JPH0742261A - Ventilating device for building - Google Patents

Abstract

PURPOSE:To obtain a ventilating device favorable on the ventilation of a building for the building by smoothly conducting ventilation between each mutual permeable layer on the insides of an external facing material in an upper story and an external facing material in a lower story without interrupting each mutual permeable layer. CONSTITUTION:In a boundary section between the upper story and lower story of a building, a permeable board body 2 capable of performing ventilation from a lower section to an upper section is installed onto the external surface of the floor beam 1 of the upper story, and the lower end section of an external facing material 32 in the upper story is abutted against the external surface of the permeable board body 2. A permeable layer 64 mounted inside an external facing material 62 set up on the external surface of a ceiling beam 5 in the lower story is made to communicate with a permeable layer 34 installed inside the external facing material 32 in the upper story through the permeable board body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation system for a building, and more particularly to a ventilation system at a boundary between an upper floor and a lower floor of a building.

[0002]

2. Description of the Related Art Conventionally, for example, JP-A-63-30484.
As described in Japanese Patent No. 9 and the like, it is known that a ventilation layer is provided in a building wall and ventilation is performed in the building by the ventilation layer.

By the way, at the boundary between the upper floor and the lower floor of the building, as shown in FIG. 4, floor beams (a) of the upper floor.
The exterior material of the upper floor (b) is attached to the outside of the floor, the exterior material of the lower floor is attached to the outside of the ceiling beam (c) of the lower floor, and the exterior material of the upper floor (b) and the floor of the lower floor Vent layers (e) and (f) are provided inside the exterior material (d), respectively.

The upper half of the draining sheet (g) is inserted between the exterior material (b) of the upper floor and the floor beam (a) of the upper floor, and the lower half of the draining sheet (g) is the lower floor. It is attached to the outer surface of the exterior material (d).

Further, one end of the waterproof sheet (h) is inserted between the exterior material (d) on the lower floor and the draining sheet (g),
The other end of the waterproof sheet (h) is sandwiched between the floor beam (a) on the upper floor and the ceiling beam (c) on the lower floor.

[0006]

However, as shown in FIG. 4, ventilation layers (e) and (f) are provided inside the exterior material (b) of the upper floor and the exterior material (d) of the lower floor, respectively. Even if it is installed, the exterior material of the upper floor (b) and the exterior material of the lower floor (d)
The inner ventilation layers (e) and (f) are blocked by the draining sheet (g) and the waterproof sheet (h), which do not allow mutual ventilation, which is not preferable for building ventilation.

The present invention has been made in view of the above problems in the conventional ventilation device for a building, and an object of the present invention is to solve the above problems and to provide an exterior material and a lower layer for an upper floor. An object of the present invention is to provide a building ventilation device which is preferable in terms of building ventilation, because ventilation can be smoothly performed between the ventilation layers without blocking the ventilation layers inside the exterior material of the floor.

[0008]

In order to achieve the above object, a ventilation device for a building according to the present invention has a structure in which, from the bottom to the top of the floor girder of the upper floor at the boundary between the upper floor and the lower floor of the building. A breathable plate that allows ventilation is attached to the outer surface of the breathable plate, and the lower end of the exterior material of the upper floor abuts on the exterior surface of the ceiling beam of the lower floor. The ventilation layer is communicated with the ventilation layer provided inside the exterior material of the upper floor through the ventilation plate.

In the present invention, as the breathable plate member which can be ventilated from the lower side to the upper side, any plate can be used so long as it has a vent hole capable of ventilating from the lower side to the upper side, and is particularly limited However, for example, so-called plastic corrugated cardboard (abbreviated as “Pradan”) made of synthetic resin such as polyethylene, polypropylene, vinyl chloride resin, or foam made of open-cell synthetic resin such as polyethylene, polypropylene or polyurethane is preferable. Can be used.

In the present invention, the attaching means to the floor beam on the upper floor of the air permeable plate may be attaching means such as screwing, nailing, or adhering, or attaching means by concavo-convex fitting. .

[0011]

In the ventilation device for a building of the present invention, a breathable plate member capable of ventilating from the lower side to the upper side is attached to the outer surface of the floor beam of the upper floor at the boundary between the upper floor and the lower floor of the building. The lower end of the exterior material of the upper floor is brought into contact with the outer surface of the plate body, and the ventilation layer provided inside the exterior material provided on the outer surface of the ceiling beam of the lower floor is the exterior material of the upper floor through the breathable plate body. Since it is connected to the ventilation layer provided inside the material, the ventilation layers provided inside the exterior material of the upper floor and the lower floor can smoothly perform ventilation.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. [Embodiment 1] FIG. 1 is a sectional view showing an example of a ventilation device for a building of the present invention.

In FIG. 1, reference numeral 1 is a floor beam on the second floor of a building, and a breathable plate 2 is attached to the outer surface of the floor beam 1 by adhesion. The breathable plate body 2 is made of so-called plastic corrugated board, and as shown in FIG. 2, a plurality of polyethylene partition walls 22, 22, ... Are provided between the two polyethylene plate bodies 21, 21. Are integrally provided, and ventilation holes 23, 23, ... Can be provided between the partition walls 22, 22 ,.

Reference numeral 3 denotes a wall body on the second floor of the building. The wall body 3 is provided with a heat insulating material 33 made of glass wool between the interior material 31 and the exterior material 32, and the heat insulating material 33 and the exterior plate 32. A ventilation layer 34 is provided between them. Exterior material 32 of wall 3
The lower end portion of the drainage sheet 4 is in contact with the outer surface of the breathable plate body 2 via the upper half portion of the draining sheet 4.

5 is a ceiling beam on the first floor of the building.
The upper end of the wall body 6 on the first floor is attached to. A heat insulating material 63 made of glass wool is provided between the interior material 61 and the exterior material 62 of the wall body 6 on the first floor, and the heat insulating material 63 and the exterior plate 6 are provided.
A ventilation layer 64 is provided between the two. First floor wall 6
The ventilation layer 64 is connected to the ventilation layer 34 of the wall body 3 on the second floor via the ventilation holes 23, 23, ... Of the ventilation plate body 2 above.

[Operation of Embodiment 1] Next, the operation of the ventilation device for a building of the present invention shown in FIG. 1 will be described. Since the ventilation layer 64 of the wall 6 on the first floor communicates with the ventilation layer 34 of the wall 3 on the second floor via the ventilation holes 23, 23, ... Air flows from the ventilation layer 64 of the wall body 6 on the first floor to the ventilation layer 34 of the wall body 3 on the second floor via the ventilation holes 23, 23, ... It

[Embodiment 2] FIG. 3 is a cross-sectional view showing another example of the ventilation device for a building of the present invention. In the ventilation device for a building of the present invention shown in FIG. 3, a groove floor steel floor beam on the second floor is used. A breathable plate body 2a made of so-called plastic corrugated board is bonded to the outer surface of 1a, and the second floor wall body 3a is provided at the lower end portion of the outer surface of the breathable plate body 2a.
Peripheral frame 32 provided on the inner surface of the panel-shaped exterior material 32a
The inner surface of 1a is abutted through the upper half of the draining sheet 4a, and the ventilation layer 64a provided inside the exterior material 62a of the wall 6a of the first floor attached to the ceiling beam 5a of the first floor is ventilated. Wall 3a on the second floor via a vent hole (not shown) of the flexible plate 2a
The ventilation layer 34a provided inside the wall 3a is ventilated.

Reference numeral 41a is a draining steel plate lined with a draining sheet 4a, 7a is an accent cover for covering the boundary between the first floor and the second floor, 71a is its mounting metal fitting, 31a is the wall 3
a is an interior material, 33a is a glass wool heat insulating material provided in the wall 3a, and 35a is a polyethylene windproof and moisture permeable sheet provided between the heat insulating material 33a and the ventilation layer 34a.

Although the embodiment of the present invention has been described above with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and design changes and the like within a range not departing from the gist of the present invention. Even if it exists, it is included in the present invention. For example, in the illustrated embodiment, the present invention is applied to the boundary between the first floor and the second floor, but the present invention is applied to the first floor and the second floor.
It can be applied not only to the boundary between floors but also to the boundary between the second and third floors or the boundary between other lower floors and upper floors.

[0020]

In the ventilation device for a building of the present invention, a breathable plate member that allows ventilation from below to above is attached to the outer surface of the floor beam of the upper floor at the boundary between the upper floor and the lower floor of the building, The lower end of the exterior material of the upper floor is in contact with the outer surface of the breathable plate, and the ventilation layer provided inside the exterior material provided on the outer surface of the ceiling beam of the lower floor passes through the breathable plate to the upper floor. Since it is connected to the ventilation layer provided inside the exterior material of
Ventilation between the ventilation layers provided inside the exterior material on the upper and lower floors is smoothly performed, and a preferable state for building ventilation is obtained.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a ventilation device for a building of the present invention.

FIG. 2 is a perspective view of a breathable plate used in the ventilation device for a building of the present invention shown in FIG.

FIG. 3 is a cross-sectional view showing another example of the ventilation device for a building of the present invention.

FIG. 4 is a cross-sectional view showing a conventional ventilation device for a building.

[Explanation of symbols]

 1, 1a 2nd floor floor beam 2, 2a Breathable plate 21 Plate 22 Partition 23 Vent 3, 3a Second floor wall 31, 31a Interior material 32, 32a Exterior plate 33, 33a Insulation 34, 34a Ventilation Layer 35a Windproof / breathable sheet 4, 4a Draining sheet 5, 5a 1st floor ceiling beam 6, 6a 1st floor wall 61 Interior material 62, 62a Exterior material 63 Insulation material 64, 64a Ventilation layer

Claims (1)

[Claims] 1. A ventilation plate that allows ventilation from below to above is attached to the outer surface of the floor beam of the upper floor at the boundary between the upper floor and the lower floor of the building, and the upper floor is attached to the outer surface of the ventilation plate. The lower end of the exterior material is abutted, and the ventilation layer provided inside the exterior material provided on the outer surface of the ceiling beam on the lower floor is provided inside the exterior material on the upper floor through the breathable plate. A ventilation device for buildings, which is connected to a ventilation layer.