Expanded Polystyrene (EPS) insulation is often misunderstood – particularly when it comes to its safety and performance. At Benx Facades, we’re here to clear up the confusion and explain why EPS Insulation is a trusted solution for modern retrofitting.
Why EPS is Used in Retrofitting
EPS is a popular material in retrofit projects thanks to its outstanding thermal resistance. It helps reduce heat loss and improve energy efficiency — a major benefit for aging buildings. Its closed-cell structure gives it low water absorption and excellent durability, making it perfect for long-term performance in External Wall Insulation (EWI) systems.
Plus, by helping reduce carbon emissions, EPS supports sustainable construction aligned with the UK’s Net Zero goals.
Common Questions About EPS Safety
Is EPS Highly Flammable?
This is one of the most common misconceptions. While EPS is a plastic-based material, it’s treated with flame retardants that significantly slow down flame spread. Our EPS products comply with strict safety standards, including BS EN 13501-1, and are suitable for low-rise buildings when installed with the correct detailing and fire protection.
Does EPS Emit Toxic Fumes in a Fire?
All materials emit gases in fire conditions, even wood. EPS primarily releases water vapour and carbon dioxide — emissions that are comparable to many common construction materials and remain within acceptable safety levels.
Is EPS Environmentally Friendly?
Absolutely. EPS is durable, 100% recyclable, and resistant to moisture, bacteria, and corrosion. Thanks to its long lifespan and insulation properties, it contributes to lower energy bills and more sustainable buildings.
EPS in Real Projects
At Benx, we’ve supplied EPS Insulation for numerous retrofit schemes across the UK. In every case, it has proven to be a cost-effective, safe, and thermally efficient solution — helping clients meet regulations and budgets while upgrading the performance of existing buildings.
Summary
EPS Insulation from Benx Facades is a tried-and-tested choice for retrofit projects. With excellent fire safety when correctly installed, proven thermal performance, and sustainability credentials, EPS is a smart option for specifiers, installers, and housing providers looking to improve building performance without compromising on safety or cost.
Explore our EPS Insulation range here: https://benx.co.uk/products/eps/
Ready to get started? Contact the Benx team for technical support and project advice.