To provide a heat insulating wall being unbreakable even if a vacuum heat insulating material is fixed by using a tucker, nails, screws or the like and being easily constructed.
This heat insulating wall is composed of a plurality of columns 2, a stud 3 arranged between the columns 2, an interior wall material 4 provided on an indoor side of the column 2 and the stud 3, the vacuum heat insulating material 5 arranged in at least a part on an indoor side face of the interior wall material 4, furring strips 6, and a thrust preventive plate 7 fixed on an indoor side of the furring strips 6. The vacuum heat insulating material 5 is constituted by sealing a tabular core material by an outer covering having a heat deposited layer 11 on an inner face and having gas barrier property by reducing pressure and has a core material part 14 having the core material between the outer coverings when viewed in the direction of thickness of the core material, a non-core material part 15 having no core material between the outer coverings, and a thermally deposited portion constituted by thermally depositing the outer coverings mutually in the non-core material part 15 at the outer periphery of the core material to surround the core material. The furring strips 6 are arranged on an indoor side face of the non-core material part 15 of the vacuum heat insulating material 5. The core material part 14 is arranged to prevent both of the column 2 and the stud 3 from existing at a position on a reverse face where the core material part 14 of the interior wall material 4 is positioned.
Hiroki Naito
Daisuke Nagano