Parametric Study of Lightweight Wooden Wall Assemblies for Cold and Subarctic Climates Using External Insulation
While externally insulated wall assemblies are widely recognized for their hygrothermal performance, few research projects have focused on the impact of shifting the entire wall insulation to the exterior side of a structural cavity in cold or subarctic climates or its effectiveness in terms of acou...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/7/1031 |
| _version_ | 1797407148338053120 |
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| author | Alexis Caron-Rousseau Pierre Blanchet Louis Gosselin |
| author_facet | Alexis Caron-Rousseau Pierre Blanchet Louis Gosselin |
| author_sort | Alexis Caron-Rousseau |
| collection | DOAJ |
| description | While externally insulated wall assemblies are widely recognized for their hygrothermal performance, few research projects have focused on the impact of shifting the entire wall insulation to the exterior side of a structural cavity in cold or subarctic climates or its effectiveness in terms of acoustic performance and airtightness. The objective of this study was to propose fully externally insulated assemblies that could be used in cold and subarctic climates by assessing the benefits of the hygrothermal performance of these assemblies and by achieving a comparable airtightness and sound transmission performance to the modern assemblies that are currently built in North America. The results suggested that the externally insulated assemblies limited the risk of condensation occurring inside structural cavities and allowed for faster drying than the modern assemblies when exposed to water infiltration or high water contents in all climates that were tested. The assemblies with external airtight insulation boards were more airtight than assemblies with air barrier membranes and, in addition, assemblies with external soundproof insulation were shown to be necessary to achieve a comparable sound transmission loss to that of a modern assembly. |
| first_indexed | 2024-03-09T03:37:18Z |
| format | Article |
| id | doaj.art-39563c6275ac4c0286bf8eeda8a95124 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T03:37:18Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-39563c6275ac4c0286bf8eeda8a951242023-12-03T14:46:40ZengMDPI AGBuildings2075-53092022-07-01127103110.3390/buildings12071031Parametric Study of Lightweight Wooden Wall Assemblies for Cold and Subarctic Climates Using External InsulationAlexis Caron-Rousseau0Pierre Blanchet1Louis Gosselin2Department of Wood and Forest Sciences, Université Laval, Quebec City, QC G1V 0A6, CanadaDepartment of Wood and Forest Sciences, Université Laval, Quebec City, QC G1V 0A6, CanadaDepartment of Mechanical Engineering, Université Laval, Quebec City, QC G1V 0A6, CanadaWhile externally insulated wall assemblies are widely recognized for their hygrothermal performance, few research projects have focused on the impact of shifting the entire wall insulation to the exterior side of a structural cavity in cold or subarctic climates or its effectiveness in terms of acoustic performance and airtightness. The objective of this study was to propose fully externally insulated assemblies that could be used in cold and subarctic climates by assessing the benefits of the hygrothermal performance of these assemblies and by achieving a comparable airtightness and sound transmission performance to the modern assemblies that are currently built in North America. The results suggested that the externally insulated assemblies limited the risk of condensation occurring inside structural cavities and allowed for faster drying than the modern assemblies when exposed to water infiltration or high water contents in all climates that were tested. The assemblies with external airtight insulation boards were more airtight than assemblies with air barrier membranes and, in addition, assemblies with external soundproof insulation were shown to be necessary to achieve a comparable sound transmission loss to that of a modern assembly.https://www.mdpi.com/2075-5309/12/7/1031thermal resistancewall partitionsbuilding envelopeairtightnesstransmission lossnoise insulation |
| spellingShingle | Alexis Caron-Rousseau Pierre Blanchet Louis Gosselin Parametric Study of Lightweight Wooden Wall Assemblies for Cold and Subarctic Climates Using External Insulation Buildings thermal resistance wall partitions building envelope airtightness transmission loss noise insulation |
| title | Parametric Study of Lightweight Wooden Wall Assemblies for Cold and Subarctic Climates Using External Insulation |
| title_full | Parametric Study of Lightweight Wooden Wall Assemblies for Cold and Subarctic Climates Using External Insulation |
| title_fullStr | Parametric Study of Lightweight Wooden Wall Assemblies for Cold and Subarctic Climates Using External Insulation |
| title_full_unstemmed | Parametric Study of Lightweight Wooden Wall Assemblies for Cold and Subarctic Climates Using External Insulation |
| title_short | Parametric Study of Lightweight Wooden Wall Assemblies for Cold and Subarctic Climates Using External Insulation |
| title_sort | parametric study of lightweight wooden wall assemblies for cold and subarctic climates using external insulation |
| topic | thermal resistance wall partitions building envelope airtightness transmission loss noise insulation |
| url | https://www.mdpi.com/2075-5309/12/7/1031 |
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