Styrofoam is a brand of closed-cell extruded polystyrene foam (XPS), manufactured to provide continuous building insulation board used in walls, roofs, and foundations as thermal insulation and …

Since its invention in 1941, Styrofoam™ Brand extruded polystyrene (XPS) has built a rich, storied heritage as an innovative, sustainable building product – creating an entire insulation material category.

Jan 13, 2026 · What is Styrofoam? It’s more than just foam cups! Learn about EPS, XPS, and #4 Styrofoam, their differences, and whether they can be recycled.

Foam board insulation can be used in many parts of your home to improve comfort and energy efficiency. It works great for areas like garage, camper/rv/trailer, and exterior sheathing.

If you’re interested in insulating with STYROFOAM, note that STYROFOAM insulation is a type of extruded insulation. Polyisocyanurate is another option, coming in as the densest and most …

Jun 4, 2025 · Demystify Styrofoam! Our ultimate guide explains what Styrofoam (XPS) truly is, its key properties, how it differs from EPS foam, and its diverse uses, updated for June 2025.

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Oct 20, 2025 · What is Styrofoam, Really? Although most people use the term “Styrofoam” for all foamy plastics, it refers to a trademarked brand of polystyrene foam used mainly in building insulation.

STYROFOAM™ is a registered trademark of the DuPont Chemical Company (“DuPont”) or an affiliated company of DuPont. The trademark covers a full range of extruded polystyrene building products …

Styrofoam, often recognized for its lightness and insulating properties, is a popular material used in various industries. From packaging and insulation to arts and crafts, Styrofoam provides unique …