How does PU Foam compare to XPS and EPS in thermal performance?

PU foam board significantly outperforms both XPS (R-5/inch) and EPS (R-3.8-4.4/inch) in thermal efficiency with its R-6 to R-7/inch rating. This means thinner insulation layers can achieve the same thermal performance, saving space in building designs. Additionally, PU maintains its R-value better over time compared to EPS, and doesn’t experience the same level of thermal drift as some XPS products that use blowing agents with higher global warming potential.

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How does PU Foam compare to XPS and EPS in thermal performance?

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