When comparing EPS (expanded polystyrene) and XPS (extruded polystyrene) for insulation, both materials have their unique advantages. The choice often depends on specific project requirements.

EPS is known for its cost-effectiveness and high R-value per pound, making it an efficient insulator. It’s also lightweight, easy to handle and can be recycled, appealing to eco-conscious projects. Its breathability makes it less susceptible to moisture retention, reducing the risk of mould growth.

XPS, on the other hand, typically offers a higher R-value per inch than EPS, meaning it can provide slightly better insulation in thinner applications. It’s also more moisture-resistant than EPS, making it a preferred choice in environments where water exposure is a concern. however, XPS tends to be more expensive.