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Article

Evaluating the Impact of Indoor Insulation on Historic Buildings: A Multilevel Approach Involving Heat and Moisture Simulations

1
Politecnico di Torino, 10129 Torino, Italy
2
TEBE Research Group, Department of Energy, Politecnico di Torino, 10129 Torino, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Constantinos A. Balaras
Appl. Sci. 2021, 11(17), 7944; https://doi.org/10.3390/app11177944
Received: 31 May 2021 / Revised: 31 July 2021 / Accepted: 11 August 2021 / Published: 27 August 2021
The energy refurbishment of historic buildings is a complex task for building envelope designers who need to carefully consider building conservation guidelines and principles. In most cases, external wall insulation techniques can determine an unacceptable alteration of the historical value of a building. For this reason, internal wall insulation techniques have been used widely in the last few decades. Nevertheless, dealing with internal wall insulation requires a complex design to avoid the risk of condensation and moisture-related pathologies. Moreover, an internal wall insulation may have a relevant impact on indoor comfort conditions. In this paper, the Monastery of Santa Maria de Monfero in Galicia (Spain) has been adopted as a building case study to compare different technological solutions based on: (i) an insulating plaster layer, (ii) dry counter wall systems. In the first step, heat and moisture transfer simulations of the wall components were performed to analyze the hygrothermal behavior of the different alternatives considering two different climate conditions. In a second step, a simulation of the whole building was performed to analyze the impact of the retrofitting strategies on the indoor climate and on the building heating and cooling demand. The obtained results show that the counter wall solution leads to higher energy savings during the heating season in the colder winter climate. However, the use of insulating thermal plaster could also be a viable solution since they lead to several advantages in summer because of their higher thermal inertia. Therefore, the selection of the most appropriate insulation technique has to be evaluated carefully considering the outdoor/indoor climate and using a case-by-case approach. View Full-Text
Keywords: cultural heritage; hygrothermal performance; thermal plaster; interior insulation; stone construction; energy saving; thermal comfort; thermal transmittance cultural heritage; hygrothermal performance; thermal plaster; interior insulation; stone construction; energy saving; thermal comfort; thermal transmittance
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MDPI and ACS Style

Lisitano, I.M.; Laggiard, D.; Fantucci, S.; Serra, V.; Fenoglio, E. Evaluating the Impact of Indoor Insulation on Historic Buildings: A Multilevel Approach Involving Heat and Moisture Simulations. Appl. Sci. 2021, 11, 7944. https://doi.org/10.3390/app11177944

AMA Style

Lisitano IM, Laggiard D, Fantucci S, Serra V, Fenoglio E. Evaluating the Impact of Indoor Insulation on Historic Buildings: A Multilevel Approach Involving Heat and Moisture Simulations. Applied Sciences. 2021; 11(17):7944. https://doi.org/10.3390/app11177944

Chicago/Turabian Style

Lisitano, Ivana M., Deborah Laggiard, Stefano Fantucci, Valentina Serra, and Elisa Fenoglio. 2021. "Evaluating the Impact of Indoor Insulation on Historic Buildings: A Multilevel Approach Involving Heat and Moisture Simulations" Applied Sciences 11, no. 17: 7944. https://doi.org/10.3390/app11177944

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