A Discussion on Winter Indoor Hygrothermal Conditions and Hygroscopic Behaviour of Plasters in Southern Europe
In Southern European countries, due to the specific climate, economy and culture, a permanent heating practice during winter is not widely adopted. This may have a significant effect on the performance of indoor coating materials, typically tested considering hygrothermal conditions in the range of...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Infrastructures |
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| Online Access: | https://www.mdpi.com/2412-3811/7/3/38 |
| _version_ | 1797470704314089472 |
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| author | Alessandra Ranesi Magda Posani Rosário Veiga Paulina Faria |
| author_facet | Alessandra Ranesi Magda Posani Rosário Veiga Paulina Faria |
| author_sort | Alessandra Ranesi |
| collection | DOAJ |
| description | In Southern European countries, due to the specific climate, economy and culture, a permanent heating practice during winter is not widely adopted. This may have a significant effect on the performance of indoor coating materials, typically tested considering hygrothermal conditions in the range of 33–75% relative humidity (RH) and 20–25 °C, which are common in continuously heated buildings. In this study, the indoor climate of four bedrooms located in Lisbon, Portugal, was monitored under operational conditions. Based on the data monitored in the case studies, characteristic ranges of indoor hygrothermal conditions were defined and compared to those considered in standard test procedures. In addition, numerical simulations were adopted to compare the hygroscopic performance of four plasters under operational conditions observed on-site. Results show that the four rooms, intermittently heated or unheated, do not provide comfort conditions over 50% of the wintertime, with temperatures lower and RH higher than the ones recommended by the standards. The MBVs resulting from simulations (under operational conditions) are qualitatively in agreement with the MBVs obtained under standard testing conditions. Nonetheless, future studies are recommended to evaluate if standard tests are quantitatively representative of the hygroscopic performance of coating materials in the Southern European scenario. |
| first_indexed | 2024-03-09T19:39:49Z |
| format | Article |
| id | doaj.art-d2293f09c12e44d8bf15c2b62be63774 |
| institution | Directory Open Access Journal |
| issn | 2412-3811 |
| language | English |
| last_indexed | 2024-03-09T19:39:49Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Infrastructures |
| spelling | doaj.art-d2293f09c12e44d8bf15c2b62be637742023-11-24T01:42:29ZengMDPI AGInfrastructures2412-38112022-03-01733810.3390/infrastructures7030038A Discussion on Winter Indoor Hygrothermal Conditions and Hygroscopic Behaviour of Plasters in Southern EuropeAlessandra Ranesi0Magda Posani1Rosário Veiga2Paulina Faria3CERIS—Civil Engineering Research and Innovation for Sustainability, NOVA School of Science and Technology, NOVA University of Lisbon, Quinta da Torre, 2829-516 Caparica, PortugalNational Laboratory for Civil Engineering, Avenida do Brasil 101, 1700-066 Lisbon, PortugalNational Laboratory for Civil Engineering, Avenida do Brasil 101, 1700-066 Lisbon, PortugalCERIS—Civil Engineering Research and Innovation for Sustainability, NOVA School of Science and Technology, NOVA University of Lisbon, Quinta da Torre, 2829-516 Caparica, PortugalIn Southern European countries, due to the specific climate, economy and culture, a permanent heating practice during winter is not widely adopted. This may have a significant effect on the performance of indoor coating materials, typically tested considering hygrothermal conditions in the range of 33–75% relative humidity (RH) and 20–25 °C, which are common in continuously heated buildings. In this study, the indoor climate of four bedrooms located in Lisbon, Portugal, was monitored under operational conditions. Based on the data monitored in the case studies, characteristic ranges of indoor hygrothermal conditions were defined and compared to those considered in standard test procedures. In addition, numerical simulations were adopted to compare the hygroscopic performance of four plasters under operational conditions observed on-site. Results show that the four rooms, intermittently heated or unheated, do not provide comfort conditions over 50% of the wintertime, with temperatures lower and RH higher than the ones recommended by the standards. The MBVs resulting from simulations (under operational conditions) are qualitatively in agreement with the MBVs obtained under standard testing conditions. Nonetheless, future studies are recommended to evaluate if standard tests are quantitatively representative of the hygroscopic performance of coating materials in the Southern European scenario.https://www.mdpi.com/2412-3811/7/3/38hygrothermal comfortindoor climatemoisture bufferinghygroscopic behavioursouthern Mediterranean countrieshygrometric regulation |
| spellingShingle | Alessandra Ranesi Magda Posani Rosário Veiga Paulina Faria A Discussion on Winter Indoor Hygrothermal Conditions and Hygroscopic Behaviour of Plasters in Southern Europe Infrastructures hygrothermal comfort indoor climate moisture buffering hygroscopic behaviour southern Mediterranean countries hygrometric regulation |
| title | A Discussion on Winter Indoor Hygrothermal Conditions and Hygroscopic Behaviour of Plasters in Southern Europe |
| title_full | A Discussion on Winter Indoor Hygrothermal Conditions and Hygroscopic Behaviour of Plasters in Southern Europe |
| title_fullStr | A Discussion on Winter Indoor Hygrothermal Conditions and Hygroscopic Behaviour of Plasters in Southern Europe |
| title_full_unstemmed | A Discussion on Winter Indoor Hygrothermal Conditions and Hygroscopic Behaviour of Plasters in Southern Europe |
| title_short | A Discussion on Winter Indoor Hygrothermal Conditions and Hygroscopic Behaviour of Plasters in Southern Europe |
| title_sort | discussion on winter indoor hygrothermal conditions and hygroscopic behaviour of plasters in southern europe |
| topic | hygrothermal comfort indoor climate moisture buffering hygroscopic behaviour southern Mediterranean countries hygrometric regulation |
| url | https://www.mdpi.com/2412-3811/7/3/38 |
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