JP2009293183A - Insulation retrofit wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insulation retrofit wall capable of facilitating its construction and achieving excellent insulation efficiency. <P>SOLUTION: A plurality of facial seal multicore vacuum heat insulating materials 14, 15 provided on an insulation retrofit surface 10 having an outlet 11 and an electric lamp switch 12 and constituting an indoor space are constituted by arranging a plurality of core materials 13 between gas barrier covering materials having opposing heat welded layers by separating them from each other by a predetermined interval or more, reducing pressure of and sealing the core materials, letting the covering materials in sections without the core materials 13 adhere closely and mutually between the covering materials to position each of a plurality of core materials 13 in an independent pressure reduced space, and welding the closely adhered covering materials by heat. The facial seal multicore vacuum heat insulating material 14 is provided with a through-hole for exposing the outlet 11 or the electric lamp switch 12 in the section where the core material 13 is not arranged and the covering materials are thermally and mutually welded at a step being equivalent to the positions of the outlet 11 and the electric lamp switch 12, and the covering materials 16 between the core material 13 being close to the through-hole and the through-hole are thermally and mutually welded. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heat insulation renovation wall.

  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. For this reason, various heat insulating renovation 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. 5 is a schematic cross-sectional view of a conventional heat-insulated renovation wall disclosed in Patent Document 1. As shown in FIG. 5, the conventional heat-insulated renovation wall in Patent Document 1 fixes a plurality of substantially trapezoidal trunk edges 103 on a base 101 made of an existing wall in which a board 102 is formed on a casing α. A single-sided adhesive tape is affixed on 103, sprayed with an in-situ foam-type synthetic resin foam 104 over the entire surface of the wall and formed so that a space 105 is formed between the barrel edges 103, and then the single-sided adhesive tape is peeled off. Thus, the surface of the trunk edge 103 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 renovation wall by patent document 1, in order to improve the heat insulation performance of a housing drive body, multiple substantially trapezoidal trunk edges 103 are fixed on the base | substrate 101, and a single-sided adhesive tape is affixed on the trunk edge 103. FIG. In-situ foaming type synthetic resin foam 104 is sprayed on the entire surface of the wall base 101 and a space 105 is formed between the barrel 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-insulated renovation wall that can be easily constructed and has good heat insulation performance.

  In order to achieve the above object, the heat-insulated renovation wall of the present invention is a heat-insulating renovation wall in which a vacuum heat insulating material is provided on the indoor side surface of an existing wall having an outlet or a switch and constituting an indoor space, In the vacuum heat insulating material, a plurality of core members are arranged at a predetermined distance or more apart in a direction substantially perpendicular to the thickness direction between the gas barrier coating materials facing the heat-welding layers and sealed under reduced pressure. The outer cover materials are brought into close contact with each other so that each of the plurality of core members is located in an independent decompression space, and the portions of the outer cover material that do not have the core material are in close contact with each other. The outer cover material or the switch is provided at a position where the outer cover materials are heat welded to each other, and the outer cover materials are heat welded to each other. A plurality of the core members provided with through holes for exposing It said outer covering material with each other between the core member and the through hole proximate the inner the through hole is characterized in that it is thermally welded.

  Further, another heat insulation renovation wall of the present invention is a heat insulation renovation wall in which a plurality of vacuum heat insulating materials are provided on an indoor side surface of an existing wall having an outlet or a switch and constituting an indoor space, In the vacuum heat insulating material, a plurality of core members are arranged at a predetermined distance or more apart in a direction substantially perpendicular to the thickness direction between the gas barrier coating materials facing the heat-welding layers and sealed under reduced pressure. The outer cover materials are brought into close contact with each other so that each of the plurality of core members is located in an independent decompression space, and the portions of the outer cover material that do not have the core material are in close contact with each other. A portion of the plurality of vacuum heat insulating materials facing the outlet or the switch, wherein the outer covering materials of all the portions where the outer covering materials are in close contact with each other are thermally welded. The vacuum heat insulating material provided on the outer cover material A through-hole for exposing the outlet or the switch is provided at a position where the heat-welded portion is heat-sealed, and the jacket materials between the core material and the through-hole between the core material adjacent to the through-hole among the plurality of core materials Is heat-welded.

  Thereby, when a pinhole generate | occur | produces in a vacuum heat insulating material, the significant fall of the heat insulation performance of the whole vacuum heat insulating material can be prevented. In addition, vacuum insulation is superior to general-purpose insulations such as styrene foam, so it is possible to reduce the thickness of the insulation part, resulting in a smaller wall bulge dimension. Therefore, it can be applied to a wide range of practical applications without problems, and can be used for simple and high-performance insulation refurbishment by using the walls, floors, ceilings, etc. of conventional houses as they are, and has an outlet or switch. The effect applicable also to the existing wall which comprises indoor space is acquired.

  The present invention can prevent a significant decrease in the heat insulating performance of the entire vacuum heat insulating material when a pinhole is generated in the vacuum heat insulating material. In addition, vacuum insulation is superior to general-purpose insulations such as styrene foam, so it is possible to reduce the thickness of the insulation part, resulting in a smaller wall bulge dimension. Therefore, it can be applied to a wide range of practical applications without problems, and can be used for simple and high-performance insulation refurbishment by using the walls, floors, ceilings, etc. of conventional houses as they are, and has an outlet or switch. There is an effect that can also be applied to existing walls that make up the interior space.

  The invention of the heat insulation renovation wall according to claim 1 is a heat insulation renovation wall in which a vacuum heat insulating material is provided on an indoor side surface of an existing wall having an outlet or a switch and constituting an indoor space, wherein the vacuum heat insulating material The plurality of core members are disposed at a predetermined distance or more apart in a direction substantially perpendicular to the thickness direction between the gas barrier outer covering materials facing the heat-welded layers, and are sealed under reduced pressure. So that each of the core materials is located in an independent decompression space, the portions of the outer cover material that do not have the core material are in close contact with each other between the outer cover materials, The outer cover materials of all the portions where the outer cover materials are in close contact with each other are heat-welded, and the outlet or the switch is exposed at a position where the outer cover materials are heat-welded. A through-hole is provided, and the through-hole is included among the plurality of core members. Said outer covering material with each other between the core member and the through hole proximate the hole, characterized in that it is thermally welded.

  In the heat insulation repair wall of the present invention, as a heat insulation material for heat insulation repair, a portion of the jacket material having no core material between the jacket materials so that each of the plurality of core materials is located in an independent decompression space Vacuum heat insulating material (hereinafter referred to as face seal multi-core) in which all the outer cover materials in which the outer cover materials are in close contact with each other are thermally welded. (Referred to as vacuum insulation), and the face seal multi-core vacuum insulation is heat insulation modified because each core material is independent of its vacuum level and has good thermal conductivity. Even if adiabatic deterioration occurs in installation on a wall or the like, an effect of reducing the deterioration of heat insulation as a face seal multicore vacuum heat insulating material can be obtained only by deterioration of heat insulation of only that portion. The face seal multi-core vacuum insulation material is a bag made by placing the core material in a vacuum insulation material in which only the outer peripheral portions of two facing outer jacket materials are heat-welded or in a bag-like outer sheath material in which three sides are heat-welded. Compared to the vacuum heat insulating material where the openings of the outer cover material are heat-welded, it is possible to form a wider heat-welded part, so even if pinholes occur in installation on the wall where heat insulation is renovated There is a high possibility that there is a heat welded portion between the pinhole occurrence site and the core material, and the effect that the vacuum heat insulating material is unlikely to undergo heat insulation deterioration is obtained.

  In addition, the face seal multi-core vacuum heat insulating material used in the present invention is provided with a through hole that exposes an outlet or a switch at a location where the jacket materials are heat-welded to each other, and a core that is close to the through hole among a plurality of core materials. The jacket material between the material and the through hole is heat-sealed, and there is no core material in the cross section of the through hole that exposes the outlet or switch, so the core material will not spill or scatter In addition to the effect, there is an effect that it is not necessary to process the cut surface of the through hole in order to prevent the core material from scattering. Furthermore, since the periphery of the through hole is thermally welded, and the outer jacket material between the core material adjacent to the through hole and the through hole among the plurality of core materials is thermally welded, the through hole is cut. Since the amount of air entering from the surface can be reduced, it is possible to improve the long-term reliability.

  Further, the invention of the heat insulation / repair wall according to claim 2 is a heat insulation / renovation wall provided with a plurality of vacuum heat insulating materials on the indoor side surface of an existing wall having an outlet or a switch and constituting an indoor space, The plurality of vacuum heat insulating materials are sealed under reduced pressure by disposing a plurality of core members spaced apart from each other by a predetermined distance in a direction substantially perpendicular to the thickness direction between the gas barrier coating materials facing the heat-welded layers. The outer cover materials in a portion where the core material is not present are closely adhered between the outer cover materials so that each of the plurality of core materials is located in an independent decompression space. The jacket materials are thermally welded to each other, and the jacket materials of all the portions where the jacket materials are in close contact with each other are thermally welded, and the outlet or the switch among the plurality of vacuum heat insulating materials The vacuum heat insulating material provided at the opposite location is the front A through hole that exposes the outlet or the switch is provided at a location where the jacket materials are thermally welded to each other, and the gap between the core material adjacent to the through hole and the through hole among the plurality of core materials. The jacket materials are heat-welded to each other.

  The heat-insulated renovation wall of the present invention uses a face-seal multi-core vacuum heat insulating material, and the face-seal multi-core vacuum heat-insulating material has a plurality of core materials that are independent of the vacuum level and have a high thermal conductivity. Because it is small and good, even if adiabatic degradation occurs in the wall installation etc. where heat insulation is renovated, the effect of reducing the heat insulation as a face seal multi-core vacuum heat insulating material can be reduced just by deteriorating the heat insulation of only that part Is obtained. The face seal multi-core vacuum insulation material is a bag made by placing the core material in a vacuum insulation material in which only the outer peripheral portions of two facing outer jacket materials are heat-welded or in a bag-like outer sheath material in which three sides are heat-welded. Compared to the vacuum heat insulating material where the openings of the outer cover material are heat-welded, it is possible to form a wider heat-welded part, so even if pinholes occur in installation on the wall where heat insulation is renovated There is a high possibility that there is a heat welded portion between the pinhole occurrence site and the core material, and the effect that the vacuum heat insulating material is unlikely to undergo heat insulation deterioration is obtained.

  Further, among the plurality of face seal multi-core vacuum heat insulating materials used in the present invention, the face seal multi-core vacuum heat insulating material provided at a location facing the outlet or the switch is an outlet or switch at a location where the jacket materials are thermally welded to each other. A through hole that exposes an outlet or a switch is provided, in which a jacket material between the core material and the through hole that are close to the through hole is thermally welded. Since there is no core material in the cross section of the hole, there is an effect that the core material is not spilled or scattered, and there is no need to process the cut surface of the through hole to prevent the core material from scattering. can get. Furthermore, since the periphery of the through hole is thermally welded, and the outer jacket material between the core material adjacent to the through hole and the through hole among the plurality of core materials is thermally welded, the through hole is cut. Since the amount of air entering from the surface can be reduced, it is possible to improve the long-term reliability.

  In addition, only the face seal multi-core vacuum heat insulating material provided at the location facing the outlet or switch is a special face seal multi-core vacuum heat insulating material having a through-hole adapted to the position, shape, and size of the outlet or switch, By using a general-purpose face seal multi-core vacuum insulation as the face seal multi-core vacuum insulation provided at locations other than the location facing the outlet or switch, mass production of general-purpose face seal multi-core vacuum insulation can be achieved. The size of the special face seal multi-core vacuum heat insulating material having a through hole can be made smaller than that of the face seal multi-core vacuum heat insulating material used in the invention of claim 1, and the special face seal multi-core vacuum heat insulating material having a through hole is provided. Manufacture of the material becomes easy.

  Moreover, the invention of the heat insulation renovation wall according to claim 3 is the invention according to claim 1 or 2, wherein there is no core material around the through-hole and the jacket material is thermally welded to each other. The foam heat insulating material having substantially the same thickness as the vacuum heat insulating material is disposed.

  In addition to the effect of the invention according to claim 1, this heat insulation renovation wall is a core material around a through-hole (outlet or switch) in a face seal multicore vacuum heat insulating material by a foam heat insulating material that can be easily processed into an arbitrary shape. The effect which can aim at the heat insulation reinforcement | strengthening of the part which does not have is acquired.

  Moreover, the invention of the heat insulation repair wall of Claim 4 WHEREIN: The invention as described in any one of Claim 1 to 3 WHEREIN: The foaming heat insulating material has been arrange | positioned to the indoor side of the said vacuum heat insulating material, It is characterized by the above-mentioned. .

  Face seal multi-core vacuum insulation material has unevenness on the surface due to the difference in thickness between the part with and without the core material, and the part with the core material has excellent heat insulation, but the part without the core material The heat insulation performance is poor, and it is difficult to produce a thickness exceeding 10 mm. Therefore, by placing the foam insulation on the indoor side of the vacuum insulation material, the heat insulation performance of the part without the core material is improved, the impact on the vacuum insulation material from the indoor side is mitigated with the foam insulation material, The foam insulation prevents direct impact from the indoor side on the vacuum insulation material, greatly reduces the possibility of thermal insulation deterioration due to bag breakage etc. where the core material is located, and flatness of the insulation insulation surface on the indoor side The effect which can aim at ensuring of is acquired.

  In addition, the invention for a heat-insulating renovation wall according to claim 5 is the invention according to claim 3 or 4, wherein the foam insulation is urethane foam, polystyrene foam, styrene foam, phenol foam, polyethylene foam. These foam heat insulating materials have low thermal conductivity and are excellent in workability and flatness, and are therefore suitable for obtaining the effects of the invention of claim 3 or 4. .

  Next, the constituent material of the face seal multicore vacuum heat insulating material will be described in detail.

  The material used for the core material is obtained by processing a porous body having a gas phase ratio of about 90% into a sheet or plate, and industrially usable materials include foams, powders, and fiber bodies. . These can use a well-known material according to the use use and required characteristic. However, a material that does not melt by heat when the jacket materials are heat-welded is preferable.

  Among these, as the foam, an open cell of a material having excellent heat resistance can be used. In addition, inorganic, organic, and mixtures thereof can be used as the powder, but industrially, powders mainly composed of dry silica, wet silica, pearlite, and the like can be used.

  In addition, inorganic, organic, and mixtures thereof can be used as the fibrous body, but inorganic fibers are advantageous from the viewpoint of cost and heat insulation performance. As an example of the inorganic fiber, a known material such as glass wool, glass fiber, alumina fiber, silica alumina fiber, silica fiber, rock wool, or the like can be used.

  In addition, mixtures of these foams, powders, fiber bodies and the like can also be applied.

  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 configuration diagram of a heat-insulating renovation wall according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view of a face seal multicore vacuum heat insulating material used for the heat-insulating renovation wall according to the same embodiment.

  The heat insulation renovation wall in the first embodiment includes a plurality of face seal multicore vacuums on a heat insulation renovation surface 10 on the indoor side of an existing wall having an outlet 11 and an electric light switch 12 as a portion not subject to heat renovation and constituting an indoor space. A plurality of face-sealed multi-core vacuum heat insulating materials 14 and 15 are provided between the outer covering material 16 made of a gas barrier laminate film in which the heat-welding layers 18 face each other. In addition, a plurality of core members 13 made of a fiber laminate having a thickness of 3 to 10 mm are arranged in three rows horizontally, in a plurality of rows vertically, in a grid pattern, spaced apart from each other by a predetermined distance in a direction substantially perpendicular to the thickness direction. Are sealed under reduced pressure, and a plurality of the core members 13 are positioned in the independent reduced pressure space so that the portions of the outer cover material 16 that do not have the core material 13 between the outer cover materials 16 are brought into close contact with each other. Heat-sealing the covering materials 16 In other words, the portions of the covering material 16 in which all of the covering materials 16 are in close contact with each other are thermally welded, and the portions of the plurality of face seal multi-core vacuum heat insulating materials 14 and 15 that face the outlet 11 and the light switch 12 In the face seal multi-core vacuum heat insulating material 14 provided on the outer peripheral material 16, the core material 13 is not disposed at the lowermost step and the central step corresponding to the positions of the outlet 11 and the electric light switch 12, and the jacket materials 16 are heat-welded. A through hole that exposes the outlet 11 or the electric light switch 12 is provided at the location where the outer cover material 16 between the core material 13 and the through hole adjacent to the through hole is thermally welded. Yes.

  A face seal multi-core vacuum heat insulating material 14 having a core-free portion other than the outer peripheral portion 28 and the joint portion 25 other than the outer peripheral portion 28 and the joint portion 25 at the portion (both ends in the left-right direction) where the outlet 11 and the electric light switch 12 are located on the heat-insulating modified surface 10. The face seal multi-core vacuum heat insulating material 15 having no core material 13 other than the outer peripheral portion 28 and the joint portion 25 at the portion (the central portion in the left-right direction) that does not have the outlet 11 and the light switch 12 is applied. Apply.

  The heat insulation modified surface 10 of the present embodiment is divided into five in the left-right direction, and from the left side of the heat insulation modified surface 10, a face seal multicore vacuum heat insulating material 14, a surface seal multicore vacuum heat insulating material 15, and a surface seal multicore vacuum heat insulating material. 15, the face seal multi-core vacuum heat insulating material 15 and the face seal multi-core vacuum heat insulating material 14 are arranged.

  From the core material 13 side, the jacket material 16 includes a heat-welded layer 18 made of polyethylene or the like, an aluminum foil 19 having a thickness of 10 μm or less, a second protective layer 20 made of nylon or polyethylene terephthalate, nylon or polyethylene terephthalate, or the like. The first protective layer 21 is formed.

  On the indoor sides of the left and right outer peripheral ends of the face seal multicore vacuum heat insulating materials 14 and 15, body edges 26 for fixing the surface seal multicore vacuum heat insulating materials 14 and 15 are arranged. The trunk edge 26 is also used to fix a stab prevention plate 27 that covers and protects the face seal multicore vacuum heat insulating materials 14 and 15 from the indoor side.

  Face seal multi-core vacuum heat insulating materials 14 and 15 are used for the heat-insulating renovation wall of the present embodiment, and the surface seal multi-core vacuum heat insulating materials 14 and 15 have a plurality of core materials 13 at the vacuum level. However, since the heat conductivity is small and good, the face seal multi-core vacuum heat insulating material 14 can be obtained only by deteriorating the heat insulating property even if the heat insulating deterioration occurs in the wall installation or the like for the heat insulating renovation. , 15 has the effect of reducing the deterioration of the heat insulating property. Further, the face seal multi-core vacuum heat insulating materials 14 and 15 are made of a vacuum heat insulating material in which only the outer peripheral portions of two facing outer covering materials are heat-welded or a bag-shaped outer covering material in which three sides are heat-welded. Compared to the vacuum heat insulating material in which the opening of the bag-shaped jacket material is heat-welded, the heat-welded part can be formed wider, so pinholes are generated when installing on the wall where heat insulation is renovated. Even in such a case, there is a high possibility that there is a heat welded portion between the pinhole occurrence location and the core material, and the effect that the vacuum heat insulating material is hardly thermally deteriorated is obtained.

  Moreover, the surface seal multi-core vacuum heat insulating material 14 provided in the location facing the outlet 11 or the light switch 12 among the plurality of surface seal multi-core vacuum heat insulating materials 14 and 15 is a place where the jacket materials 16 are heat-welded. A through hole exposing the outlet 11 or the light switch 12 is provided, and the outer cover material 16 between the core member 13 adjacent to the through hole and the through hole among the plurality of core members 13 is thermally welded. In addition, since there is no core material 13 in the cross section of the through hole exposing the outlet 11 or the electric light switch 12, the core material 13 can be prevented from spilling or scattering, and the core material 13 can be prevented from scattering. Therefore, there is an effect that it is not necessary to process the cut surface of the through hole. Furthermore, since the periphery of the through hole is thermally welded, and the outer cover material 16 between the core material 13 and the through hole adjacent to the through hole among the plurality of core materials 13 is thermally welded, Since the amount of air entering from the cut surface of the hole can be reduced, the effect of improving long-term reliability can be obtained.

  Further, only the face seal multi-core vacuum heat insulating material 14 provided at a location facing the outlet 11 or the light switch 12 is a special face seal having a through-hole adapted to the position, shape and size of the outlet 11 or the light switch 12. The multi-core vacuum heat insulating material 14 is used as a general-purpose surface seal multi-core vacuum heat insulating material 15 instead of the surface seal multi-core vacuum heat insulating material 15 provided at a place other than the portion facing the outlet 11 or the electric light switch 12. Since the multi-core vacuum heat insulating material 15 can be mass-produced to reduce the cost, and the size of the special face seal multi-core vacuum heat insulating material 14 having a through hole is a size obtained by dividing the heat-insulating modified surface 10 into five on the left and right, It is possible to make the heat insulation modified surface 10 smaller than a case where the special surface seal multi-core vacuum heat insulating material 14 is covered with one special surface seal multi-core vacuum heat insulating material 14, and it is easy to manufacture the special surface seal multi-core vacuum heat insulating material 14 having through holes It made.

  In the present embodiment, the arrangement of the core members 13 of the face seal multicore vacuum heat insulating materials 14 and 15 is arranged in three rows in the horizontal direction between the outlet 11 and the lamp switch 12 in the face seal multicore vacuum heat insulating material 14. The cores 13 are arranged in two stages in the vertical direction, and the cores 13 are arranged in three stages in the vertical direction above the lamp switch 12 in the face seal multi-core vacuum heat insulating material 14 and the cores of the face seal multi-core vacuum heat insulating material 15 are arranged in the vertical direction. Although the arrangement of the members 13 has been described as seven steps in the vertical direction, it is not necessary to be particular about this number.

  Moreover, although the part not subject to insulation modification has been described as the outlet 11 and the light switch 12, other parts fixed to the wall of the room such as an electric light and an alarm device may be considered as parts not subject to insulation modification. .

(Embodiment 2)
FIG. 3 is a configuration diagram of a heat-insulating renovation wall according to Embodiment 2 of the present invention.

  In the heat-insulated renovation wall according to the second embodiment, the cover material 16 is thermally welded to the face-seal multicore vacuum heat-insulating material 14 in the heat-insulated renovation wall according to the first embodiment without the core material 13 around the through hole. In the portion, a foam insulation 23 made of urethane foam, polystyrene foam, styrene foam, phenol foam, or polyethylene foam having the same thickness as the face seal multicore vacuum insulation 14 is disposed.

  In the present embodiment, the heat insulating reinforcement of the portion without the core material 13 around the through-hole (the outlet 11 or the light switch 12) in the face seal multi-core vacuum heat insulating material 14 is performed by the foam heat insulating material 23 that can be easily processed into an arbitrary shape. Can be achieved.

  The foam insulation 23 made of urethane foam, polystyrene foam, styrene foam, phenol foam, or polyethylene foam has a low thermal conductivity and is excellent in workability and flatness.

(Embodiment 3)
FIG. 4 is a cross-sectional view of a heat-insulating renovation wall according to Embodiment 3 of the present invention.

  The heat insulation renovation wall according to the third embodiment is formed on the indoor side of the face seal multi-core vacuum heat insulating materials 14 and 15 in the heat insulation renovation wall according to the second embodiment from the thickness of the trunk edge 26, and the surface seal multi-core vacuum heat insulation materials 14 and 15. A foam heat insulating material 24 made of urethane foam, polystyrene foam, styrene foam, phenol foam, or polyethylene foam having a thickness substantially the same as or slightly thinner than the dimension obtained by subtracting the thickness of the foam is arranged, and the body edge 26 and the face seal multi-core vacuum heat insulating material 14 are arranged. , 15 and the foam heat insulating material 24 from the indoor side are fixed to the body edge 26.

  The face seal multi-core vacuum heat insulating materials 14 and 15 have irregularities on the surface due to the difference in thickness between the portion where the core material 13 is present and the portion where the core material 13 is not present, and the portion where the core material 13 is present is excellent in heat insulation. The part without the material 13 has poor heat insulation performance, and it is difficult to manufacture to a thickness exceeding 10 mm. Therefore, by disposing the foam heat insulating material 24 on the indoor side of the face seal multicore vacuum heat insulating materials 14 and 15, the heat insulating performance of the portion without the core material 13 is improved, and the surface seal multicore vacuum heat insulating material from the indoor side is provided. 14 and 15 are alleviated by the foam heat insulating material 24, and the foam heat insulating material 24 prevents the surface seal multi-core vacuum heat insulating materials 14 and 15 from being directly subjected to the impact from the indoor side. It is possible to greatly reduce the possibility of heat insulation deterioration due to bag breakage in a certain part, and to secure the flatness of the heat insulation repair surface on the indoor side.

  The foam insulation 24 made of urethane foam, polystyrene foam, styrene foam, phenol foam, or polyethylene foam has a low thermal conductivity and is excellent in workability and flatness.

  The heat insulation repair wall concerning this invention can prevent the significant fall of the heat insulation performance of the whole vacuum heat insulating material, when a pinhole generate | occur | produces in a vacuum heat insulating material. In addition, vacuum insulation is superior to general-purpose insulations such as styrene foam, so it is possible to reduce the thickness of the insulation part, resulting in a smaller wall bulge dimension. Therefore, it can be applied to a wide range of practical applications without problems, and can be used for simple and high-performance insulation refurbishment by using the walls, floors, ceilings, etc. of conventional houses as they are, and has an outlet or switch. There is an effect that can also be applied to existing walls that make up the interior space. Therefore, it is useful for residential buildings, commercial buildings, and other buildings that require heat insulation.

The block diagram of the heat insulation repair wall in Embodiment 1 of this invention Sectional drawing of the face seal multicore vacuum heat insulating material used for the heat insulation repair wall of the embodiment The block diagram of the heat insulation repair wall in Embodiment 2 of this invention Sectional drawing of the heat insulation repair wall in Embodiment 3 of this invention Cross-sectional view of conventional insulation wall

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Heat insulation repair surface 11 Outlet 12 Electric light switch 13 Core material 14,15 Face seal multi-core vacuum heat insulating material 16 Outer material 18 Thermal welding layer 23 Foam heat insulating material 24 Foam heat insulating material

Claims (5)

A heat-insulating renovation wall provided with a vacuum heat insulating material on the indoor side surface of an existing wall having an outlet or a switch and constituting the indoor space,
In the vacuum heat insulating material, a plurality of core materials are arranged at a predetermined interval or more apart in a direction substantially perpendicular to the thickness direction between the gas barrier coating materials facing the heat-welding layers, and are sealed under reduced pressure. In addition, the outer cover materials are in close contact with each other so that each of the plurality of core members is located in an independent decompression space, and the outer cover members of the portions without the core member are in close contact with each other. The outer cover materials are heat welded to each other, the outer cover materials of all the portions where the outer cover materials are in close contact with each other, and the outlet or the A through-hole exposing the switch is provided, and the outer jacket material between the core material adjacent to the through-hole and the through-hole among the plurality of core materials is thermally welded. Insulated renovation wall. A heat insulation renovation wall provided with a plurality of vacuum heat insulating materials on the indoor side surface of an existing wall having an outlet or a switch and constituting an indoor space,
The plurality of vacuum heat insulating materials are sealed under reduced pressure by disposing a plurality of core members spaced apart from each other by a predetermined distance in a direction substantially perpendicular to the thickness direction between the gas barrier coating materials facing the heat-welded layers. The outer cover materials in a portion where the core material is not present are closely adhered between the outer cover materials so that each of the plurality of core materials is located in an independent decompression space. The outer jacket materials are thermally welded to each other, and the outer jacket materials of all portions where the outer jacket materials are in close contact with each other are thermally welded,
Among the plurality of vacuum heat insulating materials, the vacuum heat insulating material provided at a location facing the outlet or the switch is provided with a through hole that exposes the outlet or the switch at a location where the jacket materials are thermally welded to each other. The heat insulation renovation wall, wherein the outer covering material between the core material adjacent to the through hole and the through hole among the plurality of core materials is thermally welded.   The foam heat insulating material having substantially the same thickness as that of the vacuum heat insulating material is disposed in a portion where the core material around the through hole is absent and the outer cover materials are thermally welded to each other. Insulation renovation wall as described in   The heat insulation repair wall as described in any one of Claim 1 to 3 which has arrange | positioned the foam heat insulating material in the room inner side of the said vacuum heat insulating material.   The insulation heat-insulating wall according to claim 3 or 4, wherein the foam insulation is urethane foam, foamed polystyrene, styrene foam, phenol foam, or polyethylene foam.

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