JP2000027326A - Ventilation structure of building and ventilation structure of unit building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation structure for a building and a unit building which can prevent incursion of rainwater without a throating member having an especially complicated shape. SOLUTION: This building is provided with a roof balcony 2 installed on a lower floor habitable room space 3 and an upper floor habitable room space 5 horizontally adjoining thereto. The ventilation layer 11 in an external wall 9 facing the outdoor side of the lower floor habitable room space 3 is formed to communicate with an air passage in the floor panel of the roof balcony 2, and the air passage of the roof balcony is arranged to communicate with the ventilation layer 11 in the external wall 10 facing the outdoor side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a ventilation structure for buildings and unit buildings.

[0002]

2. Description of the Related Art Conventionally, as a general construction house, a ventilation type building has been disclosed (JP-A-57-24748). That is, the ventilated building has a ventilation layer between the outer wall and the inner wall of the building, and has an outside air vent at a position below the outer wall,
It is in communication with the ventilation layer. For this reason, in the summer, the cool air under the floor is inhaled to enhance the heat radiation effect of the building, and in the winter, the indoor warm air discharged to the back of the hut is circulated downward to improve the warming performance of the entire building. Japanese Patent Publication No. 4-72936 discloses the application of such advantages of a ventilation type building to a unit building. The unit building described in this publication is covered with a molding provided with an opening communicating with a connecting portion of the building unit and an outside air flow opening.

[0003] Further, there is known a drainage material and a drainage structure which have a ventilation opening at the lower end on the outer wall side of the building on the second floor with a rooftop balcony in front of the ventilation layer, and which drains over the ventilation opening.

However, in the mall provided at the lower end on the outer wall side of the unit building described in Japanese Patent Publication No. 4-72936, the opening completely prevents infiltration of rainwater when the wind is strong. There was a problem saying that it could not be shut off. In addition, the drainage material and the drainage structure have a complicated structure in order to ventilate the ventilation holes while waterproofing the outer floor of the upper floor on the roof balcony floor, thereby increasing the cost and increasing the ventilation. There is a problem that the handrail wall, which is an unnecessary part, has a complicated shape in order to match the drainage for ventilation. In addition, the above structure does not take into consideration the ventilation inside the roof balcony floor, so that there is also a problem such as dew condensation.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to prevent rainwater from entering without particularly needing a drainer having a complicated shape. It is an object of the present invention to provide a ventilation structure for a building and a unit building.

[0005]

According to a first aspect of the present invention, there is provided a ventilation structure for a building, comprising: a roof balcony installed above a lower floor living room; and an upper floor living room horizontally adjacent to the roof balcony. The ventilation layer in the outer wall facing the outdoor side of the floor room communicates with the ventilation path in the floor panel of the roof balcony, and the ventilation path of the roof balcony communicates with the ventilation in the outer wall facing the outdoor side of the upper floor room. It is characterized by being connected to a layer.

In the ventilation structure for a unit building according to the second aspect, the unit building is a lower-floor building unit horizontally adjacent to the unit building, a roof balcony installed on one lower-floor building unit, and the other lower-floor building. An upper-floor building unit installed above the unit, and a ventilation layer in the outer wall facing the outdoor side of the lower-floor building unit communicates with the ventilation path in the floor panel of the roof balcony, and the ventilation of the roof balcony The road is communicated with a ventilation layer in an outer wall facing the outdoor side of the upper-floor building unit.

[0007] In the ventilation structure for a unit building according to the third aspect, the roof balcony floor panel according to the first or second aspect is formed of a double panel, and the upper panel has a slope panel whose water side is higher than the water bottom side. Wherein the lower panel is made of a heat insulating panel.

[0008]

The ventilation structure for a building according to the first aspect of the present invention includes a roof balcony installed on the lower floor room and an upper floor room horizontally adjacent to the balcony, and the outdoor side of the lower floor room. The ventilation layer in the outer wall facing the outside communicates with the ventilation path in the floor panel of the roof balcony, and the ventilation path of the roof balcony communicates with the ventilation layer in the outer wall facing the outdoor side of the upper floor living room. Therefore, it is only necessary to take in the outside air from the ventilation hole on the foundation on the first floor, and it is not necessary to provide a drain for ventilation on the inner periphery of the roof balcony, and the shape of the drain on the outer wall of the building can be simplified.

In the ventilating structure for a unit building according to the second aspect, the unit building is a lower-floor building unit adjacent in the horizontal direction, a roof balcony installed on one lower-floor building unit, and the other lower-floor building. An upper-floor building unit installed above the unit, and a ventilation layer in the outer wall facing the outdoor side of the lower-floor building unit communicates with the ventilation path in the floor panel of the roof balcony, and the ventilation of the roof balcony Since the road communicates with the ventilation layer in the outer wall facing the outdoor side of the upper-floor building unit, the same effect as in claim 1 is obtained.

In the ventilation structure for a building and the ventilation structure for a unit building according to the third aspect, the floor panel of the roof balcony comprises a double panel of a slope panel and a heat insulating panel, and air flows on the upper surface of the heat insulating panel. Therefore, no condensation occurs between the gradient panel and the heat insulating panel.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view showing an arrangement of roof balconies provided in buildings, unit buildings, and the like, and a ventilation path. FIG. 2 is a cross-sectional view showing a ventilation structure of a roof balcony of a part shown in FIG. 1A according to one embodiment of the present invention. FIG. 3 is an enlarged cross-sectional view of the portion shown in FIG. 2B.

In this embodiment, a through hole is formed in a heat insulating panel below a roof balcony floor through a ventilation layer between an outer wall and an inner wall near a lower floor ceiling of a building in an upper floor portion having a roof balcony. On the upper side of the roof balcony floor, by providing notches in the horizontal rails on the water side supporting the upper floor panel and the frame material in contact with the upper floor outer wall, the ventilation layer on the upper floor outer wall and the roof balcony floor Shows a state in which the ventilation path communicates with the lower surface of the upper panel.

1 to 3, a building 1 is composed of a lower floor room 3, a roof balcony 2, an upper floor room 5, and a roof 6 on a foundation 7. In addition, the roof balcony includes a handrail wall 8, a waterproof sheet 13, a gradient panel 14, and a heat insulating panel 15. Ceiling panel 1 for lower floor living room
The heat insulation panel 15 installed on the upper side 2 is made of a urethane foam 152 on the middle side and has oriented strand boards 151 and 151 adhered to both upper and lower surfaces, and communicates with the ventilation path 11 of the lower floor outer wall 9. 10 x 50 mm square ventilation holes 19 are drilled at a pitch of 495 mm or less, and 10 m is provided in each of the horizontal rails 16 and the frame member 17 which is in contact with the upper floor outer wall at a right angle along the water surface of the gradient panel 14. × 50mm
Corner ventilation notches 18 are formed at a pitch of 495 mm or less and communicate with the ventilation path 11 of the upper floor outer wall 10.

FIG. 3 is an enlarged cross-sectional view of the portion shown in FIG. 2B. Air that has passed through the ventilation path 11 provided on the upper surface of the heat insulating panel 15 is pierced by a frame member 17 close to the upper floor outer wall 10. Through a notch 18, which is connected to a ventilation path 11 provided inside the upper floor outer wall 10 and communicates with an attic (not shown).

In the ventilation structure of a building according to the present embodiment, a through hole 19 is formed in a heat insulating panel 15 on a double rooftop balcony floor using a ventilation path 11 provided inside the building outer walls 9 and 10. Each cross rail 16 installed at right angles along the water surface of the slope panel 14 covered with the tarpaulin 13
A 10 × 50 mm square ventilation notch 18 is formed in the frame member 17 close to the upper floor outer wall, and communicates with the ventilation path 11 of the upper floor outer wall 10, so that ventilation and ventilation can be performed while waterproofing. Ventilation can be performed while preventing rainwater from entering the inside of the building without providing a complicated shape drainer.

In the ventilation structure for a building and the ventilation structure for a unit building according to the third aspect, the floor panel of the roof balcony is formed by a slope panel 14 in which the upper side of the floor is higher than the lower side. The side panel is formed of the heat insulating panel 15, air flows on the upper surface of the heat insulating panel 15, and ventilation is performed between the gradient panel 14 and the heat insulating panel 15, so that dew condensation hardly occurs.

[0017]

According to the first aspect of the present invention, there is provided a ventilation structure for a building, comprising: a roof balcony installed on a lower floor room; and an upper floor room adjacent to the balcony. The ventilation layer in the outer wall facing the outdoor side communicates with the ventilation path in the floor panel of the roof balcony, and the ventilation path of the roof balcony communicates with the ventilation layer in the outer wall facing the outdoor side of the upper floor living room. Therefore, ventilation is performed only by taking in the outside air from the vent on the foundation on the first floor, and the infiltration of rainwater is prevented. For this reason, it is not necessary to take ventilation from the drainage on the inner periphery of the roof balcony, and the shape of the drainage provided on the outer wall of the building can be simplified.

In the ventilating structure for a unit building according to the second aspect, the unit building is a lower-floor building unit horizontally adjacent to the unit building, a roof balcony installed on one lower-floor building unit, and the other lower-floor building. An upper-floor building unit installed above the unit, and a ventilation layer in the outer wall facing the outdoor side of the lower-floor building unit communicates with the ventilation path in the floor panel of the roof balcony, and the ventilation of the roof balcony Since the road communicates with the ventilation layer in the outer wall facing the outdoor side of the upper-floor building unit, the same effect as in claim 1 is obtained.

In the ventilation structure for a building and the ventilation structure for a unit building according to the third aspect, the roof balcony floor panel is a gradient panel in which the upper side of the water is higher than the lower side, and the lower panel is a heat insulating panel. Since air flows on the upper surface of the heat insulating panel and ventilation is performed between the gradient panel and the heat insulating panel, dew condensation hardly occurs inside the balcony floor.

[0020]

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an arrangement of roof balconies provided in buildings, unit buildings, and the like, and a ventilation path.

FIG. 2 is a cross-sectional view showing a ventilation structure of a roof balcony of a portion A in FIG. 1, which is one embodiment of the present invention.

FIG. 3 is an enlarged sectional view of a portion B in FIG. 2;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Building and unit building 2 Roof balcony 3,4,5 Living room 6 Roof 7 Foundation 8 Handrail wall 9,10 Exterior wall 11 Ventilation path 12 Ceiling panel 13 Waterproof sheet 14 Gradient panel 15 Insulation panel 151 Oriented strand board 152 Urethane foam Body 16 Cross rail 17 Frame material 18 Notch for ventilation 19 Through hole for ventilation 20 Drainer 21 Floor panel

Claims (3)

[Claims] 1. A roof balcony installed on a lower floor living room part and an upper floor living room part horizontally adjacent to the roof balcony,
The ventilation layer in the outer wall facing the outdoor side of the lower floor living room communicates with the ventilation path in the floor panel of the roof balcony, and the ventilation path of the roof balcony is located in the outer wall facing the outdoor side of the upper floor living room. A ventilation structure for a building characterized by being connected to a ventilation layer. 2. A lower-floor building unit in which unit buildings are horizontally adjacent to each other, a roof balcony installed on one lower-floor building unit, and an upper-floor building unit installed on the other lower-floor building unit. The ventilation layer in the outer wall facing the outdoor side of one of the lower-floor building units communicates with the ventilation path in the floor panel of the roof balcony, and the ventilation path of the roof-balcony is located on the outdoor side of the upper-floor building unit. The ventilation structure of the unit building, characterized in that it communicates with the ventilation layer in the outer wall facing the building. 3. The roof balcony floor panel is made of a double panel, and the upper panel has a sloped panel whose upper side is higher than the lower side, and the lower panel is a heat insulating panel. The ventilation structure of a building and the ventilation structure of a unit building according to 1 or 2.