Abstract: An improved method of construction for thermal and acoustic insulation blankets is provided wherein a ceramic fiber thermal insulation core is cut along pattern lines and a acoustically insulating thin sheet of lead is molded in conformance with the shape of the ceramic fiber core. A thin, stainless steel foil/fiberglass cloth laminate is placed along the inner most surface of the insulation core so that the laminate serves as a barrier between the insulation core and the object being insulated. A silicone-rubber coated fiberglass cloth is wrapped around the insulation core and accompanying layers of insulation, and the fiberglass cloth is stitched with stainless steel staples. The blanket is then provided with an outer jacket comprised of a flexible knitted, stainless steel wire mesh to form a stocking containing the insulation blanket. The ends of the stocking are stitched with stainless steel staples.