Polyglass U.S.A., Inc. > DuPont™ Styrofoam™ Products

DuPont™ Styrofoam™ Products

DuPont Insulation is Approved by Polyglass

The closed-cell structure Styrofoam™ Brand XPS Insulation is the design choice for buildings that withstand the elements and the test of time. Styrofoam™ Brand XPS Insulation delivers a layer of continuous insulation around foundations and slabs, protecting buildings and homes from energy loss and moisture intrusion.

Features and Benefits

  • Long-term high R value
  • Superior moisture resistance
  • High compression strength (up to 100 psi) for excellent durability and damage resistance
  • Long-term performance for low-cycle cost
  • Reusable/Recyclable/Sustainable
  • Certified average 20% pre-consumer recycled content
  • Low VOC compliance


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DuPont™️ Styrofoam™️ Brand Highload 40,60 and 100 XPS Foam Insulation

Subfloor Thermal Insulation for Low-Temperature Applications U.S. HFC Regulation Compliant Formulation

DuPont™️ Styrofoam™️ Brand Plazamate™️ Insulation

Sturdy, Moisture-Resistant Insulation

DuPont™️ Styrofoam™️ Brand Roofmate™️ XPS Foam Insulation

Water-Resistant Insulation for Protected Membrane Roofing Systems

DuPont™️ Styrofoam™️ Brand Square Edge XPS Insulation

Water-Resistant Insulation for Attics, Foundations, Conventional Roofs and Crawl Spaces U.S. HFC Regulation Compliant Formulation

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Why Polyglass?

Polyglass® is an ISO 9001:2015 Certified, leading manufacturer of modified bitumen roofing and waterproofing membranes and roof coatings for low- and steep-slope applications. We are an industry leader in self-adhered underlayments that are specially designed to help contractors save time and labor costs.

Utilizing the most technologically advanced manufacturing process in the industry, Polyglass operates six state-of-the-art manufacturing facilities — five in North America and one in Italy that serves all of Europe.

As a company that prides itself in innovative and quality roofing products that exceed the needs and expectations of its customers all around the world, we offer roofing contractors the following benefits:

  • An extensive line of underlayments and other roofing products that allow for custom-designed solutions for unique construction challenges and environmental conditions
  • Outstanding technical support and project assistance
  • The most trusted warranties in the industry
  • A registered contractor program and a wide array of contractor resources, including instructional videos to Polyschool courses.
  • The ability to earn points and redeem prizes for every Polyglass purchase with Club Premio