EPS 70-040 Facade Styrofoam for Facades and Floors. EPS 70-040 boards are used as an insulating element in areas of mechanical stress, and are a suitable insulating material in building exterior wall insulation systems. EPS 70-040 is recommended for exterior walls, exterior walls using the lightweight-dry method, three-layer masonry walls, and frame partition walls. The product can also be used as flooring, thermal insulation for floors in areas of mechanical stress, and for rafter roofs. EPS 70-040 boards are available in dimensions of 500×1000 mm. Standard thicknesses range from 10 to 200 mm in 10 mm increments. Larger boards are also available upon request, as well as milled boards from 50 mm. This facade Styrofoam is designed for construction and is PZH-approved.