PlastiSpan Insulation HD is a moulded expanded polystyrene (EPS) insulation. EPS is a closed cell, rigid foam plastic insulation.

PlastiSpan insulation applied as 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).

  • Available in 2x8 ft, 4x8 ft; 2 ft high bundles
  • 1, 1 ½, 2, 2 ½, 3 in. Thicknesses with Special order sizes available upon request
  • Meets all building codes for above & below grade
  • Most cost-effective insulation per R-value
  • Meets ASTM C578, Type II
  • Thermal resistance - R-value 4.2/inch @ 75 F, 4.6/inch @ 40 F
  • Closed cell insulation resists moisture
  • Compressive Resistance: 15 psi
  • Easy to cut and install
  • Maintains R-value
  • Increases energy efficiency for reduced heating and cooling costs
  • Can be used in Retrofit & new construction

Material Properties of PlastiSpan® HD

Insulation Properties Units ASTM Test Type II
Nominal Density pcf C303 1.50
Compressive Resistance
Minimum @ 10% deformation
psi D1621 15.0
per inch thickness at mean temperature
40 °F (ft2•hr•°F/Btu) C518 4.6
75 °F 4.2
Water Vapour Permeance
Perm E96 3.5
Flexural Strength
psi C203 35
Dimensional Stability
% linear change D2126 2.0
Water Absorption
% by volume C272 3.0
Oxygen Index
volume % D2863 24
pcf C303 1.35
Flame Spread Index
E84 <25
Smoke-Developed Index
Thermal Resistance for Some Common Thicknesses
Millimeters RSI Inches R-Value
19 0.53 3/4" 3.03
25 0.70 1" 4.04
38 1.05 1 1/2" 6.06
50 1.40 2" 8.08
75 2.10 3" 12.12
Other Standard & Custom thicknesses available upon request.
Standard sizes range from; 2x4,2x8,4x4,4x8.

PlastiSpan® HD Insulation Projects

Habitat for Humanity - Owen Sound and Wiarton

Net Zero Energy Homes - Belgravia Green

Continuous Insulation in Hubert Residence

Innovative First Nations - Penticton

Scouts Camp McLean

Blogs Featuring PlastiSpan® HD Insulation

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