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Article

Overheating Risks and Adaptation Strategies of Energy Retrofitted Historic Buildings under the Impact of Climate Change: Case Studies in Alpine Region

1
Center of Urban and Rural Renewal, Built Heritage Conservation, Department of Architecture & Art Design, Hebei University of Technology, Tianjin 300131, China
2
Institute for Renewable Energy, Eurac Research, 39100 Bolzano, Italy
3
Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, 20133 Milano, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Luís G. Baltazar, Hugo Entradas Silva and Luísa Dias Pereira
Appl. Sci. 2022, 12(14), 7162; https://doi.org/10.3390/app12147162
Received: 30 April 2022 / Revised: 11 July 2022 / Accepted: 11 July 2022 / Published: 15 July 2022
(This article belongs to the Special Issue Hygrothermal Behaviour of Cultural Heritage and Climate Changes)
Energy retrofits can enhance the liveability and efficiency of historic buildings while preserving their historic and aesthetic values. However, measures like improved insulation and airtightness may increase their vulnerability to overheating and climate change may further worsen their performance in the future. This paper investigates indoor overheating risks brought by climate change in retrofitted historic buildings and proposes effective adaptation strategies. Firstly, local weather conditions are analysed to identify homogenous climatic zones. For each climatic zone, “a business-as-usual” emissions scenario is adopted, and most representative regional climate models are selected to obtain hourly output of future climate projection. A comparative study is adopted where typical alpine residential buildings, “Portici house”, are simulated with regard to future energy use and indoor thermal state using the dynamic model in EnergyPlus. Energy use and indoor thermal conditions are compared before and after energy retrofit, as well as under present and future climate conditions. The results demonstrate that retrofit interventions could significantly improve energy efficiency of historic buildings in both present and future scenarios. A change in climate together with retrofit interventions will, however, result in higher risk of indoor overheating in South Tyrol. Potential negative side effects of energy retrofit could be controlled by adopting adequate shading and ventilation approaches that minimise, or eliminate, the risk of overheating during high temperature periods while optimising historic buildings’ energy performance. View Full-Text
Keywords: historic building; energy retrofit; climate change; overheating; climate adaptation historic building; energy retrofit; climate change; overheating; climate adaptation
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MDPI and ACS Style

Hao, L.; Herrera-Avellanosa, D.; Del Pero, C.; Troi, A. Overheating Risks and Adaptation Strategies of Energy Retrofitted Historic Buildings under the Impact of Climate Change: Case Studies in Alpine Region. Appl. Sci. 2022, 12, 7162. https://doi.org/10.3390/app12147162

AMA Style

Hao L, Herrera-Avellanosa D, Del Pero C, Troi A. Overheating Risks and Adaptation Strategies of Energy Retrofitted Historic Buildings under the Impact of Climate Change: Case Studies in Alpine Region. Applied Sciences. 2022; 12(14):7162. https://doi.org/10.3390/app12147162

Chicago/Turabian Style

Hao, Lingjun, Daniel Herrera-Avellanosa, Claudio Del Pero, and Alexandra Troi. 2022. "Overheating Risks and Adaptation Strategies of Energy Retrofitted Historic Buildings under the Impact of Climate Change: Case Studies in Alpine Region" Applied Sciences 12, no. 14: 7162. https://doi.org/10.3390/app12147162

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