Volume 6, Issue 5 (May 2009)

    Measuring the Impact of Experimental Parameters upon the Estimated Thermal Conductivity of Closed-Cell Foam Insulation Subjected to an Accelerated Aging Protocol: Two-Year Results

    (Received 23 July 2008; accepted 24 February 2009)

    Published Online: 2009

    CODEN: JAIOAD

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    Abstract

    The thermal conductivity of many closed-cell foam insulation products changes over time as production gases diffuse out of the cell matrix and atmospheric gases diffuse into the cells. Thin slicing has been shown to be an effective means of accelerating this process in such a way as to produce meaningful results. Efforts to produce a more prescriptive version of the ASTM C1303, “Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation,” have led to a broad ruggedness test. This test includes the aging of full-size insulation specimens for time periods up to 5 years for later comparison to the predicted results. Experimental parameters under investigation include: slice thickness, slice origin (at the surface or from the core of the slab), thin-slice stack composition, product facings, original product thickness, product density, and product type. This paper will compare the results after two years of full-thickness aging.


    Author Information:

    Stovall, Therese
    Oak Ridge National Laboratory,


    Stock #: JAI102025

    ISSN: 1546-962X

    DOI: 10.1520/JAI102025

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    Author
    Title Measuring the Impact of Experimental Parameters upon the Estimated Thermal Conductivity of Closed-Cell Foam Insulation Subjected to an Accelerated Aging Protocol: Two-Year Results
    Symposium Second Symposium on Heat-Air-Moisture Transport: Measurements and Implications in Buildings, 2009-04-20
    Committee C16