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    Author(s): Samuel V. Glass; Anton TenWolde; Samuel L. Zelinka
    Date: 2013
    Source: Wood Design Focus, Volume 23, Number 3; Fall Issue 2013; pp 18-25.
    Publication Series: Scientific Journal (JRNL)
    Station: Forest Products Laboratory
    PDF: View PDF  (590.67 KB)

    Description

    Is it possible to gauge the risk of moisture problems while designing the building envelope? This article provides a brief introduction to computer-based hygrothermal (heat and moisture) simulation, shows how simulation can be useful as a design tool, and points out a number of im-portant considerations regarding model inputs and limita-tions. Hygrothermal simulation allows a designer to pre-dict the moisture and temperature conditions that might occur within a building envelope assembly over time. This type of analysis can improve the understanding of how the building envelope responds to the interior and exterior environment and can help identify potential moisture per-formance problems. The article briefly discusses the rela-tionship between hygrothermal simulations and ASHRAE Standard 160-2009, Criteria for Moisture-Control Design Analysis in Buildings (ASHRAE 2009). The article con-cludes with simulation examples using wood-frame con-struction and cross-laminated timber construction to demonstrate the usefulness of hygrothermal analysis in the design of wood buildings.

    Publication Notes

    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Glass, Samuel V.; TenWolde, Anton; Zelinka, Samuel L. 2013. Hygrothermal Simulation: A Tool for Building Envelope Design Analysis. Wood Design Focus, Volume 23, Number 3; Fall Issue 2013; pp 18-25.

    Keywords

    hygrothermal analysis, simulation, moisture performance, building envelope, building enclosure, moisture control, design loads

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