JP7380265B2 - Insulation structure of buildings, construction method of buildings and insulation materials - Google Patents

Description

The present invention relates to a heat insulating structure for a building, a building, and a method for constructing a heat insulating material.

BACKGROUND ART Conventionally, as described in Patent Document 1, it has been known to install a heat insulating material inside the walls of a building in order to make buildings such as houses highly insulated. As this heat insulating material, in addition to foamed heat insulating materials such as polystyrene, fiber-based heat insulating materials, etc., there are also heat insulating materials such as foamed polyurethane that are sprayed on at the construction site.

Patent Document 1 describes a method for constructing a heat insulating material using foamed plastic such as foamed polyurethane (urethane foam). In this construction method, first, a plate-shaped honeycomb core is placed at a construction target location within a wall frame of a building. Next, a foamed plastic precursor is sprayed onto the honeycomb core, and the precursor is foamed to produce a heat insulating material (foamed plastic). At this time, the honeycomb core is embedded within the foamed plastic as a core material.

Japanese Patent Application Publication No. 2019-73890

In Patent Document 1, when a foamed plastic precursor is sprayed into a wall frame and foamed, the heat insulating material adheres to a wide range of structural members such as columns and beams. This increases the rigidity of the structural members and makes them difficult to deform, resulting in a problem that the seismic performance of the building deteriorates.

The present invention has been made in view of the above-mentioned problems, and one of its objects is to provide a thermal insulation structure for a building that can improve thermal insulation performance while suppressing a decline in seismic performance, and a building equipped with the same. The goal is to provide the following. Another object of the present invention is to provide a method for constructing a heat insulating material that can improve the heat insulation performance of a building while suppressing deterioration in seismic performance.

A heat insulating structure for a building according to one aspect of the present invention includes: a frame including an inner surface defining the opening; a heat insulating material provided in the opening; an intervening part interposed between the inner surface and the inner surface, the intervening part is provided so that the heat insulating material adheres to a part of the inner surface and covers the remaining part of the inner surface, and The heat insulating material is not bonded to the intervening part, and the heat insulating material is bonded to an inner part of the building in the inner/outward direction than a part of the inner surface where the intervening part is provided, and the heat insulating structure is bonded to the inner surface. The intervening part further includes a base material fixed to a part of the remaining part of the frame, and the intervening part is configured to sandwich the base material between the frame body and the inner surface of a portion of the inner surface that is outside the center in the inner and outer directions. It is provided in a region other than the base material in the remaining part of the inner surface and on a surface of the base material facing the opening side so as to cover the entire surface .

In the heat insulation structure of the building, a heat insulating material is provided in the opening of the frame, and the heat insulating material is bonded to a part of the inner surface of the frame. Since airtightness between the frame and the heat insulating material is ensured at this bonded portion, the heat insulation performance of the building can be improved. Moreover, in this heat insulation structure, the intervening portion is provided on the remaining inner surface of the frame, and the heat insulating material is not adhered to the intervening portion. For this reason, compared to the case where the insulation material is bonded to the entire inner surface of the frame without any intervening parts, it is possible to suppress the deformation of the frame from being hindered by the insulation material, making it possible to improve the earthquake resistance of the building. This makes it possible to suppress performance degradation. As described above, according to the heat insulation structure of the building, the heat insulation performance of the building can be improved while suppressing deterioration in seismic performance.

In the present invention , the heat insulating material is bonded to an inner part of the inner surface of the building in an inner/outer direction than a part where the intervening part is provided.

As a result , unlike when the bond between the inner surface of the frame and the heat insulating material is located outside of the intervening part, this may occur between the heat insulating material and the intervening part when looking at the frame from inside the building. The gap can be made difficult to see.

In the present invention , the intervening portion is provided over the entire portion of the inner surface outside the center in the inner-outer direction.

This ensures a wide area of the inner surface of the frame that is cut off from the heat insulating material, thereby further improving the seismic performance of the building.

A heat insulating structure for a building according to another aspect of the present invention includes a frame including an inner surface that defines the opening, a heat insulating material provided in the opening, and a frame that includes an inner surface that defines the opening. an intervening part interposed between the heat insulating material and the insulating material, the intervening part being provided so that the heat insulating material adheres to a part of the inner surface and covering the remaining part of the inner surface; The heat insulating structure further includes a base material that is not adhered to the intervening part and is fixed to a part of the remaining inner surface of the frame so as to be sandwiched between the frame and the intervening part. , the intervening part is a tape affixed to a region other than the base material in the remaining part of the inner surface and to a surface of the base material facing the opening side , and at least the heat insulation part of the intervening part The surface of the tape facing the material side is a surface that has been subjected to a release treatment so that it can slide against the heat insulating material.

According to the above heat insulation structure of a building, it is possible to improve the heat insulation performance of the building while suppressing a decline in seismic performance. Further, it is possible to simplify the construction of providing the intervening portion on the inner surface of the frame.

In the present invention , at least a surface of the tape facing the heat insulating material in the intervening portion is a surface that has been subjected to a release treatment so as to be slidable on the heat insulating material.

This allows the frame to move relative to the heat insulating material, thereby further improving the seismic performance of the building.

In the thermal insulation structure of the building, the frame may be a frame that constitutes a wall of the building. The framework includes a pair of columns extending in the height direction and spaced apart in a horizontal direction perpendicular to the height direction, and the framework together with the pair of columns extending in the horizontal direction. A pair of beams may be included. The intervening portion may be provided on the inner surface of each of the pair of pillars and on the inner surface of each of the pair of beams.

According to this configuration, a part of the inner surface of the frame can be cut off from the heat insulating material over the entire circumference of the frame, so that the seismic performance of the building can be further improved.

A building according to another aspect of the present invention includes the above-mentioned building heat insulation structure. Therefore, according to the above-mentioned building, it is possible to improve the heat insulation performance while suppressing a decrease in seismic performance.

A method for constructing a heat insulating material according to still another aspect of the present invention is a method for constructing a heat insulating material in an opening of the frame to constitute a heat insulating structure of the building, the method comprising: preparing the frame body to which the base material is fixed to a part; and sandwiching the base material between the frame body and the inner surface of a portion of the inner surface outside the center in the inner and outer direction . providing the intervening portion to which the heat insulating material is not bonded to a region other than the base material in the remaining inner surface and a surface of the base material facing the opening side so as to cover the entire surface ; is attached to a portion of the inner surface that is inner than the center in the inner and outer directions, with the portion being provided in a region other than the base material in the remaining portion of the inner surface and on a surface of the base material facing the opening side. filling the opening with the heat insulating material that can be adhered to the inner surface.

According to this method, by filling the opening of the frame with a heat insulating material with an intervening part provided on the entire inner surface of the frame outside the center of the building in the interior and exterior directions , The entire outer part of the building than the center in the interior and exterior directions can be edged off from the insulation material. For this reason, it is possible to allow deformation of the frame while ensuring airtightness at the bond between the inner surface of the frame and the insulation material, making it possible to improve insulation performance while suppressing deterioration in seismic performance. Become.

In the present invention , the intervening portion is provided at a portion of the inner surface outside the center of the building in the interior and exterior directions. The heat insulating material is bonded to a portion of the inner surface that is inner than the center in the inner and outer directions.

Thereby , when the frame side is viewed from inside the building after construction of the heat insulating material, a gap that may occur between the heat insulating material and the interposed part can be made difficult to see.

In the above method for installing a heat insulating material, the tape serving as the intervening portion may be attached to a region other than the base material in the remaining portion of the inner surface and a surface of the base material facing the opening side .

In this way, it is possible to easily provide the intervening portion on the inner surface of the frame.

A method of constructing a heat insulating material according to still another aspect of the present invention is a method of constructing a heat insulating material in an opening of the frame to constitute a heat insulating structure of the building, the method comprising: , preparing the tape having a surface that has been subjected to a release treatment so that it can slide on the heat insulating material; and the frame body having the base material fixed to a part of the remaining inner surface. preparing an area other than the base material in the remaining part of the inner surface, and pasting the tape on a surface of the base material facing the opening side; and applying the tape to an area other than the base material in the remaining part of the inner surface. and filling the opening with the heat insulating material that can be adhered to the inner surface while the tape is attached to the surface of the base material facing the opening.

As is clear from the above description, according to the present invention, it is possible to provide a heat insulating structure for a building and a method for constructing a heat insulating material that can improve heat insulating performance while suppressing deterioration in seismic performance.

1 is a diagram schematically showing a building according to an embodiment of the present invention. 1 is a horizontal sectional view schematically showing a heat insulation structure of a building according to an embodiment of the present invention. FIG. 1 is a perspective view schematically showing the configuration of a frame assembly in an embodiment of the present invention. 1 is a flowchart for explaining a method for constructing a heat insulating material according to an embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a heat insulating structure for a building, a building, and a method for constructing a heat insulating material according to an embodiment of the present invention will be described in detail based on the drawings.

(Building)
First, the configuration of a building 100 according to this embodiment will be explained based on FIG. 1. FIG. 1 schematically shows the overall configuration of a building 100 according to this embodiment. The building 100 is a two-story wooden house, and includes a foundation 2, a first-floor wall 3 placed on the foundation 2, a second-story wall 4 placed on the first-story wall 3, and a second-story wall 4. It mainly includes a roof 5 placed above. Note that the number of floors of the building 100 is not particularly limited. Further, the building of the present invention is not limited to wooden houses, but can be applied to other buildings.

The foundation 2 is a part for supporting the first floor wall 3, the second floor wall 4, and the roof 5, and is made of reinforced concrete, for example. The foundation 2 is provided so as to rise from the ground (not shown).

The first floor wall 3 includes a plurality of frames 10 adjacent to each other in the horizontal direction. As shown in FIG. 1, each of the plurality of frames 10 has a rectangular shape that is elongated in the height direction, and is arranged side by side on the foundation 2. Similarly to the first floor wall 3, the second floor wall 4 also includes a plurality of frames 10 adjacent to each other in the horizontal direction.

(Insulation structure of buildings)
Next, the building insulation structure 1 (hereinafter also simply referred to as "insulation structure 1") according to the present embodiment, which the building 100 is equipped with, will be described based on FIGS. 2 and 3. FIG. 2 is a horizontal sectional view including the first floor wall 3 of the building 100.

The heat insulation structure 1 is a structure applied to, for example, an outer peripheral wall portion of a house. As shown in FIG. 1, the insulation structure 1 includes a frame 10, a first wall insulation material 20, an intervening part 30, an outer wall panel 40, a base material 50, a second wall insulation material 60, and a moisture-proof sheet. 61 and a gypsum board 70. Each of these components will be explained below.

The frame 10 is a framework that constitutes the frame of the outer peripheral wall of the building 100, and has a structure shown in FIG. 3. As shown in FIG. 3, the frame 10 has a rectangular shape in a front view that is long in the height direction D1, and has an opening 10A formed therein and inner surfaces 11A, 12A, 13A (hereinafter referred to as (also referred to as "inner surfaces 11A to 13A"). The inner surfaces 11A to 13A are surfaces facing the opening 10A (surfaces facing the opening 10A).

More specifically, the frame 10 includes a pair of pillars 11 extending in the height direction D1 and spaced apart in a wall direction D2 (horizontal direction) perpendicular to the height direction D1; It includes a pair of beams (a lower chord member 12 and an upper chord member 13) that extend in the direction D2 and constitute the frame body 10 together with the pair of columns 11. The lower end portions 14 of the pair of columns 11 are connected to each other by a lower chord member 12. Further, the upper end portions 15 of the pair of columns 11 are connected to each other by an upper chord member 13. The pillar 11, the lower chord member 12, and the upper chord member 13 each include inner surfaces 11A, 12A, and 13A facing the opening 10A, and the entire circumference of the opening 10A is surrounded by these inner surfaces 11A to 13A. The pillar 11, the lower chord member 12, and the upper chord member 13 in this embodiment are all members made of wood, but are not limited thereto. Further, the pillar 11 may be a stud or a half pillar.

The pillar 11, the lower chord member 12, and the upper chord member 13 are all structural members (structural frame) of the building 100. Further, the frame body 10 can be deformed according to the load and shaking applied to the building 100. Specifically, when a horizontal force F1 (FIG. 3) is applied to the building 100 during an earthquake or the like, the frame 10 is caused such that, for example, the upper end 15 of the column 11 is horizontal to the lower end 14 of the column 11. It deforms so as to be displaced in the direction (the wall surface direction D2 and the inside/outside direction D3 (wall thickness direction) of the building 100).

The first wall heat insulating material 20 is made of, for example, hard urethane foam, and is filled almost entirely in the opening 10A of the frame 10. As will be described later, the first wall insulation material 20 is formed by spraying urethane foam into the opening 10A, and is partially adhered to each of the inner surfaces 11A to 13A of the frame 10. There is.

As shown in FIG. 2, the thickness of the first wall insulation material 20 in the inside-outside direction D3 (direction perpendicular to each of the height direction D1 and wall surface direction D2, wall thickness direction) of the building 100 is the inner surface of the pillar 11. It is approximately the same as the width in the inner-outer direction D3 of 11A, or is slightly smaller than that. The first wall heat insulating material 20 has an outer surface flush with the pillar 11 in the inner-outer direction D3, and is bonded to the back surface of the plywood 41. However, the present invention is not limited to this embodiment, and a space functioning as a ventilation layer within the wall is formed between the first wall insulating material 20 and the plywood 41, and the first wall insulating material 20 and the plywood 41 are not bonded together. Good too. Further, the first wall heat insulating material 20 is not limited to one made of urethane foam.

The intervening portion 30 is interposed between the inner surfaces 11A to 13A of the frame 10 and the first wall heat insulating material 20, and in this embodiment is a tape attached to the inner surfaces 11A to 13A. That is, the intervening portion 30 is attached to the inner surface 11A of each of the pair of pillars 11, the inner surface 12A of the lower chord member 12, and the inner surface 13A of the upper chord member 13 so as to surround the periphery (four circumferences) of the opening 10A. . In this embodiment, the intervening portions 30 are attached in a single row on each of the inner surfaces 11A to 13A, but they may be attached in multiple rows.

As shown in FIG. 2, the intervening portion 30 in this embodiment is attached to the entire portion of the inner surface 11A of the column 11 outside the center in the inner and outer direction D3, and It is also attached to a part of the inner part of the center. A portion of the inner surface 11A to which the intervening portion 30 is not attached serves as a portion (adhesion margin) to which the first wall heat insulating material 20 is adhered. A base material 16 is fixed to a part of the side surface (the surface facing the first wall heat insulating material 20 side) of the plurality of pillars 11, and the intervening portion 30 is also attached to the base material 16. Further, as shown in FIG. 3, the intervening portion 30 is a tape having a constant width in the inner and outer directions D3, and is pasted over the entire inner surface 11A in the height direction D1.

As shown in FIG. 2, in this embodiment, both sides of the first wall heat insulating material 20 in the wall surface direction D2 are located on the inner side of the inner surface 11A of the column 11 in the inner-outer direction D3 than the part where the intervening part 30 is provided. glued to the part. That is, the first wall heat insulating material 20 is adhered to the entire portion of the inner surface 11A of the column 11 to which the intervening portion 30 is not attached.

Further, the surface of the tape facing the first wall heat insulating material 20 in the intervening portion 30 is subjected to a release treatment so that it can slide against the first wall heat insulating material 20. That is, the surface of the tape is coated with a release agent to which the first wall heat insulating material 20 is not adhered. As described above, in the thermal insulation structure 1 of the building according to the present embodiment, the first wall insulation material 20 is adhered to a part (inner part) of the inner surface 11A of the column 11 in the inner-outward direction D3, and An intervening part 30 (tape) is attached to the remaining part (outer part) in the inside-outside direction D3, and the first wall heat insulating material 20 is not adhered to the intervening part 30. Note that the intervening portion 30 may also be subjected to mold release treatment on surfaces other than the above-mentioned tape surface.

The intervening portion 30 is attached to the inner surface 12A of the lower chord member 12 and the inner surface 13A of the upper chord member 13 in the same manner as on the inner surface 11A of the column 11. The first wall heat insulating material 20 is also bonded to the inner surface 12A of the lower chord member 12 and the inner surface 13A of the upper chord member 13 in the same manner as to the inner surface 11A of the column 11. That is, the first wall heat insulating material 20 is bonded to a part (inner part) of the inner surface 12A of the lower chord member 12 in the inner and outer directions D3, and the intervening part 30 is attached to the remaining part (outer part) of the inner surface 12A in the inner and outer directions D3. is pasted, and the first wall heat insulating material 20 is not adhered to the interposed part 30. In addition, the first wall heat insulating material 20 is bonded to a part (inner part) of the inner surface 13A of the upper chord member 13 in the inner and outer directions D3, and an intervening part 30 is attached to the remaining part (outer part) of the inner surface 13A in the inner and outer directions D3. The first wall heat insulating material 20 is not adhered to the interposed part 30. Further, the intervening portion 30 is attached to the inner surfaces 12A and 13A over the entire length of the lower chord member 12 and the upper chord member 13, respectively.

The outer wall panels 40 (FIG. 2) are members that constitute the outermost portion of the building 100, and are arranged in plural along the outer periphery of the building 100. As shown in FIG. 2, the outer wall panel 40 is disposed on the outer side of the plywood 41 in the inner-outer direction D3, and is attached to the plywood 41 with metal fittings (not shown). The outer wall panel 40 has a rectangular shape when viewed from the front, and is sized to cover the entire opening 10A of the frame 10. The outer wall panel 40 is made of concrete, for example, but is not limited thereto.

The base material 50 is a member for attaching the gypsum board 70, and is made of wood that extends in the height direction D1 along the pillars 11. As shown in FIG. 2, the base material 50 is attached to the inner side surface of the pillar 11 in the inner and outer directions D3. A gypsum board 70 is attached to the base material 50.

As shown in FIG. 2, the second wall heat insulating material 60 is filled in the space between the base materials 50 adjacent to each other in the wall surface direction D2. The second wall heat insulating material 60 is, for example, a fiber-based heat insulating material such as rock wool or glass wool, but is not limited thereto.

The moisture-proof sheet 61 is a member for preventing deterioration of the building 100 due to moisture, and is attached to the inner surfaces of the base material 50 and the second wall heat insulating material 60 in the inner-outer direction D3. The gypsum board 70 is a member provided to ensure the fire resistance of the building 100, and is installed on the inner surface of the moisture-proof sheet 61 in the inner-outer direction D3, and is fixed to the base material 50. Note that, as shown in FIG. 2, the gypsum board 70 in this embodiment is made of two layers, but the invention is not limited to this.

(Insulation method)
Next, a method for constructing a heat insulating material according to this embodiment will be explained according to the flowchart in FIG. 4. In this construction method, the first wall insulation material 20 is constructed in the opening 10A of the frame 10 in the building 100 according to the procedure described below.

First, an intervening portion 30 to which the first wall heat insulating material 20 is not bonded is provided in a part of the inner surfaces 11A to 13A of the frame 10 that define the opening 10A (step S10). Specifically, with each of the pillars 11, plywood 41, and outer wall panel 40 arranged as shown in FIG. 2, a tape serving as the intervening portion 30 is attached to a portion of each of the inner surfaces 11A to 13A. As described above, the tape has been subjected to a release treatment on the surface opposite to the surface to be applied to the inner surfaces 11A to 13A.

In step S10 in this embodiment, the intervening portion 30 is attached to a portion of the inner surfaces 11A to 13A outside the center in the inner-outer direction D3. Specifically, as shown in FIG. 2, the intervening portion 30 is attached to the entire portion of the inner surface 11A that is outside the center in the medial-lateral direction D3, and the intervening portion 30 is attached to the entire portion of the inner surface 11A that is inner than the center in the medial-lateral direction D3. The intervening part 30 is also pasted on a part of (the same applies to the inner surface 12A of the lower chord member 12 and the inner surface 13A of the upper chord member 13).

Next, urethane foam, which is the first wall heat insulating material 20, is prepared (step S20). Specifically, urethane resin and foaming agent are transported to the construction site by truck or the like, and then mixed together at the construction site. The urethane foam (first wall heat insulating material 20) obtained by this mixing operation is liquid and can be adhered to the inner surfaces 11A to 13A of the frame 10.

Next, the first wall heat insulating material 20 is filled into the opening 10A with the intervening portion 30 pasted to a portion (outside portion) of each of the inner surfaces 11A to 13A in step S10 (step S30). ). Specifically, the foamed urethane obtained in step S20 is sprayed onto the plywood 41 toward the back surface (inner surface in the inner and outer direction D3).

Then, the sprayed foamed urethane foams and hardens within the opening 10A, thereby filling the inside of the opening 10A with the first wall heat insulating material 20. At this time, the first wall heat insulating material 20 is bonded to a portion of the inner surfaces 11A to 13A of the frame body 10 that is inner than the center in the inner-outer direction D3 (a portion to which the intervening portion 30 is not attached). Note that if the thickness of the first wall heat insulating material 20 exceeds the width of the inner surface 11A, the excess portion may be cut off with a cutter.

Then, the surface of the first wall insulation material 20 is cleaned with air (step S40), and the space between the base materials 50 is filled with the second wall insulation material 60, which is rock wool or the like (step S50). Thereafter, the moisture-proof sheet 61 and the gypsum board 70 are sequentially attached (steps S60 and S70), thereby obtaining the heat insulation structure 1 for the building according to the present embodiment.

As described above, in the thermal insulation structure 1 for a building according to the present embodiment, the opening 10A of the frame 10 is filled with the first wall insulation material 20, and some of the inner surfaces 11A to 13A of the frame 10 ( A first wall heat insulating material 20 is bonded to the inner portion). Airtightness between the frame body 10 and the first wall insulation material 20 is ensured at this bonded portion, and intrusion of outside air from the outside into the interior of the house is suppressed, so that the insulation performance of the house can be improved. .

Moreover, in the heat insulation structure 1, the intervening part 30 is attached to the remaining part (outside part) of the inner surfaces 11A to 13A of the frame 10, and both sides of the first wall heat insulating material 20 in the wall surface direction D2 are attached to the intervening part 30. The tape does not adhere to the surface. Therefore, the deformation of the frame 10 is inhibited due to the adhesion of the first wall heat insulating material 20, compared to the case where the first wall heat insulating material 20 is bonded to the entire inner surface 11A to 13A of the frame 10. can be suppressed. That is, when the first wall insulation material 20 is bonded to the entire inner surface 11A to 13A of the frame body 10, the rigidity of the frame body 10 becomes high, and the deformation of the frame body 10 at the time of an earthquake occurs due to the first wall insulation material 20. This will be hindered by On the other hand, according to the heat insulation structure 1 according to the present embodiment, the frame body 10 is partially cut off from the first wall heat insulating material 20 by the intervening part 30, and the tape surface of the intervening part 30 and the first wall heat insulating material Deformation of the frame body 10 is allowed by sliding between the frame body 20 and the frame body 20 . Therefore, according to the above heat insulation structure 1, it is possible to improve the heat insulation performance of the walls of the house while suppressing the deterioration of seismic performance.

(Other embodiments)
Other embodiments of the invention will now be described.

In the embodiment described above, the case where the intervening part 30 is pasted with tape so as to surround the entire circumference of the opening 10A has been described as an example, but the present invention is not limited to this. That is, it is sufficient that the intervening portion 30 is attached to at least one of the inner surface 11A of the column 11, the inner surface 12A of the lower chord member 12, and the inner surface 13A of the upper chord member 13. For example, the intervening portion 30 may be attached only to the inner surface 11A of the column 11. may be affixed, the intervening portion 30 may be affixed only to the inner surface 12A of the lower chord material 12, or the intervening portion 30 may be affixed only to the inner surface 13A of the upper chord material 13. .

In the above embodiment, a case has been described in which the intervening portion 30 is attached to the outer portion in the inner-outer direction D3 of each of the inner surfaces 11A to 13A, and the first wall heat insulating material 20 is adhered to the inner portion in the inner-outward direction D3. , but not limited to. The relationship between the adhesion position of the intervening portion 30 and the adhesion position of the first wall heat insulating material 20 may be reversed from the embodiment shown in FIG. 2 .

In the above embodiment, the tape was described as an example of the intervening part, but the present invention is not limited to this. For example, a narrow fiber-based heat insulating material, a foamed airtight material, or the like may be used as the intervening portion.

In the above embodiment, a case has been described in which the heat insulation structure 1 is applied to the outer peripheral wall portion of a house, but the present invention is not limited thereto. For example, the present invention may be applied to a case where a heat insulating material is constructed by spraying urethane foam onto the floor or ceiling of a building.

In the above embodiment, the frame body 10 has a rectangular shape, but it may have a trapezoidal shape or a triangular shape, for example.

In the embodiment described above, a case has been described in which the base material 50 and the second wall heat insulating material 60 filled in the space between the adjacent base materials 50 are used, but the present invention is not limited thereto. For example, the gypsum board 70 can be attached to the pillar 11 without providing the base material 50 and the second wall heat insulating material 60. In this case, the moisture-proof sheet 61 is also attached to the pillar 11 in the same way.

In the above embodiment, a case has been described in which the second wall heat insulating material 60 is used, which is filled in the space between the adjacent base materials 50, but the present invention is not limited thereto. For example, it is also possible to fill the first wall insulating material 20 up to the indoor end of the base material 50 without providing the second wall insulating material 60.

The embodiments disclosed herein are illustrative in all respects and should be understood not to be restrictive. The scope of the present invention is indicated by the claims rather than the above description, and it is intended that all changes within the meaning and range equivalent to the claims are included.

1 Thermal insulation structure of the building 10 Frame 10A Opening 11 Column 12 Lower chord 13 Upper chord 11A, 12A, 13A Inner surface 20 First wall insulation 30 Intervening part 100 Building D1 Height direction D2 Wall direction (horizontal direction)
D3 Inner/outer direction

Claims (7)

A thermal insulation structure of a building,
a frame having an opening formed therein and including an inner surface defining the opening;
a heat insulating material provided in the opening;
an intervening part interposed between the inner surface and the heat insulating material,
The intervening part is provided so that the heat insulating material adheres to a part of the inner surface and covers the remaining part of the inner surface, and the heat insulating material does not adhere to the intervening part,
The heat insulating material is adhered to an inner part of the inner surface in the inner and outer directions of the building than a part where the intervening part is provided,
The heat insulating structure further includes a base material fixed to a portion of the remaining inner surface,
The intervening part is configured to sandwich the base material between the frame body and to cover the entire portion of the inner surface outside the center in the inner and outer directions, except for the base material in the remaining part of the inner surface. an insulating structure for a building, the insulation structure being provided on a region and a surface of the base material facing the opening side . A thermal insulation structure of a building,
a frame having an opening formed therein and including an inner surface defining the opening;
a heat insulating material provided in the opening;
an intervening part interposed between the inner surface and the heat insulating material,
The intervening part is provided so that the heat insulating material adheres to a part of the inner surface and covers the remaining part of the inner face, and the heat insulating material is not adhered to the intervening part,
The heat insulating structure further includes a base material fixed to a remaining part of the inner surface of the frame so as to be sandwiched between the frame and the intervening part,
The intervening part is a tape attached to a region other than the base material in the remaining part of the inner surface and a surface of the base material facing the opening side ,
A heat insulating structure for a building, wherein at least a surface of the tape facing the heat insulating material in the intervening portion is a surface subjected to a release treatment so as to be slidable on the heat insulating material. The frame is a framework that constitutes a wall of the building,
The framework includes a pair of columns extending in the height direction and spaced apart in a horizontal direction perpendicular to the height direction, and the framework together with the pair of columns extending in the horizontal direction. including a pair of beams;
The insulation structure for a building according to claim 1 or 2, wherein the intervening portion is provided on the inner surface of each of the pair of columns and the inner surface of each of the pair of beams. A building comprising the building insulation structure according to any one of claims 1 to 3. A method of constructing the heat insulating material in the opening of the frame to configure the heat insulating structure of the building according to claim 1 ,
preparing the frame body with the base material fixed to a portion of the remaining inner surface;
The base material is sandwiched between the frame and the area other than the base material in the remaining inner surface so as to cover the entire portion of the inner surface outside the center in the inner and outer directions, and , providing the intervening portion to which the heat insulating material is not bonded to the surface of the base material facing the opening side ;
In a state where the intervening portion is provided in a region other than the base material in the remaining part of the inner surface and on a surface of the base material facing the opening side , in a portion of the inner surface that is inner than the center in the inner and outer directions. A method of installing a heat insulating material, the method comprising: filling the opening with the insulating material capable of being adhered to the inner surface in a bonding manner. 6. The method for constructing a heat insulating material according to claim 5, wherein the tape serving as the intervening portion is attached to a region other than the base material in the remaining portion of the inner surface and to a surface of the base material facing the opening side . A method of constructing the heat insulating material in the opening of the frame to configure the heat insulating structure of the building according to claim 2 ,
preparing, as the intervening portion, the tape having a surface that has been subjected to a release treatment so that it can slide against the heat insulating material;
preparing the frame body with the base material fixed to a portion of the remaining inner surface;
Attaching the tape to an area other than the base material in the remainder of the inner surface and to a surface of the base material facing the opening side;
With the tape attached to the remaining part of the inner surface other than the base material and the surface of the base material facing the opening , the heat insulating material that can be adhered to the inner surface is placed inside the opening. filling the
Insulation construction methods, including:

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