Commercial Residential Multifamily Wall

A versatile STYROFOAM™ insulation option.

Ideal for those projects that require high R-value and moisture resistance, but without the demands for a high-compressive strength product. UTILITYFIT™ XPS Insulation is effective in both commercial and residential applications.


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UTILIYFIT™ Extruded Polystyrene (XPS) Foam Insulation is a STYROFOAM™ Brand solution manufactured as a versatile, utility-grade product for applications that require a high R-value and outstanding moisture resistance without the need for high compressive strength. UTILITYFIT XPS insulation is designed for use in the United States when a Type X, or lower-compressive strength, product is needed. If the superior properties of a Type IV 25 psi product are not required, UTILITYFIT XPS Insulation is a good choice for your application.


Features & benefits

Feature Benefit
  • Manufactured for versatile utility in commercial and residential applications
  • Strong
  • Minimum compressive strength of 15 psi
  • Designed for use when a high R-value and outstanding moisture resistance are needed, without the need for a high compressive strength
  • East to use
  • Square, tongue and groove, and scoreboard edge treatments available
  • Eco-friendly
  • Contains an average of 20% pre-consumer recycled content certified by UL Environment Inc.

    Physical properties

    Method Unit Value
    Thermal Resistance per inch, @ 75°F mean temp. ASTM C518 ft2•h•°F/Btu, R-value1, min. 5.0
    Compressive Strength ASTM D1621 psi, min. 15
    Water Absorption ASTM C272 % by volume, max. .3
    Maximum Use Temperature - °F 165
    Coefficient of Linear Thermal Expansion ASTM D696 in/in•°F 3.5 x 10-5

    (1) Values are consistent with the criteria of ASTM C578 and the FTC R-value rule (16 CFR Part 460). 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™ Brand Extruded Polystyrene Foam Insulations are visco-elastic materials, adequate design safetyfactors should be used to prevent long-term creep and fatigue deformation. For static loads, 3:1 is suggested. For dynamic loads, 5:1 is suggested. Contact Dow for design recommendations


    Available sizes