Indoor and outdoor weather analysis tool for hygrothermal modelling

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Conference8th Conference on Building Science and Technology: 22 February 2001, Toronto, Ontario
Pages139157; # of pages: 19
Subjectindoor, outdoor, moisture, boundary conditions, hygrothermal engineering; Hygrothermal properties; Building envelope
AbstractThis paper describes an in-house computer program WeatherSmart-1.0. The main purpose of the tool is to facilitate the analysis of the outdoor weather data to obtain representative environmental boundary conditions. These conditions are, in turn, necessary for the analysis of long-term heat-air and moisture responses in building envelopes performed for thermal and moisture design. The environmental boundary conditions generated are location-specific and for the expected usage of the building considered. Review of the literature to highlight the current knowledge in terms of defining both indoor and outdoor MoistureReference Years (MRYs) is presented. Several approaches to characterise either the indoor or the outdoor environmental conditions are part of the program. The different approaches allow analysis of the environmental conditions that apply moisture and thermal loads on the particular envelope component beingstudied. Construction-dependent and independent methods for selecting the outdoor MRYs havebeen incorporated in the tool. The indoor environment, representing the expected usage of thebuilding under consideration, is derived by two approaches for both controlled and uncontrolledindoor environments.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number44686
NPARC number20378673
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Record identifier73d566a9-09e5-48b2-941e-de982875e46d
Record created2012-07-24
Record modified2016-05-09
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