Interior insulation structure and interior insulation construction method

Abstract

To provide an interior insulation structure and interior insulation method that can improve thermal insulation performance. [Solution] A new ceiling section 220 (opposing member) is provided in the interior space R (interior space) opposite to an interior member (ceiling section 140) that forms a predetermined interior space R. The new ceiling section 220 (opposing member) consists of multiple layers 230, 240, and 250, each containing frame members 231, 241, and 251 in which multiple longitudinal slats are assembled in a frame shape, and insulating materials 232, 242, and 252 provided inside the frame members, which are stacked in the vertical direction (inside-out direction) of the interior space R (interior space). Among the multiple layers, the frame members of adjacent layers are formed to have different shapes when viewed in the inside-out direction.

Description

Technical Field

[0001] The present invention relates to the technology of an interior insulation structure and an interior insulation construction method.

Background Art

[0002] Conventionally, the technology of an interior insulation construction method and an interior insulation structure has been known. For example, it is as described in Patent Document 1.

[0003] Patent Document 1 discloses a technique of constructing a panel composed of a purlin and a heat insulating material on the indoor side of an existing wall of a building. According to this, an improvement in heat insulation performance can be expected as compared with the case where only the existing wall is provided.

[0004] Here, the purlin is generally composed of a material having a lower heat insulation performance than the heat insulating material. Therefore, in the technique described in Patent Document 1, the purlin becomes a thermal bridge, and heat easily transfers from one space sandwiching the panel to the other space, and there may be a case where the improvement in heat insulation performance cannot be achieved.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention has been made in view of the above circumstances, and the problem to be solved is to provide an interior insulation structure and an interior insulation construction method capable of improving heat insulation performance.

Means for Solving the Problems

[0007] The problem to be solved by the present invention is as described above. Next, means for solving this problem will be described.

[0008] That is, in claim 1, an interior insulation structure is provided in the interior space in which an opposing member is provided opposite to an interior member forming a predetermined interior space, wherein the opposing member is made up of multiple layers stacked in the inward and outward directions of the interior space, and the frame members of adjacent layers are formed in different shapes when viewed in the inward and outward directions.

[0009] In claim 2, the frame material comprises an outer enclosure portion that constitutes the outer casing of the frame material, and a support portion that is erected inside the outer enclosure portion, wherein the support portions of adjacent layers are formed such that a portion of them overlaps with each other in the view in the inward and outward direction.

[0010] In claim 3, the erected portions of adjacent layers are formed to be orthogonal to each other in the view from the inside out.

[0011] In claim 4, the interior member is a ceiling member, and the frame member comprises an outer enclosure portion that constitutes the outer casing of the frame member, and a support portion that is erected inside the outer enclosure portion, wherein in the adjacent layers, the insulation material of the upper layer is supported from below by the support portion of the lower layer.

[0012] Claim 5 is an interior insulation method for which an opposing member is provided in an interior space that faces an interior member forming a predetermined interior space, wherein the opposing member is a frame material in which a plurality of elongated slats are assembled in a frame shape, and a layer portion including an insulating material provided on the inside of the frame material is stacked in the inward and outward directions of the interior space, and the frame material of adjacent layers among the plurality of layers is formed to have different shapes when viewed in the inward and outward directions.

[0013] In claim 6, the interior member is a ceiling member, and the frame member comprises an outer enclosure portion that constitutes the outer casing of the frame member, and a support portion that is erected inside the outer enclosure portion, wherein in the adjacent layers, the insulation material of the upper layer is supported from below by the support portion of the lower layer. [Effects of the Invention]

[0014] The present invention provides the following effects:

[0015] The present invention has the effect of improving thermal insulation performance. [Brief explanation of the drawing]

[0016] [Figure 1] A schematic cross-sectional view showing an interior insulation structure according to one embodiment of the present invention. [Figure 2] (a) A schematic plan view showing the first and third layers of the new ceiling section. (b) A schematic plan view showing the second layer of the new ceiling section. [Figure 3] (a) A schematic plan view showing the positional relationship of the frame members of the first, second, and third layers in a plan view. (b) A perspective view showing the overlapping portions of the erected sections of the first, second, and third layers that are connected vertically. [Figure 4] A cross-sectional view showing the structure of a house before insulation renovations were carried out (without interior insulation). [Modes for carrying out the invention]

[0017] The following describes an interior insulation structure 200 according to one embodiment of the present invention. In the following, the vertical, horizontal, and front-to-back directions are defined according to the arrows shown in the figures.

[0018] The interior insulation structure 200 according to this embodiment is a structure for improving the insulation performance of a building. The interior insulation structure 200 is constructed in a predetermined indoor space (hereinafter referred to as "indoor R") of an existing building. That is, the interior insulation structure 200 is the structure of the portion where insulation renovation is performed in the indoor R of an existing building. Note that the insulation renovation is a renovation (refurbishment) performed to improve the insulation performance of an existing building. In this embodiment, the existing building is, for example, a detached house with a lightweight steel frame structure (hereinafter simply referred to as "house H").

[0019] Note that the interior insulation structure 200 may be constructed in the indoor space of a new building (at the same timing as the construction of the building) instead of the indoor space of an existing building as described above.

[0020] First, hereinafter, using FIG. 4, the structure of the house H before insulation renovation (without the interior insulation structure 200) (hereinafter referred to as "existing structure 100") will be described. FIG. 4 shows a part of the existing structure 100 that constitutes the indoor R of the house H. In FIG. 4, the existing structure 100 includes a building body part 110, a wall part 120, a floor part 130, and a ceiling part 140.

[0021] The building body part 110 constitutes the building body of the house H. In FIG. 4, the building body part 110 includes a beam 111, a mounting member 112, and a column 113.

[0022] The beam 111 is an inter - floor beam provided between the indoor R (lower floor) and an upper floor not shown. The beam 111 is composed of an H - shaped steel having a pair of upper and lower flanges 111a and a web 111b connecting the pair of upper and lower flanges 111a. The beam 111 is arranged with its longitudinal direction in a substantially horizontal direction (in FIG. 4, the depth direction of the paper surface (front - rear direction)).

[0023] The mounting member 112 is for attaching other members of the existing structure 100 to the frame 110. The mounting member 112 has a pair of upper and lower flanges 112a and a web 112b that connects the pair of upper and lower flanges 112a to each other, and is made of an H-shaped steel with a beam depth lower than that of the beam 111. The mounting member 112 is provided below the beam 111 and is positioned with its longitudinal direction facing the front-rear direction. The upper flange 112a of the mounting member 112 is fixed to the lower flange 111a of the beam 111 using fastening means such as bolts.

[0024] The mounting member 112 also includes a mounting plate 112c made of steel plate or the like. The mounting plate 112c is joined to the outdoor end faces of a pair of upper and lower flanges 112a by welding or the like, so as to protrude slightly outwards.

[0025] Column 113 is constructed from a square steel pipe. In Figure 4, column 113 is located below the mounting member 112. The upper end of column 113 abuts against the lower flange 112a of the mounting member 112 and is joined by welding or the like.

[0026] In Figure 4, the wall portion 120 constitutes the wall of the interior R. In this embodiment, the wall portion 120 forms the interior R of the house H with the interior R as the reference point and the interior-exterior direction as the left-right direction. In Figure 4, the wall portion 120 comprises an exterior wall material 121, an insulating board material 122, an exterior insulating panel 123, an interior insulating material 124, and an interior wall material 125.

[0027] The exterior wall material 121 is installed on the leftmost (outdoor) side of the wall section 120. The exterior wall material 121 is positioned with its surface facing left to right.

[0028] The insulation board 122 constitutes part of the exterior insulation material. The insulation board 122 is positioned with its surface facing left to right, and is placed on the right side (indoor side) from the exterior wall material 121 via a ventilation layer. The insulation board 122 is made of, for example, glass wool board.

[0029] The exterior insulation panel 123, together with the insulation board material 122, etc., constitutes part of the exterior insulation material. The exterior insulation panel 123 is installed to the right of the insulation board material 122. The exterior insulation panel 123 comprises a frame 123a and exterior insulation material 123b. The frame 123a is formed in a roughly rectangular frame shape when viewed from the left to right (viewed from the inside to the outside) (not shown). The upper end of the frame 123a is fixed to the mounting plate 112c of the mounting member 112 using fixing means such as bolts. This attaches the exterior insulation panel 123 to the building structure 110. The exterior insulation material 123b is made of, for example, glass wool or rock wool, and is filled inside the frame 123a.

[0030] The interior insulation material 124, together with the exterior insulation panel 123, etc., constitutes part of the exterior insulation material. The interior insulation material 124 is installed on the right side (indoor side) of the exterior insulation panel 123. The interior insulation material 124 is made of, for example, glass wool or rock wool. Note that in Figure 4, for convenience, a portion of the interior insulation material 124 is omitted from the illustration.

[0031] The interior wall material 125 is installed on the rightmost (indoor side) of the wall section 120. The interior wall material 125 is made of, for example, gypsum board. The interior wall material 125 is arranged with its surface facing left to right.

[0032] In Figure 4, the floor section 130 constitutes the floor of the interior R. In this embodiment, the floor section 130 forms the interior R of the house H with the interior R as the reference point and the interior-outside direction as the vertical direction. The floor section 130 comprises a floor underlayment 131 and a floor surface material 132. The floor underlayment 131 is made of, for example, an ACL panel and is placed on a member that constitutes the structural frame 110. The floor surface material 132 is made of a plate-shaped member. The floor surface material 132 is placed on the floor underlayment 131.

[0033] In Figure 4, the ceiling section 140 constitutes the ceiling of the interior R. In this embodiment, the ceiling section 140 forms the interior R of the house H with the interior R as the reference point and the interior-outside direction as the vertical direction. The ceiling section 140 comprises a ceiling base material 141 and a ceiling surface material 142. The ceiling base material 141 is formed, for example, by assembling a plurality of channel steel (channel steel with lips) in a grid pattern. The ceiling base material 141 is suspended from the structure of the house H via predetermined fittings, etc. The ceiling surface material 142 is made of, for example, gypsum board. The ceiling surface material 142 is fixed to the ceiling base material 141 using fixing means such as screws.

[0034] Next, using Figures 1 and 2, we will describe the interior insulation structure 200 that was installed on the existing structure 100 as described above.

[0035] In Figure 1, the interior insulation structure 200 comprises a new wall section 210 and a new ceiling section 220.

[0036] The new wall section 210 aims to improve the thermal insulation performance of the wall portion of the interior R. The new wall section 210 is installed in the interior R so as to face the wall section 120 of the existing structure 100. As will be described later, the new wall section 210 has a laminated structure in which multiple insulation materials are stacked in the left-right direction (indoor-outdoor direction). The new wall section 210 comprises a first insulation material 211, a wall batten 212, a second insulation material 213, a third insulation material 214, and an interior wall material 215.

[0037] The first insulation material 211 is formed in a plate shape using, for example, glass wool or rock wool. The first insulation material 211 is in contact with the right side (indoor side) of the interior wall material 125 of the existing structure 100. The upper end surface of the first insulation material 211 is in contact with the lower side (indoor side) of the ceiling material 142 of the existing structure 100. The lower end surface of the first insulation material 211 is in contact with the upper side (indoor side) of the floor material 132 of the existing structure 100.

[0038] The wall battens 212 are constructed from elongated timbers. In Figure 1, the wall battens 212 are positioned with their longitudinal direction facing the front-to-back direction. The wall battens 212 also abut against the right side of the first insulation material 211. A pair of wall battens 212 are provided, one above the other. The lower wall batten 212 is fixed to the floor panel 132 of the existing structure 100. The upper wall batten 212 is fixed to the ceiling panel 142 of the existing structure 100.

[0039] The second insulation material 213 is formed in a plate shape from the same material as the first insulation material 211. The second insulation material 213 is installed on the left half between a pair of upper and lower wall battens 212. The left side surface of the second insulation material 213 is in contact with the first insulation material 211. The upper and lower end surfaces of the second insulation material 213 are in contact with the wall battens 212, respectively.

[0040] The third insulation material 214 is formed in a plate shape from the same material as the first insulation material 211. The third insulation material 214 is installed on the right half between a pair of upper and lower wall battens 212. The left side of the third insulation material 214 is in contact with the second insulation material 213. The upper and lower end surfaces of the third insulation material 214 are in contact with the wall battens 212, respectively.

[0041] The interior wall material 215 is made of, for example, gypsum board. The interior wall material 215 is fixed to a pair of upper and lower wall battens 212 using fastening means such as screws from the inside (not shown). The interior wall material 215 is either in contact with the third insulation material 214 or is provided with a small gap between them.

[0042] Thus, in the new wall section 210, multiple (three in this embodiment) insulation materials (first insulation material 211, second insulation material 213, and third insulation material 214) are stacked in the left-right direction. This improves the insulation performance in the wall section of the interior R. The three insulation materials are each fixed to other members they come into contact with using adhesive means such as double-sided tape. When the interior wall material 215 is fixed to the wall batten 212, the three insulation materials are generally sandwiched between the interior wall material 125 of the existing structure 100 and the interior wall material 215 of the interior insulation structure 200.

[0043] The new ceiling section 220 aims to improve the thermal insulation performance of the ceiling portion of the interior R. The new ceiling section 220 is installed in the interior R so as to face the ceiling section 140 of the existing structure 100. As will be described later, the new ceiling section 220 has a laminated structure in which multiple parts are stacked in the vertical direction (in the inward and outward direction of the interior R). In this embodiment, the new ceiling section 220 has a three-layer laminated structure.

[0044] In the following, the parts of the new ceiling section 220 that constitute the laminated structure will be referred to in order from top to bottom as the "first layer 230," the "second layer 240," and the "third layer 250." The new ceiling section 220 comprises the first layer 230, the second layer 240, the third layer 250, and the ceiling surface material 260.

[0045] As shown in Figures 1 and 2(a), the first layer 230 comprises a first frame material 231 and a first insulation material 232.

[0046] The first frame member 231 is formed in a frame shape by assembling multiple battens in a frame-like manner. The battens are made of elongated timber. The first frame member 231 comprises a first outer section 231a and a first erection section 231b.

[0047] The first outer casing 231a constitutes the outer (outer) portion of the first frame member 231. In this embodiment, the first outer casing 231a is formed in a roughly square frame shape when viewed from above. Specifically, the first outer casing 231a is composed of two battens whose longitudinal direction is oriented in the left-right direction, and two battens whose longitudinal direction is oriented in the front-back direction (perpendicular to the left-right direction).

[0048] The first erection section 231b constitutes the inner portion of the first frame member 231. The first erection section 231b is positioned with its longitudinal direction oriented in the front-rear direction. The first erection section 231b is erected inside the first outer enclosure section 231a. That is, the first erection section 231b is formed to extend across the front and rear battens that constitute the first outer enclosure section 231a in the front-rear direction. Multiple first erection sections 231b are provided. In this embodiment, three first erection sections 231b are provided. The three first erection sections 231b are provided at predetermined intervals from each other in the left-right direction.

[0049] In this way, the first frame member 231 is formed by the first outer casing 231a and the first erection section 231b, creating a plurality (four in this embodiment) of spaces extending in the front-rear direction.

[0050] The first insulation material 232 is installed inside the first frame material 231. The first insulation material 232 is made of, for example, glass wool or rock wool. The width (vertical length) of the first insulation material 232 is the same as or slightly shorter than that of the first frame material 231. The first insulation material 232 is in contact with the lower surface (indoor side) of the ceiling surface material 142 of the existing structure 100. Multiple (four in this embodiment) first insulation materials 232 are provided. Each of the four first insulation materials 232 has the same size and shape as the four corresponding spaces in the first frame material 231. Each of the four first insulation materials 232 is fitted into the four corresponding spaces.

[0051] Thus, the first layer 230 is formed as a panel extending substantially horizontally by the first frame material 231 and the first insulation material 232.

[0052] As shown in Figures 1 and 2(b), the second layer 240 has the same configuration as the first layer 230 rotated 90 degrees counterclockwise in a plan view. That is, the second layer 240 has a second frame member 241 (second outer frame member 241a and second erection member 241b) and a second insulation member 242, corresponding to the first frame member 231 (first outer frame member 231a and first erection member 231b) and first insulation member 232 of the first layer 230.

[0053] The second layer 240 is in contact with the first layer 230 from below. Specifically, the second outer casing 241a of the second layer 240 is in contact with the first outer casing 231a of the first layer 230 from below. Also, the second support portion 241b of the second layer 240 is in contact with the first insulation material 232 of the first layer 230 from below. In this way, the second support portion 241b of the second layer 240 supports the first insulation material 232 of the first layer 230 from below, preventing the first insulation material 232 from falling off.

[0054] As shown in Figures 1 and 2(a), the third layer 250 has the same configuration as the first layer 230. That is, the third layer 250 has a third frame member 251 (third outer frame 251a and third erection section 251b) and a third insulation material 252, corresponding to the first frame member 231 (first outer frame 231a and first erection section 231b) and first insulation material 232 of the first layer 230.

[0055] The third layer 250 is in contact with the second layer 240 from below. Specifically, the third outer casing 251a of the third layer 250 is in contact with the second outer casing 241a of the second layer 240 from below. In addition, the third support portion 251b of the third layer 250 is in contact with the second insulation material 242 of the second layer 240 from below. In this way, the third support portion 251b of the third layer 250 supports the second insulation material 242 of the second layer 240 from below, preventing the second insulation material 242 from falling off.

[0056] The ceiling panel 260 shown in Figure 1 is made of, for example, gypsum board. The ceiling panel 260 is arranged with its surface facing upwards.

[0057] Thus, in the new ceiling section 220, multiple (three in this embodiment) insulation materials (first insulation material 232, second insulation material 242, and third insulation material 252) are stacked in the vertical direction. This improves the insulation performance of the ceiling portion of the interior R.

[0058] In the following section, the relative positions of the first layer 230, the second layer 240, and the third layer 250, which are configured as described above, will be explained in detail using Figures 1 and 3.

[0059] The first layer 230, the second layer 240, and the third layer 250 are stacked in order from top to bottom as described above. In this state, the outer portions 231a, 241a, and 251a of the first layer 230, the second layer 240, and the third layer 250 are arranged to be connected vertically, in contact with other adjacent outer portions. That is, as shown in Figure 3(a), the outer portions 231a, 241a, and 251a of the first layer 230, the second layer 240, and the third layer 250 overlap each other in a plan view.

[0060] Furthermore, the erection sections 231b, 241b, and 251b of the first layer 230, the second layer 240, and the third layer 250 are provided so as to intersect in a plan view while in contact with other adjacent erection sections. That is, among the first layer 230, the second layer 240, and the third layer 250, the erection sections 231b, 241b, and 251b of adjacent layers (first layer 230 and second layer 240, second layer 240 and third layer 250) are formed to have different shapes in a plan view. In other words, the erection sections 231b, 241b, and 251b of the adjacent layers are configured so that only a portion of them overlaps in a plan view.

[0061] With this configuration, as shown in Figures 3(a) and (b), the area of ​​the overlapping portion of the erected sections 231b, 241b, and 251b that are connected vertically (hereinafter referred to as "overlapping portion P") can be made relatively small. In this way, the erected sections 231b, 241b, and 251b act as thermal bridges, making it difficult for heat to be transferred from one space to the other across the new ceiling section 220, and consequently, an effective improvement in thermal insulation performance can be achieved.

[0062] In this embodiment, the erection sections 231b, 241b, and 251b of the first layer 230, the second layer 240, and the third layer 250 are arranged to be perpendicular to each other in a plan view, while in contact with other adjacent erection sections. With this configuration, the area of ​​the overlapping portion P can be made smaller. In this way, the erection sections 231b, 241b, and 251b act as thermal bridges, making it difficult for heat to be transferred from one space to the other across the new ceiling section 220, and thereby achieving a more effective improvement in thermal insulation performance.

[0063] The following describes the method (internal insulation method) for constructing the new ceiling section 220 of the internal insulation structure 200.

[0064] In the interior insulation method according to this embodiment, the new ceiling section 220 is installed in the room R by the worker in order from the upper layer to the lower layer of the laminated structure. That is, in the interior insulation method according to this embodiment, the first layer section 230, the second layer section 240, the third layer section 250 and the ceiling surface material 260 are installed in that order.

[0065] First, when installing the first layer 230, the worker installs the first frame member 231 of the first layer 230. For example, in Figure 1, the first outer frame member 231a of the first frame member 231 is fixed to the upper wall batten 212 of the new wall 210 using screws. The first erection part 231b of the first frame member 231 is fixed to the ceiling 140 of the existing structure 100 using screws.

[0066] Next, the worker places the first insulation material 232 of the first layer 230 inside the first frame material 231, and then places the second frame material 241 of the second layer 240 from below. That is, the worker installs the second frame material 241 while the first insulation material 232 of the first layer 230 is supported from below by the second frame material 241. For example, in Figure 1, the second outer part 241a of the second frame material 241 is fixed to the first outer part 231a of the first frame material 231 using screws. Also, the second erection part 241b of the second frame material 241 is fixed to the part that overlaps with the first erection part 231b of the first frame material 231 in a plan view using screws.

[0067] In this way, once the second frame material 241 of the second layer 240 is installed, the first insulation material 232 of the first layer 230 remains positioned inside the first frame material 231. In other words, the installation of the second frame material 241 of the second layer 240 completes the installation of the first layer 230. The worker then repeats the same process to install the second layer 240 and the third layer 250 using the third layer 250 and the ceiling material 260.

[0068] With this configuration, for example, there is no need to temporarily fix the components together using materials such as double-sided tape, thus improving construction efficiency.

[0069] As described above, in the interior insulation structure 200 according to this embodiment, An interior insulation structure 200 is provided in which a new ceiling portion 220 (opposing member) is provided in the interior space R (interior space) opposite to an interior member (ceiling portion 140) that forms a predetermined interior space R, The aforementioned new ceiling section 220 (opposing member) is Multiple frame members 231, 241, and 251, each consisting of multiple elongated slats assembled in a frame-like structure, and layers 230, 240, and 250, including insulating materials 232, 242, and 252 provided inside the frame members, are stacked in multiple layers in the vertical direction (inside-out direction) of the interior space R. Among the multiple layers, the frame material of the layers adjacent to each other is They are formed with different shapes when viewed from both the inside and outside.

[0070] This configuration allows for improved thermal insulation performance. In other words, by reducing the overlapping portions (areas) of the frame members 231, 241, and 251, it becomes possible to create thermal bridges that make it difficult for heat to transfer from one space to the other across the new ceiling section 220, thereby effectively improving the thermal insulation performance.

[0071] Furthermore, in the interior insulation structure 200 according to this embodiment, The aforementioned frame material is The outer parts 231a, 241a, and 251a that constitute the outer casing of the frame material, The erection sections 231b, 241b, and 251b are installed inside the outer casing, It is equipped with, The erection sections of the adjacent layers are, In the aforementioned view from both the inside and outside, the parts are formed to overlap with each other.

[0072] With this configuration, the overlapping portions of the frame members 231, 241, and 251 can be fixed together using fastening means such as screws, thereby effectively improving the thermal insulation performance while maintaining the strength of the new ceiling section 220.

[0073] Furthermore, in the interior insulation structure 200 according to this embodiment, The erection sections of the adjacent layers are, These are formed so as to be orthogonal to each other in the aforementioned view from both the inside and outside.

[0074] This configuration allows for minimizing the overlapping areas (portions) of frame members 231, 241, and 251, thereby effectively improving thermal insulation performance.

[0075] Furthermore, in the interior insulation structure 200 according to this embodiment, The interior component is a ceiling component (ceiling section 140), The aforementioned frame material is The outer shell portion that constitutes the outer shell of the frame material, A frame section is erected inside the outer casing, It is equipped with, In the aforementioned adjacent layers, The insulation material of the upper layer is supported from below by the support structure of the lower layer.

[0076] This configuration effectively prevents the insulation material from falling off the upper layer.

[0077] Furthermore, in the interior insulation method according to this embodiment, An interior insulation method comprising providing a new ceiling section 220 (opposing member) in the interior space R (interior space) that faces an interior member forming a predetermined interior space R, As the aforementioned new ceiling section 220 (opposing member), Multiple frame members 231, 241, and 251, each consisting of multiple elongated slats assembled in a frame-like structure, and layers 230, 240, and 250, including insulating materials 232, 242, and 252 provided inside the frame members, are stacked in multiple layers in the vertical direction (inside-out direction) of the interior space R. Among the multiple layers, the frame material of the layers adjacent to each other, These are formed to have different shapes when viewed from both the inside and outside.

[0078] This configuration allows for improved thermal insulation performance.

[0079] Furthermore, in the interior insulation method according to this embodiment, The interior component is a ceiling component (ceiling section 140), The aforementioned frame material is The outer shell portion that constitutes the outer shell of the frame material, A frame section is erected inside the outer casing, It is equipped with, In the aforementioned adjacent layers, The insulation material of the upper layer is supported from below by the support structure of the lower layer.

[0080] With this configuration, for example, there is no need to temporarily fix the components together using materials such as double-sided tape, thus improving construction efficiency.

[0081] Although embodiments of the present invention have been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention as described in the claims.

[0082] For example, in this embodiment, the new ceiling section 220 has a structure in which three insulation materials (first insulation material 232, second insulation material 242, and third insulation material 252) are stacked in the vertical direction, but it is not limited to this. That is, any structure in which at least two or more insulation materials are stacked is acceptable.

[0083] In this embodiment, the new ceiling section 220 is configured such that each layer has a frame material and insulation material. However, the new wall section 210 may also be configured such that each layer has a frame material and insulation material (similar to the new ceiling section 220). In this case, a thermal bridge can be formed, making it difficult for heat to be transferred from one space to the other between the new wall section 210, thereby effectively improving the insulation performance.

[0084] Furthermore, in this embodiment, the frame sections of adjacent layers (first layer 230 and second layer 240, second layer 240 and third layer 250) are formed in different shapes in plan view, but this is not the only way. That is, the outer casings of adjacent layers can be made in different shapes. In this case, the overlapping portions (areas) of the frame members 231, 241, and 251 can be minimized, thereby effectively improving the thermal insulation performance.

[0085] Furthermore, in this embodiment, the frame sections of adjacent layers (first layer 230 and second layer 240, second layer 240 and third layer 250) are formed so that a portion of them overlaps in the inward-outward direction, but this is not limited to this. That is, the frame sections of adjacent layers do not have to overlap in the inward-outward direction. In this case, the overlapping portions (areas) of the frame members 231, 241, and 251 can be minimized, thereby effectively improving the thermal insulation performance.

[0086] In this embodiment, the erection sections 231b, 241b, and 251b of the first layer 230, second layer 240, and third layer 250 are provided so as to be perpendicular to each other in a plan view with respect to other adjacent erection sections, but this is not limited to this. That is, when the erection sections 231b, 241b, and 251b intersect with other adjacent erection sections, it is sufficient that these erection sections are not parallel to each other.

[0087] Furthermore, the building according to the present invention is not limited to residential buildings, but may also be an office building, a hospital, a school, etc. [Explanation of Symbols]

[0088] H Housing 140 Ceiling section 200 Interior insulation structure 220 New ceiling section 231·241·251 Frame material 232, 242, 252 Insulation Layers 230, 240, and 250

Claims

1. An interior insulation structure in which an opposing member is provided in the interior space that faces an interior member forming a predetermined interior space, The opposing member is, Multiple layers, each consisting of a frame material formed by assembling multiple elongated slats in a frame-like structure and an insulating material provided inside the frame material, are stacked in the inward and outward directions within the interior space. Among the multiple layers, the frame material of the layers adjacent to each other is When viewed from both the inside and outside, they are formed with different shapes from one another. Interior insulation structure.

2. The aforementioned frame material is The outer shell portion that constitutes the outer shell of the frame material, A frame section is erected inside the outer casing, It is equipped with, The erection sections of the adjacent layers are, In the view from the inside out, the parts are formed so that they overlap with each other. The interior insulation structure according to claim 1.

3. The erection sections of the adjacent layers are, In the aforementioned view in the inward and outward directions, the following are formed so as to be orthogonal to each other: The interior insulation structure according to claim 2.

4. The interior component is a ceiling component, The aforementioned frame material is The outer shell portion that constitutes the outer shell of the frame material, A frame section is erected inside the outer casing, It is equipped with, In the aforementioned adjacent layers, The insulation material of the upper layer is supported from below by the support structure of the lower layer. The interior insulation structure according to claim 1.

5. An interior insulation method comprising providing an opposing member in the interior space that faces an interior member forming a predetermined interior space, As the opposing member, Multiple layers of a frame material, in which multiple elongated slats are assembled in a frame-like structure, and layers containing insulating material provided inside the frame material, are stacked in the inward and outward directions within the interior space. Among the multiple layers, the frame material of the layers adjacent to each other, When viewed from both the inside and outside, they are formed into different shapes. Interior insulation method.

6. The interior component is a ceiling component, The aforementioned frame material is The outer shell portion that constitutes the outer shell of the frame material, A frame section is erected inside the outer casing, It is equipped with, In the aforementioned adjacent layers, The insulation material of the upper layer is supported from below by the support structure of the lower layer. The interior insulation method according to claim 5.

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