A field monitoring investigation of the effect of adding different exterior thermal insulation materials on the hygrothermal response of wood-frame walls in a cold climate

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ConferenceBEST2 Conference (Building Enclosure Science & Technology): 12 April 2010, Portland, (OR), USA
Pages115; # of pages: 15
SubjectInsulation, energy retrofit, field testing, wetting and drying; Building envelope
AbstractThis paper will present and discuss monitoring results of this study, comparing the hygrothermal response of the 3 side-by-side test wall assemblies. The results showed that adding some thermal insulation on the exterior of an insulated stud cavity can contribute to reducing the duration of the potential for interstitial condensation but events of condensation can still take place during the coldest period of winter in a climate such as Ottawa (when other essential contributing factors are in place). Results indicated that the air and vapour permeance of the exterior insulation materials not only affected the flow of moisture to the outside during wintertime periods of air exfiltration but also affected moisture inwards flow during humid early summer conditions.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number53586
NPARC number20373875
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Record identifier497102c6-d2bb-4efb-aae4-8058d45e99cf
Record created2012-07-23
Record modified2016-05-09
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