J.I. (2021). Analysis of hygrothermal behavior of external insulated lightweight wooden structure considering water vapour diffusion resistance factor of insulation material. Journal of the Korea Institute of Ecological Architecture and Environment, 15(6), 685-695.

Yamankaradeniz, N., Bademlioglu, A.H., Kaynakli, O. (2018). The effect of water vapor diffusion resistance factor of insulation materials for outer walls on condensation. Journal of Thermal Science and Technology, 38(2), 15-23.

Kim, S.M., Chang, S.J. (2019). Moisture stability evaluation of CLT timber house walls considering domestic hygrothermal climate conditions. Proceedings of the Korean Society of Mechanical Engineers Conference, 2019(6), 350-351.

Künzel, H.M., Zirkelbach, D. (2008). Influence of rain water leakage on the hygrothermal performance of exterior insulation systems. Building Physics 2008 - 8th Nordic Symposium.

United Nation Environment Programme (UNEP). (2022). 2022 Global Status Report for Buildings and Construction.

Ministry of Government Legislation (MOLEG). (2018). Energy Saving Design Standard for Building, Ministry of Government Legislation Korean Law Information Center.

DIN 68800-2. (2012). Wood protection. DIN Standards.

ISO 15927-4. (2005). Hygrothermal performance of buildings - Calculation and presentation of climatic data - Part 4: Hourly data for assessing the annual energy use for heating and cooling.

Information

Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
Publisher(Ko) :한국건축친환경설비학회
Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
Journal Title(Ko) :한국건축친환경설비학회논문집
Volume : 18
No :5
Pages :478-489
Received Date : 2024-10-17
Revised Date : 2024-10-23
Accepted Date : 2024-10-27
DOI :https://doi.org/10.22696/jkiaebs.20240040

Journal of Korean Institute of Architectural Sustainable Environment and Building Systems ISSN:1976-6483(Print) 2586-0666(Online) 한국건축친환경설비학회논문집

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