Techniques for in Situ Determination of Thermal Resistance of Lightweight Board Insulations

[+] Author and Article Information
G. E. Courville

Energy Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6092

J. V. Beck

Heat Transfer Group, Department of Mechanical Engineering, Michigan State University, East Lansing, MI 48824

J. Heat Transfer 111(2), 274-280 (May 01, 1989) (7 pages) doi:10.1115/1.3250674 History: Received October 30, 1987; Online October 20, 2009


Four techniques for determining the in situ thermal resistance of rigid board insulation installed in conventional low-sloped roofs are described and compared. All techniques use measured temperature distributions and heat fluxes in the roof systems. The limitations of the techniques are discussed. Test results are presented to allow a comparison of the methods.

Copyright © 1989 by ASME
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