insulation material is configured to provide improved insulating properties in a shipping container . a sheet of insulation material is placed aong the bottom of a container under the contents of the container . an insulating blanket constructed of plastic sheets sealed around their periphery to form a pouch for containing scored paperboard and scored mineral wool is configured to have an inverted u - shape and is placed over a bottom half of the container . a top half of the container is then placed over the bottom half such that the legs of the inverted u - shaped material are between the overlapping side of top and bottom of the container and the middle portion of the u - shaped material is between the top of the container and the contents within the container . a method of scoring mineral wool positioned between plastic sheets is also provided .