JPH0647842B2 - Outer wall structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an outer wall structure in which a ventilation layer is provided inside a wall body of an outer wall to ventilate the inside of the wall body to release moisture inside the wall body to an outdoor side. Is.

[Background Art] In cold regions, there is a problem that dew condensation is likely to occur inside the outer wall body, so a wall body that is filled with a heat insulating material and has a ventilation layer that runs in the vertical direction is being studied. In addition to being able to insulate with the internal heat insulating material, this one vents the air inside the ventilation layer to release the internal moisture to the outside, preventing condensation inside. is there. However, it is difficult to load the heat insulating material in the lattice beam portion, and the ventilation layer of the lower floor wall and the ventilation layer of the upper floor wall cannot be communicated with each other.

[Object of the Invention] The present invention has been made in view of the above points, and the beam portion can be heat-insulated, and the ventilation portion of the lower floor wall body and the upper floor wall body can be ventilated in the beam portion. It is an object of the present invention to provide an outer wall structure capable of communicating with a layer.

DISCLOSURE OF THE INVENTION That is, the outer wall structure of the present invention includes a lower floor and an upper floor wall body 1.
A heat insulating material 2 for a curtain plate in which a ventilation layer 7 running in the vertical direction is formed inside 2 and 12, and a vertically long groove 25 is provided on the outdoor side.
6 is attached to the outdoor side of the beam 27 arranged between the upper and lower walls, and the exterior material 6 is attached to the outdoor surface of this curtain board heat insulating material 26 so that the exterior material 6 and the recessed groove 25 are connected to each other. A ventilation board 28 is formed, and the ventilation layer 7 of the lower floor wall 12 and the ventilation layer 7 of the upper floor wall 12 are connected to each other through the ventilation path 28. The heat insulating material 26 can be used to insulate the beam 27, and the ventilation paths 28 connect the ventilation layers 7, 7 of the upper and lower wall bodies 12, 12 to achieve the above object.

Hereinafter, the present invention will be described in detail based on examples. First, the structure of the lower and upper floors 12 will be described. As shown in FIGS. 4 and 5, the wall 12 is placed on the outdoor side of the outer wall panel 13 via the outdoor waterproof sheet 5 and the exterior member 6. Is formed by pasting. This outer wall panel 13 is a frame member 8
The interior base material 2 is attached to the inside of the heat insulating layer 1 formed by filling the heat insulating material 9 such as expanded polystyrene inside with a moisture-proof sheet 10 such as a high-density polyethylene sheet, and the outside of the heat insulating layer 1 Is formed by attaching a plurality of exterior base rails 4 and 4 via an indoor side waterproof sheet 3 formed of an ultrafine fiber sheet of high density polyethylene. The exterior base rail 4 is fixed to each of the reinforcing members 11 of the frame member 8 by nailing or the like, and is formed to be long in the vertical direction. The exterior base rail 4 of the outer wall panel 13 thus formed
The exterior member 6 is attached to the outdoor side of the above through an outdoor side waterproof sheet 5 made of asphalt felt or the like to form a wall body 12. As shown in FIG. 5, a ventilation layer 7 which is long in the vertical direction is formed inside the wall body 12 between the indoor side waterproof sheet 3, the outdoor side waterproof sheet 5 and the adjacent exterior base rails 4, 4. Therefore, the upper and lower ends of the ventilation layer 7 are open to the outside, respectively, so that ventilation is possible.

Thus, the outer wall panel 13 formed as described above
Is attached to the outer walls of the lower floor and the upper floor, and in the lattice beam 27 portion of the building, the curtain board heat insulating material 26 is attached to the outdoor surface of the lattice beam 27 as shown in FIGS. 1 and 2. The curtain plate heat insulating material 26 is made of expanded polystyrene or the like, and a plurality of vertically long concave grooves 25 are provided on the outdoor surface thereof. The vertical member 2 is placed in the groove 25.
The curtain plate heat insulating material 26 can be attached to the outdoor side of the lattice beam 27 by inserting 9 and fixing the upper and lower ends of the vertical member 29 to the outer wall panel 12 by nailing. Then, the outer wall panel 13
The exterior material 6 is attached to the outdoor side of the curtain board heat insulating material 26 by nailing or the like. The width dimension of the vertical member 29 is set to be slightly smaller than the width dimension of the concave groove 25.
A ventilation path 28 is formed between the inner surface of the outer cover 6 and the rear surface of the exterior member 6. Therefore, the lower and upper walls 12, 1
The ventilation layer 7 formed in 2 is vertically communicated with each other through the ventilation passage 28 in the lattice beam 27, so that the air is circulated in the ventilation layer 7 and the ventilation passage 28 and the moisture in the inside is discharged to the outside. It can be released. Also, the lattice beam 27
The heat insulating material 30 to which the moisture-proof sheet 10 is attached is also attached to the indoor side of, and the heat insulating material 30 and the curtain board heat insulating material 26 can effectively perform heat insulation. The waterproof sheet 5 on the outdoor side is formed of waterproof paper having a waterproof effect such as asphalt felt, and can prevent water from entering the inside from the outdoor side. In addition,
A floor panel 31 on the upper floor and a ceiling base panel 32 on the lower floor are attached to the lattice beam 27.

[Advantages of the Invention] As described above, the present invention forms a ventilation layer that runs vertically in the upper and lower floors, and through the ventilation path formed in the beam portion, Since it communicates with the ventilation layer of the floor upper wall, it is possible to remove the moisture in the wall and the beam part by the air flowing in this ventilation layer, and also with the curtain board heat insulating material attached to the outdoor side of the beam. The beam portion can be insulated so that dew condensation can be prevented from occurring inside the wall and inside the beam even in cold regions.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an embodiment of the present invention, FIG. 2 is an exploded perspective view of an essential part of the same, FIG. 3 is an explanatory view of the same as above, and FIG. FIG. 5 and FIG. 5 are sectional views of the same. Reference numeral 7 is a ventilation layer, 12 is a wall body, 13 is an outer wall panel, 25 is a groove, 26 is a curtain plate heat insulating material, 27 is a beam, and 28 is a ventilation path.

Claims (2)

[Claims] 1. A curtain board heat insulating material having vertical ventilation grooves formed inside the lower and upper floors, and having a vertical long groove on the outdoor side is provided between the upper and lower floors. Is installed on the outdoor side of the beam disposed on the outer surface of the curtain plate, and an exterior material is attached to the outdoor surface of the heat insulating material of the curtain plate to form a ventilation path between the exterior material and the concave groove. An outer wall structure characterized in that the ventilation layer of the body and the ventilation layer of the upper floor wall are connected to each other. 2. A wall body is formed by attaching an exterior material to an outdoor side of an outer wall panel to which a plurality of exterior material base rails that are long in the vertical direction are attached on the outdoor side. The outer wall structure according to claim 1, wherein a ventilation layer is formed between the outer wall structure and the exterior material.