JPH05141058A - Roof unit and garret ventilation structure - Google Patents

Abstract

PURPOSE:To install a ridge ventilator around the ridge of a roof unit forming a gable roof, and to ventilate a garret. CONSTITUTION:In a roof unit 11, in which ridge pieces 16 are mounted to the ridge section of a roof structure 15 forming gable roof surfaces, the two ridge pieces 16 are fixed on both sides of the ridge section of the roof structure 15 at an interval. One batten 17 is applied to one ridge piece 16 side, and the other batten 17 is applied to the other ridge piece 16 side.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to roof units and attic ventilation structures.

[0002]

2. Description of the Related Art Conventionally, as a ventilation structure for a roof
As described in Japanese Patent No. 15712, there is one in which a ridge ventilation device is provided around the roof ridge. This ridge ventilation device forms a ventilation path between a field board and a roof outer surface material, and ventilates the ventilation path through a ventilation passage configured by the ridge ventilation device.

[0003]

However, in the prior art, the purlin provided in the ridge portion of the roof has a pentagonal cross section, and both flow roof surfaces are provided on both sides of the two mountain-shaped top faces. It is covered with a forming board.

Therefore, the ventilation passage formed by the ridge ventilation device and the attic are blocked from flowing by the above-mentioned purlins and floor boards, and as a result, attic ventilation cannot be performed.

It is an object of the present invention to provide a ridge ventilation device around a ridge of a roof unit forming a double roof so as to enable ventilation of an attic.

[0006]

According to the present invention as set forth in claim 1, in a roof unit in which a purlin is provided on a ridge portion of a roof structure forming a double-flow roof surface, two purlins are used as the roof structure. It is fixed on both sides of the ridge part with a space, one roof surface material is attached to one ridged side, and the other roof surface material is attached to the other ridged side. ..

The present invention according to claim 2 is an attic ventilation structure for a roof unit in which a ridge is provided in a ridge portion of a roof structure forming a double-flow roof surface, wherein the roof unit has two ridges. Fixed on both sides of the ridge portion of the roof structure via a gap, one roof surface material is attached to one ridged side, the other roof surface material is attached to the other ridged side, A ridge ventilation device is provided around the ridge of the roof unit so that the area between the two ridges serves as an attic ventilation opening.

[0008]

[Operation] In a roof unit that forms a double roof,
Two purlins were fixed on both sides of the ridge portion of the roof structure with a space, one roof surface material was adhered to one purlin side, and the other roof surface material was adhered to the other purlin side. .. The area between the two purlins was used as an attic ventilation opening. As a result, the ventilation passage formed by the ridge ventilation device provided around the ridge of the roof unit can be communicated with the attic through the ventilation opening, and as a result, attic ventilation can be performed.

[0009]

EXAMPLE FIG. 1 is a schematic view showing an example of an attic ventilation system by a ridge ventilation device, FIG. 2 is a schematic diagram showing an example of a ridge ventilation device, and FIG. 3 is a schematic diagram showing an example of a roof unit.

The attic ventilation structure 10, as shown in FIG.
A ridge ventilation device 13 is provided around the ridge of the roof 12 formed by the roof unit 11 to ventilate the attic 14.

As shown in FIGS. 1 and 3, the roof unit 11 has two left and right triangular purlins 16 and 16 fixed on both sides to a ridge portion of a roof structure 15 forming both flow roof surfaces. Then, one of the purlins 16 side is covered with the roof plate 17 and the roof tile 18 as one roof surface material, and the other purlin 16 side is covered with the roof plate 17 and the roof tile 18 as the other roof surface material. Composed.

The roof structure 15 of the roof unit 11
As shown in FIG. 3, the roof truss 23 is mounted on the upper part of the rectangular parallelepiped frame assembly including the side truss 21 and the small wall 22.

In the roof unit 11, 2
An area between two purlins 16 and 16 is used as an attic ventilation opening 25, and a ventilation passage 36 formed by the ventilation device 13 and the attic 14 are communicated by the attic ventilation opening 25.

At this time, as shown in FIG. 2, the ridge ventilation device 13 is configured to have a lower structural body 31, an upper structural body 32, and first to third draining members 33A to 33C. It

The lower structure 31 is a long body which has a substantially chevron cross section and is continuous. The lower structure 31 is screwed to the support fittings 34 nailed to the roof tiles 18 located on both sides of the roof 12 of the ridge. It should be noted that a plurality of vent holes 35 are opened at regular intervals at the top of the substantially mountain-shaped cross section of the lower structure 31.

The upper structure 32 is a continuous body having a substantially chevron cross section, and is screwed to the lower structure 31 via the left and right ventilation passages 36, 36 around the lower structure 31. Will be stopped.

The first draining member 33A includes the left and right ventilation passages 3
It is supported by the lower structural body 31 via the mounting bracket 37A at the inlet side of 6, 6. The second drainage member 33B is supported by the lower structural body 31 at an intermediate portion between the left and right ventilation passages 36, 36. The third draining member 33C includes the left and right ventilation passages 36, 3
It is supported by the lower structural body 31 via a mounting member 37C at a position where it partially overlaps with the second draining member 33B on the inner side of 6 and faces the second draining member 33B. The first draining member 33A and the third draining member 33C are arranged in an inverted U shape, and the second draining member 33B is arranged in a U shape. As a result, each ventilation passage 36 has a zigzag shape so as to pass between the first drainage member 33A and the passage-side inner surface of the lower structural body 31 and between the second drainage member 33B and the third drainage member 33C. It will be bent and will prevent the ingress of rainwater.

Further, in the ridge ventilation device 13, a heat insulating material 41 is attached to the inner surfaces of the lower structural body 31 and the upper structural body 32. As the heat insulating material 41, for example, polyethylene having independent foaming is suitable.

Further, in the ridge ventilation device 13, a waterproof sealing material 42 is loaded between the heat insulating material 41 adhered to the inner surface of the upper structural body 32 and the third draining material 33C. As the waterproof sealing material 42, one having excellent watertightness and compression recovery property, for example, EPDM is suitable.

Next, the operation of this embodiment will be described. In the roof unit 11 forming the double shed roof 12, two purlins 1 are provided on both sides of the ridge portion of the roof structure 15.
6 and 16 are fixed via a space, and one of the purlins 16 is covered with a roof plate 17 and a roof tile 18 as one roof surface material,
On the side of the other purlin 16 is a base plate 17 as the other roof surface material.
And the roof tile 18 was applied. And two purlins 16, 16
The inter-regional space was used as the backside ventilation opening 25. As a result, the ventilation passages 36, 36 configured by the ridge ventilation device 13 provided around the ridge of the roof unit 11 are connected to each other through the ventilation port 25.
It can be distributed with the attic 14, resulting in attic ventilation.

In the ridge ventilation device 13, the upper structure 3
The waterproof sealing material 42 is loaded between the inner surface of the passage 2 and the draining material 33C. Therefore, the draining member 33C bends,
Even if a deformation such as twisting occurs, no gap is formed between the draining member 33C and the passage-side inner surface of the upper structure 32 due to the presence of the waterproof sealing member 42. Therefore, due to the generation of the gap, (a) the ventilation passage 36 in the ridge ventilation device 13 may be straightened to allow rainwater to enter, or (b) the rainwater on the inlet side of the ventilation passage 36 in the minute gap. There is no risk of introducing rainwater into the ventilation passage 36 by the capillary phenomenon to allow rainwater to enter.

The heat insulating material 41 is attached to the inner surface of the upper structure 32 on the passage side, and the waterproof sealing material 42 is loaded between the heat insulating material 41 and the draining material 33C. The above action can be ensured while preventing the occurrence of dew condensation on the passage-side inner surface.

[0023]

As described above, according to the present invention, the ridge ventilation device is provided around the ridge of the roof unit forming the double-spilled roof, and the attic ventilation can be performed.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an example of an attic ventilation structure using a ridge ventilation device.

FIG. 2 is a schematic view showing an example of a ridge ventilation device.

FIG. 3 is a schematic view showing an example of a roof unit.

[Explanation of symbols]

 10 Attic ventilation structure 11 Roof unit 13 Ventilator 14 Attic 15 Roof structure 16 Purlin 17 Field plate (roof surface material) 25 Attic ventilation

Claims (2)

[Claims] 1. A roof unit in which a ridge is provided in a ridge portion of a roof structure that forms a double-flow roof surface, and two ridge trees are fixed to both sides of the ridge portion of the roof structure with a space therebetween. A roof unit in which one roof surface material is adhered to the purlin side and the other roof surface material is adhered to the other purlin side. 2. In an attic ventilation structure of a roof unit in which a ridge is provided in a ridge portion of a roof structure that forms a double-flow roof surface, the roof unit includes two ridges in a ridge portion of the roof structure. It is fixed on both sides with a space, and one roof surface material is attached to one purlin side, and the other roof surface material is adhered to the other purlin side. An attic ventilation structure characterized by being covered with a ventilation device and using the area between the two purlins as an attic ventilation opening.