Fungal damages in Norwegian massive timber elements – a case study

Austigard, Mari Sand; Mattsson, Johan

doi:10.1080/17480272.2020.1801835

Cited by 11 publications

(2 citation statements)

References 8 publications

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“…The analysis also indicates mold growth mainly driven by exposing material to precipitation. Studies on mold growth during construction phase are less common, but results are in line with [22,32]. However, the importance of the construction period, together with the impact of variations in weather conditions and future climate, seems to be underestimated in the industry.…”

Section: Evaluation Reportingmentioning

confidence: 61%

“…Possible damage caused by exceeding critical moisture levels during construction is not in focus; thus, both targets are not fully covered. Only [22,32] provided documentation on the mold growth target from a case study, indicating mold growth due to precipitation during the construction phase. Common conclusion is the importance of moisture safety in design, with emphasis on the design of building components and detailing.…”

Section: Risk Identificationmentioning

confidence: 99%

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Risk Assessment Framework to Avoid Serial Failure for New Technical Solutions Applied to the Construction of a CLT Structure Resilient to Climate

Tengberg

Hagentoft

2021

Buildings

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Design-build contractors are challenged with the task of minimizing failure risks when introducing new technical solutions or adapting technical solutions to new conditions, e.g., climate change. They seem to have a disproportional trust in suppliers and their reference cases and might not have adequate resources or methodologies for sufficient evaluation. This creates the potential for serial failures to spread in the construction industry. To mitigate this, it was suggested that a predefined risk assessment framework should be introduced with the aim of providing a prequalification and requirements for the use of the technical solution. The objectives of this paper are to develop a comprehensive risk assessment framework and to explore the framework’s potential to adequately support the design-build contractor’s decisions. The framework uses qualitative assessment, relying on expert workshops and quantitative assessments, with a focus on simulation and probabilities. Tollgates are used to communicate risk assessments to the contractor. The framework is applied to a real-life case study of construction with a CLT-structure for a Swedish design-build contractor, where exposure to precipitation during construction is a key issue. In conclusion, the chosen framework was successful in a design-build contractor context, structuring the process and identifying difficulties in achieving the functional requirements concerning moisture. Three success factors were: documentation and communication, expert involvement, and the use of tollgates. Recommendations to the design-build contractor on construction of CLT structure are to keep construction period short and to use full weather protection on site.

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Section: Evaluation Reportingmentioning

confidence: 61%

Section: Risk Identificationmentioning

confidence: 99%