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Evaluation Research on Energy-Saving Retrofitting of Roofs of Traditional Wood-Structured Dwellings Based on the Continuation of Historical Features: A Case Study of Guangdu Village No. 280 Dwelling in Zhejiang

Author

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  • Zhuoxun Mao

    (College of Landscape and Architecture, Zhejiang A&F University, Hangzhou 311300, China)

  • Xiaoxiao Rao

    (College of Landscape and Architecture, Zhejiang A&F University, Hangzhou 311300, China
    Zhejiang Province Key Think Tank, Institute of Ecological Civilization, Zhejiang A&F University, Hangzhou 311300, China)

  • Feng Qi

    (College of Landscape and Architecture, Zhejiang A&F University, Hangzhou 311300, China)

Abstract

China has numerous traditional wooden dwellings located in regions with hot summers and cold winters. The historic dwellings lack proper thermal insulation and have excessive energy consumption in the building structure, failing to suit the needs of modern people. Hence, it is crucial to enhance their energy efficiency through essential actions. Roofs, being the fifth side of the building envelope, are frequently neglected when it comes to enhancing their insulating capabilities. The study aimed to implement energy-efficient roof alterations while preserving the historical features of traditional structures. This study focuses on enhancing the energy efficiency of a traditional wood-structured dwelling in Guangdu Village, Zhejiang Province, China, by installing composite thermal insulation panels on the interior of the roof using an easy restoration approach. The actual risk of condensation and the impact of retrofit processes on historical features determine the choice and limitations of energy-saving retrofit materials and methods. This study evaluates the transformation using two indicators: energy efficiency and economic feasibility. The numerical simulation results indicate that traditional dwellings have an annual energy savings rate of 16.66% and an investment payback period of 7.25 years. This study demonstrates the feasibility of energy-saving roof renovation measures for these traditional wood-structured dwellings. The measures improve energy efficiency and are affordable for residents. This study can offer technical suggestions for enhancing the energy efficiency of traditional wood-structured dwellings.

Suggested Citation

  • Zhuoxun Mao & Xiaoxiao Rao & Feng Qi, 2024. "Evaluation Research on Energy-Saving Retrofitting of Roofs of Traditional Wood-Structured Dwellings Based on the Continuation of Historical Features: A Case Study of Guangdu Village No. 280 Dwelling i," Sustainability, MDPI, vol. 16(6), pages 1-20, March.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:6:p:2236-:d:1352877
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    References listed on IDEAS

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