JPH11280169A - Ventilation construction at eaves edge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve waterproof performance by forming an L-shaped air vent passage opened downward with an exterior wall of a building, a verge decorative board, and a verge backing material and providing a hung projected portion directed to the inlet of the air vent passage on the lower surface of the verge backing member, thereby securing ventilation at the eaves edge and preventing the straight ingress of rainwater reaching the verge backing member toward the depth of the eaves. SOLUTION: An exterior wall of building 1 is constituted of a siding material 2 and a metal frame 2, and a roof metal piece 5 is fixed to the upper end. Also, a space (a) is formed of a verge backing member 6 consisting of a verge backing board 7 and a rafter 8, and a roof metal piece 5. An L-type verge decorative board 12 made by extrusion molding of cement is fixed to the rafters, and inlet (b) for air vent passage is made between a bottom piece of the decorative board 12 and the siding member 2. Moreover, below the rafter 8, the rafter 16 is fixed to the siding member 2 through a space (c), thereby forming an L-shaped vent passage X for lower opening by the rafter 16, the siding member 2 and the L-shaped verge decorative member 12, and a projection 8b hung toward the rafter 16 side is provided at the lower surface 8a of the rafter 8 at the side of verge backing board 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eaves ventilation structure comprising an outer wall of a building, a gable decorative panel, and a gable base material.

[0002]

2. Description of the Related Art Conventionally, eaves ventilation is performed by, for example, bolting a gable base material 6 and a rafter 8 to a roof hardware 5 fixed to an upper end of a metal frame 3 on an outer wall, as shown in FIG. A cement gout veneer 12 is positioned at a distance from the barn, and nailed to the rafter 8, and between the two 8 and 12, a rafter 16 serving as a foundation around the outer wall and a rafter 12 a serving as a foundation around the gout veneer are placed. Each is fixed to form an L-shaped ventilation passage X. Further, since the gable decorative panel 12 is a mere flat plate, it requires a barb 12a of a gable decorative panel for preventing direct injection of rainwater.
The gable decorative board was covered by 2b, and the number of parts was large.

[0003]

However, there is a risk that rainwater will enter the eaves deep from the outside as shown by the arrow. There is a risk that the vehicle may change direction at right angles and proceed to the back without any trouble, and there is a need for further technical development. In addition, the number of parts, such as the surrounding base and the aluminum cover, was large. The present invention has been made in view of the above points, and has as its object to improve waterproof performance and to simplify a gout decorative board.

[0004]

In the eaves ventilation structure according to the present invention, a hanging projection serving as an obstacle wall is provided on the lower surface of the gable base material in the ventilation passage so as to meander the rainwater in the eaves as much as possible. In addition, in order to prevent an increase in the number of parts due to the addition of the function of the hanging projection, it is integrated with the bark of the gable base material. Further, in order to reduce the number of parts, the gout decorative board is formed into an L shape by inorganic extrusion.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, the building outer wall 1 is composed of a side material 2 and a metal frame 3. A roof hardware 5 is fixed to an upper end of the frame 3 by bolts 4. The gable base material 6 is composed of a gable base plate 7 and a bar 8, and forms a fixed space a with the roof hardware 5. More specifically, the U-shaped channel 9 is fixed to the roof hardware 5 with bolts 10, the rafters 8 are fixed with nails 11, respectively, and the gable base plate 7 is received by both 8 and 9.

Further, the rafters 8 fasten the gable decorative board 12 with nails 15. This gable decorative panel 12 is formed in an L-shape by extrusion molding of an inorganic material such as cement.
And the lower piece 14 are integrally formed.
Faces the outside of the side wall 1 at a certain distance,
The ventilation passage entrance b is formed. Another rafter 16 is located below the rafter 8 of the gable base material 6 and is fastened to the siding material 2 with a nail 17 so as to pass through the space c, and the rivet 16, the siding material 2, and the L-shaped gout makeup An L-shaped ventilation passage X having a lower opening is formed by the material 12.

The lower surface 8a of the rafter 8 on the gable base plate 7 side
Is provided with a protruding portion 8b that hangs downward toward the side of the rafter 16 at the back of the L-shaped ventilation passage X. Therefore, the space c formed by the two trees 8, 16 is a two-stage space having a wide entrance and a narrow depth, and rainwater from the outside is first provided under the gout decorative board 12 as shown by the arrow. It penetrates from the ventilation passage entrance b formed by the piece 14 and the siding material 2, hits the rafter 16, changes its direction and proceeds upward, reaches the upper rafter 8, and is turned downward by the projection 8 b. Then, through the space c of the two trees 8, 16 and the roof hardware 5, the space reaches the fixed space a. That is, it becomes more difficult for rainwater to enter the protrusion 8b of the upper tree 8.

[0008]

The present invention is as described above. According to the first aspect of the present invention, a drooping projection 8b is provided on the lower surface of the gable base material 6 toward the entrance b of the ventilation passage, and penetrates from the entrance b to form the gable base. Lumber 6
The rainwater that has arrived at the building does not hinder the progress at the drooping projections 8b, and does not go straight to the back of the eaves at a stretch. Therefore, proper ventilation of the eaves in the building and improvement of waterproof performance can be achieved. It is. The invention according to claim 2 is characterized in that the hanging projection 8b
Is provided on the rafter 8, so the original rafter 8 is a gable veneer 1
2 and the gable base material 6 are indispensable, so that the number of parts does not increase.

According to the third aspect of the present invention, the gout decorative panel 12 is formed into an L-shape by extrusion of an inorganic material so that the lower piece 14 forming the ventilation passage entrance b with the outer wall 1 is integrally formed. As described above, the base material and the aluminum cover are not required, so that the number of parts can be reduced and simplification can be achieved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of the present invention.

FIG. 2 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building outer wall 6 Gable foundation board 8 Barrel 8b Hanging protrusion 12 Gout decorative board 14 Lower piece X L-shaped ventilation passage b Ventilation passage entrance

Claims (3)

[Claims] An L-shaped ventilation passage having a lower opening is formed by an outer wall of a building, a gable decorative panel, and a gable base material, and a hanging projection is provided on a lower surface of the gable base material toward the ventilation passage entrance. An eaves ventilation structure characterized by preventing rainwater that has entered and reached the gable base material from going down the eaves as a hindrance to the drooping protrusions. 2. The eaves ventilation structure according to claim 1, wherein the gable base material is a gable base plate and a bark, and the bark is provided with a hanging projection integrally therewith. 3. A gout decorative panel is formed integrally with a lower piece forming an entrance of a ventilation passage with an outer wall, and is formed by extrusion of an inorganic material.
3. The method as claimed in claim 1, wherein said second member is formed in a shape.
Eaves ventilation structure described.