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PlastiSpan® 25 Insulation
Increased R-value & compressive resistance

PlastiSpan® 25 Insulation is used in Exterior Foundation, Slab on grade and Ice Rinks.
Overview Header

• Meets all building code requirements
• Meets ASTM C578, Type IX
• Thermal resistance - R-value 4.4 per inch
• Closed cell insulation resists moisture

EPS is closed cell, rigid foam plastic insulation that does not contain a
blowing agent that provides temporary increase in thermal resistance.

PlastiSpan insulation applied to continuous insulation over foundations,
walls and roofs eliminates thermal bridging, increasing your total effective
R-value. This reduces energy costs and increases your energy savings.

PlastiSpan expanded polystyrene (EPS) insulation conforms to ASTM C578,
Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation, as
detailed below. PlastiSpan insulation has also been evaluated for
conformance with the requirements of ICC-ES AC12, Acceptance Criteria for
Foam Plastic Insulation per ICC-ES Evaluation Report ESR-1587 and
Intertek Code Compliance Research Report CCRR-1072 (see Code Support
section in Technical Library for additional information).

Specification Header

The table below provides material properties for PlastiSpan insulation meeting CAN/ULC-S701, Type 3.

Insulation Properties Units ASTM Test Type IX
Nominal Density
pcf C303
Compressive Resistance
Minimum @ 10% deformation
psi D1621 25.0
per inch thickness at
mean temperature
40 0F (ft2•hr•0F/Btu) C518 4.8
75 0F 4.4
Water Vapor Permeance
Perm E96 2.5
Flexural Strength
psi C203 50
Dimensional Stability
% linear change D2126 2.0
Water Absorption
% by volume C272 2.0
Oxygen Index
volume % D2863 24
pcf C303 1.80
Flame Spread Index
E84 <25
Smoke-Developed Index

As part of its commitment to quality and ongoing sustainability initiatives, Plasti-Fab maintains GREENGUARD Gold
for PlastiSpan 25 insulation with UL Environment, an independent global safety science organization.
The GREENGUARD Gold Certification mark on PlastiSpan 25 insulation gives assurance that insulation designed for
use in indoor spaces meets strict chemical emissions limits, which contribute to the creation of healthier interiors.