Insulated Concrete Forms (or ICFs) are polystyreneforms or molds that have a built-in plastic web for structural support, and insulate reinforced concrete poured into the mold. The first patent application for an ICF was registered in the late 1960’s. Since then, and particularly in the last 4 years, ICFs have been fast-becoming the mainstream preferred building product worldwide for all of the right reasons. These large, hollow polystyrene blocks are stacked right off of the truck and filled with reinforcing bar and concrete. The end result leaves you with a high-performing wall that is structurally sound, insulated, strapped, has a vapor barrier and is ready to accept final exterior and interior finishes.