1 A Comprehensive Guide to Insulated Concrete Forms: Side View of Fox Blocks Used for ICF Homes Project in Virginia. Photo Credit: Maria Saxton Introduction In the dynamic world of construction, innovations constantly emerge, reshaping the way we build structures. Among these, Insulated Concrete Form (ICF) construction has gained prominence, offering a unique blend of concrete strength and insulating foam properties. This guide is tailored to provide an in-depth understanding of ICF construction, specifically focusing on its applications for manufactured and modular homes in the Northeastern United States. ICF wall construction. Photo by Wayne Groszko Understanding ICF Construction 1. What are Insulated Concrete Forms (ICFs)? ICF construction centers on interlocking hollow blocks or panels made from insulating materials like expanded polystyrene (EPS) or extruded polystyrene (XPS). These forms are then filled with reinforced concrete, serving as both the structural framework and insul