The material properties of EnerSpan® EFS insulation used as a component in exterior insulation and finish systems meet or exceed the requirements for expanded polystyrene (EPS) insulation as specified in CAN/ULC-S701. . EnerSpan is manufactured using Neopor® provided by BASF, a graphite-enhanced raw material that reduces radiation heat transfer resulting in higher thermal resistance (R-value).

EnerSpan EFS insulation is manufactured under a stringent quality control program to meet the requirements of EIFS manufacturers that includes third party certification of material properties. EnerSpan EFS insulation can be supplied to any thickness required to provide specified thermal resistance (R-Value) and special shapes can be provided that will create the style or form needed for the building.

With an R-value of 4.7 per inch, EnerSpan helps you achieve your desired R-value with a thinner board. EnerSpan 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.

Easy to cut and install
Meets all building code requirements
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 EnerSpan^® EFS

Material Properties	ASTM Test	Units	Values
Density Minimum	C303 or D1622	pcf	0.90
Thermal Resistance Minimum	C177 or C518	ft²•hr•°F/BTU	75°F	4.7
Thermal Resistance Minimum	C177 or C518	ft²•hr•°F/BTU	40°F	4.9
Water Vapour Permanence Maximum	E96	perms	5.0
Dimensional Stability Maximum	D2126	% linear change	2.0
Water Absorption Maximum	C272	% By Volume	4.0
Flexural Strength Minimum	C203	psi	25
Compressive Resistance Minimum @10% Deformation	C165 or D1621	psi	10
Limiting Oxygen Index Minimum	D2863	% volume	24

Additional Material Properties for EnerSpan EFS Insulation
Water Absorption Maximum	C272	% by volume	2.0
Dimensional Stability Maximum	D2126	% linear change	0.5
Tensile Strength Minimum	D1623	psi	15

The dimensions, dimensional tolerances and block aging for EnerSpan® EFS insulation meet requirements specified in ASTM E2430 as detailed in Tables 2 and 3 below.

Table 2 - Dimensions and Dimensional Tolerances

Standard Dimension per ASTM E2430
Length	48 inches
Width	24 inches
Thickness	3/4 inch to as specified

Dimensional Tolerances ASTM E2430
Length	±1/16 inch
Width	±1/16 inch
Thickness	Minimum: 3/4 inch	±1/16 inch
Thickness	Maximum: As specified	±1/16 inch
Squareness	When measured on the large flat face from one corner to the opposing corner, dimensional variations shall not exceed 1⁄32 inch in 12 inch
Edge Trueness	When measured with a straight edge, edges shall not deviate more than 1/32 inch in 12 inch
Face Flatness	When measured across the face with a straight edge, maximum deviation from the straight edge shall not exceed more than 1/32 inch

Table 3 - Block Aging Requirements Prior to Cutting

Storage Condition	Average Temperature	Minimum Storage Period
Low Pentane (<4.5% pentane) Raw Materials and Vacuum Mould Technology
Plant Aging	Ambient Temperature 68 °F (20 °C) and RH	12 Days
Full Pentane (nominal 6% pentane) Raw Materials and Vacuum Mould Technology
Plant Aging	Ambient Temperature 68 °F (20 °C) and RH	18 Days
Full Pentane (nominal 6% pentane) Raw Materials and Non-Vacuum Mould Technology
Plant Aging	Ambient Temperature 68 °F (20 °C) and RH	42 Days
Heat Aging	Elevated Temperature 140 °F (60 °C)	5 Days