Ultra Polyiso Insulation

Ultra Polyiso Insulation

Why EnergyGuard™ Ultra Polyiso Insulation?

EnergyGuard™ Ultra Polyiso Insulation consists of coated glass-fiber mat facer laminated to a closed-cell polyisocyanurate foam core. EnergyGuard™ Ultra Polyiso Insulation manufactured in our plants uses the latest technology in manufacturing to provide a product of the highest quality.


  • Improved fire resistance — achieves a Class A rating over combustible decks without the use of a gypsum board or fire-rated slip sheet. When used with single-ply TPO, a total of at least 3" (76 mm) of EnergyGuard™ Ultra Polyiso Insulation is required; a Class B fire rating is also obtained when using at least a single layer of 1.5" (38.1 mm) EnergyGuard™ Ultra Polyiso Insulation.
  • Meets the requirements of ASTM D3273 for resistance to growth of mold.
  • EnergyGuard™ Ultra Polyiso Insulation is designed for use in practically any low-slope roof application, including built-up roofs, modified bitumen, or most single-ply roofing systems.
  • Excellent “LTTR” value compared to any other FM Class I rated product of equivalent thickness at 5.7 per inch.
  • Because of its light weight, this material is easy to handle on the job site and installs faster.
  • Easier cutting in the field provides the installer with simplified fabricating on the roof deck.

Product Properties

Contact GAF Contact GAF
Professional Installation Find A Contractor
Pricing and Where to Buy DISTRIBUTORS & RETAILERS