VACUUM HEAT INSULATION MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a vacuum heat insulation material excellent in heat insulation characteristic, and capable of easily forming a corner part with high reliability.SOLUTION: A vacuum heat insulation material has a core material containing inorganic fibrous aggregate, and an outer packaging material covering at least one side surface of the core material; and is subjected to decompression sealing thereinside. The outer packaging material has an outermost resin layer, and a radiation prevention layer inside the resin layer. The radiation prevention layer partially has an overlapping part in which at least two or more radiation prevention layers are laminated.SELECTED DRAWING: Figure 2