EPS / Green Building & Sustainable Home Renovation Information & Advice

Closed-cell structure of rigid foam insulation board with trapped gas
Insulation and soundproofing

Thermal Drift in Foam Insulation: Understanding R-Values in Insulation, Why They Change and Degrade Over Time

...EPS) and Graphite-Enhanced EPS (G-EPS): These materials use air (or a mix of air/graphite in G-EPS) as the primary insulating agent. Their R-values are considered stable and do not exhibit the same dramatic temperature dependence as Polyiso. To provide a more accurate picture, many manufacturers (especially those sell...

Black Graphite EPS foam Panels as Part of a Prefab Wall. Image © Feris Buid Tech
Insulation and soundproofing

Graphite-Enhanced EPS (GPS): The Next Generation Rigid Foam Insulation

...EPS (GPS/G-EPS)? Graphite-Enhanced Expanded Polystyrene (G-EPS) is an advanced form of traditional EPS foam. It is manufactured by incorporating fine particles of high-purity graphite into the raw polystyrene beads before they are expanded and molded into insulation boards. These graphite particles give the foam its di...

Is EPS foam eco-friendly? Exterior home insulation rigid foam panels
Insulation and soundproofing

Does plastic foam or Styrofoam insulation have a place in green building?

...EPS foam insulation or ‘Styrofoam insulation’ as it is often mistakenly called, which it isn’t. It may seem like splitting hairs, but Styrofoam is a brand name of XPS insulation, it is not EPS insulation, and environmentally speaking they're very different - read more here. A good part of the reason why EPS foam insula...