Accelerated aging performance evaluation of 'smart vapor retarder'

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ConferenceASHRAE Thermal Performance of the Exterior Envelopes of Whole Buildings XI International Conference: 05 December 2010, Clearwater, Beach, FL.,
Pages114; # of pages: 14
SubjectSmart vapour retarder, long-term performance evaluation, water vapour permeance; Air and vapour barriers
AbstractThis paper presents experimental findings from accelerated aging tests, simulating long-term performance indicators, on SVR and compares them with the similar observations made on traditional 6-mil poly (i.e. polyethylene) vapor and air barrier. Elevated temperature and ultra violet (UV) light were the two primary environmental agents used to accelerate the aging process. The performance of the vapor barrier was assessed from water vapor permeance, air permeance and tensile strength properties at various stages of aging. The results from these tests indicate that water vapor permeance, air permeance and mechanical properties of SVR do change due to accelerated aging. In aged SVR material, compared to the original specimens, the RH dependency of the water vapor permeance at higher RH levels appears to be less evident. However, overall performance of SVR, while compared to 6-mil poly, does not exhibit significant concerns about its accelerated weathering performance or serviceability.
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AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number54006
NPARC number20374837
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Record identifierea920d15-73df-4314-96a9-c15dbd3c3060
Record created2012-07-23
Record modified2016-05-09
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