Dupont Styrofoam SM Insulation


Styrofoam Brand SM Extruded Polystyrene Foam Insulation is a versatile, multipurpose extruded polystyrene board that fits the needs of the commercial and residential foundation and slab market.

Styrofoam Brand SM Insulation’s closed-cell structure resists water absorption, enabling it to retain a high R-value (RSI)** over time, a necessary property in below-grade residential foundation applications. It helps to protect foundation dampproofing and waterproofing, especially during backfilling.  It also provides a secondary barrier against groundwater leakage.


Features & benefits of Dupont Styrofoam SM

  • Bonds dry, treated, damp and frozen surfaces
  • Can be used under almost all weather conditions
  • Enhanced productivity
  • Excellent adhesion
  • Impact resistant

Additional information


1.5" x 2' x 8' SHEET, 1" x 2' x 8' SHEET, 2.5" x 2' x 8' SHEET, 2" x 2' x 8' SHEET, 3" x 2' x 8' SHEET, 4" x 2' x 8' SHEET, 50MM x 600MM x 2400MM SHEET, 75MM x 600MM x 2400MM SHEET


Butt Edge, Shiplap


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