Lloyd Alter is Design Editor for Treehugger and teaches Sustainable Design at Ryerson University in Toronto. As a writer about green design, I hold some opinions that consistently attract tremendous ...

Extruded polystyrene (XPS) insulation is a rigid foam insulation commonly used in the construction industry to improve building energy efficiency. It is made of polystyrene resin and other additives ...

Lightweight and versatile, molded polystyrene foam is a commercial building material that despite being commonly used remains somewhat misunderstood. Frequently identified by the misnomer Styrofoam, ...

Expanded polystyrene (EPS) is a lightweight, versatile material used in packaging, insulation, industrial and consumer goods. Despite its recyclability, misconceptions often categorize EPS alongside ...

In a recent post on a foam insulation system I noted that “I have been called an idiot so many times by people who point out that foam insulation works really well and that it pays back the carbon and ...

Polystyrene—most familiarly produced as foams, including Styrofoam—has given the world cheap, lightweight insulation and containers for taking food to go. But the material biodegrades so slowly that ...

British company Carbon Cell has used agricultural waste to make a carbon-negative and compostable alternative to polystyrene packaging and building insulation that avoids contributing to plastic ...

Polystyrene — the plastic America loves to hate — wants a second chance. Used in foam cups, packaging peanuts and the molded ...

IKO Industries Inc. will build a new C$45 million (US$33.7 million) extruded polystyrene insulation plant in Brantford, Ontario. The Toronto-based maker of roofing, insulation and waterproofing ...