Energy Edge products form, protect and insulate the slab edge. 

Energy Edge^® products insulate the outside edge of the building slab.  All parts of the building are routinely insulated-- except for the slab edge.  Slab construction crews simply use Energy Edge "rails" in place of, or inside their usual wooden form boards.  Unlike traditional forming boards, the rails remain in place to protect and insulate the slab edge.  These assemblies are compatible with most construction techniques, compliment numerous building systems, and are required by most energy codes