DuPont™ Styrofoam™ Brand ST-100 Series XPS Insulation is only available in select U.S. states.
Styrofoam™ Brand ST-100 Series XPS ICC-ESR-4755 Code Report
Styrofoam™ Brand ST-100 Series XPS – U.S. HFC Regulation Compliant*
Map data current as of January 21, 2021
Styrofoam™ Brand ST-100 Series XPS
Traditional Styrofoam™ Brand XPS
Mix of Traditional and New ST-100
*Starting March 2021, newly formulated Styrofoam™ Brand ST-100 insulation foam produced for regulated U.S. states is grey in color and approved for residential below-grade and above-grade wall building applications as described in new ICC-ESR 4755.
*Note: Traditional Blue Styrofoam™ Brand XPS produced prior to January 1, 2021 is still compliant under ICC-ESR 2142 in regulated states.
