JP2588867B2 - Wall structure in two-by-four construction house - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall structure of a house constructed by a two-by-four construction method.

[0002]

2. Description of the Related Art A two-by-four method is called a frame wall method, in which a floor frame is first made, then a wall frame is assembled and erected, and a floor frame of an upper floor is formed above the wall frame. The horizontal structure and the vertical structure have a box structure, which is built sequentially from below.

The details of the actual structure of the wall framing will now be described. A column framing material is nailed to a structural plywood to form a wall framing, and the wall framing is erected so that the structural plywood is positioned outside. Fill insulation material such as glass wool between frame materials,
A gypsum board is stuck on the inner surface side of the building, and an outer wall material is stretched outside the wall frame via a rim nailed at appropriate intervals to form a wall surface of the house.

[0004]

A large number of flat closed chambers made of the above-mentioned structural plywood, frame material and gypsum board are formed on the wall surface of the wall frame by the two-by-four construction method. If the moisture inside the closed room is condensed due to a change in the outside air temperature, the structural plywood, the heat insulating material, the frame material and the like will be rotten. Needless to say, if the heat insulating material and the like are sufficiently dried at the time of construction, the possibility of dew condensation is small at the beginning of the construction, but there is a sufficient possibility that moisture will infiltrate due to aging and dew condensation will occur to accelerate corrosion.

[0005]

SUMMARY OF THE INVENTION In view of the above problems, the present invention is an improvement on the structure of a wall frame in a two-by-four construction house. That is, the wall structure according to the present invention
In the wall surface structure of the conventional two-by-four construction method house, a vent is formed in a suitable portion of the structural plywood constituting the wall framework, a cylindrical vent that closely fitted to the vent hole, the cylindrical passage
Cover the entire upper part of the outer opening of the
A ventilation component having an eaves-shaped portion protruding to a fixed projection length ,
The eaves-shaped portion is attached to the vent hole with the eaves-shaped portion facing outward .

[0006]

The closed state of the closed wall of the wall partitioned by the structural plywood, the frame material and the gypsum board is released by the ventilation hole, and the air in the closed room flows through the ventilation hole. In particular, in the space between the structural plywood and the outer wall material generated by the interposition of the rim (the rim space), the air warmed on the ground during the day enters as an ascending airflow, so that the ascending airflow is directed downward. When the outside air temperature drops due to the introduction into the closed room in the structural plywood and the outside air temperature drops, the closed room air flows into the rim space due to the difference between the air inside the closed room and the outside air temperature, and the outside air frequently enters and exits the closed room. Is performed, the action of evacuating moisture from the closed room is promoted, and moisture is not formed in the closed room, thereby preventing the accompanying corrosion. Furthermore, since the eaves are provided so as to cover the entire upper part of the outside of the cylindrical ventilation part, the ventilation holes for removing moisture are formed by dew condensation flowing down the outer surface of the plywood and rainwater entering the trunk space. It does not become an entrance for water droplets such as.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a wall frame in the two-by-four construction method, and FIGS. 2 and 3 are vent holes ( water vents) for preventing water droplets from entering.
In parts), 4 and 5 show another example of a vent fitting.

In the two-by-four construction method, a wall frame is formed by connecting a plurality of vertical frame members 2 between edge frame members 1 (lower frame member and upper frame member) to form a frame, and a structural plywood 3 is mounted on the frame. This wall frame is built on a floor frame 4 so that the plywood 3 is on the outside, and a heat insulating material 5 such as glass wool is provided between the frame materials 1.
The gypsum board 6 is stretched on the inner surface, and the outer wall material 8 is stretched on the outside of the wall frame via the rim 7 to form the outer wall surface of the two-by-four construction house. Is a method in which a ventilation hole is previously formed in the structural plywood 3 and an appropriate ventilation fitting is attached to the ventilation hole. The vent fitting A has a flange portion b formed at the base end side of the vent portion a closely fitted to the perforated vent hole, the distal end portion of the vent portion a is an eave-shaped portion c, and the eave-shaped portion c An insect net d is stretched in the lower ventilation hole, and is attached to the ventilation hole of the structural plywood 3 in advance.

[0009] When a ventilation hole is mounted on the structural plywood 3 so that the eaves-like portion c is on the outer wall side and the conventional erection is performed, the inside and outside of the plywood 3 communicate with each other. the air flowing through the gap B between 3 and outer member 8 by the eaves-like portion c
Through the vent hole a guided inward of the plate 3, and more to the temperature difference inside the or exit from the other vent fitting point (preferably provided aeration holes in the upper and lower), or structural plywood 3 Te , And the air inside flows out into the gap B.

Therefore, the moisture inside the structural plywood 3 is released to the outside by the movement of the air, so that corrosion due to the moisture is prevented beforehand. In addition, if the ventilation hole fitting itself has sufficient strength, the structural strength that is reduced by forming the ventilation hole in the plywood can be sufficiently supplemented.

The ventilation holes provided in the structural plywood 3 are frame material 1,
At least one space may be provided in the space surrounded by 2, but if a plurality of spaces are provided, the flow of air in the space is improved, and the effect is doubled.

The vent fitting is not limited to the above-described embodiment. As shown in FIGS. 4 and 5, a flange b1 is provided around the eaves c1 and a screw is formed on the outer peripheral surface of the vent hole a1. And an arbitrary structure can be selected such that the inner flange b2 is screwed onto the screw and attached to the structural plywood 3, or the insect net d may be formed inside.

[0013]

According to the present invention, the wall frame is constructed as described above.
Two-by-four with a gap between structural plywood and outer wall material
When forming the wall surface of a house by the construction method , a ventilation hole is previously formed in the structural plywood, and
Attach a ventilation part having a hole and an eaves-shaped part to the ventilation hole
The simple means of adding the above means, to release the sealing of the inside space of the structural plywood, which was conventionally sealed , to realize effective ventilation between the inside of the sealed space and the outside air, because of the moisture in the space This prevents corrosion of steel.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an internal structure of a wall surface according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a wall surface on which a fitting serving as a water intrusion prevention mechanism is mounted.

FIG. 3 is a perspective view of the metal fitting.

FIG. 4 is a cross-sectional view of a wall surface to which another embodiment of the metal fitting is mounted.

FIG. 5 is a perspective view of the metal fitting of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Edge frame material 2 Vertical frame material 3 Structural plywood 4 Floor frame set 5 Insulation material 6 Gypsum board 7 Body edge 8 Outer wall material A, A1 Vent metal fitting a, a1 Vent hole b, b1, b2 Flange c, c1 Eaves -Shaped part d, d1 insect repellent net

Claims (1)

(57) [Claims] 1. A plurality of vertical frame members are connected between edge frame members.
A wall frame formed by nailing structural plywood to the frame ,
Raised built as structural plywood is outside, in the wall structure of a house that stretched outer wall material by interposing a furring strip on the outside of the structural plywood, to a suitable location of the structural plywood constituting the wall framework A ventilation hole, a tubular ventilation portion closely fitted to the ventilation hole,
An eaves-like portion that covers the entire upper side of the outer opening portion of the cylindrical ventilation portion and that projects downward to a projecting length that can be accommodated in the space between the structural plywood and the outer wall material generated by the interposition of the body edge. A wall structure in a two-by-four construction house, wherein a ventilation component having the eaves-shaped portion is attached to the ventilation hole with the eaves-shaped portion outside.