Application of a Whole-Building Hygrothermal model in energy, durability, and indoor humidity retrofit design

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DOIResolve DOI: http://doi.org/10.1177/1744259114522400
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TypeArticle
Journal titleJournal of Building Physics
ISSN1744-2591
Volume39
Issue1
Pages334; # of pages: 32
SubjectArchitectural design; Buildings; Design; Durability; Energy efficiency; Energy utilization; Humidity control; Large scale systems; Retrofitting; Durability assessment; Energy simulation; Hygrothermal performance; Indoor air; integrated HAM analysis; Structural design
AbstractA building shall be classified as high performance building if it is energy efficient and durable and at the same time provides comfortable and healthy indoor environment for occupants. To achieve this objective, the hygrothermal performance of alternative building designs should be evaluated based on the simultaneous analysis of these three functional requirements rather than separately. In this article, a Whole-Building Hygrothermal model is used for evaluation of various retrofit design parameters that potentially enhance the overall performance of an existing residential house. The retrofit options considered in this study include changes to the reference house's ventilation rate and operation, windows, insulation level, and various combinations of these options. Energy efficiency, building envelope and moisture management potential, indoor humidity control, and window condensation potentials are considered to be the four performance indicators in searching for a retrofit option that delivers an optimal performance. The hygrothermal simulation results indicate that changing a design parameter to improve one of the design goals may result in less optimal results in the other one or both goals, or even in some cases result in severe negative consequences.
Publication date
PublisherSAGE Publications
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Research in Construction
Peer reviewedYes
NPARC number21275734
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Record identifieraf0f2cac-8beb-456d-ab68-feb925b5c45f
Record created2015-07-14
Record modified2016-05-09
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