EPS (expanded polystyrene) is regularly used in commercial, industrial and residential applications as a key component in Exterior Insulation Finishing Systems (EIFS). The high thermal value, excellent moisture resistance, dense, easily textured, dimensionally stable, and resistance to physical and environmental abuse makes EPS the preferred exterior insulation used with exterior wall systems FMI-EPS is Commencement Bay’s supplier of Dryvit EPS Outsulation.