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Selected findings of an IRC study of the wetting and drying potentials of wood-frame walls exposed to different climates

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceCIB 2004 Conference: 02 May 2004, Toronto, Ontario
Subjectmoisture; walls; modelling; cladding; Moisture performance
Abstract
The National Research Council of Canada, with partners from industry, has just completed afour-year project on the wetting and drying performance of exterior walls of low-rise wood-frame buildingsexposed to a range of climate loads characteristic of North America. The Moisture Management inExterior walls (MEWS) project activities included a review of typical construction practices, thecharacterization of hygrothermal properties for many commonly used building materials, the assessmentof moisture loads for different North American locations, laboratory tests of large-scale wall specimens tomeasure water entry through imperfections, and finally a parametric study using IRC's hygIRC 2Dhygrothermal numerical model to predict moisture and temperature balances at selected locations withinvirtual wall assemblies. The MEWS study has produced a method of comparing the risks of deterioration associated with different wall assemblies using different material properties, exposed to different climatic moisture loads. Here are a few of the general findings from the application of this method in the MEWS project:
Publication date
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  • CIB 2004 Conference [Proceedings] (1 May 2004): 1–9.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 47066
NRC-IRC-16341
NPARC number20377385
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Record identifier82d8b843-66cd-41c1-b88b-ea18a3817f95
Record created2012-07-24
Record modified2020-04-17
Date modified: