EnerSpan 25 insulation 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, Type 3 EPS insulation.

With an R-value of 4.7 per inch, EnerSpan 25 helps you achieve your desired R-value with a thinner board. EnerSpan 25 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. With the higher compressive strength of 25 psi, EnerSpan 25 is a versatile insulation product that can be used in a wide range of applications, but it ideal when higher compressive resistance is required.

EnerSpan 25 EPS is a closed cell, rigid foam plastic insulation that maintains its R-value for the life of the product. When applied as continuous insulation over foundations, walls and roofs, EnerSpan 25 insulation is a cost-effective solution that eliminates thermal bridging, increasing your total R-value.

Available in 2x8 ft. and 4x8 ft., 2 ft. high bundles

Thicknesses of ¾, 1, 1 ½, 2, 2 ½ , 3, 3 ½ , 4 inches, Plus special order sizes and thickness to meet job

  • Meets all building code requirements
  • Compressive Resistance of 25 psi
  • Thermal resistance of True R-value of 4.7 per inch
  • Closed cell insulation resists moisture
  • Easy to cut and install
  • Permanent R-value
  • Increases energy efficiency for reduced heating and cooling costs
  • Can be used for retrofit or new construction
  • Uses up to 30% less material than other rigid foam insulation to achieve the same R-value, saving on building materials and installation labor

Material Properties of EnerSpan® 25 Insulation

Material Property Test Method Units Property Values
Compressive Resistance
Minimum @ 10% Deformation
ASTM D1621
ASTM
D1621
kPa
(psi)
110
(25)
Compressive Modulus
Minimum
kPa
(psi)
4000
(580)
Thermal Resistance
Minimum RSI per 25mm (1 inch)
ASTM C518
ASTM
C518
m20C/W
(ft2•h•0F/BTU)
0.78
(4.7)
Flexural Strength
Minimum
ASTM
C203
kPa
(psi)
240
(35)
Water Vapour Permeance
Maximum
ASTM
E96
ng/(Pa.s.m2)
(Perms)
200
(3.5)
Dimensional Stability
Maximum, 7 Days @ 70± 2℃ (158±40F)
ASTM
D2126
% Linear Change 1.5
Water Absorption
Maximum
ASTM
D2842
% By Volume 4.0
Limiting Oxygen Index
Minimum
ASTM
D2863
% 24

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