Report from Task 6 of MEWS Project: Experimental Assessment of Water Penetration and Entry into Wood-Frame Wall Specimens - Final Report

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TypeTechnical Report
Series titleResearch Report (National Research Council Canada. Institute for Research in Construction); no. RR-133
Physical description1 v. (various pagings) p.
SubjectMoisture performance
AbstractThe main emphasis of the MEWS project was to predict the hygrothermal responses of several wall assemblies that are exposed to North American climate loads, and a range of water leakage loads. Researchers used a method based on both laboratory experimentation and 2-D modeling with IRC's benchmarked model, hygIRC. This method introduced built-in detailing deficiencies that allowed water leakage into the stud cavity - both in the laboratory test specimens and in the virtual (modeling) ?specimens?- for the purpose of investigating water entry rates into the stud cavity and the drying potential of the wall assemblies under different climate loads. Since the project was a first step in investigating a range of wall hygrothermal responses in a parametric analysis, no field study of building characteristics was performed to confirm inputs such as water entry rates and outputs such as wall responsein a given climate. Rather, ranges from ?no water entry and no response' to ?too much water entry and too wet for too long' were investigated.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-15275
NPARC number20386351
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Record identifiera77069ab-cc34-4c51-906b-6e07170b692e
Record created2012-07-25
Record modified2017-07-05
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