Commercial | Residential | Multifamily | Wall

Foam boards engineered to beat the cold

A sturdy subfloor thermal insulation that resists moisture and freeze-thaw cycles. FREEZERMATE™ XPS Insulation is a rigid Styrofoam™ solution designed for low-temperature application while delivering high R-values.



FREEZERMATE™ Extruded Polystyrene (XPS) foam insulation a STYROFOAM™ Brand solution for use as subfloor thermal insulation in low-temperature applications. It features smooth, high density skins with excellent insulating characteristics, high resistance to water and water vapor, excellent freeze-thaw resistance, superior compressive strength and long-term durability. FREEZERMATE™ Insulation can also be used in most static and dynamic loading situations for flooring applications. Because the rigid foam insulation boards resist even severe forms of moisture penetration in freezer and cooler construction, they offer long-term R-values* superior to other types of thermal insulation.


Features & benefits

Feature Benefit
Moisture resistant
  • Resists even severe forms of moisture penetration in freezer and cooler construction
  • Excellent freeze-thaw resistance
  • Offer long-term R-values superior to other types of thermal insulation
  • Smooth and high density skins
  • Easy to handle, cut with a utility knife or any sharp blade, and install
  • Contains an average of 20% pre-consumer recycled content
  • Sustainable and resuable

    Physical properties

    Thermal Resistance R-value per in., min1,2 Compressive Strength, min.3 Flexural Strength, min. Water Absorption, max. Water Vapor Permeance, max.4 Dimensional Stability, max Coefficient of Linear Thermal Expansion Complies with ASTM C 578 Maximum Use Temperature Flame Spread5 Smoke Developed
    ASTM Method C518 D1621 C203 C272 E96 D2126 D696 C578 - E84 E84
    Units ft2 •h•°F/Btu psi (kPa) psi (kPa) % by volume (24 hr water immersion) perm (ng/Pa•s•m2) % linear change x105in/in °F (x102mm/m °C) Type °F (°C) - -
    Freezermate™ 30 5.0 30 - 0.3 1.5 (86) 3.5 3.5 IV 165 15 165
    Freezermate™ 40 5.0 40 - 0.3 1.0 (57.2) 3.5 3.5 VI 165 15 165
    Freezermate™ 60 5.0 60 - 0.3 0.8 (45.8) 3.5 3.5 VII 165 15 165

    1 Not all product sizes are available in all regions.

    2 R means resistance to heat flow. The higher the R-value, the greater the insulating power. R-values are expressed in ft²•h•°F/Btu. R-value determined by ASTM C518.

    3 Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first. Since Styrofoam™ insulations are visco-elastic materials, adequate design safety factors should be used to prevent long-term creep. For static loads, 3:1 is suggested. For dynamic loads, call 1-866-583-BLUE (2583) for safety factor recommendation.

    4 Water vapor permeance varies with product type and thickness. Values are based on the desiccant method and they apply to insulation 1” or greater in thickness.

    5 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-Value Board Size (in.) Edge Treatment
    Freezermate™ 30 2 - 2 x 8, 4 x 8 Square Edge
    3 - 2 x 8, 4 x 8 SquareEdge
    4 - 2 x 8, 4 x 8 SquareEdge