A heat shield bladder includes first and second sheets of insulating material that form a bladder between the first and second sheets. At least one reflective foil is disposed within the bladder and a plurality of spacers are disposed within the bladder and positioned to space the at least one reflective foil from the first and second sheets of insulating material. Multiple reflective foils may be disposed within the bladder with spacers between each reflective foil. The heat shield bladder may be rolled into a tube shaped and used inside a pipe or formed into panels that may be used to line a vessel.