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Maximum thickness restrictions for spray foam

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Abstract
Many contractors and building inspectors appear to be unaware that the technical specifications for SPF products often include “maximum thickness” limitations. Since buildings insulated with the listed “maximum thickness” of SPF often fail to meet minimum prescriptive R-value requirements, builders who learn of these limitations are often surprised and confused.
Date
4/2008
Author(s)
Page(s)
4-9
Keyword(s)
SPF; spray polyurethane foam; maximum thickness; limitation


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