JPS6317765Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a ventilation system for a lower building.

As shown in Figures 1 and 2, a two-story building 1
In the case of a building whose floor area is set smaller than that of the first floor building 2, when ventilating the first floor roof part, that is, the attic space 4 of the lower building 3, the ventilation opening 6 provided in the first floor eaves 5 is usually used. This is done through. However, the humid air in the attic space 4 reaches the ceiling 7 on the first floor.
The air is warmed by the heat from the indoor room 8 on the first floor and becomes an updraft, which remains in the corner space of the lower building 3 and wall 9 and is hardly exhausted from the ventilation opening 6 to the outdoors 10, so in winter, the stagnant air 11 is outdoor 1
There is a problem in that the cold air of 0 is cooled and causes condensation 12 on the attic surface of the lower house 3, while hot air stays in the attic space 4 in the summer and makes the indoor room 8 hot.

Therefore, the purpose of this invention is to provide a ventilation system for an attic that can efficiently ventilate the attic.

An embodiment of this invention will be described with reference to FIGS. 3 and 4. In other words, this indoor ventilation system is
As shown in both figures, a ventilation port 14 and an intake port 15 are provided at the upper and lower positions of the outdoor surface of the second floor exterior wall panel 13, and an air passage 16 that communicates the ventilation port 14 and the intake port 15 is formed inside the panel. A first floor slanted roof 17 is provided to protrude downward from the middle position between the ventilation opening 14 and the intake opening 15 on the outdoor side of the second floor exterior wall panel 13 toward the outside, and the ceiling plate (corresponding to the first floor ceiling 7 in Fig. 2) is attached to the slanted roof. The sloped roof 17 is installed approximately horizontally below the roof 17.
An attic space 1 communicating with the air intake port 15 between
8 (lower space).

The second floor outer wall panel 13 has an outer frame 13a and an inner frame 13.
Surface plates 13c and 13d are attached to both sides of the outdoor surface plates 13c and 13b, respectively.
A ventilation port 14 and an intake port 15 are cut out between the middle frames 13b, and narrow auxiliary beams 13e and heat insulating materials 13f are alternately arranged in the indoor half space between the middle frames 13b, 13b. The outdoor half space in between is defined as a ventilation path 16. The installation of the second floor exterior wall panel 13 is carried out using the framework panel construction method, in other words, the first floor beam and the second floor beam are bridged between the through columns erected on the foundation, and the upper and lower ends of the second floor exterior wall panel 13 are attached to the Attach to the second and first floor beams.

The first floor sloping roof 17 has the upper edge of the roof board 19
Connected to the intermediate position between the ventilation opening 14 and the intake opening 15 on the outdoor surface of the floor exterior wall panel 13,
A flat roof finishing material 20 is laid on top, and the roofing board 1 is
A drain board base material 21 is fixed to the upper edge of the panel 9, and a drain board 22 is attached to the base material 2 from the outdoor surface of the second floor exterior wall panel 13.
1, extend to the upper end of the roof finishing material 20 along the outer surface of the roof finishing material 20, and place a draining cover base material 23 on the outdoor side of the upper edge of the draining plate 22, and approximately L on the outdoor side of the base material 23.
A shaped draining cover 24 is arranged and fixed with nails to the second floor outer wall panel 13 together with the base material 23 and the draining board 22.

Further, a ventilation hole 25 is fitted into the ventilation hole 14, and a caulking material 26 is placed at the joint portion thereof. This ventilation hole 25 includes an eave top piece 25a,
The inclined lower piece 25b and the inclined panel 25c are each set to be inclined downward toward the outdoor side to prevent rainwater from entering from the ventilation opening 25 into the ventilation path 16.

As a result of this configuration, the attic space 18 in the lower part of the house is divided into an inlet 15, an air passage 16, and an air vent 14.
It can communicate with the outdoors 27 via (ventilation garari 25),
Moreover, since the intake port 15 is provided at the top position of the attic space 18, the air in the attic space 18, which has become an upward draft due to the indoor heat on the first floor, can be smoothly exhausted to the outdoors 27 through the ventilation route. As a result, it is possible to prevent dew condensation from occurring in the attic space 18 in the winter, and to keep the first floor interior cool in the summer by reducing the rate of temperature rise in the attic space 18.

Moreover, the intake port 15, the ventilation port 14, the ventilation path 16
Since these are arranged inside the second floor exterior wall panel 13, they can be formed in advance at the factory when assembling the panels.Therefore, on-site ventilation work can be omitted, making on-site work easier. . Furthermore, since the ventilation hole 25 is attached to the ventilation opening 14, rainwater does not enter the attic space 18 through the ventilation path 16, and the rainwater shutoff performance is also excellent.

As described above, the shed ventilation system of this invention consists of an exterior wall panel that has ventilation ports and intake ports arranged above and below the outdoor surface and a ventilation path that communicates the ventilation ports and the intake ports inside, and the exterior wall panel. A slanted roof protruding downward from the intermediate position between the ventilation port and the air intake port on the outdoor side of the panel toward the outside, and an attic that is arranged approximately horizontally below the sloped roof and communicates with the air intake port between the sloped roof and the slanted roof. Since it is equipped with a ceiling material that forms a space, it has the effect of efficiently ventilating the attic.

[Brief explanation of drawings]

FIG. 1 is a plan view of a conventional example, FIG. 2 is a cross-sectional view for explaining its drawbacks, FIG. 3 is a perspective view of an embodiment of the invention, and FIG. 4 is a cross-sectional view thereof. 13...2nd floor external wall panel, 14...ventilation vent, 1
5...Intake port, 16...Air passage, 17...1st floor sloped roof, 18...Attic space.

Claims (1)

[Scope of utility model registration request] An exterior wall panel that has ventilation ports and intake ports located above and below the outdoor surface and has an internal ventilation path that communicates the ventilation ports and the intake ports, and an exterior wall panel that is located at an intermediate position between the ventilation ports and the intake ports on the outdoor surface of the exterior wall panel. A lower house ventilation system comprising a sloped roof projecting downward to the outdoors, and a ceiling material arranged substantially horizontally below the sloped roof to form an attic space communicating with the air intake port between the sloped roof and the sloped roof. .