SYMPOSIA PAPER Published: 01 January 1987
STP18497S

An Apparatus for Thermal Performance Measurements of Insulated Roof Systems

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The U.S. Department of Energy is conducting thermal performance measurements on low-slope roofs with a recently developed field test apparatus at Oak Ridge National Laboratory (ORNL). The apparatus accommodates four 1.2 by 2.4-m (4 by 8-ft) test specimens and includes the measurement capabilities for specimen temperatures, temperature gradients, heat flows, and moisture content. A weather station characterizes outdoor weather conditions. Tests underway include (1) validation of a roof surface temperature model developed to study the effects of wet insulation, (2) measurement of temperature distributions and heat transfer in high R value roofs, and (3) validation of an analysis of the effectiveness of high reflectance surfaces. Preliminary experimental results are presented and correlations between experiment and modeling are discussed.

Author Information

Courville, GE
Oak Ridge National Laboratory, Oak Ridge, TN
Childs, KW
Oak Ridge National Laboratory, Oak Ridge, TN
Walukas, DJ
Oak Ridge National Laboratory, Oak Ridge, TN
Childs, PW
Oak Ridge National Laboratory, Oak Ridge, TN
Griggs, EI
Tennessee Technological University, Cookeville, TN
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Details
Developed by Committee: C16
Pages: 449–459
DOI: 10.1520/STP18497S
ISBN-EB: 978-0-8031-4998-4
ISBN-13: 978-0-8031-0493-8