Commercial builders count on protection for below-grade solutions


Energy-efficient, resilient building from the ground up

DuPont’s science-based insulation materials are durable and easy to install, making them ideal for commercial slab foundations and interior and exterior below-grade walls. Proven thermal and moisture protection is critical for energy-efficient, resilient buildings. Build in that protection from the ground up with DuPont.

Cutaway image of DuPont™ Brand Styrofoam™ installed below foundation layers

Design with the future in mind

Rigid foam insulation products from DuPont offer excellent insulation and moisture protection, ensuring that buildings constructed today will still be performing long into the future.

  • High compression strength (up to 100 psi) for excellent durability and damage resistance
  • Superior moisture resistance
  • Consistent R-value performance over time and temperature range
Styrofoam™ Brand Perimate™ installed below-grade

Work smarter, not harder

Durable construction doesn’t have to be heavy or complicated. DuPont™ Styrofoam™ Brand Extruded Polystyrene materials make it easy to build in needed protection.

  • Lightweight products are easy to handle; one person can safely handle materials on their own
  • Cuttable, easy-to-use materials simplify installation
  • A robust product line tailored to specific needs handles a wide range of job site demands

Featured products

Styrofoam™ Brand Square Edge
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Styrofoam™ Brand Highload
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Styrofoam™ Brand Perimate™
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