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Analysis of Hygrothermal Performance of Wood Frame Walls according to Position of Insulation and Climate Conditions
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Analysis of Hygrothermal Performance of Wood Frame Walls according to Position of Insulation and Climate Conditions
Kang, Yujin; Chang, Seong Jin; Kim, Sumin;
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The insulation of a building envelope influences the hygrothermal performance as well as the thermal performance of the building. While most of Korean wood frame houses have an interior insulation system, the exterior insulation system with high thermal performance has recently been applied. While it can be effective in energy savings for better insulation performance, without consideration of the moisture, condensation and mould growth can occur. Therefore, in this study, hygrothermal behaviour, water content, and mould growth were analyzed using hygrothermal simulation of an exterior wall of a wood frame house with which the interior insulation and exterior insulation systems were applied. The wall layer included Wall A (Interior insulation) and Wall B (Exterior insulation). The U-values were identified as 0.173 and , respectively. The total water content and OSB absolute water content of Wall A were confirmed to be higher than those of Wall B, but the absolute water content did not exceed the reference value of 20%. The moisture content of the two walls was determined to be stable in the selected areas. However, mould growth risk analysis confirmed that both Wall A and Wall B were at risk of mould growth. It was confirmed that as the indoor setting temperature decreased, the mould index and growth rate in the same area increased. Therefore, the mould growth risk was affected more by indoor and outdoor climate conditions than by the position of the insulation. Consequently, the thermal performance of Wall B was superior to that of Wall A but the hygrothermal performances were confirmed to be similar.
hygrothermal performance;wood frame walls;WUFI simulation;climate conditions;position of insulation;
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Budaiwi, I., Abdou, A. 2013. The impact of thermal conductivity change of moist fibrous insulation on energy performance of buildings under hot-humid conditions, Energy and Buildings 60: 388-399. crossref(new window)

Fedorik, F., Malaska, M., Hannila, R., Haapala, A. 2015. Improving the thermal performance of concrete-sandwich envelopes in relation to the moisture behaviour of building structures in boreal conditions, Energy and Buildings 107: 226-233. crossref(new window)


Kim, S., Yu, S., Seo, J., Kim, S. 2013. Thermal Performance of Wooden Building Envelope by Thermal Conductivity of Structural Members, Journal of the Korean Wood Science and Technology 41(6): 515-527. crossref(new window)

Kuenzel, H. M., Holm, A. 1999. Practical assessment of plasters by modern building physical assessment, WTA series of publications.

Kwon, Y-C. 2012. High-Efficiency Insulation for Passive Houses, Proceedings of the SAREK 2012 Winter Annual Conference, 326-333.

Mudarri, D., Fisk, W. J. 2007. Public health and economic impact of dampness and mold, International Journal of Indoor Environment and Health 17(3): 226-235.

Ojanen, T., Airaksinen, M. 2015. Moisture performance of energy efficient buildings, Proc. of 7th Passivhus Norden conference Sustainable Cities and Buildings, pp. 1-8.

Pasztory, Z., Peralta, P. N., Molnar, S., Peszlen, I. 2012. Modeling the hygrothermal performance of selected North American and comparable European wood-frame house walls, Energy and Buildings 49: 142-147. crossref(new window)

Richardson, G., Eick, S., Jones, R. 2005. How is the indoor environment related to asthma?: literature review, Journal of Advanced Nursing 52(3): 328-339. crossref(new window)

Winistorfer, P., Chen, Z., Lippke, B., Stevens, N. 2005. Energy consumption and greenhouse gas emissions related to the use, maintenance, and disposal of a residential structure, Wood and Fiber Science: 128-139.

Yu, S-G., Kim, S., Seo, J., Kim, S. 2013. Analysis of Energy Efficiency of Light-Weigh Wood Frame House and Wooden Passive House Using PHPP, Journal of the Architectural Institute of Korea 29(8): 199-207.