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Moisture gain and its thermal consequence for common roof insulations

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Abstract
This paper describes a method for determining the rate of moisture gain and the decay in thermal resistance caused by moisture in common roof insulations. Information on the rate of moisture gain for various insulations is tabulated and graphed. The rate of moisture gain varies significantly with insulation type and wetting test boundary conditions. Graphs are presented to define the decay in thermal resistance of insulation samples at increasing moisture contents. Moisture significantly reduces the thermal resistance of most roof insulations.
Date
8/1978
Author(s)
Wayne Tobiasson; John Ricard
Page(s)
16
Keyword(s)
moisture gain; insulation; thermal resistance decay; moisture content; thermal resistance


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