EnergyGuard NH HD Polyiso Insulation Specs

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    Why EnergyGuard NH HD Polyiso Insulation?

    EnergyGuard™ NH HD Polyiso Roof Insulation 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.


    Benefits of EnergyGuard NH HD Polyiso Insulation include:
    • Durable coated glass facer bonded to a core of non-halogenated isocyanurate foam.
    • A fraction of the weight of gypsum cover boards.
    • Over 80 psi compressive strength for NH HD.
    • Manufactured with EPA-complaint 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) and Grade 2 (110 psi).
    • 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 for specific assembly approvals.
    • FM Approvals Specification Tested per FM 4473 for Class 3 impact resistance as a component of a Class 3 rated roofing assembly. Refer to the FM Approval Guide for Specification Tested roofing assemblies.
    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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