Moisture Redistribution in Full-Scale Wood-Frame Wall Assemblies: Measurements and Engineering Approximation
A counter-balanced mass measurement system was constructed to allow measurement of water loss from a full-scale wood-framed wall assembly. Water was injected onto a localized area of paper towel adjacent to the oriented strand board (OSB) wall sheathing. Moisture pins in the OSB and relative humidit...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
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| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/10/8/141 |
| _version_ | 1797558164206387200 |
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| author | Charles R. Boardman Samuel V. Glass Samuel L. Zelinka |
| author_facet | Charles R. Boardman Samuel V. Glass Samuel L. Zelinka |
| author_sort | Charles R. Boardman |
| collection | DOAJ |
| description | A counter-balanced mass measurement system was constructed to allow measurement of water loss from a full-scale wood-framed wall assembly. Water was injected onto a localized area of paper towel adjacent to the oriented strand board (OSB) wall sheathing. Moisture pins in the OSB and relative humidity/temperature sensors inside the insulated wall cavity monitored conditions as the wall dried out. The wetted OSB area’s moisture content dropped at a faster rate than the total mass of the wall, indicating moisture redistribution within the wall. A simple model was used to calculate overall moisture redistribution, which was characterized using a near-exponential decay function. This simplification of the inherently three-dimensional physics of moisture redistribution could be incorporated into the one-dimensional hygrothermal models often used in research and engineering practice. |
| first_indexed | 2024-03-10T17:26:36Z |
| format | Article |
| id | doaj.art-9d56ba8bd5b54d25a3c82da48c38af39 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-10T17:26:36Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-9d56ba8bd5b54d25a3c82da48c38af392023-11-20T10:09:57ZengMDPI AGBuildings2075-53092020-08-0110814110.3390/buildings10080141Moisture Redistribution in Full-Scale Wood-Frame Wall Assemblies: Measurements and Engineering ApproximationCharles R. Boardman0Samuel V. Glass1Samuel L. Zelinka2Building and Fire Sciences, US Forest Service Forest Products Laboratory, Madison, WI 53726, USABuilding and Fire Sciences, US Forest Service Forest Products Laboratory, Madison, WI 53726, USABuilding and Fire Sciences, US Forest Service Forest Products Laboratory, Madison, WI 53726, USAA counter-balanced mass measurement system was constructed to allow measurement of water loss from a full-scale wood-framed wall assembly. Water was injected onto a localized area of paper towel adjacent to the oriented strand board (OSB) wall sheathing. Moisture pins in the OSB and relative humidity/temperature sensors inside the insulated wall cavity monitored conditions as the wall dried out. The wetted OSB area’s moisture content dropped at a faster rate than the total mass of the wall, indicating moisture redistribution within the wall. A simple model was used to calculate overall moisture redistribution, which was characterized using a near-exponential decay function. This simplification of the inherently three-dimensional physics of moisture redistribution could be incorporated into the one-dimensional hygrothermal models often used in research and engineering practice.https://www.mdpi.com/2075-5309/10/8/141moisture performancemoisture redistributiondrying potentialbuilding envelopeoriented strand boardmass balance |
| spellingShingle | Charles R. Boardman Samuel V. Glass Samuel L. Zelinka Moisture Redistribution in Full-Scale Wood-Frame Wall Assemblies: Measurements and Engineering Approximation Buildings moisture performance moisture redistribution drying potential building envelope oriented strand board mass balance |
| title | Moisture Redistribution in Full-Scale Wood-Frame Wall Assemblies: Measurements and Engineering Approximation |
| title_full | Moisture Redistribution in Full-Scale Wood-Frame Wall Assemblies: Measurements and Engineering Approximation |
| title_fullStr | Moisture Redistribution in Full-Scale Wood-Frame Wall Assemblies: Measurements and Engineering Approximation |
| title_full_unstemmed | Moisture Redistribution in Full-Scale Wood-Frame Wall Assemblies: Measurements and Engineering Approximation |
| title_short | Moisture Redistribution in Full-Scale Wood-Frame Wall Assemblies: Measurements and Engineering Approximation |
| title_sort | moisture redistribution in full scale wood frame wall assemblies measurements and engineering approximation |
| topic | moisture performance moisture redistribution drying potential building envelope oriented strand board mass balance |
| url | https://www.mdpi.com/2075-5309/10/8/141 |
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