Heat insulation and waterproof structure, heat insulation and waterproof member, and construction method of heat insulation and waterproof structure

Abstract

A heat insulation waterproof structure (20) comprises a heat insulation waterproof member (30) provided to a building body (2). The building body (2) includes a foundation (3) and an outer wall body (4A) to which the foundation (3) is provided. The outer wall body (4A) includes ironwork (5) provided on the foundation (3), a column (6) erected on the foundation (3) via the ironwork (5), and a backing material (7) provided on the column (6). The heat insulation waterproof member (30) has a heat insulation member (31) and a waterproof member (32) integrated with the heat insulation member (31), and is disposed on the outside of the outer wall body (4A) so as to extend along the outer wall body (4A) at a height at which the ironwork (5) is positioned.

Description

Technical Field

[0001] The present disclosure relates to a heat insulation and waterproof structure, a heat insulation and waterproof member, and a construction method of a heat insulation and waterproof structure.

Background Art

[0002] In a building, a frame structure in which columns are erected on a foundation via metal fittings is known (for example, Patent Document 1). Patent Document 1 discloses that condensation occurs in such metal fittings. A structure in which a heat insulation member is provided to prevent condensation occurring near the foundation of a building is known (for example, Patent Document 2). In Patent Document 2, a heat insulation member is provided outside the wall base.

[0003] Also, in a building, there is a risk that water may enter the building from gaps near the foundation. Patent Document 3 discloses a structure for filling a gap between a base provided on the side surface of a foundation and an exterior material as a waterproof structure of a building. In Patent Document 3, a waterproof member (a sealing material in Patent Document 3) is provided in the gap between the base and the exterior material.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] In a building, when columns are erected on a foundation via metal fittings, a heat insulation member for preventing condensation is provided on the metal fittings. Also, for waterproofing, a waterproof member is provided around the foundation of the building. Thus, around the foundation of the building, it is necessary to construct a plurality of members such as a heat insulating material and a waterproof material.

[0006] The present disclosure aims to provide a heat-insulating and waterproof structure for a building, a heat-insulating and waterproof member used for the heat-insulating and waterproof structure, and a construction method of the heat-insulating and waterproof structure, which can improve the constructability of the building.

Means for Solving the Problems

[0007] (1) The heat-insulating and waterproof structure for solving the above problems is a heat-insulating and waterproof structure for a building, comprising a heat-insulating and waterproof member provided on a building main body. The building main body includes a foundation and an outer wall main body provided on the foundation. The outer wall main body includes hardware provided on the foundation, a column erected on the foundation via the hardware, and a base material provided on the column. The heat-insulating and waterproof member has a heat-insulating member and a waterproof member integrated with the heat-insulating member, and is disposed along the outer wall main body at a height where the hardware is located on the outer side of the outer wall main body. According to this configuration, since the heat-insulating member and the waterproof member are integrated, the construction process of attaching the heat-insulating member and the waterproof member to the outer wall main body can be reduced as compared with the case where the heat-insulating member and the waterproof member are provided separately. Since the heat-insulating member and the waterproof member can be preferably attached to the outer wall main body, the heat-insulating and waterproof structure can improve the constructability of the building.

[0008] (2) In the heat-insulating and waterproof structure of (1) above, the waterproof member is disposed closer to the foundation than the heat-insulating member. According to this configuration, since the waterproof member is likely to contact the foundation, the gap between the foundation and the heat-insulating member can be preferably covered by the waterproof member. Therefore, the heat-insulating and waterproof member can be preferably disposed on the outer wall main body so that the waterproof member fills the gap between the foundation and the heat-insulating member.

[0009] (3) In the heat insulation and waterproof structure of (1) or (2) above, the heat insulation and waterproof member has an auxiliary member, and the auxiliary member has a first portion to which the heat insulation member and the waterproof member are attached, and a second portion provided along the heat insulation member. According to this configuration, the heat insulation member and the waterproof member can be preferably integrated by the first portion of the auxiliary member. Further, since the second portion of the auxiliary member is along the heat insulation member, when the heat insulation and waterproof member is provided on the building body, the deformation of the heat insulation member can be preferably suppressed by the second portion.

[0010] (4) In the heat insulation and waterproof structure according to any one of (1) to (3) above, the building body further includes a drain member provided between the foundation and the base material in the height direction, and a waterproof sheet provided on the outer surface of the base material. The heat insulation and waterproof member is disposed below the lower surface of the base material. The drain member is fixed to the outer surface of the heat insulation and waterproof member, and the lower end portion of the waterproof sheet covers the upper end portion of the drain member. According to this configuration, since the water flowing on the waterproof sheet is preferably guided to the drain member, the drainage property of the building can be improved.

[0011] (5) In the heat insulation and waterproof structure of (4) above, the heat insulation and waterproof member further includes a fixing member for fixing the lower end portion of the waterproof sheet to the upper end portion of the drain member. The fixing member has an adhesive portion to which the lower end portion of the waterproof sheet adheres, and is integrated with the waterproof member and the heat insulation member. According to this configuration, since the lower end portion of the waterproof sheet is adhered to the heat insulation and waterproof member by the fixing member, and the drain member is fixed to the outer surface of the heat insulation and waterproof member, the intrusion of water between the waterproof sheet and the drain member can be suppressed.

[0012] (6) The heat insulation and waterproof member for solving the above problems is a heat insulation and waterproof member used in the heat insulation and waterproof structure of a building, and has a heat insulation member and a waterproof member integrated with the heat insulation member. The heat insulation member is configured in a tape shape so as to be arranged along the lower end portion of the outer wall main body of the building, and the waterproof member is provided along the lower end of the heat insulation member. According to this configuration, since the heat insulation member and the waterproof member are integrated, the construction process of attaching the heat insulation member and the waterproof member to the outer wall main body can be reduced. In addition, since the heat insulation member is configured in a tape shape and the waterproof member is provided along the lower end of the heat insulation member, it is easy to install the heat insulation and waterproof member along the outer wall main body of the building. Since the heat insulation member and the waterproof member can be preferably attached to the outer wall main body, the heat insulation and waterproof structure can improve the constructability of the building.

[0013] (7) The construction method of the heat insulation and waterproof structure for solving the above problems is a construction method of the heat insulation and waterproof structure provided in the building main body. The building main body includes a foundation and an outer wall main body provided on the foundation. The outer wall main body includes hardware provided on the foundation, a column erected on the foundation via the hardware, and a base material provided on the column. The method includes a step of providing the heat insulation and waterproof structure by using a heat insulation and waterproof member. The heat insulation and waterproof member has a heat insulation member and a waterproof member integrated with the heat insulation member. In this step, the heat insulation and waterproof member is arranged between the lower surface of the base material of the outer wall main body and the foundation so that the waterproof member contacts the foundation so that no gap is generated between the heat insulation member and the foundation. According to this configuration, since the heat insulation member and the waterproof member can be arranged on the outer wall main body at the same time, the construction man-hours of the building can be reduced. Therefore, the construction method of the heat insulation and waterproof structure can improve the constructability of the building.

Effect of the Invention

[0014] The heat insulation and waterproof structure, the heat insulation and waterproof member, and the construction method of the heat insulation and waterproof structure of the present disclosure can improve the constructability of a building.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Mode for Carrying Out the Invention

[0016] <Embodiment> With reference to FIGS. 1 to 3, a heat insulation and waterproof structure 20, a heat insulation and waterproof member 30, and a construction method of the heat insulation and waterproof structure 20 according to the embodiment will be described.

[0017] <Building> As shown in FIG. 1, the building 1 includes a building main body 2. Examples of the building 1 include a house, a single-family office, a medical facility, and the like. The building main body 2 includes a foundation 3 and an outer wall 4 provided on the foundation 3. The outer wall 4 includes an outer wall main body 4A. The foundation 3 is made of, for example, reinforced concrete. The outer wall main body 4A is provided on the foundation 3. The building 1 further includes a roof that covers the indoor space formed by the outer wall main body 4A.

[0018] The outer wall body 4A includes a metal fitting 5 provided on the foundation 3, a column 6 erected on the foundation 3 via the metal fitting 5, and a base material 7 provided on the column 6. The metal fitting 5 is installed on the upper surface 3X of the foundation 3. The metal fitting 5 is used to join the column 6 to the foundation 3. The metal fitting 5 has a base plate 8 installed on the upper surface 3X of the foundation 3, a butt plate 9 for receiving the lower end 6Y of the column 6, a connection plate 9A connecting the base plate 8 and the butt plate 9, and an insertion plate (not shown) extending vertically from the butt plate 9. The base plate 8 is joined to the foundation 3 by, for example, anchor bolts. The butt plate 9 is supported on the base plate 8 by the connection plate 9A. The shape of the connection plate 9A is not particularly limited as long as the connection plate 9A can support the butt plate 9 on the base plate 8. The insertion plate of the metal fitting 5 is provided on the butt plate 9 so as to be inserted into a slit of the column 6. The insertion plate of the metal fitting 5 is joined to the column 6 by a drift pin in a state of being inserted into the slit of the column 6. The column 6 is made of, for example, wood or steel. The base material 7 is arranged along the side surface of the column 6. An example of the base material 7 is structural plywood, gypsum board, or the like.

[0019] The outer wall body 4A includes a lower frame member 10 connected to the column 6. The lower frame member 10 is installed on the upper surface 3X of the foundation 3. The outer surface of the lower frame member 10 is arranged to be flush with the outer surface of the column 6. The outer wall body 4A includes an outer wall heat insulating member 11 arranged on the lower frame member 10. The outer wall heat insulating member 11 is provided on the outer wall body 4A to maintain the indoor temperature of the building 1. The outer wall heat insulating member 11 is arranged in a space surrounded by the column 6 and the lower frame member 10. The outer wall heat insulating member 11 is made of, for example, a glass wool heat insulating material. The outer wall body 4A includes, for example, another column 6 arranged parallel to the column 6, and the lower frame member 10 and the outer wall heat insulating member 11 are arranged between the column 6 and the other column 6.

[0020] The building body 2 further includes a drainage member 12 provided between the foundation 3 and the base material 7 in the height direction X1, and a waterproof sheet 13 provided on the outer surface 7A of the base material 7. The drainage member 12 is arranged to guide the water flowing to the outer wall body 4A to the ground so that water does not flow onto the upper surface 3X of the foundation 3. The drainage member 12 has a drainage attachment portion 14 attached to a heat-insulating and waterproof member 30 described later, and a drainage portion 15 extending from the drainage attachment portion 14. The drainage portion 15 is configured to extend from near the lower end of the base material 7 and cover the upper part of the outer surface of the foundation 3 in a state where the drainage member 12 is attached near the lower end of the base material 7. The waterproof sheet 13 suppresses water from entering the base material 7 by being attached to the outer surface of the base material 7. The waterproof sheet 13 is arranged between the base material 7 and the exterior material 16.

[0021] The lower end portion 13Y of the waterproof sheet 13 covers the upper end portion 12X of the drainage member 12. The upper end portion 12X of the drainage member 12 includes, for example, the drainage attachment portion 14 of the drainage member 12. The lower end portion 13Y of the waterproof sheet 13 covers the upper end portion 12X of the drainage member 12 so that the water flowing on the waterproof sheet 13 flows to the drainage portion 15 of the drainage member 12 (see FIG. 2).

[0022] An exterior material 16 that forms the outer surface of the building body 2 is provided on the outer wall body 4A. The exterior material 16 is provided outside the building 1 relative to the base material 7. In FIG. 1, for the sake of clarity of each component, a part of the base material 7, the lower frame member 10, the outer wall heat-insulating member 11, the drainage member 12, the waterproof sheet 13, and the exterior material 16 is cut to show their cross-sections.

[0023] <Heat-insulating and waterproof structure> The building 1 is provided with a heat-insulating and waterproof structure 20. The heat-insulating and waterproof structure 20 is provided on the building body 2 so as to improve the heat insulation and waterproof performance of the building 1. The heat-insulating and waterproof structure 20 is configured to cover at least a part of the outer wall body 4A. In this embodiment, the heat-insulating and waterproof structure 20 is configured to cover the outside of the metal fittings 5 and the lower frame member 10.

[0024] <Heat-insulating and waterproof member> The heat insulation and waterproof structure 20 includes a heat insulation and waterproof member 30 provided on the building main body 2. The heat insulation and waterproof member 30 is used for the heat insulation and waterproof structure 20 of the building 1. The heat insulation and waterproof member 30 is arranged along the outer wall main body 4A at the height where the metal fittings 5 are located on the outer side of the outer wall main body 4A. The heat insulation and waterproof member 30 is arranged so as to overlap the metal fittings 5 and the lower frame member 10 in the horizontal direction. The heat insulation and waterproof member 30 is arranged so as to overlap the lower end 6Y of the column 6 in the horizontal direction. The heat insulation and waterproof member 30 is attached to the outer side of the outer wall main body 4A, for example, by being nailed to the lower frame member 10.

[0025] As shown in FIG. 2, the heat insulation and waterproof member 30 is arranged below the lower surface 7Y of the base material 7. The heat insulation and waterproof member 30 is arranged between the lower surface 7Y of the base material 7 and the upper surface 3X of the foundation 3 in the height direction X1.

[0026] As shown in FIG. 3, the heat insulation and waterproof member 30 has a heat insulation member 31 and a waterproof member 32. The waterproof member 32 is integrated with the heat insulation member 31. The heat insulation and waterproof member 30 is formed to extend in the first direction D1. The first direction D1 coincides with the direction along the outer wall main body 4A when the heat insulation and waterproof member 30 is provided on the building main body 2 in plan view (see FIG. 1). The length of the heat insulation and waterproof member 30 in the first direction D1 is changed according to the configuration of the outer wall main body 4A. The waterproof member 32 and the heat insulation member 31 are integrated so as to be arranged side by side in the second direction D2 perpendicular to the first direction D1. The second direction D2 coincides with the height direction X1 when the heat insulation and waterproof member 30 is provided on the building main body 2 (see FIG. 2).

[0027] As shown in FIG. 2, the heat insulation member 31 is arranged along the metal fittings 5 and the lower frame member 10. The heat insulation member 31 is arranged so as to cover at least a part of the outer surface 5A of the metal fittings 5. The outer surface 5A of the metal fittings 5 is the surface facing the outside of the building 1 of the metal fittings 5. The heat insulation member 31 may be in contact with the side surface of the butt plate 9 of the metal fittings 5. The heat insulation member 31 is made of a material such as foamed urethane or polystyrene foam, for example.

[0028] The waterproof member 32 is disposed below the heat insulation member 31. The waterproof member 32 is disposed closer to the foundation 3 than the heat insulation member 31. The waterproof member 32 is disposed between the heat insulation member 31 and the foundation 3. The waterproof member 32 is disposed on the upper surface 3X of the foundation 3 so as to close the gap between the heat insulation member 31 and the upper surface 3X of the foundation 3 in a state where the heat insulation waterproof member 30 is attached to the outer wall main body 4A. The waterproof member 32 may contact the base plate 8 among the metal fittings 5. The waterproof member 32 is made of a material such as ethylene propylene rubber (EPT), silicone rubber, natural rubber, etc.

[0029] The heat insulation member 31 is configured in a tape shape so as to be disposed along the lower end portion 4Y of the outer wall main body 4A of the building 1. The waterproof member 32 is provided along the lower end 31Y of the heat insulation member 31. In the height direction X1, the size of the waterproof member 32 is smaller than the size of the heat insulation member 31. The heat insulation member 31 and the waterproof member 32 are integrated so that the surfaces facing the metal fittings 5 and the lower frame member 10 are flush. In the third direction D3, the thickness of the waterproof member 32 is larger than the thickness of the heat insulation member 31 (see FIG. 3). The third direction D3 is a direction perpendicular to both the first direction D1 and the second direction D2.

[0030] As shown in FIG. 3, the heat insulation waterproof member 30 has an auxiliary member 33. The auxiliary member 33 is integrated with the heat insulation member 31 and the waterproof member 32. The auxiliary member 33 is made of a material harder than the heat insulation member 31. The auxiliary member 33 is made of resin. The auxiliary member 33 is made of a material such as polypropylene (PP), polyethylene (PE), etc.

[0031] The auxiliary member 33 has a first portion 34 to which the heat insulating member 31 and the waterproof member 32 are attached, and a second portion 35 provided along the heat insulating member 31. The first portion 34 is formed in a plate shape perpendicular to the second direction D2. The heat insulating member 31 is adhered to the upper surface 34X of the first portion 34, and the waterproof member 32 is adhered to the lower surface 34Y of the first portion 34. The heat insulating member 31 and the waterproof member 32 are integrated by being adhered to the first portion 34 respectively. In the third direction D3, the dimension of the first portion 34 is equal to or larger than the dimension of the waterproof member 32.

[0032] The second portion 35 of the auxiliary member 33 is formed in a plate shape perpendicular to the third direction D3. The second portion 35 is provided along the heat insulating member 31. The second portion 35 may be adhered to the heat insulating member 31. The second portion 35 is located between the metal fittings 5 and the lower frame member 10 and the heat insulating member 31 (see FIG. 2). In the second direction D2, the lower end portion 35Y of the second portion 35 is connected to the first portion 34. The second portion 35 is integrally formed with the first portion 34.

[0033] As shown in FIG. 2, the heat insulating and waterproof member 30 further includes a fixing member 36. The fixing member 36 fixes the lower end portion 13Y of the waterproof sheet 13 to the upper end portion 12X of the drain member 12. The fixing member 36 is formed in a sheet shape. An example of the fixing member 36 is a rubber sheet. The fixing member 36 is disposed so as to cover the upper ends of the heat insulating member 31 and the auxiliary member 33 respectively.

[0034] As shown in FIG. 3, the fixing member 36 is integrated with the waterproof member 32 and the heat insulating member 31. The fixing member 36 has an attachment portion 36X and an extension portion 36Y extending from the attachment portion 36X. The fixing member 36 is integrated with the waterproof member 32 and the heat insulating member 31 by the attachment portion 36X being adhered to the auxiliary member 33. The fixing member 36 may be adhered to the heat insulating member 31.

[0035] The fixing member 36 has an adhesive portion 37A to which the lower end portion 13Y of the waterproof sheet 13 adheres (see FIG. 2). The fixing member 36 further has an additional adhesive portion 37B to which the outer surface of the upper end portion 12X of the drain member 12 adheres. The adhesive portion 37A and the additional adhesive portion 37B are provided on the extension portion 36Y. The adhesive portion 37A is provided on one side of the extension portion 36Y. The additional adhesive portion 37B is provided on the surface of the extension portion 36Y on the back side of the adhesive portion 37A. The adhesive portion 37A and the additional adhesive portion 37B are, for example, adhesive tapes. The extension portion 36Y is disposed outside the upper end portion 12X of the drain member 12 and is provided inside the lower end portion 13Y of the waterproof sheet 13. By adhering the additional adhesive portion 37B of the extension portion 36Y to the upper end portion 12X of the drain member 12 and adhering the lower end portion 13Y of the waterproof sheet 13 to the adhesive portion 37A, the waterproof sheet 13 waterproofs the gap between the base material 7 and the heat insulating member 31.

[0036] The drain member 12 is fixed to the outer surface 30A of the heat insulating and waterproofing member 30. The drain member 12 is, for example, nailed to the outer surface 30A of the heat insulating and waterproofing member 30. When the fixing member 36 is bent toward the heat insulating member 31 along the broken line 36A in FIG. 3, the additional adhesive portion 37B adheres to the upper end portion 12X of the drain member 12 that is nailed to the heat insulating member 31.

[0037] <Construction method of heat insulating and waterproof structure> With reference to FIGS. 1 to 3, a construction method of the heat insulating and waterproof structure 20 provided in the building body 2 will be described.

[0038] The construction method includes a first step of providing the heat insulating and waterproof structure 20 with the heat insulating and waterproofing member 30. The construction method further includes a second step of attaching the drain member 12 and the waterproof sheet 13 to the heat insulating and waterproofing member 30.

[0039] In the first step, the heat insulation and waterproof member 30 is disposed between the lower surface 7Y of the base material 7 of the outer wall main body 4A and the foundation 3 so that the waterproof member 32 contacts the foundation 3 without leaving a gap between the heat insulation member 31 and the foundation 3. Specifically, by pressing the heat insulation and waterproof member 30 from above, the waterproof member 32 is brought into close contact with the foundation 3. With the waterproof member 32 in close contact with the foundation 3 in this way, the heat insulation member 31 of the heat insulation and waterproof member 30 is nailed to the lower frame member 10. As a result, with the waterproof member 32 filled in the gap between the foundation 3 and the heat insulation member 31, the waterproof member 32 is in close contact with the foundation 3. In this way, the heat insulation and waterproof structure 20 is provided in the building main body 2. Or, the heat insulation member 31 of the heat insulation and waterproof member 30 is nailed to the lower frame member 10. Then, the waterproof member 32 is pressed against the foundation 3 side so as to block the gap between the foundation 3 and the heat insulation member 31. The heat insulation and waterproof structure 20 may be provided in the building main body 2 in this way.

[0040] In the second step, the drain member 12 is attached to the heat insulation and waterproof member 30 by nailing the drain attachment portion 14 of the drain member 12 to the heat insulation member 31 of the heat insulation and waterproof member 30. After the drain member 12 is nailed to the heat insulation member 31, the fixing member 36 of the heat insulation and waterproof member 30 is bent at the broken line 36A so that the additional adhesion portion 37B of the fixing member 36 is adhered to the drain attachment portion 14 of the drain member 12. Thereafter, the waterproof sheet 13 is adhered to the adhesion portion 37A of the fixing member 36 of the heat insulation and waterproof member 30.

[0041] <Function> The function of this embodiment will be described. When a metal fitting is provided on the outer wall 4 across from the outer surface to the inner surface of the outer wall main body 4A, dew condensation is likely to occur on the metal fitting as the metal fitting is cooled by the outside air. In this case, corrosion of the metal fitting, decay of the peripheral members of the metal fitting, adhesion of dirt to the metal fitting, etc. occur. Further, the metal fitting extending from the outer surface to the inner surface of the outer wall main body 4A becomes a thermal bridge that transfers heat between the outside and the inside of the room. When the outside air temperature is lower than the inside air temperature, the inside air temperature may drop due to the metal fitting cooled by the outside air, and furthermore, the comfort level inside the room may decrease. When a heat insulating member is provided outside the outer wall main body 4A, if there is a gap between the heat insulating member and the foundation, water may penetrate through the gap. Then, corrosion of the metal fitting, decay of the lower frame member 10, dirt inside the room, etc. occur. The water includes rainwater, muddy water, and water used for washing the building 1. For these reasons, in the building 1, a heat insulating member and a waterproof member are provided around the foundation.

[0042] In the heat insulating and waterproof structure 20 of the present embodiment, since the heat insulating member 31 of the heat insulating and waterproof member 30 covers the outer surface 5A of the metal fitting 5, the metal fitting 5 is hardly affected by the outside air temperature. Therefore, dew condensation on the metal fitting 5 and a decrease in the inside air temperature due to the metal fitting 5 are suppressed. Further, since the waterproof member 32 of the heat insulating and waterproof member 30 closes the gap between the heat insulating member 31 and the foundation 3, it is difficult for water to penetrate through the gap between the heat insulating member 31 and the foundation 3.

[0043] The heat insulating and waterproof structure 20 of the present embodiment further has the following features. The heat insulating and waterproof member 30 is configured such that the heat insulating member 31 and the waterproof member 32 are integrated. A structure is provided in which it is difficult to provide a gap between the heat insulating member 31 and the waterproof member 32. The upper part of the heat insulating member 31 is fixed to the lower frame member 10. An outer wall heat insulating member 11 is provided on the lower frame member 10. The lower part of the waterproof member 32 is in close contact with the foundation 3. With such a structure, a heat insulating layer that is continuously connected from the foundation 3 to the outer wall heat insulating member 11 is formed outside the metal fitting 5. The heat insulating layer is constituted by the heat insulating member 31. Due to such a heat insulating layer, the metal fitting 5 is placed in an environment close to the temperature environment on the indoor side as a whole, so that it is difficult for a temperature difference to occur between the outer surface and the inner surface of the metal fitting 5. As a result, dew condensation on the surface of the metal fitting 5 is suppressed regardless of the season such as spring, summer, rainy season, autumn, or winter.

[0044] In the heat insulation and waterproof structure 20 of this embodiment, since the heat insulation waterproof member 30 in which the heat insulation member 31 and the waterproof member 32 are integrated is used, the heat insulation member 31 and the waterproof member 32 can be provided on the outer wall main body 4A at the same time during construction. Furthermore, since the heat insulation waterproof member 30 is formed to extend in the first direction D1, it is easy to arrange along the hardware 5 and the lower frame member 10 when providing the heat insulation waterproof member 30 on the outer wall main body 4A.

[0045] Since the heat insulation member 31 and the waterproof member 32 are adhered to the first portion 34 of the auxiliary member 33 formed in a plate shape, the heat insulation member 31 and the waterproof member 32 are integrated, so that a gap is less likely to occur between the heat insulation member 31 and the waterproof member 32. For this reason, it is difficult for outside air to enter or water to inundate through the gap between the heat insulation member 31 and the waterproof member 32.

[0046] In the heat insulation and waterproof structure 20, at the fixing member 36 of the heat insulation waterproof member 30, the lower end portion 13Y of the waterproof sheet 13 is adhered to the adhesion portion 37A, and the upper end portion 12X of the drain member 12 is adhered to the additional adhesion portion 37B. In this way, the drain member 12 and the waterproof sheet 13 are arranged so that the lower end portion 13Y of the waterproof sheet 13 covers the upper end portion 12X of the drain member 12. Since no gap is generated between the waterproof sheet 13 and the drain member 12 in the height direction X1, the water flowing on the waterproof sheet 13 easily flows to the drain member 12. With such a configuration, the water is preferably guided from the outer wall main body 4A to the ground by the waterproof sheet 13 and the drain member 12, so that it is difficult for water to enter the building 1.

[0047] In the first step of the construction method of the heat insulation and waterproof structure 20, when arranging the heat insulation and waterproof member 30, since the heat insulation and waterproof member 30 may be pressed or stretched by an operator, the heat insulation member 31 may be deformed. Also, when attaching the heat insulation and waterproof member 30 to the outer wall main body 4A, when a nail is driven into the heat insulation member 31, there is also a risk that the heat insulation member 31 may be moved by the nail and cracks or the like may occur in the heat insulation member 31. In this regard, in the heat insulation and waterproof member 30 of the present embodiment, since the second portion 35 of the auxiliary member 33 is arranged along the heat insulation member 31, deformation, cracking, etc. of the heat insulation member 31 in the construction method are suppressed. For example, in the first step, even when the heat insulation and waterproof member 30 is pressed or stretched, since the second portion 35 is formed of a material harder than the heat insulation member 31, bending, shrinking, etc. of the heat insulation member 31 are less likely to occur. Therefore, the waterproof member 32 can be suitably attached to the foundation 3, and further, the waterproof member 32 can be brought into close contact with the foundation 3. Also, when a nail is driven into the heat insulation member 31, since the nail is also driven into the second portion 35 harder than the heat insulation member 31, the heat insulation member 31 is difficult to move when the nail is driven, and even if the heat insulation member 31 moves, cracks or the like are less likely to occur in the heat insulation member 31.

[0048] <Effect> The effects of the present embodiment will be described. (1) The heat insulation and waterproof structure 20 includes a heat insulation and waterproof member 30. The heat insulation and waterproof member 30 has a heat insulation member 31 and a waterproof member 32 integrated with the heat insulation member 31. The heat insulation and waterproof member 30 is arranged along the outer wall main body 4A at the height where the hardware 5 is located outside the outer wall main body 4A. According to this configuration, since the heat insulation member 31 and the waterproof member 32 are integrated, the heat insulation member 31 and the waterproof member 32 can be provided on the outer wall main body 4A at the same time. Therefore, compared with the case where the heat insulation member 31 and the waterproof member 32 are provided separately, the construction process of attaching the heat insulation member 31 and the waterproof member 32 to the outer wall main body 4A can be reduced. Since the heat insulation member 31 and the waterproof member 32 can be suitably attached to the outer wall main body 4A, the constructability of the building 1 can be improved.

[0049] (2) The waterproof member 32 is disposed closer to the foundation 3 than the heat insulating member 31. According to this configuration, since the waterproof member 32 is likely to contact the foundation 3, the gap between the foundation 3 and the heat insulating member 31 can be preferably covered by the waterproof member 32. Therefore, the heat insulating and waterproof member 30 can be preferably disposed on the outer wall main body 4A so that the waterproof member 32 fills the gap between the foundation 3 and the heat insulating member 31.

[0050] (3) The auxiliary member 33 has a first portion 34 to which the heat insulating member 31 and the waterproof member 32 are attached, and a second portion 35 provided along the heat insulating member 31. According to this configuration, the first portion 34 of the auxiliary member 33 can preferably integrate the heat insulating member 31 and the waterproof member 32. Further, since the second portion 35 of the auxiliary member 33 is along the heat insulating member 31, when the heat insulating and waterproof member 30 is provided on the building main body 2, the deformation of the heat insulating member 31 can be suppressed by the second portion 35.

[0051] (4) The heat insulating and waterproof member 30 is disposed below the lower surface 7Y of the base material 7. The water drainage member 12 is fixed to the outer surface 30A of the heat insulating and waterproof member 30. The lower end portion 13Y of the waterproof sheet 13 covers the upper end portion 12X of the water drainage member 12. According to this configuration, since the water flowing on the waterproof sheet 13 is preferably guided to the water drainage member 12, the drainage property of the building 1 can be improved.

[0052] (5) The heat insulating and waterproof member 30 further includes a fixing member 36 that fixes the lower end portion 13Y of the waterproof sheet 13 to the upper end portion 12X of the water drainage member 12. The fixing member 36 has an adhesive portion 37A to which the lower end portion 13Y of the waterproof sheet 13 adheres. The fixing member 36 is integrated with the waterproof member 32 and the heat insulating member 31. According to this configuration, since the lower end portion 13Y of the waterproof sheet 13 is adhered to the heat insulating and waterproof member 30 by the fixing member 36, and the water drainage member 12 is fixed to the outer surface 30A of the heat insulating and waterproof member 30, the intrusion of water between the waterproof sheet 13 and the water drainage member 12 can be suppressed. In this way, since the drainage property is improved by adhering the waterproof sheet 13 and the water drainage member 12 by the fixing member 36, the flow of water to the gap between the hardware 5 and the lower frame material 10 and the foundation 3 is suppressed.

[0053] (6) The heat insulation and waterproof member 30 has a heat insulation member 31 and a waterproof member 32 integrated with the heat insulation member 31. The heat insulation member 31 is configured in a tape shape so as to be arranged along the lower end portion 4Y of the outer wall main body 4A of the building 1. The waterproof member 32 is provided along the lower end 31Y of the heat insulation member 31. According to this configuration, since the heat insulation member 31 and the waterproof member 32 are integrated, the construction process of attaching the heat insulation member 31 and the waterproof member 32 to the outer wall main body 4A can be reduced. Further, since the heat insulation member 31 is configured in a tape shape and the waterproof member 32 is provided along the lower end 31Y of the heat insulation member 31, the heat insulation and waterproof member 30 can be easily installed along the outer wall main body 4A of the building 1. Since the heat insulation member 31 and the waterproof member 32 can be preferably attached to the outer wall main body 4A, the heat insulation and waterproof structure 20 can improve the constructability of the building 1.

[0054] (7) The construction method includes a first step of providing the heat insulation and waterproof structure 20 with the heat insulation and waterproof member 30. In the first step, the heat insulation and waterproof member 30 is disposed between the lower surface 7Y of the base material 7 of the outer wall main body 4A and the foundation 3 so that the waterproof member 32 contacts the foundation 3 so that no gap is generated between the heat insulation member 31 and the foundation 3. According to this configuration, since the heat insulation member 31 and the waterproof member 32 can be arranged on the outer wall main body 4A at the same time, the construction man-hours of the building 1 can be reduced. Therefore, the construction method of the heat insulation and waterproof structure 20 can improve the constructability of the building 1.

[0055] <Modification example> The above embodiment is an example of a form that the heat insulation and waterproof structure 20, the heat insulation and waterproof member 30, and the construction method of the heat insulation and waterproof structure 20 according to the embodiment can take, and is not intended to limit the form. The heat insulation and waterproof structure 20, the heat insulation and waterproof member 30, and the construction method of the heat insulation and waterproof structure 20 according to the embodiment can take a form different from the form illustrated in the above embodiment. Examples thereof are forms in which a part of the configuration of the embodiment is replaced, changed, omitted, or a new configuration is added to the embodiment. Modification examples of the embodiment are shown below.

[0056] · If the waterproof member 32 can block the gap between the foundation 3 and the heat insulating member 31, a part of the waterproof member 32 may overlap the heat insulating member 31 in the horizontal direction. In this case, the waterproof member 32 may contact the foundation 3, and the heat insulating member 31 may also contact the foundation 3.

[0057] · If the heat insulating member 31 and the waterproof member 32 can be integrated, the first part 34 may be omitted from the auxiliary member 33. When the first part 34 is omitted from the auxiliary member 33, the heat insulating member 31 and the waterproof member 32 may be directly adhered.

[0058] · The second part 35 may be omitted from the auxiliary member 33. · The first part 34 and the second part 35 of the auxiliary member 33 do not have to be integrally formed. In this modification example, the first part 34 and the second part 35 may be provided as independent plate-like members.

[0059] · In the first step of the construction method, the base material 7 may be installed on the column 6 after the first step. In this modification example, in the first step, the heat insulation waterproof member 30 is arranged on the foundation 3 so that the waterproof member 32 contacts the foundation 3 so that no gap is generated between the heat insulating member 31 and the foundation 3.

[0060] · The drain member 12 and the heat insulation waterproof member 30 may be fixed to the outer wall main body 4A at the same time. For example, the heat insulation waterproof member 30 may be attached to the outer wall main body 4A by nailing the drain member 12. In this modification example, the operation of nailing the heat insulation waterproof member 30 to the outer wall main body 4A in the first step is omitted.

[0061] The following technologies are disclosed in this specification. [Appendix 1] The heat insulation and waterproof structure is a heat insulation and waterproof structure of a building, comprising a heat insulation and waterproof member provided on the building body. The building body includes a foundation and an outer wall body provided on the foundation. The outer wall body includes metal fittings provided on the foundation, columns erected on the foundation via the metal fittings, and a base material provided on the columns. The heat insulation and waterproof member has a heat insulation member and a waterproof member integrated with the heat insulation member, and is disposed along the outer wall body at a height where the metal fittings are located on the outer side of the outer wall body.

[0062] [Appendix 2] In the heat insulation and waterproof structure according to Appendix 1, the waterproof member is disposed closer to the foundation than the heat insulation member.

[0063] [Appendix 3] In the heat insulation and waterproof structure according to Appendix 1, the heat insulation and waterproof member has an auxiliary member, and the auxiliary member has a first portion to which the heat insulation member and the waterproof member are attached, and a second portion provided along the heat insulation member.

[0064] [Appendix 4] In the heat insulation and waterproof structure according to Appendix 1, the building body further includes a drainage member provided between the foundation and the base material in the height direction, and a waterproof sheet provided on the outer surface of the base material. The heat insulation and waterproof member is disposed below the lower surface of the base material, the drainage member is fixed to the outer surface of the heat insulation and waterproof member, and the lower end portion of the waterproof sheet covers the upper end portion of the drainage member.

[0065] [Appendix 5] In the heat insulation and waterproof structure according to Appendix 4, the heat insulation and waterproof member further includes a fixing member for fixing the lower end portion of the waterproof sheet to the upper end portion of the drainage member. The fixing member has an adhesive portion to which the lower end portion of the waterproof sheet adheres, and is integrated with the waterproof member and the heat insulation member.

[0066] [Appendix 6] The heat insulation and waterproof member is a heat insulation and waterproof member used for the heat insulation and waterproof structure of a building, and has a heat insulation member and a waterproof member integrated with the heat insulation member. The heat insulation member is configured in a tape shape so as to be arranged along the lower end portion of the outer wall body of the building, and the waterproof member is provided along the lower end of the heat insulation member.

[0067] [Appendix 7] The construction method of the heat insulation and waterproof structure is a construction method of the heat insulation and waterproof structure provided on the building body. The building body includes a foundation and an outer wall body provided on the foundation. The outer wall body includes metal fittings provided on the foundation, columns erected on the foundation via the metal fittings, and a base material provided on the columns. The method includes a step of providing the heat insulation and waterproof structure with a heat insulation and waterproof member. The heat insulation and waterproof member has a heat insulation member and a waterproof member integrated with the heat insulation member. In this step, the heat insulation and waterproof member is arranged between the lower surface of the base material of the outer wall body and the foundation so that the waterproof member contacts the foundation so that no gap is generated between the heat insulation member and the foundation.

Explanation of Reference Numerals

[0068] 1... Building, 2... Building body, 3... Foundation, 4A... Outer wall body, 5... Metal fittings, 6... Column, 7... Base material, 12... Drainage member, 13... Waterproof sheet, 20... Heat insulation and waterproof structure, 30... Heat insulation and waterproof member, 31... Heat insulation member, 32... Waterproof member, 33... Auxiliary member, 34... First part, 35... Second part, 36... Fixing member, 37A... Adhesive part.

Claims

1. A heat insulation and waterproof structure of a building, comprising a heat insulation and waterproof member provided on the building body, wherein the building body comprises a foundation and an outer wall body provided on the foundation, the outer wall body includes metal fittings provided on the foundation, columns erected on the foundation via the metal fittings, and a base material provided on the columns, the heat insulation and waterproof member has a heat insulation member and a waterproof member integrated with the heat insulation member, and is disposed along the outer wall body at a height where the metal fittings are located on the outside of the outer wall body, the heat insulation member is disposed so as to cover at least a part of the outer surface of the metal fittings, a heat insulation and waterproof structure.

2. A heat insulation and waterproof structure of a building, comprising a heat insulation and waterproof member provided on the building body, wherein the building body comprises a foundation and an outer wall body provided on the foundation, the outer wall body includes metal fittings provided on the foundation, columns erected on the foundation via the metal fittings, and a base material provided on the columns, the heat insulation and waterproof member has a heat insulation member, a waterproof member integrated with the heat insulation member, and an auxiliary member, and is disposed along the outer wall body at a height where the metal fittings are located on the outside of the outer wall body, the auxiliary member has a first portion to which the heat insulation member and the waterproof member are attached and a second portion provided along the heat insulation member, a heat insulation and waterproof structure.

3. A heat insulation and waterproof structure of a building, comprising a heat insulation and waterproof member provided on the building body, wherein the building body comprises a foundation, an outer wall body provided on the foundation, a drainage member, and a waterproof sheet, the outer wall body includes metal fittings provided on the foundation, columns erected on the foundation via the metal fittings, and a base material provided on the columns, the drainage member is provided between the foundation and the base material in the height direction, the waterproof sheet is provided on the outer surface of the base material, the heat insulation and waterproof member has a heat insulation member and a waterproof member integrated with the heat insulation member, and is disposed along the outer wall body at a height where the metal fittings are located on the outside of the outer wall body and is disposed under the lower surface of the base material, the drainage member is fixed to the outer surface of the heat insulation and waterproof member, the lower end portion of the waterproof sheet covers the upper end portion of the drainage member, a heat insulation and waterproof structure.

4. The waterproof member is disposed closer to the foundation than the heat insulation member. The heat insulation and waterproof structure according to any one of claims 1 to 3.

5. The heat insulation and waterproof member has an auxiliary member, The auxiliary member has a first portion to which the heat insulation member and the waterproof member are attached, and a second portion provided along the heat insulation member. The heat insulation and waterproof structure according to claim 1.

6. The building body A drain member provided between the foundation and the base material in the height direction, Further includes a waterproof sheet provided on the outer surface of the base material, The heat insulation and waterproof member is disposed below the lower surface of the base material, The drain member is fixed to the outer surface of the heat insulation and waterproof member, The lower end portion of the waterproof sheet covers the upper end portion of the drain member. The heat insulation and waterproof structure according to claim 1.

7. The heat insulation and waterproof member further includes a fixing member for fixing the lower end portion of the waterproof sheet to the upper end portion of the drain member, The fixing member has an adhesive portion to which the lower end portion of the waterproof sheet adheres and is integrated with the waterproof member and the heat insulation member. The heat insulation and waterproof structure according to claim 3 or 6.

8. A heat insulation and waterproof member used for the heat insulation and waterproof structure of a building, A heat insulation member, A waterproof member integrated with the heat insulation member, And an auxiliary member, The heat insulation member is configured in a tape shape so as to be arranged along the lower end portion of the outer wall body of the building, The waterproof member is provided along the lower end of the heat insulation member, The auxiliary member has a first portion to which the heat insulation member and the waterproof member are attached, and a second portion provided along the heat insulation member. Heat insulation and waterproof member.

9. A construction method of a heat insulation and waterproof structure provided on a building body, The building body includes a foundation and an outer wall body provided on the foundation, The outer wall body includes hardware provided on the foundation, a column erected on the foundation via the hardware, and a base material provided on the column, Including the step of providing the heat insulation and waterproof structure with a heat insulation and waterproof member, The heat insulation and waterproof member has a heat insulation member and a waterproof member integrated with the heat insulation member, In the step, the heat insulation and waterproof member is disposed between the lower surface of the base material of the outer wall body and the foundation so that the heat insulation member covers at least a part of the outer surface of the hardware and the waterproof member contacts the foundation so that no gap occurs between the heat insulation member and the foundation. Construction method of heat insulation and waterproof structure.

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