EnerSpan 20 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 S701.1, Type 2 EPS insulation.

With an R-value of 4.7 per inch, EnerSpan 20 helps you achieve your desired R-value with a thinner board. EnerSpan 20 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 20 psi, EnerSpan 20 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 20EPS 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 20 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 20 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
  • Thinner boards are needed to reach the desired R-value than others so the same effect is achieved with less material

Material Properties of EnerSpan® 20 Insulation

Material Property Units CAN/ULC-S701 Type
1 2 3
Thermal Resistance
Minimum RSI per 25mm (inch)
ASTM C518
m20C/W
(ft2•h•0F/BTU)
0.82
(4.7)
0.82
(4.7)
0.82
(4.7)
Compressive Resistance
Minimum @ 10% Deformation
ASTM D1621
kPa
(psi)
70
(20)
110
(16)
170
(25)
Flexural Strength
Minimum
ASTM C203
kPa
(psi)
170
(25)
240
(35)
300
(44)
Water Vapour Permeance
Maximum
ASTM E96
ng/(Pa.s.m2)
(Perms)
300
(5.2)
200
(3.5)
130
(2.25)
Water Absorption
Maximum
ASTM D2842
% By Volume 6.0 4.0 2.0
Dimensional Stability
Maximum, 7 Days @ 70± 2℃ (158±40F)
ASTM D2126
% Linear Change 1.5 1.5 1.5
Limiting Oxygen Index
Minimum
ASTM D2863
% 24 24 24
Surface Burning Characteristics
Classification or Rating
CAN/ULC S102.2
Flame Spread
Smoke Developed
220
over 500

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