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Does the R-value of the EPS experience thermal drift?

April 26, 2017drift EPS experience R-Value Thermal

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Does the R-value of the EPS experience thermal drift?

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No, when properly insulated, the R-value of EPS insulation remains constant because the cellular structure contains only stabilized air. The R-value of EPS will not decrease with age. As a result, the thermal resistance, or R-value, may be used without age adjustment.