JP2009197532A - Heat insulating wall and house applied with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulating wall which has excellent heat insulating performance and can be easily constructed. <P>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. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a heat insulating wall using a vacuum heat insulating material for a wall of a building and a house in which the heat insulating wall is applied to any one of a wall, a ceiling, and a floor constituting an indoor space.

  In recent years, from the viewpoint of suppressing global warming (protecting the global environment), energy savings for buildings such as houses as well as energy savings for home appliances and industrial equipment have become important issues. Therefore, various heat insulating materials and various heat insulating walls have been proposed (see, for example, Non-Patent Document 1 and Patent Document 1).

  As shown in Non-Patent Document 1, the insulation of the second-floor ceiling and the first-floor floor of a conventional wooden house with a level of energy conservation standards in 1980 (24-year-old wooden conventional frame construction method 2-story house) In the case of the above, the existing heat insulation of the hut is left on the ceiling, and a new heat insulating material is blown on the ceiling. On the floor, the heat insulating material is filled from under the floor to the joists, and the same heat insulating material is filled under the joists. Construction is done by 3 workers (about 5 hours) and 1 supervisor, 5 workers (about 10 hours) and 2 supervisors, respectively, and costs about 160,000 yen and 370,000 yen.

FIG. 16 is a schematic cross-sectional view of a conventional heat insulating wall disclosed in Patent Document 1. As shown in FIG. As shown in FIG. 16, the conventional heat insulating wall in Patent Document 1 has a plurality of substantially trapezoidal trunk edges 103 fixed on a base 101 on which a board 102 is formed on a housing α, and single-sided adhesive on the trunk edge 103. A tape is attached, and an in-situ foam-type synthetic resin foam 104 is sprayed on the entire wall base and formed so that a space 105 is formed between the trunk edges 103. The surface is exposed, and the dry wall material 107 is constructed on the trunk edge 103.
Hiroaki Saito et al., “Verification of practical thermal insulation retrofit method for conventional wooden houses with energy conservation standard level in 1980”, Building Research Institute, Independent Administrative Agency, 2006 JP 7-11717 A

  However, in the actual insulation improvement (Non-Patent Document 1), the construction of the ceiling on the second floor requires about 160,000 yen for three workers (about 5 hours) and one supervisor. Costs about 370,000 yen for 5 workers (about 10 hours) and 2 supervisors.

  Moreover, in the conventional heat insulation wall by patent document 1, in order to improve the heat insulation performance of a housing driving body, the several trapezoid trunk edge 103 is fixed on the base | substrate 101, and the single-sided adhesive tape is stuck on the trunk edge 103. FIG. Then, an in-situ foam type synthetic resin foam 104 is sprayed on the entire surface of the wall base 101 and a space 105 is formed between the trunk edges 103. Next, the surface of the trunk edge 103 is exposed by peeling the single-sided adhesive tape, and the waterproof sheet 106 and the dry wall material 107 are applied on the trunk edge 103 with the adhesive tape attached to the surface of the trunk edge 103.

  As described above, full-scale construction is involved in the heat insulation repair, and it is difficult to easily perform high-performance heat insulation repair.

  In view of the above problems, an object of the present invention is to provide a heat insulating wall that can be easily constructed and has good heat insulating performance and a house to which the heat insulating wall is applied.

  In order to achieve the above object, the heat insulating wall of the present invention fixes a vacuum heat insulating material and a body edge having a thickness equal to or greater than the thickness of the vacuum heat insulating material to the inner surface of the inner wall, and the vacuum heat insulating material. A heat insulating wall formed by fixing a finishing plate that covers the body edge from the indoor side to the body edge, wherein the vacuum heat insulating material is a core made of inorganic fibers not solidified by a binder treatment or a heat molding treatment. The material is covered with a jacket material made of a gas-permeable and flexible laminate film, and the inside of the jacket material is decompressed.

  Thus, the vacuum heat insulating material and the body edge having a thickness equal to or larger than the thickness of the vacuum heat insulating material are respectively fixed to the indoor side surface of the inner wall (existing wall or wall base), and then the finish plate is attached to the vacuum heat insulating material. By fixing the material and the body edge to the body edge so as to cover from the indoor side, it is possible to obtain a heat insulation wall that can be easily constructed and has good heat insulation performance without using foam heat insulating material. It is not necessary to dismantle the existing wall, and it is possible to easily insulate the wall at a level close to the replacement of the wallpaper. It is done.

  Moreover, since the heat insulation performance is very excellent compared with general-purpose heat insulating materials such as styrene foam, the vacuum heat insulating material can reduce the thickness of the heat insulating material portion, and as a result, the heat insulating wall can be thinned. Moreover, when the inner wall which fixes a vacuum heat insulating material is used as an existing wall, since the protruding dimension of the wall surface to the indoor side by using the heat insulating wall can be reduced, the applicable range without problems is wide and practical.

  Further, the vacuum heat insulating material directly covers the core material made of inorganic fibers that have not been solidified by the binder treatment or the heat molding treatment with the jacket material made of a gas barrier and flexible laminate film, and covers the inside of the jacket material. Since the pressure is reduced, when the internal vacuum is held, it is held down by atmospheric pressure, so it can hold the predetermined thickness, but if the vacuum can not be maintained due to the breakage of the jacket material, Since the invaded air enters between the inorganic fibers that are not solidified and the inorganic fibers try to return to the state under atmospheric pressure, the vacuum heat insulating material swells, so that the vacuum heat insulation fixed to the indoor side surface of the inner wall If it is before fixing a finishing board, the broken bag of material can be confirmed by expansion | swelling of a vacuum heat insulating material, and the effect which can replace | exchange the broken vacuum heat insulating material is acquired. In addition, if the vacuum insulation material swells due to bag breakage, if the finish plate of the portion facing the broken vacuum insulation material is swelled, even after the finish plate is fixed, The breakage of the vacuum heat insulating material fixed to the surface can be confirmed by the deformation of the finish plate accompanying the expansion of the vacuum heat insulating material, and the effect of exchanging the broken vacuum heat insulating material can be obtained.

  Moreover, since the house which applied the heat insulation wall of this invention to either the wall which comprises indoor space, a ceiling, or a floor is excellent in heat insulation performance, a comfortable space can be implement | achieved with little air-conditioning energy (air-conditioning expense).

  The heat insulating wall of the present invention can be easily constructed without using a foam heat insulating material, and can obtain a heat insulating wall with good heat insulating performance. When an existing wall is used as a heat insulating wall, it is necessary to disassemble the existing wall. In addition, since it is possible to easily reinforce the insulation at a level close to the replacement of wallpaper, an advantageous effect can be obtained in terms of construction period and construction cost.

  Moreover, the heat insulating wall can be made thin. Moreover, when the inner wall which fixes a vacuum heat insulating material is used as an existing wall, since the protruding dimension of the wall surface to the indoor side by using the heat insulating wall can be reduced, the applicable range without problems is wide and practical.

  In addition, it is possible to easily confirm the breakage of the vacuum heat insulating material and to obtain an effect of replacing the broken vacuum heat insulating material.

  Moreover, since the house which applied the heat insulation wall of this invention to either the wall which comprises indoor space, a ceiling, or a floor is excellent in heat insulation performance, a comfortable space can be implement | achieved with little air-conditioning energy (air-conditioning expense).

  The invention of the heat insulating wall according to claim 1 fixes a vacuum heat insulating material and a body edge having a thickness equal to or greater than a thickness of the vacuum heat insulating material to a surface of the inner wall on the indoor side, and the vacuum heat insulating material and the body edge. Is a heat insulating wall formed by fixing a finishing plate that covers the interior from the interior side to the body edge, and the vacuum heat insulating material is a core material made of inorganic fibers not solidified by a binder treatment or a heat molding treatment, The outer cover material is covered with a cover material made of a flexible laminate film with gas barrier properties, and the inside of the cover material is decompressed.

  Thus, the vacuum heat insulating material and the body edge having a thickness equal to or larger than the thickness of the vacuum heat insulating material are respectively fixed to the indoor side surface of the inner wall (existing wall or wall base), and then the finish plate is attached to the vacuum heat insulating material. By fixing the material and the body edge to the body edge so as to cover from the indoor side, it is possible to obtain a heat insulation wall that can be easily constructed and has good heat insulation performance without using foam heat insulating material. It is not necessary to dismantle the existing wall, and it is possible to easily insulate the wall at a level close to the replacement of the wallpaper. It is done.

  Moreover, since the heat insulation performance is very excellent compared with general-purpose heat insulating materials such as styrene foam, the vacuum heat insulating material can reduce the thickness of the heat insulating material portion, and as a result, the heat insulating wall can be thinned. Moreover, when the inner wall which fixes a vacuum heat insulating material is used as an existing wall, since the protruding dimension of the wall surface to the indoor side by using the heat insulating wall can be reduced, the applicable range without problems is wide and practical.

  Further, the vacuum heat insulating material directly covers the core material made of inorganic fibers that have not been solidified by the binder treatment or the heat molding treatment with the jacket material made of a gas barrier and flexible laminate film, and covers the inside of the jacket material. Since the pressure is reduced, when the internal vacuum is held, it is held down by atmospheric pressure, so it can hold the predetermined thickness, but if the vacuum can not be maintained due to the breakage of the jacket material, Since the invaded air enters between the inorganic fibers that are not solidified and the inorganic fibers try to return to the state under atmospheric pressure, the vacuum heat insulating material swells, so that the vacuum heat insulation fixed to the indoor side surface of the inner wall If it is before fixing a finishing board, the broken bag of material can be confirmed by expansion | swelling of a vacuum heat insulating material, and the effect which can replace | exchange the broken vacuum heat insulating material is acquired. In addition, if the vacuum insulation material swells due to bag breakage, if the finish plate of the portion facing the broken vacuum insulation material is swelled, even after the finish plate is fixed, The breakage of the vacuum heat insulating material fixed to the surface can be confirmed by the deformation of the finish plate accompanying the expansion of the vacuum heat insulating material, and the effect of exchanging the broken vacuum heat insulating material can be obtained.

  In addition, when fixing the vacuum heat insulating material and the trunk edge to the indoor side surface of the inner wall so that the vacuum heat insulating material and the trunk edge overlap, the core material is sandwiched between the outer jacket materials on the outer periphery of the vacuum heat insulating material. It is preferable that the trunk edge is overlapped on the indoor side of the non-existing portion (fin portion). In this case, the vacuum heat insulating material can be firmly fixed to the surface of the inner wall on the indoor side, and an effect can be obtained in which deformation of the finished plate due to the corrugation of the fin portion of the vacuum heat insulating material can be prevented. In addition, fixing the drum edge to the inner wall after fixing the vacuum heat insulating material to the inner wall is easier to deal with the dimensional variation of the vacuum heat insulating material than fixing the vacuum heat insulating material to the inner wall after fixing the drum edge to the inner wall. .

  Moreover, the invention of the heat insulation wall according to claim 2 is the fin portion according to the invention according to claim 1, in which the outer jacket materials facing each other without interposing the core material between the outer peripheral portions of the vacuum heat insulating material. The fin portion is opposed to the outer peripheral side of the fin portion on the inner peripheral side of the thermal weld portion, and the thermal weld portion in which the outer jacket materials facing the entire circumference of the fin portion are thermally welded to each other. There is a non-thermally welded portion having a predetermined width or more that is not thermally welded, but the jacket materials are in close contact with each other at atmospheric pressure. When the vacuum state cannot be maintained, the facing jacket materials of the non-thermally welded parts are separated from each other, and the vacuum heat insulating material expands greatly, making it easier to find the vacuum heat insulating bag breakage and the vacuum heat insulating material. The effect of being able to find a broken bag sooner.

  Moreover, the invention of the heat insulation wall according to claim 3 is the invention according to claim 1 or 2, wherein the thickness of the trunk edge is substantially the same as the thickness of the vacuum heat insulating material, and the bag breakage of the vacuum heat insulating material. Can be found sooner. In particular, after fixing the finishing plate, the effect of expansion of the vacuum heat insulating material appears on the finishing plate early, so that the effect of detecting the vacuum heat insulating bag breakage earlier can be obtained.

  In addition, the invention of the heat insulation wall according to claim 4 is the invention according to claim 3, wherein the outer cover material of the vacuum heat insulating material is damaged and the pressure inside the outer cover material is increased. The vacuum heat insulating material swells and the thickness becomes thicker than the thickness of the trunk edge, and the finish plate of the part facing the damaged vacuum heat insulating material swells, and the vacuum heat insulating material swelled by breaking (bag breaking) and By configuring the facing finish plate so that it swells, multiple vacuum insulations are fixed to the inner surface of the inner wall, and if any of the multiple vacuum insulations breaks (breaks the bag) The effect that it is easy to specify the position of the vacuum heat insulating material that has been (broken) is obtained.

  Moreover, since the invention of the house of Claim 5 applied the heat insulation wall as described in any one of Claim 1 to 4 to the wall, ceiling, or floor which comprises indoor space, It has excellent heat insulation performance and can realize a comfortable space with little air conditioning energy (cooling and heating costs).

  Next, the constituent materials of the vacuum heat insulating material will be described in detail.

  As the inorganic fiber used for the core material, known materials such as glass wool, glass fiber, alumina fiber, silica alumina fiber, silica fiber, rock wool and the like can be used.

  The laminate film used for the jacket material is a laminate film in which the innermost layer is a heat-welded layer, the middle layer is a gas barrier layer, a metal foil or a metal vapor-deposited layer, and the outermost layer is provided with a surface protective layer Is applicable. In addition, the laminate film may be applied by combining two types of laminate films, ie, a laminate film having a metal foil and a laminate film having a metal vapor deposition layer.

  In addition, as a heat welding layer, a low density polyethylene film, a chain low density polyethylene film, a high density polyethylene film, a polypropylene film, a polyacrylonitrile film, an unstretched polyethylene terephthalate film, an ethylene-vinyl alcohol copolymer film, or those A mixture or the like can be used.

  As the surface protective layer, known materials such as nylon film, polyethylene terephthalate film, and stretched polypropylene film can be used.

  Embodiments according to the present invention will be described below with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view of a heat insulating wall according to Embodiment 1 of the present invention when it is cut up and down on a horizontal plane and the lower cut surface is viewed from above, and FIG. 2 is a vacuum used for the heat insulating wall of the same embodiment. 3 is a cross-sectional view of the heat insulating material, FIG. 3 is a plan view of the vacuum heat insulating material used for the heat insulating wall of the embodiment, and FIG. 4 is a plan view showing a state in which the vacuum heat insulating material is attached to the inner wall of the heat insulating wall of the same embodiment. FIG. 5 is a plan view showing a state in which a plurality of vacuum heat insulating materials have been attached to the inner wall of the heat insulating wall of the embodiment, and FIG. 6 is a room interior side of the plurality of vacuum heat insulating materials on the inner wall of the heat insulating wall of the same embodiment. FIG. 7 is a plan view showing a state in which the finishing plate is fixed to the left and center trunk edges among the trunk edges fixed to the inner wall of the heat insulating wall of the embodiment. 8 is a plan view of the heat insulating wall of the embodiment as viewed from the indoor side.

  Further, FIG. 9 is an enlarged cross-sectional view of a main part when the lower cut surface is viewed from above by cutting up and down on a horizontal plane showing the step of arranging the vacuum heat insulating material on the inner wall of the heat insulating wall of the embodiment, FIG. 10 is a cross-sectional view in the case of cutting up and down on a horizontal plane showing a process of fixing a plurality of vacuum heat insulating materials to the inner wall of the heat insulating wall of the same embodiment, and viewing the lower cut surface from above, FIG. Sectional drawing at the time of cut | disconnecting up and down by the horizontal plane which shows the process of fixing a trunk edge from the indoor side of the several vacuum heat insulating material to the inner wall of the heat insulation wall of the embodiment, and seeing the lower cut surface from the top, FIG. 12 is a cross-sectional view in the case where the lower cut surface is viewed from above by cutting up and down on a horizontal plane showing a process of fixing the first finish plate to the body edge fixed to the inner wall of the heat insulating wall of the same embodiment. FIG. 13 is a horizontal plane showing a process of fixing the final finishing plate to the body edge fixed to the inner wall of the heat insulating wall of the embodiment. FIG. 14 is a horizontal view showing a state in which the finished plate of the portion facing the damaged vacuum heat insulating material in the heat insulating wall of the same embodiment is inflated. It is sectional drawing at the time of cut | disconnecting up and down on a flat plane and seeing the lower cut surface from the top.

  As shown in FIG. 1, the heat insulation wall 1 in Embodiment 1 of this invention was fixed with the inner wall 2 of the existing building (house) used as a heat insulation repair site | part, and the inner surface of the inner wall 2 with the tucker 3 A vacuum insulator 4 and a body edge made of plywood having a thickness substantially the same as the thickness of the vacuum insulator 4 and fixed to the inner surface of the inner wall 2 with a tucker 5 so as to cover a part of the vacuum insulator 4 6 and a finishing board 8 made of a gypsum board fixed to the trunk edge 6 with a nail 7 so as to cover the vacuum heat insulating material 4 and the trunk edge 6 from the indoor side, and wallpaper ( (Not shown).

  The inner wall 2 in the present embodiment is made of a material capable of driving a tucker, a screw, or a nail, which is a U-shaped metal fixture, from the indoor side and has a predetermined thickness. In addition, when the inner wall 2 is fixed to the indoor side of the pillar (not shown), the portion into which the tucker 5 and the nail 7 are driven is the part where the pillar (not shown) is located on the back side (non-indoor side) of the inner wall 2. By limiting to the above, the thickness of the inner wall 2 may be made thinner than the distance from the inner surface of the inner wall 2 to the tip of the tucker 5 or the nail 7.

  In the present embodiment, a plywood body edge 6 is used. However, other body edges made of a material that is hard to conduct heat and that can be driven with a tucker, a screw, or a nail, such as a body edge made of foam insulation, are used. You may use.

  The vacuum heat insulating material 4 is a bag-shaped outer covering material 10 in which three sides made of a gas barrier and flexible laminate film facing each other with the heat welding layers 9 are sealed by heat welding, and is solidified by a binder treatment or a heat molding treatment. Covering the core material 11 made of glass wool, the inside of the jacket material 10 is depressurized to about 10 Torr or less, and the opening of the bag-like jacket material 10 is sealed by thermal welding.

  The core material 11 has a thickness of, for example, 150 to 250 mm under atmospheric pressure. However, the core material 11 is covered with the jacket material 10, is decompressed to about 10 Torr or less and sealed, and atmospheric pressure is applied to the outside of the jacket material 10. Then, the thickness of the core material 11 is reduced to, for example, 10 mm or less by being compressed in the thickness direction of the vacuum heat insulating material 4 by atmospheric pressure.

  In the present embodiment, the core material 11 made of glass wool is sealed under reduced pressure with the jacket material 10 as it is. However, after filling the core material 11 made of glass wool into a bag made of a heat-welded film such as polyethylene, The material 10 may be sealed under reduced pressure. However, when the core material 11 made of glass wool is filled in a bag made of a heat-welded film such as polyethylene and then sealed under reduced pressure with the jacket material 10, the jacket material 10 of the vacuum heat insulating material 4 is damaged and the jacket The swelling of the damaged vacuum heat insulating material 4 when the internal pressure of the material 10 becomes high is smaller than when the core material 11 is vacuum-sealed with the jacket material 10 as it is.

  The heat conductivity of the vacuum heat insulating material 4 of the present embodiment is very small and good compared to glass wool, urethane foam, etc., and has a good heat insulating property about 8 to 16 times that of urethane foam.

  As shown in FIG. 2, the envelope material 10 of the vacuum heat insulating material 4 in the present embodiment is made of a laminate film having a gas barrier layer 13 between the heat-welded layer 9 and the protective layer 12, and is on the core material 11 side. Polyethylene or the like is used as the heat welding layer 9, an aluminum foil having a thickness of 10 μm or less is used as the gas barrier layer 13, and nylon or polyethylene terephthalate is used as the protective layer 12 outside the gas barrier layer 13. The protective layer 12 may be formed by stacking two layers of nylon or polyethylene terephthalate. In addition to the metal foil such as an aluminum foil, the gas barrier layer 13 may be one in which a gas barrier layer is formed on the surface of the resin film by vapor deposition or coating or a combination of vapor deposition and coating.

  Further, as shown in FIGS. 2 and 3, the outer peripheral portion of the vacuum heat insulating material 4 in the present embodiment has a fin portion 14 in which the covering materials 10 facing each other without sandwiching the core material 11 therebetween. The fin portion 14 includes a thermal welding portion 15 having a width of about 20 mm in which outer cover materials 10 facing each other over the entire circumference of the fin portion 14 are thermally welded to the outer peripheral side of the fin portion 14, There is a non-thermally welded portion 16 having a predetermined width or more that is not thermally welded because the jacket materials 10 facing each other on the circumferential side are in close contact with each other at atmospheric pressure. Further, on the inner peripheral side of the non-thermally welded portion 16, there is a core material portion 17 having a core material 11 between the jacket material 10 (heat welded layer 9).

  It should be noted that the four corners of the outer peripheral fin portion 14 of the vacuum heat insulating material 4 are not damaged by the four corners of the outer peripheral fin portion 14 of the vacuum heat insulating material 4 so as to damage the operator and other members (particularly other vacuum heat insulating materials 4). It is preferable to round the corners.

  In addition, although the vacuum heat insulating material 4 used by this Embodiment is one type, it combines with several types of vacuum heat insulating materials from which a magnitude | size and a shape differ, or a vacuum heat insulating material in the place where arrangement | positioning of the vacuum heat insulating material 4 is difficult. Instead of 4, a foamed heat insulating material having a predetermined shape may be provided.

  The vacuum heat insulating material 4 is fixed by a member (tucker 3) that penetrates the inner wall 2 through the heat welding portion 15 in which the jacket materials 10 are heat-welded. At this time, the distance between the portion where the through-hole is formed in the heat welded portion 15 by the tucker 3 and the non-thermal welded portion 16 on the inner peripheral side of the heat welded portion 15 is set to be a predetermined distance (for example, 10 mm) or more.

  Further, the trunk edge 6 is in contact with the vacuum heat insulating material 4 only at the heat welding portion 15 where the jacket materials 10 of the vacuum heat insulating material 4 are heat-welded. In addition, the trunk edge 6 is fixed by a member (tucker 5) that penetrates the trunk edge 6 and pierces the inner wall 2. If the tucker 5 can fix the barrel edge 6 to the inner wall 2 at a predetermined strength or higher without passing through the thermal welding portion 15, it is better to drive the tucker 5 into the barrel edge 6 at a position not penetrating the thermal welding portion 15. When the tucker 5 is driven into a position penetrating the heat-welded portion 15 for unavoidable reasons, it is better to drive the tucker 5 so as to penetrate a position near the edge of the vacuum heat insulating material 4 as much as possible.

  In the present embodiment, the finish plate 8 is fixed by a member (nail 7) that penetrates the finish plate 8 and the trunk edge 6 and pierces the inner wall 2. When the finishing plate 8 can be fixed to the body edge 6 and the inner wall 2 with a predetermined strength or more without the nail 7 penetrating the heat welding portion 15, it is preferable to drive the finishing plate 8 into a position not penetrating the heat welding portion 15. In the case where the nail 7 is driven into a position that penetrates the heat welding part 15 for unavoidable reasons such as strength, it is better to drive the nail 7 so as to penetrate the position near the edge of the vacuum heat insulating material 4 as much as possible.

  In this Embodiment, although the width | variety of the heat welding part 15 shall be about 20 mm, it should just be 16 mm-30 mm (preferably 18 mm-26 mm), and the heat welding part 15 is made so that the width | variety of the heat welding part 15 is narrowed. There is a high possibility that the outside air enters the space that seals the core material 11 from the through hole made by the fixing member that penetrates, and the heat insulation performance of the heat insulating wall 1 (or the vacuum heat insulating material 4) is lowered with the passage of time. As the width of the heat welded portion 15 is increased, the outside air enters the space for sealing the core material 11 from the through hole made by the fixing member penetrating the heat welded portion 15, and the heat insulating wall 1 ( Or possibility that the heat insulation performance of the vacuum heat insulating material 4) will fall becomes low.

  As shown in FIG. 14, the heat insulating wall 1 of the present embodiment is damaged (bag breaking) due to a difference in atmospheric pressure inside and outside the jacket material 10 when the outer covering material 10 of the vacuum heat insulating material 4 is damaged (bag breaking). The air outside the outer cover material 10 enters the outer cover material 10 from the above-mentioned locations, the internal pressure of the outer cover material 10 is increased, and the pressure difference between the inner and outer surfaces of the outer cover material 10 is reduced. The core material 11 compressed by the atmospheric pressure tries to return to a thickness close to the thickness before compression, the core material 11 widens the space between the jacket materials 10, the damaged vacuum heat insulating material 4a swells, and the thickness becomes the trunk edge 6 The finish plate 8 of the portion facing the damaged vacuum heat insulating material 4a is swelled.

  If the finish plate 8 is swollen and the vacuum heat insulating material 4a is damaged quickly or with a high probability, the finish plate 8 is thinned or the finish plate 8 is easily deformed with a weak force. It is better that the finishing plate 8 is made of a material that can be easily deformed with a weak force.

  If it is sufficient to confirm whether or not the vacuum heat insulating material 4 is damaged in the stage after fixing the body edge 6 and before fixing the finishing plate 8, A general-purpose gypsum board of 9.5 mm or more may be used. In that case, it is easier to confirm whether the vacuum heat insulating material 4 is damaged or not by bulging the vacuum heat insulating material 4 when the time from fixing the trunk edge 6 to fixing the finishing plate 8 is lengthened.

  Hereinafter, the procedure of making the inner wall 2 of the existing building which becomes the heat insulation renovation site into the heat insulation wall 1 of the present embodiment will be described with reference to FIGS. 4 to 13.

  First, as shown in FIG. 4, the vacuum heat insulating material 4 shown in FIG. 3 is spaced from the corner of the inner wall 2 of the existing building (for example, the lower left corner) by a distance of about 10 mm from the outer peripheral edge of the inner wall 2. As shown in FIG. 9, the installation position is determined by bending the fin portion 14 so that one side of the core portion 17 is in close contact, and the fin portion 14 is in close contact with the inner wall 2 of the building as wide as possible. While holding the vacuum heat insulating material 4 by hand, tacker the heat welded portion 15 (the outer peripheral portion of the central portion in the width direction of the thermal weld 15) away from the non-thermal welded portion 16 of the fin portion 14 to the outer peripheral side by a predetermined interval. 3 is fixed to the inner wall 2. At this time, the distance between the portion where the through-hole is formed in the heat welded portion 15 by the tucker 3 and the non-thermal welded portion 16 on the inner peripheral side of the heat welded portion 15 is set to be a predetermined distance (for example, 10 mm) or more.

  Moreover, the vacuum heat insulating material 4 is previously provided so that the projection 10 on the surface of the inner wall 2 of the existing building or the foreign material adhering to the surface of the inner wall 2 does not damage the jacket material 10 of the core portion 17 that is in close contact with the inner wall 2. It is desirable that the surface on which the surface is disposed be a smooth surface.

  Thereafter, similarly, as shown in FIG. 4 and FIG. 10, the next vacuum heat insulating material 4 does not overlap with the previously fixed vacuum heat insulating material 4 and is spaced as far as possible from the previously fixed vacuum heat insulating material 4. In order not to open, it is fixed by the tucker 3 in the step direction (upward direction) and in the lateral direction. In the present embodiment, as shown in FIG. 5, the vacuum heat insulating material 4 is fixed to the inner wall 2 by the tucker 3 over three vertical rows and five horizontal rows.

  Next, as shown in FIG. 6 and FIG. 11, the vacuum heat insulating material 15 is long in the lateral direction (left and right direction) on the heat welding portion 15 that is in close contact with the inner wall 2 in the lower fin portion 14 of the lowermost vacuum heat insulating material 4. 4, the lower edge of the inner wall 2 is contacted with the body edge 6 made of plywood having a width slightly narrower than the distance between the upper edge of the heat welded portion 15 in the lower fin portion 14 of the lowermost vacuum heat insulating material 4. (The vacuum heat insulating material 4 is in contact with the body edge 6 only at the heat welding part 15) and penetrates the body edge 6 and the heat welding part 15 (the portion near the outer periphery of the heat welding part 15) to the inner wall 2. The inner wall of the heat welding portion 15 fixed by the pierced tucker 5 and in close contact with the inner wall 2 of the upper fin portion 14 of the uppermost vacuum heat insulating material 4 is long in the lateral direction (left and right direction) and substantially the same thickness as the vacuum heat insulating material 4. Between the upper edge of 2 and the lower end of the heat welded portion 15 in the upper fin portion 14 of the uppermost vacuum heat insulating material 4. The body edge 6 made of plywood having a slightly narrower width is brought into contact (so that the vacuum heat insulating material 4 is in contact with the body edge 6 only at the heat welding part 15), and the body edge 6 and the heat welding part 15 (heat welding part). 15 is fixed by a tucker 5 that penetrates the inner wall 2 and penetrates the outer peripheral portion 15.

  In addition, the left edge of the inner wall 2 has the same thickness as that of the vacuum heat insulating material 4 in the vertical direction (vertical direction) and the heat welded portion 15 in close contact with the inner wall 2 of the left fin portion 14 of the left vacuum insulating material 4. A cylinder edge 6 made of plywood having a width slightly narrower than the distance between the right end of the heat welded portion 15 in the left fin portion 14 of the left vacuum insulating material 4 is brought into contact (the vacuum heat insulating material 4 is a cylinder only at the heat welded portion 15). Fixing with the tucker 5 which penetrates the body edge 6 and the thermal welding part 15 (the part near the outer periphery of the thermal welding part 15) and pierces the inner wall 2, and contacts the right edge of the vacuum heat insulating material 4 at the right end. The fin 14 on the right side of the right edge of the inner wall 2 and the right edge of the vacuum heat insulating material 4 is long in the vertical direction (vertical direction) and substantially the same thickness as the vacuum heat insulating material 4. The body edge 6 made of plywood having a width slightly narrower than the distance from the left end of the heat welding part 15 in the part 14 Touch the inner wall 2 through the body edge 6 and the heat welded portion 15 (the portion closer to the outer periphery of the heat welded portion 15) so that the vacuum heat insulating material 4 is in contact with the body edge 6 only at the heat welded portion 15. Fix with the tucker 5 that pierces.

  Moreover, in the left-right direction (horizontal direction), the heat welding part 15 closely_contact | adhered to the inner wall 2 in the fin part 14 of the right side of the left vacuum heat insulating material 4 of the two vacuum heat insulating materials 4 adjacent to the left-right direction (horizontal direction). The vacuum heat insulating material 4 that is long in the vertical direction (vertical direction) is formed on both of the heat welding portions 15 that are in close contact with the inner wall 2 of the left fin portion 14 of the right vacuum heat insulating material 4 of the two adjacent vacuum heat insulating materials 4. The left end of the heat welding portion 15 in the fin portion 14 on the right side of the left vacuum heat insulating material 4 of the two vacuum heat insulating materials 4 adjacent to each other in the left-right direction (lateral direction) in a state of being fixed to the inner wall 2 with substantially the same thickness A body edge made of plywood having a width slightly narrower than the distance from the right end of the heat welded portion 15 in the left fin portion 14 of the right vacuum heat insulating material 4 of the two vacuum heat insulating materials 4 adjacent in the left-right direction (lateral direction). 6 (the vacuum heat insulating material 4 is the body edge only at the heat welding part 15) And into contact with it), fixed with Tucker 5) pierce the inner wall 2 through the widthwise center portion of the furring strip 6.

  At this time, the interior side surface of each barrel edge 6 fixed to the inner wall 2 by the tucker 5 is flush with the interior side surface of the core portion 17 of each vacuum heat insulating material 4 or each vacuum heat insulating material 4. The core member 17 is configured so as to protrude slightly inward from the indoor side surface.

  For the inner wall 2 in which the direction perpendicular to the wall surface is substantially perpendicular to the direction of gravity, especially when the finishing plate 8 is fixed to the inner wall 2 via the trunk edge, the trunk edge is long in the vertical direction (vertical direction). Rather than making the ratio of 6 smaller than the ratio of the long edge 6 in the horizontal direction (left and right direction), the ratio of the long edge 6 in the vertical direction (vertical direction) is the ratio of the long edge 6 in the horizontal direction (left and right direction). More is more stable.

  When the barrel edge 6 is fixed by the tucker 5, the center portion in the width direction of the barrel edge 6 is driven so that the tucker 5 is perpendicular to the inner wall 2.

  Further, when the tucker 5 penetrates the body edge 6 and the heat welded portion 15 and pierces the inner wall 2, the portion where the heat welded portion 15 has a through hole by the tucker 5 and the non-heated side on the inner peripheral side of the heat welded portion 15. The distance from the welded portion 16 is set to be a predetermined interval (for example, 14 mm) or more.

  Also, be careful that the tucker 5 does not contact the tucker 3. To prevent the tucker 5 from coming into contact with the tucker 3, the positions of the tucker 5 and the tucker 3 are determined in advance, and the tucker 5 and the tucker 3 are driven according to the rules, or after the tucker 3 is driven, A mark indicating the position of the tucker 3 or a mark indicating the position where the tucker 5 should be driven is attached to the trunk edge 6, and the tucker 5 may be driven based on the mark attached to the trunk edge 6.

  Further, the surface of the body edge 6 that contacts the heat welded portion 15 is preliminarily heat welded so that the heat welded portion 15 is not damaged by protrusions on the surface of the body edge 6 or foreign matter adhering to the surface of the body edge 6. It is desirable that the surface in contact with the portion 15 be a smooth surface.

  The vacuum insulator 4 is fixed to the inner wall 2 by fixing the trunk edge 6 to the indoor surface of the inner wall 2 so that the thermal welding portion 15 of the vacuum insulator 4 is sandwiched between the inner edge 2 and the inner surface of the inner wall 2. It can be firmly fixed to the indoor side surface.

  Next, as shown in FIGS. 7 and 12, the vacuum heat insulating material 4 and the trunk rim 6 are covered with the trunk rim 6 so as to cover the interior from the indoor side. In the embodiment, the finishing plate 8 made of gypsum board cut into 60% of the inner wall 2 of the existing building that becomes a heat insulation repair site (60% of the heat insulation wall 1) is used as the existing heat insulation repair site. The left end of the inner wall 2 of the building and the left end of the finishing plate 8 are aligned, and the nail 7 that penetrates the finishing plate 8 and the trunk edge 6 and pierces the inner wall 2 is fixed to the trunk edge 6 and the inner wall 2.

  Further, when the nail 7 penetrates the heat welding portion 15, the distance between the portion where the nail 7 forms a through hole in the heat welding portion 15 and the non-thermal welding portion 16 on the inner peripheral side of the heat welding portion 15 is a predetermined interval. (For example, 15 mm) or more.

  Care is also taken that the nail 7 does not contact the tucker 5 or the tucker 3. In order to prevent the nail 7 from coming into contact with the tucker 5 or the tucker 3, the positions of the nail 7, the tucker 5 and the tucker 3 are determined in advance, and the nail 7, the tucker 5 and the tucker 3 are driven according to the rules. Or after stamping the tucker 3 and the tucker 5, a mark indicating the position of the tucker 3 and the tucker 5 and a mark indicating the position where the nail 7 should be driven are marked on the finishing plate 8, You only have to drive nails 7 into the base.

  When the core material portion 17 of the vacuum heat insulating material 4 is in contact with the finishing plate 8, the outer cover material 10 of the core material portion 17 is formed by protrusions on the surface of the finishing heat plate 4 on the vacuum heat insulating material 4 side or foreign matter adhering to the surface. It is desirable that the surface of the finish plate 8 on the side of the vacuum heat insulating material 4 is made smooth in advance so as not to be damaged.

  Since the finishing plate 8 should be fixed with the nails 7 on the outer periphery of the finishing plate 8, if the vertical dimension of the finishing plate 8 is smaller than the vertical dimension of the inner wall 2, In order to be able to fix the outer peripheral part with the nail 7 over the entire circumference, the side where the heat welding part 15 of the two vacuum heat insulating materials 4 adjacent to the vertical direction (longitudinal direction) fixed to the inner wall 2 is necessary Under the upper vacuum heat insulating material 4 of the two vacuum heat insulating materials 4 adjacent to each other in the vertical direction (longitudinal direction), which is long in the direction (left and right direction) and fixed to the inner wall 2 with substantially the same thickness as the vacuum heat insulating material 4 Of the heat welding part 15 in the upper fin part 14 of the lower vacuum heat insulating material 4 of the two vacuum heat insulating materials 4 adjacent to the upper end of the heat welding part 15 in the side fin part 14 and the vertical direction (vertical direction). A body edge 6 made of plywood having a width slightly narrower than the distance from the lower end is provided.

  Next, as shown in FIGS. 8 and 13, the vacuum heat insulating material 4 and the trunk rim 6 are covered with the trunk rim 6 so as to cover the interior from the indoor side. In the embodiment, the finish plate 8 made of gypsum board cut into 40% of the inner wall 2 of the existing building that becomes the heat insulation repair site (40% of the heat insulation wall 1) is used as the existing heat insulation repair site. The right end of the inner wall 2 of the building and the right end of the finishing plate 8 are aligned and fixed to the inner edge 6 and the inner wall 2 with a nail 7 that penetrates the inner wall 2 through the finishing plate 8 and the inner edge 6.

  In the present embodiment, the core portions 17 and the cores of the two vacuum heat insulating materials 4 adjacent to each other at the four corners of the two finishing plates 8 and the outer peripheral portions of the two finishing plates 8 in the vertical and horizontal directions. An intermediate portion between the core portion 17 and the core portion 17 of the four vacuum heat insulating materials 4 adjacent to each other in the vertical direction and the left-right direction at the center portion of each of the two finish plates 8. A nail 7 is provided. In other words, the finishing plate 8 that covers nine vacuum heat insulating materials 4 in the center in the left-right direction and the left three rows and three tiers is fixed by sixteen nails 7 in four rows and four tiers. The finishing plate 8 that covers the six vacuum heat insulating materials 4 in the step is fixed by twelve nails 7 in three rows and four steps.

  Thereafter, the unevenness between the adjacent finishing plates 8 is filled with putty, and a wallpaper (not shown) is pasted thereon so that the finishing plates 8 and the nails 7 cannot be seen from the indoor side.

  In the present embodiment, the trunk edge 6 is fixed to the inner wall 2 with the tucker 5, but nails or screws that penetrate the inner edge 2 through the trunk edge 6 may be used instead. Further, although the finishing plate 8 is fixed to the trunk edge 6 and the inner wall 2 with the nails 7, a tucker or a screw that penetrates the finishing plate 8 and the trunk edge 6 and pierces the inner wall 2 may be used instead.

  The heat insulating wall 1 of the present embodiment fixes a vacuum heat insulating material 4 and a body edge 6 having substantially the same thickness as the vacuum heat insulating material 4 to the indoor side surface of the inner wall 2. The heat insulating wall 1 is formed by fixing a finishing plate 8 that covers the body edge 6 from the indoor side to the body edge 6, and the vacuum heat insulating material 4 is made of inorganic fibers that have not been solidified by binder treatment or heat molding treatment. The core material 11 is covered with a jacket material 10 made of a flexible laminate film with gas barrier properties, and the inside of the jacket material 10 is decompressed.

  Thereby, the vacuum heat insulating material 4 is fixed to the indoor side surface of the inner wall 2 constituting the indoor space, and then the trunk edge 6 having the same thickness as the vacuum heat insulating material 4 is attached to the vacuum heat insulating material 4. Only the heat welding part 15 is in contact with the vacuum heat insulating material 4 and is fixed to the inner wall 2 so as to cover a part of the vacuum heat insulating material 4 (the heat welding part 15), and then the finishing plate 8 is attached to the vacuum heat insulating material 4 and the body. By fixing the edge 6 to the body edge 6 so as to cover it from the indoor side, it is possible to obtain a heat insulating wall 1 that can be easily constructed and has good heat insulating performance without using a foam heat insulating material. When the inner wall 2) is used as the heat insulation wall 1, it is not necessary to dismantle the existing wall (inner wall 2), and it is possible to easily reinforce the insulation at a level close to wallpaper replacement. A very advantageous effect is obtained.

  In addition, the vacuum heat insulating material 4 is extremely superior in heat insulating performance compared to general-purpose heat insulating materials such as styrene foam, and the heat insulating performance of the core portion 17 of the vacuum heat insulating material 4 in the present embodiment is about 8 of that of urethane foam. Since it is -16 times, the thickness of a heat insulating material part can be made thin, As a result, the heat insulation wall 1 can be made thin. Further, when the face material for fixing the vacuum heat insulating material 4 is an existing wall (inner wall 2), since the protruding dimension of the wall surface to the indoor side by using the heat insulating wall 1 can be reduced, there is a range that can be applied without problems. Widely practical.

  Moreover, the vacuum heat insulating material 4 directly covers the core material 11 made of inorganic fibers that have not been solidified by the binder treatment or the heat molding treatment with the jacket material 10 made of a flexible laminated film with a gas barrier property. Since the internal pressure is reduced, when the internal vacuum is maintained, it is suppressed by the atmospheric pressure, so that the predetermined thickness can be maintained, but the vacuum cannot be maintained due to the bag breaking of the outer cover material 10. Then, since the air that has entered the inside enters between the inorganic fibers that are not solidified and the inorganic fibers try to return to a state under atmospheric pressure, the vacuum heat insulating material 4 expands, If the vacuum insulation material 4 fixed to the surface is broken before the finish plate 8 is fixed, the vacuum insulation material 4 can be confirmed by expansion, and the broken vacuum insulation material 4a can be replaced. Further, when the vacuum heat insulating material 4 swells due to bag breaking, the construction is such that the portion of the finishing plate 8 facing the broken vacuum heat insulating material 4a swells. The bag breaking of the vacuum heat insulating material 4 fixed to the surface of the indoor side 2 can be confirmed by the deformation of the finishing plate 8 accompanying the expansion of the vacuum heat insulating material 4, and the effect of exchanging the broken vacuum heat insulating material 4a can be obtained.

  Moreover, the vacuum heat insulating material 4 and the trunk edge 6 are provided on the inner surface of the inner wall 2, and the heat welding portion 15 of the fin portion 14 that does not sandwich the core material 11 between the outer covering material 10 on the outer periphery of the vacuum heat insulating material 4. Since the trunk rim 6 is overlapped on the indoor side, after fixing the trunk rim 6 to the inner wall 2, the heat welding portion 15 of the vacuum heat insulating material 4 can be fixed to the inner wall 2 by the trunk rim 6. The fixing of the vacuum heat insulating material 4 to the inner wall 2 before fixing the inner edge 2 to the inner wall 2 can be temporarily fixed until the trunk edge 6 is fixed to the inner wall 2. For fixing the vacuum heat insulating material 4 to the inner wall 2, fixing means such as an adhesive or a double-sided adhesive tape that can be fixed or bonded over time can be used, and there are many options for fixing. Depending on the selection of means, workability can be improved and costs can be reduced. Further, the vacuum heat insulating material 4 can be firmly fixed to the indoor side surface of the inner wall 2 by the body edge 6 fixed to the inner wall 2, and the deformation of the finish plate 8 due to the undulation of the fin portion 14 of the vacuum heat insulating material 4 can be prevented. can get. In addition, fixing the drum edge 6 to the inner wall 2 after fixing the vacuum heat insulating material 4 to the inner wall 2 is more effective than fixing the vacuum heat insulating material 4 to the inner wall 2 after fixing the drum edge 6 to the inner wall 2. It is easy to cope with the dimensional variation of the material 4.

  Further, the outer peripheral portion of the vacuum heat insulating material 4 has a fin portion 14 in which the outer cover materials 10 facing each other without interposing the core material 11 therebetween, and the fin portion 14 has a fin on the outer peripheral side of the fin portion 14. The heat-welded portion 15 where the outer cover materials 10 facing each other over the entire circumference of the portion 14 are heat-welded and the outer cover materials 10 facing each other on the inner peripheral side of the heat-welded portion 15 are in close contact with each other at atmospheric pressure. If there is a non-thermally welded portion 16 having a predetermined width or more which is not thermally welded, and the reduced pressure state (vacuum state) inside the jacket material 10 cannot be maintained due to the broken bag (breakage) of the jacket material 10, Since the outer cover materials 10 facing each other of the heat welding part 16 are separated from each other and the vacuum heat insulating material 4 expands greatly, it becomes easy to find a broken bag (breakage) of the vacuum heat insulating material 4. The effect that a bag (breakage) can be found earlier is obtained.

  Moreover, since the thickness of the trunk edge 6 is substantially the same as the thickness of the vacuum heat insulating material 4, it is possible to find the bag breakage (breakage) of the vacuum heat insulating material 4 earlier. In particular, after the finishing plate 8 is fixed, the effect of expansion of the vacuum heat insulating material 4 appears early on the finishing plate 8, so that the effect of detecting breakage (breakage) of the vacuum heat insulating material 4 can be obtained earlier.

  Moreover, the heat insulation wall 1 of this Embodiment WHEREIN: When the jacket material 10 of the vacuum heat insulating material 4 is damaged and the pressure inside the jacket material 10 becomes high, the damaged vacuum heat insulating material 4 swells and is thick. Is thicker than the thickness of the body rim 6, and the finished plate 8 facing the damaged vacuum heat insulating material 4 swells, and the finished plate facing the vacuum insulating material 4 swelled by breaking (breaking bag) When the plurality of vacuum heat insulating materials 4 are fixed to the inner surface of the inner wall 2 and any one of the plurality of vacuum heat insulating materials 4 is broken (bag breakage), the damage (breaking) It is easy to specify the position of the vacuum insulating material 4 that has been bagged.

  Moreover, since the heat insulation wall 1 of this Embodiment uses the several vacuum heat insulating material 4, even when the pinhole is made in the jacket material 10 of the specific vacuum heat insulating material 4, and the heat insulation performance deteriorates, Only the heat insulation performance of the portion where the specific vacuum heat insulating material 4 in which the heat insulation performance is deteriorated is deteriorated, and the deterioration of the heat insulation performance does not spread to the entire heat insulation wall 1, and the effect of reducing the heat insulation performance of the heat insulation wall 1 can be reduced. can get.

  Moreover, the heat insulation wall 1 of this Embodiment uses the gypsum board for the finishing board 8, and can have the effect which can have the fire resistance which was cheap and excellent (heat insulation repair expense can be made cheap, and fire generation | occurrence | production is also possible. The effect of preventing the spread of fire in the case is obtained.

  In the present embodiment, the finishing plate 8 is fixed by a member (nail 7) that penetrates the finishing plate 8 and the trunk edge 6 and penetrates the inner wall 2. Is a member that pierces but does not penetrate the body edge 6, and can fix the finishing plate 8 more firmly than the case where the finishing plate 8 is fixed.

  The heat insulation wall 1 of this Embodiment is applicable not only to the wall (wall substantially parallel to the gravity direction) which comprises indoor space, but also to the floor and ceiling which comprise indoor space. When it is applied to the ceiling, it is necessary to fix the components such as the finishing plate 8, the trunk edge 6, the vacuum heat insulating material 4, the nail 7, the tuckers 3, 5 and so on so as not to fall. It is necessary to select the material, thickness and structure of the finishing plate 8, the material and structure and width of the body edge 6, and the interval between adjacent body edges so as to withstand the load in the direction of gravity.

  A house in which the heat insulating wall 1 according to the present embodiment is applied to any one of a wall, a ceiling, and a floor constituting an indoor space has excellent indoor heat insulating performance and can realize a comfortable space with a small amount of air conditioning energy (heating and cooling costs).

(Embodiment 2)
FIG. 15 is a cross-sectional view of the heat insulation wall according to the second embodiment of the present invention cut up and down on the horizontal plane and viewed from above the lower cut surface. The same components as those in the first embodiment are denoted by the same reference numerals. Is attached.

  The heat insulating wall 1a of the present embodiment is a body edge 6a thicker than the thickness of the vacuum heat insulating material 4 instead of the body edge 6 having the same thickness as the vacuum heat insulating material 4 in the heat insulating wall 1 of the first embodiment. Is used to form an air layer between the vacuum heat insulating material 4 and the finishing plate 8. Since this air layer has heat insulating properties, the thickness of the air layer is increased from the heat insulating wall 1 of the first embodiment, but the effect of improving the heat insulating performance is obtained.

  As described above, the heat insulating wall of the present invention is a heat insulating wall that can be easily constructed and has good heat insulating performance, and is optimal when renovating (insulating and renovating) the inner wall of an existing building to make a heat insulating wall. However, it can also be applied to the walls of new buildings, and is useful for residential buildings, commercial buildings, and other buildings that require thermal insulation.

Sectional drawing of the heat insulation wall in Embodiment 1 of this invention Sectional drawing of the vacuum heat insulating material used for the heat insulation wall of the embodiment Plan view of vacuum heat insulating material used for heat insulating wall of same embodiment The top view which shows the state which has started attaching the vacuum heat insulating material to the inner wall of the heat insulation wall of the embodiment The top view which shows the state which attached the some vacuum heat insulating material to the inner wall of the heat insulation wall of the embodiment The top view which shows the state which fixed the trunk edge from the indoor side of the several vacuum heat insulating material to the inner wall of the heat insulation wall of the embodiment The top view which shows the state which fixed the finishing board to the left side and the center trunk edge among the trunk edges fixed to the inner wall of the heat insulation wall of the embodiment The top view which looked at the heat insulation wall of the embodiment from the indoor side Sectional drawing which shows the process of arrange | positioning a vacuum heat insulating material to the inner wall of the heat insulation wall of the embodiment Sectional drawing which shows the process of fixing a some vacuum heat insulating material to the inner wall of the heat insulation wall of the embodiment Sectional drawing which shows the process of fixing a trunk edge from the room inner side of a some vacuum heat insulating material to the inner wall of the heat insulation wall of the embodiment Sectional drawing which shows the process of fixing the first finishing board to the trunk edge fixed to the inner wall of the heat insulation wall of the embodiment Sectional drawing which shows the process of fixing the last finishing board to the trunk edge fixed to the inner wall of the heat insulation wall of the embodiment Sectional drawing which shows the state which the finishing board of the part which opposes the vacuum heat insulating material damaged in the heat insulation wall of the embodiment is bulging Sectional drawing of the heat insulation wall in Embodiment 2 of this invention Schematic cross section of conventional heat insulation wall

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1a Heat insulation wall 2 Inner wall 3 Tucker 4 Vacuum heat insulating material 5 Tucker 6,6a Body edge 7 Nail 8 Finish plate 9 Thermal welding layer 10 Outer material 11 Core material 14 Fin part 15 Thermal welding part 16 Non-thermal welding part

Claims (5)

  A vacuum insulating material and a body edge having a thickness greater than or equal to the thickness of the vacuum heat insulating material are respectively fixed to a surface of the inner wall on the indoor side, and a finish plate is provided to cover the vacuum heat insulating material and the body edge from the indoor side. A heat insulating wall fixed to an edge, wherein the vacuum heat insulating material is a sheath material made of a flexible laminated film having a gas barrier property and a core material made of inorganic fibers not solidified by binder treatment or heat molding treatment A heat insulating wall formed by depressurizing the inside of the jacket material.   The outer peripheral portion of the vacuum heat insulating material has a fin portion in which the covering materials facing each other without interposing the core material therebetween, and the fin portion has an outer peripheral side of the fin portion over the entire circumference of the fin portion. Predetermined width that is not thermally welded only by the heat-welded portion where the facing jacket materials facing each other are heat-welded and the jacket material facing each other on the inner peripheral side of the heat-welded portion are in close contact with each other at atmospheric pressure The heat insulation wall according to claim 1, wherein the non-thermal welding portion is provided.   The heat insulating wall according to claim 1 or 2, wherein the thickness of the trunk edge is substantially the same as the thickness of the vacuum heat insulating material.   When the outer cover material of the vacuum heat insulating material is damaged and the pressure inside the outer cover material is increased, the damaged vacuum heat insulating material swells and becomes thicker than the thickness of the trunk edge, and the damaged vacuum heat insulating material The heat insulation wall according to claim 3, wherein a finish plate of a portion facing the material swells.   The house which applied the heat insulation wall as described in any one of Claim 1 to 4 to the wall, ceiling, or floor which comprises indoor space.