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Pilotmontage av nytt fasadelementsystem i trä - Fasaden i staden Snabb Snygg Smart
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.ORCID iD: 0000-0002-0006-9425
Luleå University of Technology, Sweden.
2020 (Swedish)Report (Other academic)
Abstract [en]

This report is about the evaluation of the pilot installation of a new wooden façade element system that was mounted on two four-story timber buildings. Technical solutions were evaluated, mounting time, moisture and deformations were measured, and interviews were conducted with builders on-site. The mounting started in April 2020 and was followed-up with measurements and interviews during 2020. The two buildings were built by Lindbäcks Bygg AB on Porsön in Luleå, Sweden and the developer was Lindbäcks Fastigheter AB. The façade elements were prefabricated by Lindbäcks Bygg AB in the factory at Öjebyn in Piteå Sweden. The mounting work went well, and the builders were positive about the facade system. When the builders had learned how to carry out the work, it took three minutes per façade element, which is equivalent to 0.9 m2/min. This is faster than the traditional installation of a facade on a construction site. The assembly around the windows took about 10 minutes, which is about the same time as in traditional assembly. During 8 months of measurements the average moisture content (MC) behind the façade elements was about 20% during winter (low T, high RH) and about 11% during summer. That is within expected values due to the annual variation in climate. The deformation was measured with laser scanning and gave a deviation of ±1 cm from a perfect plane, indicating a better dimensional stability than traditionally mounted wooden facades. From a working environment perspective, the assembly work was quieter as no nail guns were needed and the builders did not need to handle individual panel boards. Significantly less nails and screws were needed compared to traditional assembly. Experience from the assembly show the possibility for improvements. The construction platform was not optimal for loading elements during assembly. When the builders had gained some experience of the system, the limitation was to get the elements up quickly enough. A fast and efficient assembly requires a detailed planning in the design phase, and the elements should be numbered in a logical way and sufficient packaging needs to be secured. The promising results show the potential for a future way to manufacture and mount wooden facades. “The facade of the city Swift Stylish Smart” is a project within the strategic program Bioinnovation founded by Vinnova (Sweden’s innovation agency), Energimyndigheten (Swedish Energy Agency), Formas (A Swedish Research Council for Sustainable Development), and the industry partners.

Place, publisher, year, edition, pages
2020. , p. 40
Series
RISE Rapport ; 2020:64
Keywords [en]
wooden cladding, façade element, façade installation, assembly time, 3-D scanning
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:ri:diva-57376ISBN: 978-91-89167-49-0 (electronic)OAI: oai:DiVA.org:ri-57376DiVA, id: diva2:1622417
Available from: 2021-12-22 Created: 2021-12-22 Last updated: 2023-05-23Bibliographically approved

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Sandberg, Karin

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