Energreen® GPS Enhanced insulation is a Type 1, Type 2, and Type 3 moulded graphite polystyrene (GPS) rigid foam insulation that gives maximum efficiency, cost-effectiveness and sustainability to your insulation projects. Energreen GPS Enhanced is manufactured using Neopor® provided by BASF, a graphite-enhanced raw material that reduces radiation heat transfer resulting in higher thermal resistance (R-value) compared to standard CAN ULC S701.1.

With an R-value of 4.7 per inch, Energreen® GPS Enhanced helps you achieve your desired R-value with a thinner board. Energreen® GPS Enhanced insulation is easy to work with and install, and consistently delivers the highest true R-value performance over time. This high-performing insulation is breathable, while the closed-cell structure does not support the growth of mold, while adapting to all climate zones.

The higher compressive strength of Energreen® GPS Enhanced makes it an excellent choice for under slab and below grade applications. Not only does it maintain its R-value for the life of the product, but provides the compressive resistance needed to meet strict building codes.

Energreen® GPS Enhanced insulation resists water absorption so it will retain its R-value even in applications where temperatures fluctuate. Markings provided on the printed face of Energreen® GPS Enhanced insulation assist in cutting to required dimensions and spacing of fasteners into framing.

Available in:

  • 4x8 ft; 2 ft high bundles
  • Thicknesses of 3/4, 1, 1 ½, 2, 2 ½, 3 in. plus special order sizes
  • Easy to cut and install
  • Meets CAN ULC S701, Type 1,2,3
  • Closed cell insulation
  • No Thermal Drift
  • Compressive Resistance of 10 psi
  • A True R-value of 4.7 per inch
  • Resistant to moisture
  • Uses up to 30% less material than other rigid foam insulation to achieve the same R-value, saving on building materials and installation labor
  • Thinner boards are needed to reach the desired R-value than others so the same effect is achieved with less material

Material Properties of Energreen® GPS Enhanced Insulation

Material Property Units CAN/ULC-S701.1 Type
1 2 3
Thermal Resistance
Minimum per unit of thickness
RSI per 25 mm - m20C/W
R-value per inch - (ft2•h•0F/BTU)
Compressive Resistance
Minimum @ 10% Deformation
ASTM D1621
Water Vapour Permeance
Surface Burning Characteristics
Classification or Rating
CAN/ULC S102.2
Flame Spread
Smoke Developed
over 500

Energreen® GPS Enhanced Insulation Projects

Next Steps

Icon of a person representing our sales staff for DuroFoam Plus 25 Insulation

Talk to a Rep

Talk to an EPS Product Specialist in your area who will help you with products and pricing.

Icon of a form to show our connect with us form - DuroFoam Plus 25 Insulation page

Connect with Us

Send us your questions and one of our EPS experts will get back with you.