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PIMA disagrees

Professional Roofing



PIMA; r-value; polyisocyanurate; insulation

In April, the Polyisocyanurate Insulation Manufacturers Association (PIMA) issued a performance bulletin titled “Measuring the R-value of Polyiso Roof Insulation,” which attempts to refute NRCA’s recommendation that designers use an in-service R-value of 5.0 per inch when specifying polyisocyanurate insulation.

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