JP6339774B2 - Moisture-proof structure of building - Google Patents

Description

  The present invention relates to a moisture-proof structure for a building having a structure in which a heat insulating material is provided outside a column beam which is a structural frame of the building.

  FIG. 4 shows a moisture-proof structure of the building 201 in which no heat insulating material is provided outside the column beam that is the structural frame of the building. The building 201 has a roof portion 201A, a trunk difference portion 201B, and a base portion 201C, and the outer wall panel 204 is attached to a beam member 203, which is a structural frame, with a part on the back side positioned.

  In the roof portion 201A, as shown in FIG. 5A, a moisture-proof surface is formed by a moisture-proof sheet 204a provided on the back surface heat insulating material of the outer wall panel 204 (see thick dotted line). Further, a moisture-proof surface is formed by a moisture-proof sheet 206a provided on the ceiling 206 (see thick dotted line). The moisture-proof sheet 204a and the moisture-proof sheet 206a are provided so as to overlap at an upper portion of the wall surface.

  Moreover, in the said trunk | drum difference part 201B, as shown in FIG.5 (B), a moisture proof surface is formed with the web of the beam material 3 (refer thick dotted line). Further, a moisture-proof surface is formed on the upper and lower sides of the beam member 3 by a moisture-proof sheet 204a provided on the back surface heat insulating material of the outer wall panel 204 (see thick dotted lines).

  Note that Patent Document 1 discloses a structure in which an ear portion around a heat insulating mat is fixed to a shaft member such as a column by a moisture-proof sheet pressing edge to form a static air layer.

JP 2008-127854 A

  However, in a case where the moisture-proof structure of the building 201 is to be used for a building with an external thermal insulation method or an external thermal insulation method, an attempt is made to form a moisture-proof surface with the moisture-proof sheet 204a provided on the back surface heat insulating material of the outer wall panel 204. Then, especially in the location of a pillar, it is necessary to arrange | position large moisture-proof sheet | seat so that the said pillar may be wound up from the edge of the said moisture-proof sheet 204a, and workability | operativity falls. Even if the technique of the above-mentioned patent document 1 is used, it is not possible to appropriately cope with a building by external thermal insulation.

  In view of the above circumstances, an object of the present invention is to provide a moisture-proof structure for a building capable of performing moisture-proof construction with excellent workability in a building in which a heat insulating material is provided outside a column beam that is a structural frame of the building. And

  In order to solve the above-described problem, the moisture-proof structure of a building according to the present invention has a structure in which a heat insulating material is provided on the outside of a column beam that is a structural frame of a building, and a flexible material provided on the upper side of the beam material. And a moisture-proof surface on the beam standing above the beam material formed by the moisture-proof sheet provided on the flexible material, a wall moisture-proof surface formed by a wall-surface moisture-proof sheet provided on the indoor wall, and the indoor wall And a floor moisture-proof surface connecting the moisture-proof surface on the beam and the wall moisture-proof surface between the floor portion on the beam member and the wall.

  If it is said structure, the moisture-proof of a building will be attained, without providing a moisture-proof sheet | seat on the back surface of an outer wall panel. In addition, it is no longer necessary to place a moisture-proof sheet so that the column is greatly involved in a building with a heat insulating material provided outside the column beam, which is the structural frame of the building. Construction can be performed. Furthermore, compared to moisture prevention using a moisture-proof sheet provided on the back surface of the outer wall panel, the moisture resistance by the above-mentioned moisture-proof surface on the beam, the above-mentioned moisture-proof surface of the wall, and the above-mentioned moisture-proof surface of the under-wall is that indoor moisture goes to the above pillars. There is an advantage that becomes difficult.

  The on-beam moisture-proof surface may be located along an edge surface of the floor. Moreover, the said wall lower floor moisture-proof surface may be formed with the steel frame material of the said indoor wall. Or the said wall floor floor moisture-proof surface may be formed of the said moisture-proof sheet | seat.

  Further, the moisture-proof structure of a building according to the present invention has a structure in which a heat insulating material is provided outside a column beam which is a structural frame of the building, and the flexible material provided below the beam material, and the flexible material A moisture-proof surface below the beam material formed by the moisture-proof sheet provided on the wall, a wall moisture-proof surface formed by a wall moisture-proof sheet provided on the indoor wall, and the indoor wall and below the beam material. It has an on-wall ceiling moisture-proof surface that connects the under-beam moisture-proof surface and the wall moisture-proof surface to a ceiling portion.

  If it is said structure, the moisture-proof of a building will be attained, without providing a moisture-proof sheet | seat on the back surface of an outer wall panel. In addition, it is no longer necessary to arrange a moisture-proof sheet so that the column is greatly involved in a building with a heat insulating material provided outside the column beam that is the structural frame of the building, and it is excellent in workability in externally insulated and externally insulated buildings Moisture-proof construction can be performed. Furthermore, compared to moisture prevention using a moisture-proof sheet provided on the back surface of the outer wall panel, the moisture resistance by the under-beam moisture-proof surface, the wall moisture-proof surface, and the above-wall ceiling moisture-proof surface is such that indoor moisture goes to the pillars. There is an advantage that becomes difficult.

  The under-beam moisture-proof surface may be located along an edge surface of the ceiling. Further, the above-mentioned ceiling moisture-proof surface on the wall may be formed of a steel frame material for the indoor wall. Alternatively, the ceiling moistureproof surface on the wall may be formed by the moistureproof sheet.

  If it is this invention, there exists an effect that the moisture-proof construction excellent in workability | operativity can be performed in the building of a structure where a heat insulating material is provided in the outer side of the column beam which is a structural frame of a building.

It is explanatory drawing of the building which showed embodiment of this invention. 1A is an enlarged view of the roof portion of FIG. 1, and FIG. 1B is an enlarged view of the trunk difference portion of FIG. It is the perspective view which showed the structure under the beam material of the trunk | drum difference part of FIG. It is explanatory drawing which showed the building which has the conventional moisture proof structure. 4A is an enlarged view of the roof portion of the building of FIG. 4, and FIG. 4B is an enlarged view of the trunk difference portion of FIG.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
As schematically shown in FIG. 1, the building 1 has a roof portion 1A, a trunk difference portion 1B, and a foundation portion 1C. The building 1 is constructed by a curtain wall construction method, and an outer wall panel 4 with a heat insulating material is attached so as to be located outside a beam material (for example, an H-shaped steel beam) 3 which is a structural frame of the building 1. It has an external thermal insulation (or external thermal insulation) structure. In this embodiment, a moisture-proof sheet is not provided on the back surface of the outer wall panel 4. The moisture-proof sheet is made of, for example, an aluminum pressure-bonded film.

  As shown in an enlarged view in FIG. 2A, a member locking tool 2 is mounted at a location on the indoor side of the lower flange 3a of the beam member 3 provided on the roof portion 1A. A runner material 5 is fixed to the member locking tool 2. A single runner member 5 is provided with a plurality of the above-mentioned member locking tools 2. A ceiling 6 and an indoor wall 7 on the second floor side are fixed to the runner material 5.

  A ceiling moisture-proof surface A is formed by the ceiling moisture-proof sheet 6a provided on the ceiling 6 (see thick dotted line). A wall moisture-proof surface B is formed by a wall moisture-proof sheet 7a provided on the back surface of the indoor wall 7 (see thick dotted line). Further, a heat insulating material 11 is provided between the outer wall panel 4 and the indoor wall 7 at a location outside the center of the lower flange 3 a of the beam member 3.

  As shown in an enlarged view in FIG. 2B, a floor panel frame 8a is provided at an indoor side portion of the upper flange 3a of the beam member 3 in the trunk difference portion 1B, and a floor panel frame 8a is provided on the floor panel frame 8a. 8 is configured. A heat insulating material (flexible material) 12 is provided between the outer wall panel 4 and the indoor wall 7 at a location outside the center of the upper flange 3 a of the beam member 3.

  Further, on the upper side of the flange 3a of the beam member 3 in the trunk difference portion 1B, a moisture-proof surface C on the beam rising above the beam member 3 is formed by a moisture-proof sheet 12a provided on the heat insulating material 12 (thick). (See dotted line). The on-beam moisture-proof surface C is positioned so as to be in contact with the edge surface of the floor 8. Further, a wall moisture-proof surface B is formed by a wall moisture-proof sheet 7 a provided on the indoor wall 7. Between the indoor wall 7 and the floor 8, a wall lower floor moisture barrier surface D that connects the beam moisture barrier surface C and the wall moisture barrier surface B is formed. The wall bottom floor moisture-proof surface D may be formed by a steel frame member 72 of the indoor wall 7. Alternatively, the moisture-proof sheet 12a has a surplus portion (ear portion) that exceeds the vertical dimension of the heat insulating material 12, and the surplus portion is positioned between the indoor wall 7 and the floor 8 so that the under-floor floor moisture-proof The surface D may be formed by the moisture-proof sheet 12a. In addition, the thick dotted line on the web of the said beam material 3 represents the moisture-proof surface by the said web.

  Further, below the flange 3a of the beam member 3 in the trunk difference part 1B, a moisture-proof sheet E provided below the beam member 3 is formed by a moisture-proof sheet 13a provided on the heat insulating material (flexible material) 13. (See the thick dotted line). The under-beam moisture-proof surface E is positioned so as to contact along the edge surface of the ceiling 6. Further, a wall moisture-proof surface B is formed by a wall moisture-proof sheet 7 a provided on the indoor wall 7. An on-wall ceiling moisture-proof surface F that connects the under-beam moisture-proof surface E and the wall moisture-proof surface B is formed between the indoor wall 7 and the ceiling 6. The on-wall ceiling moisture-proof surface F may be formed by the steel frame member 72 of the indoor wall 7. Alternatively, the moisture-proof sheet 13 a has a surplus part (ear part) exceeding the vertical dimension of the heat insulating material 13, and the surplus part is positioned between the indoor wall 7 and the ceiling 6 so that the ceiling-to-wall moisture-proof on the wall. The surface F may be formed by the moisture-proof sheet 13a.

  The member locking tool 2 is attached to an indoor side portion below the flange 3a of the beam member 3 in the trunk difference portion 1B. The runner material 5 is fixed to the member locking tool 2. A ceiling 6 and an indoor wall 7 on the first floor side are fixed to the runner material 5.

  As shown in FIG. 3, the member locking tool 2 includes a locking portion 21 that is locked to the lower flange 3 a of the beam member 3, and a horizontal space that forms a space below the locking portion 21. The member fixing surface portion 22 located in the space and the space forming elevation portion 23 connecting the locking portion 21 and the member fixing surface portion 22 are formed by bending a single metal plate.

  The locking portion 21 includes a pressing portion 21a positioned on the upper side, a receiving portion 21b positioned on the lower side, and a connecting portion 21c that connects them. The height of the connecting portion 21c is high enough to sandwich the thickest flange 3a in a plurality of types of beam members 3 that can be handled.

  Moreover, while the front end side of the said press part 21a is made lower than the height of the said connection part 21c, the most advanced part is bent upwards for the ease of the insertion operation | work of the said flange 3a. The lowest end position bent upward is the pressing portion of the pressing portion 21a. Furthermore, the pressing portion 21a is formed with a tongue-shaped pressing piece 21d that is partially cut and bent, and the pressing portion of the tongue-shaped pressing piece 21d is connected to the pressing portion of the pressing portion 21a and the connecting portion. 21c. Further, the base of the tongue-shaped pressing piece 21d is positioned between the pressing portion of the pressing portion 21a and the pressing portion of the tongue-shaped pressing piece 21d.

  In addition, a member positioning portion 23a is formed at the lower portion of the space forming vertical surface portion 23. The member fixing surface portion 22 is partially cut and bent. Further, on the edge side of the receiving portion 21b, the space forming upright portion 23, and the member fixing surface portion 22, there is formed a reinforcing bent portion 24 that is bent at a right angle and connected in a U-shape. Even though the metal plate is bent, the member locking tool 2 can have a sufficient member supporting force.

  The runner material 5 is disposed on the lower surface of the member fixing surface portion 22 in the member locking tool 2, is driven from the lower surface side of the runner material 5, penetrates the member fixing surface portion 22, and the tip is the member fixing surface portion 22. The runner member 5 is fixed to the member fixing surface portion 22 with a screw 51 protruding into the upper space of the above-mentioned structure. That is, the under-beam mounting member 20 is a member in which a plurality of member locking members 2 are fixed to the runner material 5 at intervals, and is assembled at a factory and transported to the site. At the site, the under beam mounting member 20 is fixed to the flange 3a by pressing the insertion port side of the locking portion 21 against the edge of the flange 3a, and the arrangement state of the runner material 5 Is built at once.

  And the frame part 61 of the ceiling 6 is fixed by the nail | claw 62 etc. to the standing surface of the said runner material 5 indoor side. Two ceiling boards 63 are fixed to the frame portion 61 with nails or the like. In this ceiling structure, a space is formed from the back of the ceiling to the outer surface of the runner material 5 through the gap between the member locking members 2.

  A spacer 71 in the indoor wall 7 is fixed to the lower surface of the runner material 5 with nails or the like, and a steel frame material 72 is fixed to the lower surface of the spacer 71. A stud (not shown) is disposed on the steel frame member 72, and an inner wall board is fixed.

  Further, as described above, the plurality of member locking devices 2 are arranged at intervals, and a space is formed between the runner material 5 and the flange 3a. Through this space, electrical wiring 102 and piping (not shown) are arranged behind the ceiling. The wiring or the like is led from the back of the ceiling between the moisture-proof sheet 13a of the heat insulating material 13 and the runner material 5.

  Further, the excess portion on the upper side of the moisture-proof sheet 13a is positioned on the lower surface side of the flange 3a and temporarily fixed with an adhesive tape. When the member locking tool 2 is attached to the flange 3a in this state, an excess portion on the upper side is sandwiched between the receiving portion 21b of the member locking tool 2 and the lower surface of the flange 3a, and the heat insulating material 13 Is held. It should be noted that the surplus portion on the lower side can be simply hung downward.

  Thus, in the above moisture-proof structure, the building can be moisture-proof without providing a moisture-proof sheet on the back surface of the outer wall panel 4. In addition, it is no longer necessary to place a moisture-proof sheet so that the column is greatly involved in a building with a heat insulating material provided outside the column beam, which is the structural frame of the building. Excellent moisture-proof construction can be performed. Furthermore, compared with moisture prevention using a moisture-proof sheet provided on the back surface of the outer wall panel 4, the wall moisture-proof surface B, the beam-top moisture-proof surface C, the wall bottom floor moisture-proof surface D, the beam under-moisture-proof surface E and the above-mentioned Moisture prevention by the ceiling-to-wall moisture-proof surface F has an advantage that indoor moisture hardly reaches the pillars.

  In addition, it replaces with the said heat insulating materials 12 and 13 which form a moisture-proof surface, and the flexible material which does not have heat insulation can be used. This flexible material includes a material in which a bag is filled with a fiber material, a material in which a bag is not filled with a fiber material, or a flexible sheet such as an air cap. On the other hand, about the said heat insulating material 11, what has heat insulation is used so that the heat insulation defect | deletion in an attic may be prevented. Moreover, by using the same thing as the said heat insulating materials 11, 12, and 13, cost reduction, reduction of arrangement | positioning mistake, etc. can be aimed at.

  Further, in the above embodiment, the on-beam moisture-proof surface C by the moisture-proof sheet 12a is positioned along the edge surface of the floor 8, but is positioned between the back surface of the outer wall panel 4 and the heat insulating material 12. May be. In this case, it is desirable that the moistureproof surface D under the wall extends to the upper surface of the heat insulating material 12. Further, the under-beam moisture-proof surface E by the moisture-proof sheet 13 a is located along the edge surface of the ceiling 6, but may be located between the back surface of the outer wall panel 4 and the heat insulating material 13. In this case, it is preferable that the above-wall ceiling moisture-proof surface F is extended to the lower surface of the heat insulating material 13.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

DESCRIPTION OF SYMBOLS 1 Building 2 Member locking tool 20 Beam attachment member 3 Beam material 3a Flange 4 Outer wall panel 5 Runner material 6 Ceiling 6a Ceiling moisture-proof sheet 7 Indoor wall 7a Wall moisture-proof sheet 8 Floor 11 Heat insulation material 12 Heat insulation material (flexible material)
12a Moisture-proof sheet 13 Heat insulation material (flexible material)
13a Moisture-proof sheet A Ceiling moisture-proof surface B Wall moisture-proof surface C Over-beam moisture-proof surface D Under-wall moisture-proof surface E Under-beam moisture-proof surface F Over-wall ceiling moisture-proof surface

Claims (4)

It has a structure where heat insulating material is provided on the outside of the column beam that is the structural frame of the building,
A flexible material provided on the upper side of the beam material;
A moisture-proof surface on the beam that rises above the beam material formed by a moisture-proof sheet provided on the flexible material;
A wall moisture-proof surface formed by a wall moisture-proof sheet provided on the indoor wall;
A wall bottom floor moisture proof surface connecting the moisture proof surface on the beam and the wall moisture proof surface between the indoor wall and a portion of the floor on the beam material;
The flexible material is provided separately from the wall surface moisture-proof sheet,
A moisture-proof structure for a building, wherein the moisture-proof surface of the lower floor under the wall is formed by a moisture-proof sheet that is an excess part exceeding the vertical dimension of the flexible material provided on the flexible material.   2. The moisture-proof structure for a building according to claim 1, wherein the on-beam moisture-proof surface is located along an edge surface of the floor. It has a structure where heat insulating material is provided on the outside of the column beam that is the structural frame of the building,
A flexible material provided under the beam material;
A moisture-proof surface under the beam that is formed below the beam material formed by a moisture-proof sheet provided on the flexible material;
A wall moisture-proof surface formed by a wall moisture-proof sheet provided on the indoor wall;
An on-wall ceiling moisture-proof surface connecting the under-beam moisture-proof surface and the wall moisture-proof surface between the indoor wall and the ceiling part under the beam material;
The flexible material is provided separately from the wall surface moisture-proof sheet,
A moisture-proof structure for a building, wherein the ceiling moisture-proof surface on the wall is formed by a moisture-proof sheet that is an excess part that exceeds the vertical dimension of the flexible material provided on the flexible material.   4. The building moisture-proof structure according to claim 3, wherein the under-beam moisture-proof surface is located along an edge surface of the ceiling.

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