The use of insulated metal sandwich panels provide value because of their unparalleled thermal insulation features. These panels allow maintaining a constant low temperature in cold storage facilities which helps save energy for refrigeration. Used as a core material in the made and Precast Sandwich Panels, these materials include polypropylene foam, rock wool, and polystyrene aids in construction and residential energy efficient heating and cooling systems which drastically decreases energy expenditures. In addition, the panels improve ease by enabling sound absorption, while the metal facings provide polarized strength and durability making the panel sets appropriate for external walls and roofs of buildings.