DuPont™ Styrofoam™ Brand Scoreboard Extruded Polystyrene Foam Insulation

Commercial | Residential | Multifamily | Wall

Get long-term durability with stable R-values

Made for use in exterior cavity wall and foundation applications, Styrofoam™ Brand Scoreboard Insulation combines exceptional compressive strength with high moisture resistance.


DuPont™ Styrofoam™ Brand Scoreboard Extruded Polystyrene Foam Insulation

Styrofoam™ Brand Scoreboard Extruded Polystyrene Foam Insulation* is an extruded polystyrene foam insulation board that is scored longitudinally on 16” and 24” centers, making it easy to size to commonly used widths, cut and install. It has excellent insulating characteristics, high resistance to water and water vapor, exceptional compressive strength and long-term durability.

* Styrofoam™ Brand Scoreboard Insulation is a former product of The Dow Chemical Company


Features & benefits

Feature Benefit
Excellent adhesion
  • Impact resistant
  • Moisture Resistant
  • Stable long-term R-value
  • Enhanced productivity

    Physical properties

    Method Unit Value
    Thermal Resistance per inch (R-value), @ 75°F mean temp.1 ASTM C518 ft2 •h•°F/Btu, R-value, min. 5.0
    Compressive Strength2 ASTM D1621 psi, min. 25
    Water Absorption ASTM C272 % by volume, max. 0.3
    Water Vapor Permeance ASTM E96 perm, max 1.5
    Maximum Use Temperature - °F 165
    Coefficient of Linear Thermal Expansion ASTM D696 in/in•°F 3.5 x 10-5
    Flexural Strength ASTM C203 psi, min. 50
    Dimensional Stability ASTM D2126 % linear change, max 2.0
    Surface Burning Characteristics4 ASTM E84 -
    Flame Spread / Smoke Developed3 - - 15
    - - 165

    1 R means resistance to heat flow. The higher the R-value, the greater the insulating power.

    2 Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first. Since Styrofoam™ Extruded Polystyrene Foam Insulations are visco-elastic materials, adequate design safety factors should be used to prevent long-term creep and fatigue deformation.

    3 Based on 1” thickness.

    4 This numerical flame spread rating is not intended to reflect hazards presented by this or any other material under actual fire conditions


    Available sizes


    Thickness1 (in.) R-Value2 Board Size (ft.) Edge Treatment
    0.75 3.8 4 x 8 Square Edge
    1.0 5.0 4 x 8 Square Edge
    1.5 7.5 4 x 8 Square Edge
    2.0 10.0 4 x 8 Square Edge
    2.5 12.5 4 x 8 Square Edge
    3.0 15.0 4 x 8 Square Edge

    1Not all product sizes are available in all regions. Additional product sizes are available by custom order. Consult your DuPont sales representative about other sizes and lead-time requirements.

    2Aged R-value at 1” cured foam @ 75°F mean temperature. R-value expressed in ft2 •h•°F/Btu. R-value determined by ASTM C518 using the aging process in ASTM C1289 (90 days @ 140°F).