JP2000303576A - Moisture condensation proof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide moisture condensation proof structure capable of preventing dew condensation at the lower face of a plate in the case of low outside air temperature so as to reduce dew drops falling into a space in an exterior wall. SOLUTION: In this moisture condensation proof structure, a building panel 4 formed by disposing heat insulating material 7 at the indoor side back face of a face member 5, to constitute an exterior wall A is jointed to the lower part of a beam member 1 with wood plates 3, 3 provided on the respective surfaces of flanges 2b, 2b formed at both ends of a web 2a of steel member 2 of H-shaped cross section. The indoor side of the building panel 4 forming the internal space of the exterior wall A below the plate 3 is provided with a moisture condensation proof part 9 adjacently to the plate 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-dew structure for buildings.

[0002]

2. Description of the Related Art Conventionally, in a wooden building by panel fitting, a base fixed on a foundation and a plurality of pillar members, which are frame members, which are erected at predetermined intervals in a horizontal direction on the base. A heat insulating member is integrated with the interior surface side of the structural surface material in a square space formed by the adjacent column material and a horizontal material such as a girder or a girder bridged over the upper end of this column material. The exterior wall is constructed by fitting the converted architectural panels.

[0003] In the above-mentioned wooden building, as a transverse member which greatly affects the strength, stability and durability of the structure,
As shown in FIG. 10, it is possible to use a beam member 1 made of a composite material in which wooden boards 3 are provided on respective surfaces of flanges 2 b and 2 b formed at both ends of a web 2 a of an H-shaped steel frame 2. Proposed. Further, as the above-mentioned building panel, a frame material 6 is provided around the back surface of the face material 5, and a heat insulating material 7 of a foamed synthetic resin such as urethane foam resin is provided as a heat insulating member inside the frame material 6. In order to form a heat insulating portion and further improve the airtightness and heat insulation of a house or the like, the outer peripheral surface of the frame member 6 comes into contact with a beam member 1 or a column member, which is a frame member of a building. An airtight and heat insulating building panel 4 having an airtight portion 8 such as a gasket formed of a loop-shaped packing made of a material in cross section has also been proposed.

In this architectural panel, the heat insulating portion is substantially fitted into the rectangular space, and the protruding portion of the face member 5 protruding outward from the heat insulating portion is formed by the shaft assembly of the column member and the horizontal member. An external wall material is provided on the outside of the face material 5 of the building panel 4 to form an outer wall A of a wooden building. That is, since the heat insulating portion is located substantially at the center between the column members of the building panel 4, the airtight portion 8 is elastically closely contacted with the frame member located on the outer peripheral surface of the heat insulating portion. At a very low cost, it is possible to make the wooden building heat-insulating and air-tight at the same time.

[0005]

However, in the prior art, when the above-mentioned building is installed in a cold region, the steel frame is cooled by the outside air, and the plate below the flange of the steel frame is also cooled. You. For this reason, when the outside air temperature is low, dew condensation occurs on the lower surface of the plate material, and the dew condensation water may drop into the space inside the outer wall. Therefore, moisture may accumulate inside the outer wall and shorten the life of the building.

The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent the occurrence of dew condensation on the lower surface of a plate material when the outside air temperature is low, so that the space inside the outer wall can be prevented. It is an object of the present invention to provide a dew-proof structure capable of reducing the condensation water dripping.

[0007]

In order to achieve the above object, in the dew-proof structure of the present invention, a wooden board is provided on each surface of a flange formed at both ends of a web of a steel frame having an H-shaped cross section. A dew-proof structure of a joint for joining a building panel constituting an outer wall, wherein a heat insulating portion is arranged below a beam member provided on a rear side which is an indoor side of the face material. A dew-proof part is provided below and adjacent to the plate material on the indoor side of the architectural panel that is the inner space of the outer wall.

In this case, the inside of the building panel, which is the inner space of the outer wall, below the plate below the web of the steel frame material having the H-shaped cross section, is condensed by the dew-proof portion provided adjacent to the plate. Is prevented.

The above-mentioned dew-proof portion is provided with a long receiving member disposed over the column members on both sides of the building panel joined below the plate member of the beam member, and between the receiving member and the plate member. It is preferable to form a foamed resin heat insulating material to be filled in.

[0010] In this case, a long receiving member is disposed over the column members on both sides of the building panel to be joined below the plate member of the beam member, and a foamed resin insulation is provided between the receiving member and the plate member. The material is filled to form a dew prevention part for preventing dew condensation.

[0011] Further, the dew-proof part is a long wooden timber that is disposed over the column members on both sides of the building panel joined below the plate member of the beam member, and the same timber is in the longitudinal direction. It is also preferable that the sheet is fixed to the plate via an airtight sheet attached to one side.

[0012] In this case, a long woody material is attached to the column members on both sides of the building panel, which is joined below the plate material of the beam member, and has an airtight sheet attached to one side in the longitudinal direction thereof. The square member is fixed to the plate member via the airtight sheet to form a dew-proof portion for preventing dew condensation.

[0013] The above-mentioned dew-proof part is formed of a low-moisture-permeable, long, soft material which is fixed over the indoor side surface of the plate member of the beam member and the upper part of the heat insulating portion of the building panel provided below the beam member. It is also preferable that the flexible sheet material is formed of a sheet material and disposed so as to form a space between the flexible sheet material and a plate material thereabove.

[0014] In this case, the long soft sheet material having low moisture permeability extends over the indoor side surface of the plate member of the beam member and the upper part of the heat insulating portion of the building panel disposed below the beam member. Are fixed so as to form a space between them, and a dew preventing portion for preventing dew condensation is formed.

Further, the dew-proof portion is a long heat-insulating plate member having a low moisture permeability and having a substantially U-shape in a side view, having convex portions projecting to one side at both ends thereof. It is also preferable to insert and dispose in a gap formed between the pillar material on both sides of the building panel and the heat insulating portion of the building panel, which are joined below the plate material of the beam member.

In this case, a long heat-insulating plate member having a low moisture permeability and having a substantially U-shape in a side view and having convex portions protruding to one side at both ends thereof is disposed below the plate member of the beam member. Is inserted in the gap formed between the pillar material on both sides of the building panel and the heat insulating portion of the building panel, and is arranged to form a dew-proof portion for preventing dew condensation.

[0017]

1 to 3 show a first embodiment corresponding to claims 1 and 2 of the present invention.
Shows a second embodiment corresponding to claim 3 of the present invention, FIGS. 6 and 7 show a third embodiment corresponding to claim 4 of the present invention, and FIGS. A fourth embodiment corresponding to claim 5 of the present invention is shown.

[First Embodiment] FIG. 1 is a partial sectional view of an outer wall showing a schematic structure of a dew-proof structure according to a first embodiment. FIG. 2 is a sectional view showing a main part of the dew-proof structure.
FIG. 3 is a plan view of the outer wall of the schematic structure of the dew-proof structure as viewed from the indoor side.

The anti-dew structure of this embodiment comprises a flange 2b formed at both ends of a web 2a of a steel frame 2 having an H-shaped cross section.
2b, an architectural structure constituting an outer wall A, in which a heat insulating material 7 is arranged below a beam member 1 provided with a woody plate member 3 on each surface thereof and provided on the rear side of the facing member 5 on the indoor side. A dew-proofing structure for a joint that joins the panels 4, wherein a dew-proofing part 9 is provided adjacent to the plate 3 on the room side of the building panel 4, which is an internal space of the outer wall A, below the plate 3. It becomes.

Also, in the dew-proof structure of the embodiment,
The anti-dew portion 9 is provided with a long receiving member 92 disposed over the column members 10 on both sides of the building panel 4 joined below the plate member 3 of the beam member 1, and the receiving member 92 and the plate member 3. There is also a foamed resin insulation material 91 to be filled in between.

More specifically, this dew-proof structure is used at the joint between the beam member 1 and the building panel 4 used in the wooden frame structure, and is similar to that described in the section of the prior art. The beam member 1 made of a material is used. And the point which provided the dew-proof part 9 in the joint part of the beam member 1 and the building panel 4 with what was shown in the section of the prior art is different, and the other structure is the thing of the prior art example shown in FIG. Is the same as

The steel frame 2 is made of, for example, a web 2a having a thickness of approximately 3 mm and a height of approximately 200 mm, and a web 2a having a thickness of approximately 5 mm.
Is an H-section steel having an H-shaped cross section and having flanges 2b and 2b having a width of about 100 mm. The web 2a is provided with through holes for extension when used as a beam material at predetermined positions at both ends and in the middle in the longitudinal direction. The flange 2b is
Through holes (not shown) for bolt insertion for fixing the plate member 3 with predetermined bolts are provided at predetermined intervals,
As shown in FIG. 3, through holes for inserting bolts (not shown) for joining to the column member 10 described later are provided at predetermined module dimensional intervals to which the column member 10 is joined, for example, on the web 2.
Two are provided at positions shifted from each other in the longitudinal direction of the steel frame material 2 with respect to a.

The plate member 3 is, for example, a wooden plate having a thickness of approximately 50 mm and a width of approximately 100 mm, an inner diameter slightly larger than the outer shape of a nut for fixing the bolt to the steel frame material 2 and having substantially the same thickness as the nut. A predetermined bolt penetration hole (not shown) having a step of a depth is provided at a plurality of predetermined positions, and at predetermined intervals in the longitudinal direction, a longitudinal direction corresponding to the through hole of the steel frame material 2 is provided. Two are provided at positions shifted in the direction. Therefore, the plate member 3 is fixed to the steel frame member 2 by using a bolt 4 of a predetermined length whose bolt screw portion does not protrude at the fixing position, and is joined to the column member 10 to have a wooden frame structure. The beam member 1 which is a horizontal member is formed.

The architectural panel 4 is an airtight / insulating architectural panel having an airtight portion 8 for further improving the airtightness / insulation of a house or the like as described in the section of the prior art. is there. A frame material 6 is provided around the back surface of the face material 5, a heat insulating material 7 of a foamed synthetic resin is provided as a heat insulating member inside the frame material 6, and a building material is provided on the outer peripheral surface of the frame material 6. An airtight portion 8 is provided which comes into contact with the beam member 1 and the column member 10 which are frame members.

The surface material 5 is a surface material for a load-bearing wall having a predetermined thickness and strength as a structural wall material. In this material, for example, a softwood plywood having a predetermined width and length is used. Is formed.

The frame member 6 is a square member made of wood for forming a heat insulating portion on the back side of the surface material 5. In this case, the outer edge of the surface material 5 projects outward from the heat insulating portion on the back surface of the surface material 5. For example, a rectangular space having a predetermined size is formed inside the material 5 in a square shape. The frame member 6 may be of various shapes other than the rectangular shape, such as an upper frame and a lower frame alone, or a medium frame added.

In this case, the heat insulating material 7 is a substantially plate-like molded body made of a urethane foam resin material. The heat insulating material 7 is injected into the inside of the frame material 6 so as to form a layer and foamed, and is formed in a plate shape to constitute a heat insulating portion. Then, in this case, the urethane resin material is integrated with the face material 5 by self-adhesion when it is solidified. In addition to the above, the heat insulating material 7 is formed by disposing a fibrous heat insulating material such as rock wool at an inner position of the frame material 6, and then, above the fibrous heat insulating material, the urethane for forming the heat insulating material. A resin material may be poured over the fibrous heat insulating material and foamed to form a multilayer.

Further, in this case, for example, EPD is provided on the outer peripheral surfaces on three sides of both sides of the frame member 6 and the upper side of the upper frame.
A gasket that is a loop-shaped packing made of a foamed rubber material made of a soft material such as ethylene-propylene-terpolymer material called M. A gas-tight tape made of a urethane resin material is fixed to the lower surface of the lower frame. An airtight portion 8 is formed around the periphery 6.

In this case, the dew-proofing section 9 is provided between the plate material 3 serving as an internal space of the outer wall A and the elongated receiving material 92 made of a wooden square material. Is formed. This filling procedure is
As shown in FIGS. 2 and 3, first, the receiving member 92 is fixed to the frame member 6 or the column member 10 of the building panel 4 at a position below the plate member 3 by a predetermined distance, and a fixture such as a wood screw or a nail is obliquely inserted. After hitting and fixing, the foamed resin heat insulating material 91 is blown into the gap between the receiving material 92 and the plate material 3, and after a predetermined time, when the foamed resin heat insulating material 91 is cured, a cutter or the like is used,
The protruding portion of the foamed resin heat insulating material 91 from the end face of the plate 3 is cut off. Note that this cutting is an operation to be performed so as not to disturb the prior-attached sheet installed for air-tightening the ceiling portion.

In the above dew-proof structure, the interior side of the building panel 4 which is the inner space of the outer wall A below the plate 3 below the web of the steel frame material 2 having the H-shaped cross section is adjacent to the plate 3. Dew condensation is prevented by the provided dew prevention unit 9. That is, the moisture inside the outer wall A is prevented from reaching the plate member 3 by the dew-proof portion 9, and the heat insulating property of the periphery of the plate member 3 is improved by the foamed resin heat insulating material 91 of the dew-proof portion 9. Dew condensation at the lower part of the plate member 3 is prevented. At this time,
A long receiving member 92 is disposed over the pillar members 10 and 10 on both sides of the building panel 4 to be joined below the plate member 3 of the beam member 1, and is provided between the receiving member 92 and the plate member 3. The foamed resin heat insulating material 91 is filled and the dew prevention part 9 for preventing dew condensation is formed in close contact with the lower part of the plate member 3 so that the lower part of the plate member 3 does not become lower than the dew point temperature in the outer wall. Therefore, dew condensation can be reliably prevented.

Therefore, according to the above-described dew-proof structure, the interior side of the building panel 4 which is the inner space of the outer wall A below the plate 3 below the web 2a of the H-shaped section 2 is Is prevented by the dew-prevention part 9 provided adjacent to the outer wall A, so that it is possible to prevent the dew condensation on the lower surface of the plate member 3 when the outside air temperature is low, and the dew condensation on the space in the outer wall A is prevented. The bottom can be less.

Then, the elongated receiving member 92 is connected to the beam member 1.
Pillars 1 on both sides of the building panel 4 to be joined below the plate material 3
0 and 10 are arranged between the receiving member 92 and the plate member 3 so that the foamed resin heat insulating material 91 is filled to form a dew preventing portion 9 for preventing dew condensation. 3 Closely formed at the lower part, so that dew condensation can be reliably prevented.

[Second Embodiment] FIG. 4 is a sectional view showing a main part of a dew-proof structure according to a second embodiment. FIG.
It is a perspective view which shows the square material of the same dew-proof structure.

The dew-proof structure of this embodiment is different from the first embodiment only in the structure of the dew-proof part, and the other components are the same as those of the first embodiment. In the dew-proofing structure of the embodiment, the dew-proofing part 9 is a long wooden timber 93 that is disposed over the pillars 10 on both sides of the building panel 4 joined below the plate 3 of the beam member 1. , Same square 93
Is fixed to the plate 3 via an airtight sheet 94 attached to one side surface in the longitudinal direction.

More specifically, the anti-dew section 9 is optimal for use in an environment that deviates from the use environment of the urethane foam resin material described above, and has a cross section of 30 mm.
A square wooden member 93 having a length of 800 mm, which is slightly smaller than 805 mm which is a square having a size of × 50 mm and which is, for example, between the column members 10, 10, has an airtight sheet 94 on one side in the longitudinal direction of the rectangular member 93. A double-sided tape made of a butyl rubber material is adhered to the airtight tape made of EPDM described above. In this case, as shown in FIG. 4, the airtight sheet 94 is also adhered to one side and both ends of the wood, so that moisture reaches the plate 3 from the gap between the square member 93 and the pillar 10. I try to prevent that.

In the above dew-proof structure, the square members 93
Below the plate material 3 below the web of the steel member 2 having the H-shaped cross section, on the indoor side of the building panel 4 serving as the internal space of the outer wall A,
Wood screws are fixed to the plate 3 and disposed. for that reason,
The lower surface of the bar 93 is insulated by the airtight sheet 94 and the main body of the bar 93, and the lower part of the bar 93 does not become lower than the dew point temperature in the outer wall.

Therefore, according to the above-described dew-proof structure, one longitudinal side of the beam member 1 is disposed between the pillars 10 and 10 on both sides of the building panel 4 to be joined below the plate 3. A long wooden square member 93 having an airtight sheet 94 adhered thereto is fixed to the plate member 3 via the airtight sheet 94 to form a dew prevention part 9 for preventing dew condensation. Are formed in close contact with the lower portion of the plate member 3 to reliably prevent dew condensation.

[Third Embodiment] FIG. 6 is a sectional view showing a main part of a dew-proof structure according to a third embodiment. FIG.
It is sectional drawing which shows the soft sheet material of the same dew-proof structure.

The dew-proof structure of this embodiment differs from the first embodiment only in the structure of the dew-proof part, and the other components are the same as those of the first embodiment. In the dew-proof structure of the embodiment, the dew-proof part 9 is formed by connecting the interior side surface of the plate member 3 of the beam member 1 and the building panel 4 disposed below the beam member 1.
Is formed of a low-moisture-permeable and long soft sheet material 95 fixed over the upper part of the heat insulating portion, and the soft sheet material 95 is disposed so as to form a space 96 between the soft sheet material 95 and a plate material thereabove. .

More specifically, as shown in FIG. 7, the anti-dew section 9 is formed of a long soft sheet material 95 having a low moisture permeability such as a soft vinyl chloride resin sheet. A double-sided tape made of a butyl rubber material is adhered to the airtight sheet 94, which is the aforementioned airtight tape made of EPDM, on both sides in the longitudinal direction of one surface, and the soft sheet material 95 is arranged as shown in FIG. Furthermore, it is attached to the side surface of the plate member 3 and the side surface of the frame member 6 of the building panel 4 so as to form a space 96 between the plate member 3 above the building panel 4.

In the above-described dew-proof structure, the soft sheet material 95 is provided on the indoor side of the building panel 4 which is the inner space of the outer wall A below the plate 3 below the web of the steel frame material 2 having the H-shaped cross section. A space 96 is formed on the side surface of the plate member 3 and the side surface of the frame member 6 of the building panel 4 which is the upper part of the heat insulating part, and the space 96 is formed. Therefore, on the lower surface of the plate member 3, the joint between the frame member 6 and the soft sheet member 95 is shielded by the airtight sheet 94, the moisture is shut off, and the heat is insulated in the space 96, and the temperature is lower than the dew point temperature in the outer wall. Never be.

Therefore, according to the dew-proof structure described above, the long soft sheet material 95 having a low moisture permeability and a long length can be used.
Over the indoor side surface of the plate member 3 and the upper part of the heat insulating portion of the building panel 4 arranged below the beam member 1 so as to form a space 96 with the upper plate member 3 to prevent condensation. Since the dew portion 9 is formed, the dew prevention portion 9 is formed in close contact with the lower portion of the plate member 3, so that dew condensation can be reliably prevented.

[Fourth Embodiment] FIGS. 8A and 8B schematically show a dew-proof structure according to a fourth embodiment. FIG. 8A is a plan view of an outer wall viewed from the indoor side, and FIG. It is sectional drawing seen from the top. FIG. 9 is a perspective view showing a heat insulating plate member having the dew-proof structure.

The dew-proof structure of this embodiment differs from the first embodiment only in the structure of the dew-proof part, and the other components are the same as those of the first embodiment. The dew-proofing structure of the embodiment is formed by forming the dew-proofing part 9 into a long, low-moisture-permeable, heat-insulating plate member having a substantially U-shape in a side view having convex parts 98, 98 protruding to one side at both ends thereof. 97, and the projection 98 is
Are inserted into gaps formed between the column members 10 on both sides of the building panel 4 joined to the lower portion of the plate material 3 and the heat insulating portion of the building panel 4.

More specifically, as shown in FIG. 8 (a), the anti-dew section 9 is made of a long heat insulating plate member 97 having low moisture permeability and a width of about 30 mm, such as a polystyrene foam material. The protrusions 9 made of a soft polystyrene foam material are provided at both ends of the heat insulating plate member 97 so as to protrude toward one surface of the plate.
8 and 98, are formed so as to be inserted and held in the gap between the column member 10 and the frame member 6 of the heat insulating portion on the back of the building panel 4, as shown in FIG. 8B.

In the above dew-proof structure, the heat insulating plate member 9
7 is a column member 10 and a frame member 6 on both sides of the building panel 4 whose projections 98, 98 are joined below the plate member 3 of the beam member 1.
After being inserted and arranged in the gaps formed between them, they are nailed and fixed to the plate material 3. Therefore, the heat-insulating plate member 97 having low moisture permeability serves as a heat insulating material that blocks the cold bridge formed by the plate material 3, and prevents the humidified air in the outer wall A from reaching the plate material 3, thereby suppressing the occurrence of dew condensation. In this case, since the convex portions 98, 98 are formed of a soft polystyrene foam material, the convex portions 98, 98 can be easily inserted by following the change in the size of the gap between the column member 10 and the frame member 6, and the heat insulation can be achieved. Since the plate member 97 is formed of a low moisture permeable material, the airtightness can be improved together with the airtight portion 8 below the plate member 3 of the beam member 1.

Therefore, according to the dew-proof structure described above, a heat-insulating plate member having a long shape with low moisture permeability and a substantially U-shape in a side view having convex portions 98, 98 protruding to one side at both ends thereof. 9
7 are inserted into the gaps formed between the column members 10 on both sides of the building panel 4 joined to the lower part of the plate member 3 of the beam member 1 and the heat insulating portion of the building panel 4 and arranged. Since the anti-condensation portion 9 is provided to prevent dew condensation, the anti-condensation portion 9 is formed in close contact with the lower portion of the plate member 3 to reliably prevent dew condensation.

[0048]

The dew-proof structure of the present invention is embodied as in the above-described embodiment. The interior side of the building panel, which is the inner space of the outer wall, under the plate below the web of the H-shaped steel frame, is used. Since dew condensation is prevented by the dew-prevention section provided adjacent to the plate material, it is possible to prevent dew condensation on the lower surface of the plate material when the outside air temperature is low, and to prevent dew condensation on the space inside the outer wall. The bottom can be less.

A long receiving member is disposed between the column members on both sides of the building panel joined below the plate member of the beam member, and a foamed resin heat insulating material is provided between the receiving member and the plate member. Is filled to form a dew prevention part for preventing dew condensation.
The dew prevention part is formed in close contact with the lower part of the plate member, so that dew condensation can be reliably prevented.

Further, a long wooden timber, which is provided below the beam of the beam member, is disposed over the pillars on both sides of the building panel, and has an airtight sheet adhered to one longitudinal side thereof. However, since the dew-prevention part is fixed to the plate material via the airtight sheet to form a dew-prevention part for preventing dew condensation, the dew-prevention part is formed in close contact with the lower part of the plate material, so that dew condensation can be reliably prevented.

Further, the long soft sheet material having low moisture permeability is provided between the upper side plate material and the upper side of the heat insulating portion of the building panel disposed below the beam member and the building panel disposed below the beam member. Since a dew-preventing portion for preventing dew condensation is formed so as to form a space therebetween, the dew-preventing portion is formed in close contact with the lower portion of the plate member, so that dew condensation can be reliably prevented.

A long heat-insulating plate member having a low moisture permeability and having a substantially U-shape in a side view and having convex portions projecting to one side at both ends thereof is provided below the plate material of the beam member. Since the dew prevention part for preventing dew condensation is formed by being inserted and disposed in the gap formed between the pillar material on both sides of the building panel and the heat insulating part of the building panel to be joined, the dew prevention part is Since it is formed in close contact with the lower part of the plate, dew condensation can be reliably prevented.

[0053]

[Brief description of the drawings]

FIG. 1 is a partial sectional view of an outer wall showing a schematic structure of a dew-proof structure according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a main part of the dew-proof structure.

FIG. 3 is a plan view of an outer wall of the schematic structure of the dew-proof structure as viewed from the indoor side.

FIG. 4 is a cross-sectional view illustrating a main part of a dew-proof structure according to a second embodiment.

FIG. 5 is a perspective view showing a square member having the dew-proof structure.

FIG. 6 is a cross-sectional view illustrating a main part of a dew-proof structure according to a third embodiment.

FIG. 7 is a sectional view showing a main part of a dew-proof structure according to a third embodiment.

FIG. 8 schematically shows a dew-proof structure according to a fourth embodiment,
(A) is a plan view of the outer wall viewed from the indoor side, and (b) is a cross-sectional view of the outer wall viewed from above.

FIG. 9 is a perspective view showing a heat insulating plate member having the same dew-proof structure.

FIG. 10 is a partial sectional view of an outer wall showing a schematic structure of a dew-proof structure as a conventional example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Beam member 2 Steel frame material 2a Web 2b Flange 3 Plate material 4 Building panel 5 Face material 6 Frame material 7 Heat insulating material 9 Dew-proof part 92 Receiving material 91 Foamed resin heat insulating material 10 Column material

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DB04 DB05 DC02 DD01 EA09 FA04 FA14 GA07 GA24 GA42 GA45 GA52 GA63 GA76 GA82 HA32 HB02 HC01 HC02 HD03 HD09 HD13 HE01 KA03 LA01 LA11 LA12 LA16 MA02 2E002 FB07 FB16 HA02 HB01 JB01

Claims (5)

[Claims] 1. A heat insulating part is provided below a beam member having a wooden plate material provided on each surface of a flange formed at both ends of a web of a steel frame material having an H-shaped cross section and on a rear surface on the indoor side of the surface material. A dew-proof structure of a joining part for joining building panels constituting an outer wall, wherein the building panel is an interior space of the outer wall below the plate material and adjacent to the plate material. Dew-proof structure with a dew-proof part. 2. An elongate receiving member disposed between column members on both sides of the building panel joined below a plate member of a beam member, and between the receiving member and the plate member. 2. The dew-proof structure according to claim 1, which is used as a foamed resin heat insulating material to be filled. 3. The anti-dew part is a long wooden timber that is disposed over the column members on both sides of the building panel joined below the plate of the beam member, and the same timber is in the longitudinal direction. 2. The dew-proof structure according to claim 1, wherein the dew-proof structure is fixed to a plate material via an airtight sheet attached to a side surface. 4. The dew proof part is provided on a side surface of the beam member in the indoor side,
And formed of a low-moisture-permeable, long soft sheet material fixed over the upper part of the heat insulating portion of the building panel disposed below the beam member, and the soft sheet material is interposed between the soft sheet material and the upper plate material. 2. The dew-proof structure according to claim 1, wherein the structure is arranged to form a space. 5. The dew-proof part is a long, low-moisture-permeable, heat-insulating plate member having a substantially U-shape in a side view having convex parts projecting to one side at both ends thereof, and the convex part is a beam. 2. The prevention device according to claim 1, wherein the member is inserted into a gap formed between a pillar material on both sides of the building panel and a heat insulating portion of the building panel, which are joined below the plate material of the member. Dew structure.