Applied Research of the Hygrothermal Behaviour of an Internally Insulated Historic Wall without Vapour Barrier: In Situ Measurements and Dynamic Simulations
The hygrothermal behaviour of an internally insulated historic wall is still hard to predict, mainly because the physical characteristics of the materials composing the historic wall are unknown. In this study, the hygrothermal assessment of an internally thermal insulated masonry wall of an histori...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/13/3362 |
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| author | Mirco Andreotti Dario Bottino-Leone Marta Calzolari Pietromaria Davoli Luisa Dias Pereira Elena Lucchi Alexandra Troi |
| author_facet | Mirco Andreotti Dario Bottino-Leone Marta Calzolari Pietromaria Davoli Luisa Dias Pereira Elena Lucchi Alexandra Troi |
| author_sort | Mirco Andreotti |
| collection | DOAJ |
| description | The hygrothermal behaviour of an internally insulated historic wall is still hard to predict, mainly because the physical characteristics of the materials composing the historic wall are unknown. In this study, the hygrothermal assessment of an internally thermal insulated masonry wall of an historic palace located in Ferrara, in Italy, is shown. In situ non-destructive monitoring method is combined with a hygrothermal simulation tool, aiming to better analyse and discuss future refurbishment scenarios. In this context, the original U-value of the wall (not refurbished) is decreased from 1.44 W/m<sup>2</sup>K to 0.26 W/m<sup>2</sup>K (10 cm stone wool). Under the site specific conditions of this wall, not reached by the sun or rain, it was verified that even in the absence of vapour barrier, no frost damage is likely to occur and the condensation risk is very limited. Authors proposed further discussion based on simulation. The results showed that the introduction of a second gypsum board to the studied technology compensated such absence, while the reduction of the insulation material thickness provides a reduction of RH peaks in the interstitial area by 1%; this second solution proved to be more efficient, providing a 3% RH reduction and the avoidance of further thermal losses. |
| first_indexed | 2024-03-10T18:45:27Z |
| format | Article |
| id | doaj.art-5cc92554931a40c889344b6e63ec7a6c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T18:45:27Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5cc92554931a40c889344b6e63ec7a6c2023-11-20T05:32:20ZengMDPI AGEnergies1996-10732020-07-011313336210.3390/en13133362Applied Research of the Hygrothermal Behaviour of an Internally Insulated Historic Wall without Vapour Barrier: In Situ Measurements and Dynamic SimulationsMirco Andreotti0Dario Bottino-Leone1Marta Calzolari2Pietromaria Davoli3Luisa Dias Pereira4Elena Lucchi5Alexandra Troi6Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, 44122 Ferrara, ItalyEurac Research, Institute for Renewable Energy, 39100 Bolzano, ItalyDepartment of Engineering and Architecture, University of Parma, 43124 Parma, ItalyArchitettura Energia Research Centre, Department of Architecture, University of Ferrara, 44121 Ferrara, ItalyArchitettura Energia Research Centre, Department of Architecture, University of Ferrara, 44121 Ferrara, ItalyEurac Research, Institute for Renewable Energy, 39100 Bolzano, ItalyEurac Research, Institute for Renewable Energy, 39100 Bolzano, ItalyThe hygrothermal behaviour of an internally insulated historic wall is still hard to predict, mainly because the physical characteristics of the materials composing the historic wall are unknown. In this study, the hygrothermal assessment of an internally thermal insulated masonry wall of an historic palace located in Ferrara, in Italy, is shown. In situ non-destructive monitoring method is combined with a hygrothermal simulation tool, aiming to better analyse and discuss future refurbishment scenarios. In this context, the original U-value of the wall (not refurbished) is decreased from 1.44 W/m<sup>2</sup>K to 0.26 W/m<sup>2</sup>K (10 cm stone wool). Under the site specific conditions of this wall, not reached by the sun or rain, it was verified that even in the absence of vapour barrier, no frost damage is likely to occur and the condensation risk is very limited. Authors proposed further discussion based on simulation. The results showed that the introduction of a second gypsum board to the studied technology compensated such absence, while the reduction of the insulation material thickness provides a reduction of RH peaks in the interstitial area by 1%; this second solution proved to be more efficient, providing a 3% RH reduction and the avoidance of further thermal losses.https://www.mdpi.com/1996-1073/13/13/3362HeLLoenergy retrofitnon-destructive testin situhygrothermal measurementdynamic conditions |
| spellingShingle | Mirco Andreotti Dario Bottino-Leone Marta Calzolari Pietromaria Davoli Luisa Dias Pereira Elena Lucchi Alexandra Troi Applied Research of the Hygrothermal Behaviour of an Internally Insulated Historic Wall without Vapour Barrier: In Situ Measurements and Dynamic Simulations Energies HeLLo energy retrofit non-destructive test in situ hygrothermal measurement dynamic conditions |
| title | Applied Research of the Hygrothermal Behaviour of an Internally Insulated Historic Wall without Vapour Barrier: In Situ Measurements and Dynamic Simulations |
| title_full | Applied Research of the Hygrothermal Behaviour of an Internally Insulated Historic Wall without Vapour Barrier: In Situ Measurements and Dynamic Simulations |
| title_fullStr | Applied Research of the Hygrothermal Behaviour of an Internally Insulated Historic Wall without Vapour Barrier: In Situ Measurements and Dynamic Simulations |
| title_full_unstemmed | Applied Research of the Hygrothermal Behaviour of an Internally Insulated Historic Wall without Vapour Barrier: In Situ Measurements and Dynamic Simulations |
| title_short | Applied Research of the Hygrothermal Behaviour of an Internally Insulated Historic Wall without Vapour Barrier: In Situ Measurements and Dynamic Simulations |
| title_sort | applied research of the hygrothermal behaviour of an internally insulated historic wall without vapour barrier in situ measurements and dynamic simulations |
| topic | HeLLo energy retrofit non-destructive test in situ hygrothermal measurement dynamic conditions |
| url | https://www.mdpi.com/1996-1073/13/13/3362 |
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