EnergyGuard™ Polyiso Insulation
EnergyGuard™ Polyiso is a flat board made of glass fiber-reinforced (GRF) cellulosic felt facers bonded to a core of polyisocyanurate foam. EnergyGuard™ Polyiso is widely used in commercial construction for new and retrofit applications and is compatible with a large variety of roofing systems. To prevent thermal bridging, we recommend installing two layers of EnergyGuard with joints staggered.
*reference UL iQ for assembly details
**California Code of Regulations, Title 24, Insulation Quality Standard License # **California Code of Regulations, Title 24, Insulation Quality Standard License #
Features & Benefits
EnergyGuard™ delivers high thermal value, moisture resistance, and dimensional stability to virtually all low-slope roofing systems.
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ENERGY EFFICIENT
Highest R value per inch compared to any other type of non polyiso insulation of equivalent thickness. -
RECYCLED CONTENT
Green Circle certified for recycled content. Offers potential LEED® credits for polyiso use. -
EASY TO INSTALL
Lightweight and easy to cut in the field, making handling and installation easier and more efficient.

Sustainability documents & tools
To see how this product contributes to specific Green Building rating systems, click “View sustainable documents” below.
To view all products with sustainability documentation, click
‘View Spec Advisor’ below.

GAF Commercial Chairman’s Circle Contractors
The GAF Commercial Chairman’s Circle recognizes exceptional contractors in the commercial roofing industry. Each year, GAF invites contractor businesses to join this key partnership based on shared business commitment, reputation, loyalty, capability, and philanthropy.
EnergyGuard™ offers versatility, giving you multiple installation options to fit your specific roof system needs.
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Two layers of 2.6” EnergyGuard™ Polyiso over a steel deck reaches an R value of 30
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EnergyGuard™ polyiso is lightweight and easy to maneuver around a job site
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Installation of two layers of EnergyGuard™ polyiso with staggered joints helps to prevent thermal bridging
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EnergyGuard™ is compatible with a variety of single-ply roofing systems including TPO shown here.
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EnergyGuard™ is ideal for retrofit construction when a roof is being replaced and additional thermal value is needed.
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EnergyGuard™ is ideal for new construction and is compatible with a variety of decks including metal, wood and concrete.

Commercial roofing products: solutions for every roofing need
From single-ply membranes to full system solutions, and state-of-the-art digital services to hands-on training. GAF offers the range of durable, easy-to-use products and services you need to succeed.