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Weather protection at the construction site: Work environment and conditions for moisture and mould growth on massive timber
Skanska, Sweden.
Skanska, Sweden.
Skanska, Sweden.
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.
2023 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 2654, no 1, article id 012042Article in journal (Refereed) Published
Abstract [en]

During the last decade, the use of timber (especially massive timber) has increased worldwide, mainly driven by anticipated environmental benefits. However, there is debate on how to handle the susceptibility against microbial growth for wooden constructions, especially during the construction phase. Sometimes full weather protection is used to avoid exposing the wooden material to outdoor conditions, but oftentimes the structures are fully exposed to precipitation. In an earlier study, one construction site using a full weather protection was studied, and the results showed promising results on the improved hygrothermal conditions and reduced risk of mould growth. Moreover, the site contractor also indicated improved work environment and productivity, however, this was not included in that study. This present study aims to investigate the effects of using full weather protection during construction in seven different construction projects to follow-up and broaden the earlier single project study. The studied aspects include the hygrothermal conditions, potential of mould growth, and influence on the work environment. Temperature and relative humidity were measured and analysed. Samples of cross-laminated timber (CLT) were analysed using a microscope, and the results are compared to theoretical mould growth potential. This is measured both inside the weather protection and outside at the seven construction projects. Furthermore, a work environment questionnaire is distributed to workers at the sites to collect the perceived work environment using a full weather protection. The results of the study partly confirm the conclusions from the earlier study, i.e., reducing the risk of mould growth and causing a slightly warmer and dryer conditions than outside. In addition, the results indicate an improved work environment. The majority of the interviewees wishes a weather protection in their next project regarding the work environment.

Place, publisher, year, edition, pages
Institute of Physics , 2023. Vol. 2654, no 1, article id 012042
Keywords [en]
Employment; Human engineering; Moisture; Molds; Wooden buildings; Wooden construction; %moisture; Condition; Construction sites; Cross laminated; Cross-laminated timber; Laminated timber; Moisture safety; Mould growth; Weather protections; Work environments; Timber
National Category
Construction Management
Identifiers
URN: urn:nbn:se:ri:diva-69298DOI: 10.1088/1742-6596/2654/1/012042Scopus ID: 2-s2.0-85181172125OAI: oai:DiVA.org:ri-69298DiVA, id: diva2:1826151
Conference
13th Nordic Symposium on Building Physics, NSB 2023. Aalborg, Denmark. 12 June 2023 through 14 June 2023
Available from: 2024-01-11 Created: 2024-01-11 Last updated: 2024-01-11Bibliographically approved

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