Insulfoam is proud to be the nation’s largest manufacturer of block-molded expanded polystyrene (EPS) insulation. With manufacturing facilities across the United States, Insulfoam has been providing simple solutions for the complex needs of architects, contractors, engineers, homeowners and specifiers for more than 35 years. Offered under the InsulFoam® and R-Tech® brands, Insulfoam’s high-performance insulation is available in custom and pre-cut forms for virtually every construction application, including roofing insulation, below-grade insulation and protection boards, below slab, cavity walls, void fill, knock-outs, architectural shapes, EIF systems, geofoam and stadium seating, as well as pre-cast and pre-stress panel applications.