EnergyGuard NH HD Polyiso Cover Board Specs

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      Why EnergyGuard NH HD Polyiso Cover Board?

      EnergyGuard™ NH HD Polyiso Cover Board meets all the inherent properties and performance polyiso is known for and has the highest R-value (2.5) of any cover board without any halogenated flame retardants – making it your best choice for a sustainable building design.

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      See how this product can help you meet your environmental goals.  View sustainability information here.


      Benefits of EnergyGuard NH HD Polyiso Cover Board include:
      • Durable coated glass facer bonded to a core of non-halogenated isocyanurate foam.
      • A fraction of the weight of gypsum cover boards.
      • >80 psi minimum compressive strength.
      • Manufactured with EPA-compliant blowing agents.
      • Contain no CFCs or HCHSs; has zero ODP.
      • Excellent dimensional stability.
      • Lower overall perm rating than many conventional insulation boards.
      • High moisture resistance and no capillarity.
      • Is a Red List Free product with a Declare label designation.
      • Holds a Health Product Declaration (HPD).
      • Meets ASTM C1289 Type 2, Class 4, Grade 1 (80 psi minimum).
      • Meets FM 4450/4470 and UL 790.
      • Meets FM Approval criteria for severe hail damage resistance (Class 1-SH) when FM Approved as a component of a Class 1-SH rated roofing assembly. Refer to RoofNav.comfor specific assembly approvals.
      Sustainable design projects pursuing certifications under a green building rating system such as LEED® v4 or Living Building Challenge will benefit from these certifications and listings.

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