| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat insulating wall which has excellent heat insulating performance and can be easily constructed. SOLUTION: In the heat insulating wall 1, a vacuum heat insulating material 4 and a furring strip 6 are secured to the inner wall 2 with tackers 3, 5 and a finish plate 8 covering the vacuum heat insulating material 4 and the furring strip 6 from indoor side is secured to the furring strip 6 and inner wall 2 with nails 7 penetrating through the finish plate 8 and furring strip 6 into the inner wall 2. The heat insulating material 4 is formed by covering the core material 11 made of unsolidified inorganic fiber with a casing material 10 composed of a flexible laminated film having gas barrier property and by decompressing the inside of the casing material 10. The fin portion in the outer periphery of the vacuum heat insulating material 4 is provided with a thermally welded portion wherein the mutual casing materials opposed to the outer peripheral side of the fin portion are thermally welded together, and with a nonthermally welded portion wherein the mutual casing materials 10 opposed to the inner peripheral side of the thermally welded portion are only tightly contacted together under an atmospheric pressure but not thermally welded, causing a damaged vacuum heat insulating material 4 to be inflated and a finish plate 8 at the portion opposed to the damaged vacuum heat insulating material 4 to be also inflated. COPYRIGHT: (C)2009,JPO&INPIT
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