JP2001123608A - Attic space ventilating structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attic space ventilating structure of assuring a sufficient ventilation amount at an attic space in a house having a roof of a rectangular type or a short-ridge hipped type. SOLUTION: In this attic space ventilating structure, a covering member 38 is arranged at a given space above a hip rafter 232 of a roof truss, a preset gap 29 is provided between the hip rafter 22 and a sheathing roof board 27, both ends in the cross direction of the covering member are connected to the roof board at both sides of the hip rafter 22 to form a ventilation passage 40 between the hip rafter and the covering member and the upper end of the passage is connected to a ventilation member provided at the to of the roof truss. The upper part of the passage can be covered with a waterproof sheet 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vaulted backside ventilation structure which utilizes a corner ridge of a house to increase the ventilation efficiency of a vaulted backside.

[0002]

2. Description of the Related Art There are various types of roofs in a house. For example, as shown in FIG. 8, in the case of a rectangular type roof 1 in which ridges 1a in four directions are gathered at the top of the roof, the roof has The ventilation member 2 is attached so as to ventilate the back of the cabin. As shown in FIG. 9, the ventilation member 2 has, for example, a flat rectangular opening frame 5 attached to a rafter 3 (rafter) via a twist metal fitting 4 and the upper part of the opening frame 5 is made of a metal building. Covered by the cover 6, air in the back of the hut K is discharged from the opening frame 5 to the outside through the lower part of the peripheral edge of the ridge cover 6 as shown by an arrow A.

[0003]

However, in the above-described ventilation structure, since the ventilation member 2 is provided only on the top of the roof 1, the size of the ventilation member 2 is originally small. Further, as shown in FIG. 10 which is a schematic plan view, the truss 7, the rafter 3 arranged in a direction orthogonal to the truss 7, and the ridge lines 1 a are arranged below the ventilation member 2. Since the upper ends of the four corner blocks 8 are connected to each other,
The ventilation opening for discharging the air in the back of the hut K to the outside via the opening frame 5 is substantially limited to only the gap between the members indicated by hatching B, and there is a problem that it is difficult to secure a sufficient ventilation volume. Was. In addition, 9 in FIG. 10 is a distribution rafter arranged on both sides of each corner 8.

[0004] In the case of the above-mentioned square type roof 1, it is also considered that a ceiling ventilation hole (not shown) behind the eaves compensates for insufficient ventilation. However, the air in the back of the hut K is easily affected by the solar heat and easily moves upward with an increase in the temperature. Therefore, it is difficult to promote the ventilation of the hut K in the ceiling ventilation hole.

[0005] As a result, conventionally, (1) the ventilation of the back of the hut K is insufficient and air stagnation tends to occur, and moisture is hardly discharged, so that the durability of wood tends to decrease.
(2) The back of the hut K tends to be hot and humid, so that it is used only as a storage space and is difficult to use as a living space. In addition, also in the roof 10 of the ridge type as shown in FIG. 11, since the ventilation member 11 on the roof 10 side is provided only in the ridge portion 12, the ridge portion 1
When the length L is short, it is difficult to secure a sufficient amount of ventilation in the back of the hut, as in the case of the above-described rectangular roof 1.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and can provide a sufficient amount of ventilation in the back of a hut even in a house having a roof of a rectangular type or a short ridge type. It is intended to provide a ventilation structure.
For this reason, the ventilation structure for the back of a hut according to the first aspect is arranged such that a ventilation member is disposed above a corner of a hut group with a predetermined space therebetween, and a predetermined gap is provided between the corner and the base plate. Characterized in that both ends in the width direction are connected to the base plate on both sides of the corner block. According to such a configuration, the air behind the shed flows into the space between the corner block and the ventilation member from the gap between the corner block and the ground board, and is further discharged outside through the ventilation opening of the ventilation member. become. In this specification, the "ventilating member" is provided on a roof,
A member that has a ventilation opening for discharging the air behind the hut to the outside, and covers the upper part of the ventilation opening so as to prevent rainwater or the like from entering the hut.

According to a second aspect of the present invention, there is provided a vaulted backside ventilation structure, wherein a covering member is disposed above a corner block of a hut group with a predetermined space therebetween, and a predetermined gap is provided between the corner block and a base plate. A ventilation passage is formed between the corner block and the covering member by connecting both ends in the width direction of the member to the above-mentioned base plate on both sides of the corner block, and the upper end of the passage is provided at the top of the hut set. It is characterized by being connected to a member.

According to the above configuration, the air behind the hut tends to move upward due to a rise in temperature due to the influence of solar heat, but this air flows into the ventilation passage from the gap between the corner block and the base plate. Then, it moves to the top (ridge) of the roof via this passage, flows into the ventilation member, and is discharged outside through the ventilation opening.

According to a third aspect of the present invention, in the structure according to the second aspect, a narrow edge narrower than the corner block is fixed to a substantially middle portion of the upper surface of the corner block in a width direction substantially in parallel with the corner block. A waterproof sheet is provided so as to extend from one side of the corner board to the other side board of the corner tree through the edge of the corner, and form the ventilation passage between the corner board and the waterproof sheet. It is characterized by having done.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the hut set 21 for supporting the square type roof 20 is mainly indicated by dotted lines as shown in a schematic plan view, but the truss 7 and the direction orthogonal to the truss 7 are similar to the above-mentioned conventional example. The truss 7 is provided with the rafters 3 arranged, and the four corners 22 are provided between the truss 7 and the rafters 3. The upper ends of these members in the inclination direction are connected to each other at the top of the roof 20. FIG.
In the middle, members having the same arrangement direction, position and configuration as those of the above-mentioned conventional example are denoted by the same reference numerals. Regarding the corner block 22, the arrangement direction and position are the same as those of the conventional corner block 8, but will be described later. Since the cross-sectional shapes are different as described above, different reference numbers are given.

A ventilation member 23 is attached to the top of the roof 20. As shown in FIG. 2, the ventilation member 23 includes a fixing hardware 24 having an opening 24a in the center, and a pair of upper and lower ridge covers 25 and 26 arranged on the fixing hardware 24, as shown in FIG. The air in the back of the hut K passes through the opening 24a of the fixed hardware 24 and is discharged to the outside as shown by an arrow C from a gap (not shown) between the ridge covers 25 and 26, while rainwater or the like on the back of the hut K is discharged. Intrusion is prevented by the ridge covers 25 and 26.

Between the distributed rafters 9 adjacent to the hut set 21, field boards 27 and 28 are attached over substantially the entire surface of the roof. At this time, the field plate 27 closest to the corner block 22 is formed, for example, in a plane triangular shape, while the field plate 28 in other positions is formed, for example, in a plane rectangular shape. A predetermined gap 29 (gap) for allowing air in the back of the hut K to flow into the upper part of the corner block 22 as shown by an arrow D in FIG. The width G of 29 is, for example, 10 to 50.
mm, preferably about 30 mm).

As shown in FIG. 4 which is a schematic sectional view taken along the line IV-IV in FIG. 1, the waterproof sheets 30 are placed on the base plates 27 and 28 so as to cover the same area as the base plates 27 and 28.
(Asphalt roofing, etc.) and exterior finishing material 31
(Color vests and the like) are sequentially laid, and the above-mentioned gap 29 is formed between the exterior finishing material 31 and the corner block 22 closest to the corner block 22. Although the planar shape of the exterior finishing material 31 is not specifically illustrated, for example,
As in the case of 28, a triangular shape and a rectangular shape can be selectively used depending on the position.

Above each corner 22, a ventilation member 33 for a corner ridge is disposed with a predetermined space 32 therebetween. The ventilation member 33 includes a fixed hardware 34 having a bulging portion 34a bulging upward at an intermediate position in the width direction, and the fixed hardware 34.
It consists of a corner ridge cover 35 made of metal or the like, which is attached so as to cover the bulging portion 34a. Air in the space 32 passes through openings (not shown) provided on both sides of the bulging portion 34a, and further bulges. Through the partition plates 34b and 35a attached to the portion 34a and the corner ridge cover 35, respectively, and the mesh plate 36 provided between the bulging portion 34a and the corner ridge cover 35, they are discharged to the outside as shown by the arrow E. I have.

On the exterior finishing material 31 closest to the corner 22, a long mounting plate 37 is fixed substantially in parallel with the corner 22, and both ends of the fixing hardware 34 are shown on the mounting plate 37. It is fixed using screws that do not. According to the above configuration, the air in the back of the hut K passes through the gap 29 between the corner block 22 and the base board 27 between the adjacent distribution rafters 9 and flows into the space 32 above the corner block 22, and the fixed hardware 34 Through the opening of the corner ridge cover 35 to be discharged outside. Note that the upper part of the fixed hardware 34 is covered with the corner ridge cover 35, and rainwater and the like do not flow into the back of the hut K.

As described above, in the present embodiment, the roof 2
Since the air in the back of the hut K is exhausted not only from the ventilation member 23 at the top (ridge) of 0, but also from the ventilation member 33 in each corner ridge, the ventilation of the back of the hut K is performed well, Since the rise in the temperature and humidity of the hut back is suppressed, the durability of the wood of the hut back K constituting the hut combination is improved, and the hut back K can be used as a living space or the like.

FIG. 12 shows a conventional corner block 8 and a base plate 13.
Conventionally, for example, the corner block 8 is formed in a pentagonal cross-section and the base plate 13 and the exterior finishing material 14 are provided up to the corner block 8 so that the gap between the corner block 8 and the base plate 13 is conventionally known. Did not exist, and it was impossible to discharge air from the back of the hut K to the upper part of the corner block 8 and perform ventilation in the corner ridge.

Next, another embodiment of the present invention will be described. As shown in FIG. 5, in the present embodiment, the corner ridge 22 is not ventilated in the corner ridge itself, but is provided between the corner ridge 22 of the corner ridge and a covering member 38 such as a metal provided above the corner ridge 22. A longitudinally extending passage 40 is formed, as shown in FIG.
The warm air in the back of the hut K is moved diagonally upward along the passage 40 to the top (ridge) of the house, and
From the outside.

That is, on the upper surface of the corner block 22, the corner block 22
A narrower edge 41 is attached along the longitudinal direction of the corner block 22. And the waterproof sheet 30 is a corner block 2
2 is continuously laid on the other side of the corner board 22 from the top of the field board 27, 28 through the upper surface of the field edge 41, and on both sides of the field edge 41. The space formed therebetween forms the above-mentioned passage 40. Both ends in the width direction of the covering member 38 are fixed on the same mounting plate 37 as in the above embodiment.

As shown in FIG. 7, conventionally, the inflow of air from the back of the roof K to the ventilation member 23 at the top of the roof is performed only from the area indicated by hatching B between the adjacent corner block 22 and the truss 7 or the rafter 3. However, by forming a passage 40 on both sides of the ridge 41 on the upper surface of the corner block 22 and extending this passage 40 below the ventilation member 23, the passage 40 indicated by hatching H can also be inserted into the ventilation member 23 from the back of the shed. Since the air of K can flow in, the ventilation efficiency of the attic K from the ventilation member 23 is greatly improved. In particular, since the air in the back of the hut K has a high temperature under the influence of solar heat and easily moves upward, the ventilation member 23 can be easily passed through the passage 40.
Move up to.

In the above embodiment, the waterproof sheet 30 is provided up to the upper surface of the ridge 41 to ensure sufficient waterproofness of the corner ridge. However, as shown in FIG. In such a case, the entire space between the corner block 22 and the covering member 38 forms the passage 40, so that the cross-sectional area of the passage 40 is enlarged and the exhaust function through the passage 40 is increased. Can be further increased.

In each of the embodiments described above, the ventilation structure at the back of the roof in the square type roof as shown in FIG. 8 has been described. However, even in the ridge type roof as shown in FIG. When the length L is short, the attic back ventilation structure of the present invention as shown in FIG. 4 or FIG. 5 can be adopted.

[0023]

As described above, according to the first aspect of the present invention,
The ventilation structure at the back of the hut is provided with a ventilation member over a corner of the hut, with a predetermined space therebetween, and with a predetermined gap between the corner and the field board, and both ends of the ventilation member in the width direction. Is connected to the ground board on both sides of the corner, so that the air behind the hut flows into the space between the corner and the ventilation member through the gap between the corner and the ground board, and It will be discharged outside through the ventilation holes provided. As a result, for example, when a ventilation member is provided only on the top (ridge) of the roof, such as a house having a square type or a ridge-type roof with a short ridge, sufficient ventilation of the back of the hut cannot be performed. However, by using the ventilation member of the corner ridge (upper corner) according to the structure of the present invention, a sufficient ventilation can be secured.

As described above, according to the first aspect of the present invention, since the air can be smoothly circulated behind the hut and the moisture can be easily discharged, the durability of wood and the like is improved. is there. In addition, since the rise in the temperature of the back of the hut is suppressed and the rise in humidity is also suppressed and a suitable dry state is obtained, the use of the hut can be expanded, for example, it can be used as a living space or the like. .

According to a second aspect of the present invention, there is provided a vaulted backside ventilation structure, wherein a covering member is disposed above a corner of a hut group with a predetermined space therebetween, and a predetermined gap is provided between the corner and the base plate. A ventilation passage is formed between the corner block and the covering member by connecting both ends in the width direction of the member to the open board on both sides of the corner block, and the upper end of the passage is provided at the top of the hut assembly. Because it is connected to the members, the air behind the hut, which easily moves upward due to the effect of solar heat, flows into the ventilation path from the gap between the corner block and the base plate, and the roof It is guided to the top and is discharged outside through the ventilation member.

In this case, the air has conventionally flowed into the ventilation member only from the gap between the corners (if there is a truss other than the corner, between the corner and the truss). According to the present invention, since the air behind the hut can flow into the ventilation member from the above-mentioned passage in addition to the above-mentioned gap, ventilation efficiency from the inside of the hut is improved as a whole.

According to a third aspect of the present invention, in the structure according to the second aspect, a narrow edge narrower than the corner block is fixed to a substantially middle portion of the upper surface of the corner block in a width direction substantially in parallel with the corner block. A waterproof sheet is provided so as to extend from one side of the corner board to the other side board of the corner tree through the edge of the corner, and form the ventilation passage between the corner board and the waterproof sheet. Since it is possible to guide the air behind the hut to the top of the roof through the ventilation path between the corner block and the waterproof sheet and discharge it, and the top of the corner block is covered with the waterproof sheet, Problems such as rainwater leaking from the corner ridge are less likely to occur.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing a rectangular roof having a vaulted ventilation structure according to an embodiment of the present invention.

FIG. 2 is a partially exploded perspective view showing a ventilation member provided on the top of the roof.

FIG. 3 is a schematic sectional partial view showing the ventilation member.

FIG. 4 is a partially enlarged cross-sectional view of the corner ridge along the line IV-IV in FIG. 1;

FIG. 5 is a partially enlarged cross-sectional view corresponding to FIG. 4, showing a corner ridge in another embodiment of the present invention.

FIG. 6 is a schematic perspective view showing a relationship between a covering member at a corner ridge and a ventilation member at the ridge in the embodiment of FIG. 5;

FIG. 7 is a schematic plan view showing a shed assembly in the embodiment of FIG. 5;

FIG. 8 is a schematic perspective view showing a conventional house having a rectangular roof.

FIG. 9 is a partially enlarged cross-sectional view along the line IX-IX in FIG. 8;

FIG. 10 is a schematic plan view of a hut group supporting the rectangular roof of FIG. 8;

FIG. 11 is a schematic perspective view showing a house having a conventional ridge-type roof.

FIG. 12 is a schematic cross-sectional view showing a relationship between a corner board and a field board in a corner ridge portion of a conventional house.

[Explanation of symbols]

 27, 28 Field board 29 Gap 30 Waterproof sheet 32 Space 33 Ventilation member 38 Covering member 40 Passage 41 Field edge

Claims (3)

[Claims] 1. A ventilation member is arranged above a corner of a hut set with a predetermined space therebetween, and a predetermined gap is provided between the corner and a base plate. Characterized by being connected to the above-mentioned ground plate on both sides of the roof. 2. A covering member is arranged above a corner block of a hut group with a predetermined space therebetween, and a predetermined gap is provided between the corner block and a base plate, and both ends of the covering member in the width direction are corner blocks. Forming a ventilation passage between the corner block and the covering member by connecting to the open board on both sides of the roof, and connecting the upper end of the passage to a ventilation member provided at the top of the hut assembly. Ventilation structure with attic. 3. A field edge narrower than the corner block is fixed to a substantially middle portion of the upper surface of the corner block in the width direction substantially in parallel with the corner block, and the field board on one side of the corner block is passed through the field edge. The ventilation structure according to claim 2, characterized in that a waterproof sheet is provided so as to reach the other side board of the corner block, and the ventilation passage is formed between the corner block and the waterproof sheet.