Insulfoam is a Carlisle Construction Materials Company (NYSE: CSL), and is one of the nation's largest manufacturers of block-molded expanded polystyrene (EPS). For over 50 years, Insulfoam has been enabling building professionals to construct high-quality building insulation systems at a minimal cost. With the widest range of faced, laminated and standard high-performance EPS insulation products, Insulfoam has the right products for any insulation application while still providing the highest R-Value per dollar over any other rigid insulation.