Effect of exfiltration on the hygrothermal behaviour of a residential wall assembly: Results from calculations and computer simulations

Tuomo Ojanen, Kumar Kumaran

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    The hygrothermal behaviour of timber frame wall is analysed using a steady-state calculation method and a two-dimensional heat, air and moisture transport computer model. The conditions leading to exfiltration of warm and humid indoor air are examined. The physical quantities calculated include the amount of moisture accumulated in the wall cavity during the heating season and the heat loss across the wall. Several interesting correlations emerge. These correlations show the advantage of using the analytical methods in deriving design guidelines for building components. The results from The analysis are used to identify and quantify various parameters that govern the performance of air barrier systems.
    Original languageEnglish
    Title of host publicationInternational Symposium on Moisture Problems in Building Walls
    EditorsVasco Peixoto de Freitas, Vitor Abrantes
    PublisherUniversidade do Porto - Reitoria
    Pages157-167
    ISBN (Print)978-972-752-021-3
    Publication statusPublished - 1995
    MoE publication typeA4 Article in a conference publication
    EventInternational Symposium on Moisture Problems in Building Walls - Porto, Portugal
    Duration: 11 Sep 199513 Sep 1995

    Conference

    ConferenceInternational Symposium on Moisture Problems in Building Walls
    CountryPortugal
    CityPorto
    Period11/09/9513/09/95

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  • Cite this

    Ojanen, T., & Kumaran, K. (1995). Effect of exfiltration on the hygrothermal behaviour of a residential wall assembly: Results from calculations and computer simulations. In V. P. de Freitas, & V. Abrantes (Eds.), International Symposium on Moisture Problems in Building Walls (pp. 157-167). Universidade do Porto - Reitoria.