09-01-14, 11:46 AM | #1 |
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Poly-Iso Insulating Foam R-value is Changing...
Various foam R-values get discussed a lot on this forum, so I thought it would be of interest to know that new testing procedures are being applied.
R-value is being reduced from R-6/inch to R-5.7/inch SEE_ANNOUNCEMENT There could be other changes to other materials, too. -AC
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09-01-14, 06:37 PM | #2 |
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The same holds true for 2lb urethane foam and isonine foam. Long term tests show a settling of R values for most foams.
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