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Abstract

Hygrothermal performance of wood frame walls with low diffusion resistance wind barriers

Authors
  • Nickolaj Feldt Jensen (Department of the Built Environment, Aalborg University, Denmark)
  • Torben Valdbjørn Rasmussen (Department of the Built Environment, Aalborg University, Denmark)
  • Hicham Johra (Department of the Built Environment, Aalborg University, Denmark and SINTEF Community, Oslo, Norway)

Abstract

To mitigate climate change there is a need to switch to low-impact materials, including bio-based alternatives substituting conventional materials. However, these materials are more sensitive to moisture induced damage and future climate scenarios predict a warmer and more humid climate. In addition, current best practice guidelines are challenged in terms of using bio-based materials in building constructions. Therefore, the main objective of this study was to demonstrate that it is possible to build bio-based exterior wall constructions that by modelling and experimentally are shown to be moisture-resistant, with low to no risk of mould growth, using low diffusion resistance wind barriers. This was done by comparing hot box – cold box measurements with baseline results from dynamic hygrothermal simulations.

Keywords: Hygrothermal performance, wood frame wall, vapour retarder, wind barrier, diffusion resistance, bio-based

How to Cite:

Jensen, N. F., Rasmussen, T. V. & Johra, H., (2025) “Hygrothermal performance of wood frame walls with low diffusion resistance wind barriers”, UCL Open Environment 7(S1). doi: https://doi.org/10.14324/111.444/ucloe.icmb25.a32

Rights: Author, [2025]

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Published on
20 Oct 2025
Peer Reviewed
License
Creative Commons Attribution 4.0