Compact wooden roofs with smart vapour barrier – Pilot project experiences
Compact roofs are normally built without organic materials between the vapour barrier and the roof membrane due to moisture safety risks. However, laboratory measurements indicate that organic materials could be used provided that a smart vapour barrier (SVB) is applied at the warm face of the roof...
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ftsintef:oai:sintef.brage.unit.no:11250/2671417 2023-05-15T15:08:17+02:00 Compact wooden roofs with smart vapour barrier – Pilot project experiences Bunkholt, Nora Schjøth Gullbrekken, Lars Geving, Stig Kvande, Tore 2020 application/pdf https://hdl.handle.net/11250/2671417 https://doi.org/10.1051/e3sconf/202017207010 eng eng EDP Science 12th Nordic Symposium on Building Physics (NSB 2020) Norges forskningsråd: 237859 E3S Web of Conferences. 2020, 172 . urn:issn:2267-1242 https://hdl.handle.net/11250/2671417 https://doi.org/10.1051/e3sconf/202017207010 cristin:1822348 CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ © The Authors, published by EDP Sciences, 2020. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. CC-BY 7 172 E3S Web of Conferences 07010 Roof Buildings Compact roofs Measurements Malvik Norway Longyearbyen VDP::Teknologi: 500 Peer reviewed Conference object Journal article 2020 ftsintef https://doi.org/10.1051/e3sconf/202017207010 2021-08-04T11:59:33Z Compact roofs are normally built without organic materials between the vapour barrier and the roof membrane due to moisture safety risks. However, laboratory measurements indicate that organic materials could be used provided that a smart vapour barrier (SVB) is applied at the warm face of the roof construction. The aim of this study is to investigate the moisture and temperature conditions in three full-scale flat compact wooden roofs with SVB. The roofs are part of two pilot projects located in Longyearbyen, Svalbard and Malvik, Norway. The paper presents the two projects including the premises for construction of the roofs and provides preliminary measurement results. The roofs are instrumented to measure moisture content and temperature in the wooden roof beams. The initial results from Longyearbyen show that the moisture content in the wooden beams is low and indicate that compact wooden roofs with SVB may be a solution with acceptable moisture risk in the arctic climate. The initial results from Malvik show that there might be a risk of mould growth in the roof as the built-in moisture in the wooden beams was up to 24 weight-%. In both projects, the moisture content in the beams in general was higher close to the roof underlay than close to the SVB. publishedVersion Article in Journal/Newspaper Arctic Longyearbyen Svalbard SINTEF Open (Brage) Arctic Longyearbyen Norway Svalbard E3S Web of Conferences 172 07010 |
institution |
Open Polar |
collection |
SINTEF Open (Brage) |
op_collection_id |
ftsintef |
language |
English |
topic |
Roof Buildings Compact roofs Measurements Malvik Norway Longyearbyen VDP::Teknologi: 500 |
spellingShingle |
Roof Buildings Compact roofs Measurements Malvik Norway Longyearbyen VDP::Teknologi: 500 Bunkholt, Nora Schjøth Gullbrekken, Lars Geving, Stig Kvande, Tore Compact wooden roofs with smart vapour barrier – Pilot project experiences |
topic_facet |
Roof Buildings Compact roofs Measurements Malvik Norway Longyearbyen VDP::Teknologi: 500 |
description |
Compact roofs are normally built without organic materials between the vapour barrier and the roof membrane due to moisture safety risks. However, laboratory measurements indicate that organic materials could be used provided that a smart vapour barrier (SVB) is applied at the warm face of the roof construction. The aim of this study is to investigate the moisture and temperature conditions in three full-scale flat compact wooden roofs with SVB. The roofs are part of two pilot projects located in Longyearbyen, Svalbard and Malvik, Norway. The paper presents the two projects including the premises for construction of the roofs and provides preliminary measurement results. The roofs are instrumented to measure moisture content and temperature in the wooden roof beams. The initial results from Longyearbyen show that the moisture content in the wooden beams is low and indicate that compact wooden roofs with SVB may be a solution with acceptable moisture risk in the arctic climate. The initial results from Malvik show that there might be a risk of mould growth in the roof as the built-in moisture in the wooden beams was up to 24 weight-%. In both projects, the moisture content in the beams in general was higher close to the roof underlay than close to the SVB. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Bunkholt, Nora Schjøth Gullbrekken, Lars Geving, Stig Kvande, Tore |
author_facet |
Bunkholt, Nora Schjøth Gullbrekken, Lars Geving, Stig Kvande, Tore |
author_sort |
Bunkholt, Nora Schjøth |
title |
Compact wooden roofs with smart vapour barrier – Pilot project experiences |
title_short |
Compact wooden roofs with smart vapour barrier – Pilot project experiences |
title_full |
Compact wooden roofs with smart vapour barrier – Pilot project experiences |
title_fullStr |
Compact wooden roofs with smart vapour barrier – Pilot project experiences |
title_full_unstemmed |
Compact wooden roofs with smart vapour barrier – Pilot project experiences |
title_sort |
compact wooden roofs with smart vapour barrier – pilot project experiences |
publisher |
EDP Science |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2671417 https://doi.org/10.1051/e3sconf/202017207010 |
geographic |
Arctic Longyearbyen Norway Svalbard |
geographic_facet |
Arctic Longyearbyen Norway Svalbard |
genre |
Arctic Longyearbyen Svalbard |
genre_facet |
Arctic Longyearbyen Svalbard |
op_source |
7 172 E3S Web of Conferences 07010 |
op_relation |
12th Nordic Symposium on Building Physics (NSB 2020) Norges forskningsråd: 237859 E3S Web of Conferences. 2020, 172 . urn:issn:2267-1242 https://hdl.handle.net/11250/2671417 https://doi.org/10.1051/e3sconf/202017207010 cristin:1822348 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ © The Authors, published by EDP Sciences, 2020. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1051/e3sconf/202017207010 |
container_title |
E3S Web of Conferences |
container_volume |
172 |
container_start_page |
07010 |
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1766339678588370944 |