Patent ID: 8511037

Claim:
A method of constructing an insulated concrete form structure having a structure opening through the structure, the structure opening defined by form edges and opening forms bonded to a concrete core of the structure, the method comprising: erecting a set of spaced apart forms on a base; positioning opening forms in the space between the forms around a form opening through the forms, and leaving an opening forms gap at a lower portion of the forms opening; securing the opening forms around the form opening; and, pouring a first pour of concrete to fill the space between the forms up to the gap of opening forms; positioning opening forms to close the opening forms gap and allowing the first pour of concrete to set; pouring a second pour of concrete to fill the space between the forms from the top of the first pour around the opening forms to a top portion of the forms; whereby the opening forms bond to the concrete core, the opening forms and the form edges defining the structure opening.