Patent ID: 8782981

Claim:
A structural unit comprising: a first face shell having a first edge and a second edge; a second face shell having a first edge and a second edge, the second face shell positioned opposite the first face shell; at least one central web connecting the first face shell to the second face shell; a first partial web extending from the first edge of the first face shell toward the first edge of the second face shell and forming a gap between an end of the first partial web and the first edge of the second face shell, wherein a first cavity is defined by the first face shell, the second face shell, the at least one central web, and the first partial web; a second partial web extending from the second edge of the first face shell toward the second edge of the second face shell and forming a gap between an end of the second partial web and the second edge of the second face shell, wherein a second cavity is defined by the first face shell, the second face shell, the at least one central web, and the second partial web; a first insulation material provided in at least one of the first and second cavities; and a second insulation material provided within at least a portion of the first insulation material, wherein the second insulation material is a two-component material formed by mixing a first insulation component and a second insulation component, wherein the first insulation component is stored in a first container and the second insulation component is stored in a second container, and wherein, upon release from the first and second containers, the first and second insulation components mix to form the second insulation material.