EnergyGuard™ NH HD Barrier

EnergyGuard™ NH HD Barrier is TCPP Free, has an R-value of 2.5, the highest r-value compared to non-polyiso cover boards of equivalent thickness, achieves an ANSI UL790 roof rating over combustible wood decks without the use of a slip sheet - and, at 11 lb. respectively per 4’ x 8’ board, it’s a fraction of the weight of gypsum cover boards. With 80 psi compressive strength and a durable coated glass facer, EnergyGuard™ NH HD Barrier provides a sturdy substrate and protection for a roof system.

  • A fraction of the weight of gypsum cover boards.
  • >80 psi minimum compressive strength.
  • Manufactured with EPA-compliant blowing agents.
  • Contain no CFCs or HCFCs; has zero ODP.
  • Excellent dimensional stability.
  • Lower overall perm rating than many conventional insulation boards.
  • 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).

Features & Benefits

Product Documentation

Spec Advisor for Green Building Rating Systems

A quick look at systems that meet LEED® and Living Building Challenge™ certifications by using EnergyGuard™ and other GAF components.
Three GAF contractors laying down and aligning TCPP-free NH polyiso products

EnergyGuard™ NH Polyiso product line

GAF offers a full line of TCPP-free NH polyiso products! Learn more about the benefits and sustainable certifications these products offer.

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