The most advanced 'enhanced' grey EPS formulation now offers the opportunity to achieve the lowest lambda values using these new robust construction details endorsed by the Energy Saving Trust. With its BRE 'A-plus' rating, EPS is the best choice for under-floor, between-floor, walling and roofing applications where it gives a constant insulation value across the full service life of a building. EPS also comes closest of any modern building material to fulfilling the 60-year performance life target set by the UK Building Regulations. When it comes to insulation, EPS stands for Economy, Performance and Sustainability.