JPH1162141A - Crown tile for ventilation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ventilate without infiltration of rainwater. SOLUTION: An attachment 19 for ventilation forming a ventilating flow path 36 in the lower section of a tile body 18 is disposed at the lower section of the tile body 18. The attachment 19 for ventilation is composed of a bottom plate, in which the central side is heightened, and a parting plate, which is installed to the upper section of the bottom plate and in which both side sections are inclined in the pitch direction of a roof, and side plates closing opening sections on both sides of a space section formed between the bottom plate and the tile body 18 and forming the ventilating flow path 36 are shaped continuously at both ends of the bottom plate. Ventilating openings 37 are formed at both side sections of the tile body 18 while an inflow port 39 to the ventilating flow path 36 is formed at the central section of the bottom plate. Accordingly, the inside air in an attic can be discharged to the outside of a building through the opening sections, the inflow port 39, the ventilating flow path 36 and the ventilating openings 37, and rainwater infiltrating from the ventilating openings 37 is dropped and flowed down onto both side sections of the parting plate and outside projecting sections and discharged to the outside from drain inlets 38 by forming notched grooves shaping the drain inlets 38 to lower end faces on both sides of the tile body 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof tile for ventilation which discharges inside air accumulated in an attic to the outside of a building.

[0002]

2. Description of the Related Art Conventionally, in a roof having such a ventilation function, a roof tile is laid on a roof base, and an opening for communicating the attic with the outside is opened in a ridge in the roof base. A plurality of ridge receiving brackets were erected, and a ridge was fixedly mounted on the ridge receiving brackets, and crown tiles were laid in series above the ridges, and were pierced from above and driven into the ridge. By fixing with long fixtures such as nails and screws, the inside air of the attic is discharged to the outside of the building through the opening and the gap between the roof tile and the cross tile.

[0003]

However, while the warm inside air tends to rise, the above-mentioned ridge ventilation structure has to be discharged from the gap between the roof tile and the cross tile, and the ventilation is required. There were issues that had to be solved, such as poor efficiency.

[0004]

SUMMARY OF THE INVENTION In view of the problem of poor ventilation efficiency based on the above prior art, the present invention provides a ventilation attachment at the lower part of a roof tile having the same form as a crown tile laid in series on a building. The ventilation attachment has an inner air introduction part having a pair of lowering parts integrated at the upper end and having an upper part in contact with a top part of the inner surface of the tile body, and a lowering part of the inner air introducing part. A lower end portion of the tile body is grounded on the upper surface of the outer end edge of the outer projecting portion, and a lowering portion on both sides of the outer projecting portion and the inside air introducing portion. And the openings on both sides of the space surrounded by the inner surface of the tile body are closed by side plates continuously formed above both sides of the outward projection to form a ventilation channel, and a ventilation opening is also provided in the tile body. As well as an inlet to the ventilation channel at the falling part of the inside air introduction part. At least one of the plurality of roof tiles is used as the above-mentioned roof tile when laying on the ridge, so that the inside air of the attic passes through the opening, the inlet, the ventilation channel, and the ventilation opening, and the outside of the building. To solve the above problems. In addition, rainwater enters by forming ventilation holes, but cutout grooves are formed on the lower end surfaces of both sides of the tile body to form drainage holes, and the outward projection of the ventilation attachment is inclined in the direction of the roof slope. A pair of drainboards are provided between the outwardly protruding portion and the inner surface of the tile main body, which are inclined in the gradient direction of the roof and whose inner end side is integrated with the inside air introduction portion, and a flow formed between the drainage plate and the bottom plate. By forming a ventilation flow path by connecting the downstream side of the road upstream part and the upstream side of the flow path downstream part formed between the draining board and the inner surface of the tile main body, rainwater entering from the ventilation opening can be drained and the outside. By dropping onto the protruding part and letting it flow down and discharging it to the outside from the drain port, it is possible to completely prevent rainwater from entering the roof foundation side.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS.
A roof board 5 and a roofing 4 are provided on the rafter 2 to form a roof base 5, and a plurality of hook bars 6 are arranged side by side at predetermined intervals in the flow direction on the roof base 5, and The shingle 7 is laid on the roof base 5 so as to be hooked. In the ridge section 8 of the roof basement 5, an attic 9
Along with opening an opening 10 that communicates with the outside, the opening 10 is closed with a chevron-shaped closing plate 11, and a plurality of ventilation holes 12 are formed in series in the central longitudinal direction of the closing plate 11. ing.
Also, a plurality of ridge receiving brackets are provided on the ridge portion 8 of the roof basement 5.
13 is erected, and a ridge 14 is fixedly mounted on the ridge receiving bracket 13. In addition, roof tiles 15, 15a ... are laid in series above the purlin 14 and the lower end surfaces of both sides of the roof tiles 15, 15a ...
The roof tiles 7 on both sides of the purlin 14 are grounded. The roof tiles 15 and 15a are passed through the purlin 14 from above.
It is fixed with a fixing tool 16 such as a long nail or a screw driven into it.

Further, at least one of the roof tiles 15, 15a... Is a ventilation roof tile 17, and the ventilation roof tile 17 is shown in FIGS.
As shown in the figure, the tile body has the same configuration as the other crown tiles 15, 15a ...
18 and a ventilation channel, which will be described later,
It comprises a ventilation attachment 19 forming 36, 36a. Note that the roof tile 17 for ventilation in FIG. 1 is laid so as to be mixed with the general roof tiles 15, 15a.
It is not necessary that all of the 15 and 15a ... be ventilation crown tiles 17;
All of 15, 15a... May be the roof tile 17 for ventilation. or,
Ventilation channels 36, 36a
Are provided at positions corresponding to the downstream side of the roof tile, and cutout grooves 21, 21a ... directed in the gradient direction of the roof are formed in the lower end surfaces of both sides of the tile body 18. Also, through holes 20,
In the case of 20a..., As shown in FIG. 6, a plurality is arranged in one horizontal row, as shown in FIG. 7, a plurality is arranged in two horizontal rows, or as shown in FIG. In other words, it is only necessary to form a horizontally long one at both sides, for example, as long as it is formed at a position that opens in the space portions 29 and 29a described later.
The shapes of the through holes 20, 20a are not limited to round holes.

The ventilating attachment 19 comprises a bottom plate 22 having a raised center and a partition plate 25 provided above the bottom plate 22.
The upper portion of the ventilation attachment 19 is in contact with the top side portion of the inner surface of the tile body 18.

The bottom plate 22 is formed by appropriately bending a thin metal plate. The bottom plate 22 has a gate-shaped inside air introduction portion 23 that opens downward, and extends outward from both lower edges of the inside air introduction portion 23. A pair of outwardly protruding portions that are continuously formed and inclined in the direction of the slope of the roof
The lower end surfaces of both sides of the tile main body 18 are grounded on the upper surfaces of the outer end portions of the outwardly projecting portions 24, 24a.
Further, both side portions of the inside air introduction portion 23 are formed as a pair of falling portions 26 and 26a, and the falling portions 26 and 26a are provided between upper ends of the falling portions 26 and 26a.
There is provided a connecting portion 26b that integrates 26a. The outwardly protruding portions 24, 24a are bent at an intermediate portion, and the upper portions 27, 27a are formed more steeply than the lower portions 28, 28a with respect to the bent portions. Further, the outer protruding portions 24, 24a, the lowering portions 26,
26a and a pair of spaces 29, 29a formed between the tile body 18
Pairs of side plates 30, 30, 30a, 30a closing both sides of the opening
Are continuously formed.

A pair of draining plates 31 and 31a are provided between the outwardly protruding portions 24 and 24a of the bottom plate 22 and the inner surface of the tile body 18, and the draining plates 31 and 31a are inclined in the direction of inclination of the roof. The rising portions 32, 32a are continuously formed above the inner edge, and a connecting portion 33 fixed above the connecting portion 26b of the inside air introducing portion 23 is integrally formed between the upper ends of the rising portions 32, 32a. To form a pair of draining plates 31 and 31a,
1, 31a are integrated with the inside air introducing portion 23 and the draining plates 31, 31a are separated from the outer end side of the tile body 18, and the draining plates 31, 31a, the rising portions 32, 32a and the connecting portion The partition plate 25 is formed by appropriately bending a thin metal plate so as to form 33. Also, both side portions of the connecting portion 33 in the partition plate 25,
Receiving portions 40 and 40a projecting from both side portions of the inside air introduction portion 23 and making contact with the inner surface of the tile body 18 are formed.

Then, the bottom plates 22, 23a and the drain plates 31, 31a
The downstream side of the flow path upstream portions 34, 34a formed therebetween, and the flow path downstream portions 35, 35 formed between the draining plates 31, 31a and the tile body 18.
The ventilation channels 36 and 36a communicating with the upstream side of a are formed. Also, the through holes 20, 20a... Of the roof tile body 18 are formed at positions where the draining plates 31, 31a are located below them, in other words, the draining plates 31, 31a are arranged below the through holes 20, 20a. ,
The through holes 20, 20a are formed as ventilation holes 37, which are outlets for inside air,
In addition, outwardly projecting portions 24, 24 of the bottom plate 22 of the ventilation attachment 19 are provided.
a and the cutout grooves 21, 21 a... of the roof tile body 18 form a drain port 38. Further, inflow portions 39, 39a are provided at portions corresponding to the most upstream portions of the ventilation flow channels 36, 36a (flow channel upstream portions 34, 34a) in the falling portions 26, 26a of the inside air introduction portion 23.

Also, a ventilation attachment shown in FIGS.
In another embodiment 19, the outer projections 24, 24 of the bottom plate 22 are provided.
The upper portions 27, 27a of a are formed in accordance with the inner surface of the tile body 18, and in this case, the draining plates 31, 31a are also formed in accordance with the inner surface of the tile body 18. Also, a pair of draining boards
The rising portions 32, 32a on the inner edge side of the draining plates 31, 31a are connected to the inside air introduction portion 23 without protruding both side portions of the connecting portion 33 of the inside air introduction portion 23 from the both side portions of the inside air introduction portion 23. The falling portions 26 and 26a are in close contact with each other. Further, locking pieces 41, 41a that are in close contact with the outer surfaces of both lower ends of the tile body 18 are continuously formed above the outer end edges of the outwardly projecting parts 24, 24a of the bottom plate 22, and the locking pieces 41, , 41a are formed with drain holes 42, 42a,... At positions corresponding to the notches 21, 21,.
a, a drain port 38 is formed by the cutout grooves 21, 21a of the tile body 18 and the drain holes 42, 42a of the locking pieces 41, 41a. or,
An insertion hole 43 for the fixture 16 is formed in the center of the ventilation attachment 19, and the insertion hole 43 vertically penetrates the connecting portion 26b of the inside air introducing portion 23 and the connecting portion 33 of the pair of drainage plates 31, 31a.

Further, in the ventilation attachment 19 in the above-described two patterns, the inside air of the attic 9 is discharged through the through holes 20, 20a,. It is composed of the bottom plate 22 and the partition plate 25 so that the rainwater that has flowed into the ventilation attachment 19 side from 20a is discharged from the cutout grooves 21, 21a of the tile body 18 as the drain port 38, but is limited to this type. Although not shown, not shown, there is no partition plate 25, only the notch grooves 21, 21a... Are formed in the tile body 18, and the inside air of the attic 9 is discharged by using the notch grooves 21, 21a. In short, a ventilation opening 37 is formed on the side of the tile body 18 corresponding to the downstream side of the ventilation flow passages 36 and 36a in the ventilation attachment 19, and the ventilation hole 37 is formed therethrough.
In the case of 20a, the draining plates 31, 31a inclined in the direction of the slope of the roof may be provided below the through holes 20, 20a. In this case, the cutout grooves 21, 21a of the tile body 18 are provided. … Becomes the drain port 38.

In the case of the roof tile 17 for ventilation, it is required that the roof tile 17 be composed of a roof tile body 18 and a ventilation attachment 19.
Regardless of whether they are integrated or separate, if they are separate, the tile body after installing the ventilation attachment 19
It is possible to install 18 or to attach the ventilation attachment 19 to the tile body 18.

As shown in FIG. 9, a sealing material 44 is provided between the lower end surfaces on both sides of the tile body 18 and the outwardly projecting portions 24 and 24a of the bottom plate 22.
May be interposed to improve waterproofness and wind resistance.
Further, the cross tile 7 in the above embodiment is a flat tile, but may be a Japanese tile. In this case, although not shown, a face door portion is provided below the outer end edges of the outwardly projecting portions 24 and 24a of the bottom plate 22. (Not shown) is attached to the tile body 18 with the ventilation attachment 19
It is arranged at the bottom. The opening 10 formed in the ridge portion 8 of the roof basement 5 is formed by cutting the ridge portion 8 in which the base plate 3 and the roofing 4 are stretched without gaps with a circular saw or the like. It is a gap formed in the ridge portion 8 by not stretching the base plate 3 and the roofing 4 to the ridge portion 8. In the above embodiment and the drawing, the opening portion 10 is closed by the closing plate 11, but it is closed. The plate 11 may not be provided.
In the drawings, the roof tiles 15, 15a... Have a triangular mountain shape, but may be of any commercially available form.

Next, the operation of the ventilation roof tile according to the present invention will be described. The inside air accumulated in the attic 9 flows into the ridge 8 through the opening 10 (the vent 12 of the closing plate 11), and also flows into the ventilation attachment 19 through the inlets 39 and 39 a of the ventilation attachment 19. Flows into the ventilation flow paths 36, 36a (flow path upstream parts 34, 34a), passes through the ventilation flow paths 36, 36a, and ventilates downstream of the ventilation flow paths 36, 36a (flow path downstream parts 35, 35a). It is discharged outside the building through the mouth 37. Further, the above operation is promoted by the wind blowing on the roof, and specifically, by the wind passing outside the ventilation opening 37, the spaces 29 and 29a (the ventilation passage
The inside of the attic 9 is sucked into the spaces 29, 29a (ventilation passages 36, 36a) and passes through the ventilation passages 36, 36a and the ventilation opening 37. Merges with the wind and is discharged outside the building.

The rainwater is supplied to the ventilation hole 37 (the through hole 2
0, 20a ...), but falls from the ventilation port 37 onto the draining plates 31, 31a and flows down.
a It falls from the tip onto the outwardly protruding portions 24, 24a of the bottom plate 22, flows down, and is discharged to the outside of the building through the drain port 38.

[0017]

In short, the present invention is to lay a roof in series on a ridge 8 provided on a ridge 8 of a roof base 5 having an opening 11 through a ridge receiving bracket 13 and to lower a lower end surface on both sides of the ridge 14. The roof tiles 15 and 15a are fixed to the purlin with long fixing tools 16 that are grounded on the side tiles 7 on both sides of the roof and penetrated from above, and are driven into the purlin 14. In the same manner, roofing can be laid, and a ventilation attachment 19 that forms ventilation passages 36 and 36a at the lower part of the tile main body 18 is provided below the tile main body 18, and a ventilation opening 37 is provided in the tile main body 18. While forming
Attachment to ventilation passages 36 and 36a in ventilation attachment 19
Since the roof tiles 18 and the ventilation attachments 19 are integrated and roofed, the ventilation channels 36 and 36a, which are isolated from the inside and outside of the building, are provided by the ventilation openings 37 and the inlets 39 and 39a. It is possible to communicate with the inside and outside, that is, it is possible to secure an exhaust path for inside air, and thus to provide the completed roof with a ventilation function.

Also, the ventilation attachment 19 is composed of a bottom plate 22 having a raised center and a partition plate 25 provided above the bottom plate 22 and having both sides inclined in the direction of the inclination of the roof. According to this, the inside air that has risen through the opening 10 of the roof base 5 can be guided to the inlets 39 and 39a, and the rainwater that has fallen from both sides of the partition plate 25 described below flows down in the direction of the slope of the roof. Then, it is possible to discharge the water to the outside of the building from the drain port 38, and according to the partition plate 25, the rainwater that has entered from the ventilation port 37 formed in the tile body 18 described later is caused to flow down in the direction of the slope of the roof. Can be done.
Also, at both ends of the bottom plate 22, the openings on both sides of the space portions 29, 29a formed between the bottom plate 22 and the tile body 18 are closed to close the ventilation passages 36, 36.
a, the side plates 30, 30, 30a, 30a are continuously formed, and ventilation holes 37 are formed on both sides of the tile main body 18.
Drain holes 38 are formed at the lower end sides of both sides of 18, so this bottom plate
According to 22, isolated spaces 29, 29
a, that is, the ventilation flow paths 36 and 36a can be reliably formed.

The ventilation attachment 19 has a pair of falling portions 26 and 26a having an upper end integrated with each other.
The inside air introduction part 23 whose upper part is in contact with the top side part of the inner surface of the tile main body 18 and the roof part which is continuously formed at the lower ends of the falling parts 26 and 26a of the inside air introduction part 23 are inclined in the gradient direction of the roof. Outer protruding portions 24, 24a, outer protruding portions 24, 24a, falling portions 26, 26a of the inside air introduction portion 23, and a space portion 28 surrounded by the inner surface of the tile body 18,
A bottom plate 22 comprising side plates 30, 30, 30a, 30a for closing both side openings of the roof 28a, and a roof provided between the tile body 18 and the outwardly protruding portions 24, 24a, which is inclined in the gradient direction of the roof and has an inner end side. Is constituted by a pair of draining plates 31 and 31a integrated with the inside air introduction part 23, and the roof base 5 is formed by the outwardly projecting parts 24 and 24a.
The inside air that has risen through the opening 10 can be guided into the inside air introduction unit 23, and the draining plates 31, 31a to be described later.
Rainwater that has fallen from the outer edge of the roof can flow down the roof in the direction of the slope and drain out of the building from the drain port 38. And can be vented to
And drain ports 31, 31a between the inlets 39, 39a,
It is possible to prevent rainwater that has entered through the vent 37 from entering through the inlets 39 and 39a. In addition, since the lower end surfaces on both sides of the tile main body 18 are grounded on the upper surfaces of the outer edge portions of the outer projecting portions 24 and 24a,
The rainwater flowing down on the outwardly protruding portions 24, 24a
The water can be reliably discharged to the outside of the building from the drain port 38 below the lower part 18. Also, the draining plates 31, 31a and the outwardly projecting portions 24, 24a
The downstream side of the flow path upstream portions 34, 34a formed therebetween, and the flow path downstream portion 3 formed between the draining plates 31, 31a and the inner surface of the tile body 18.
Since the ventilation channels 36, 36a are formed by communicating the upstream sides of 5, 35a, the rainwater flowing down on the draining plates 31, 31a can be dropped on the outwardly projecting portions 24, 24a below them. ,
The inside air flowing from inflow ports 39 and 39a, which will be described later, is supplied to the ventilation port 37 through the flow path upstream sections 34 and 34a and the flow path downstream sections 35 and 35a.
It can be discharged outside the building. Since the through holes 20, 20a, which are the ventilation holes 37, are formed on both sides of the tile body 18, the ventilation holes 37 can be formed at a position higher than the gap between the cross tile 7 and the crown tile 17 for ventilation. Can be improved. Further, since notch grooves 21, 21 a forming a drain port 38 are formed on both lower end surfaces of the tile body 18, the notch grooves 21, 21 are formed.
The drainage port 38 is formed by the outer projections 24 and 24a of the bottom plate 22 so that rainwater that has entered the inside of the tile body can be reliably discharged to the outside of the building. In addition, ventilation passage 36, 36a
Inlets 39, 39a are connected to the lowering sections 26, 26a of the inside air introduction section 23.
Therefore, even if rainwater flows backward through the outwardly projecting portions 24, 24a of the bottom plate 22, the inlets 39, 39 are located at higher positions.
Since a is formed, intrusion of rainwater from the inlets 39 and 39a can be almost completely suppressed. Therefore,
If such a roof tile 1 for ventilation is used, a ventilation building structure excellent in ventilation and drainage functions can be obtained.

A rising portion 3 is formed by continuously forming a pair of draining plates 31 and 31a above the inner ends of the draining plates 31 and 31a.
2, 32a are integrated at a connecting portion 33 provided between upper end portions thereof, and the connecting portion 33 is integrated with an upper portion of the inside air introducing portion 23, and
Since it is in contact with the inner surface of 18, in short, the two thin metal plates are appropriately bent, and if they are integrated, the ventilation attachment 19 can be formed.
19 can be easily manufactured.

Further, the locking pieces 41, 41a are formed continuously above the outer edges of the outwardly protruding portions 24, 24a on both lower ends of the outer surface of the tile body 18, so that such locking pieces are provided. 41, 41a
The ventilation attachment 19 can be fixed to the roof tile body 18 by pressing the roof attachment 18 against the roof tile body 18, so that a separate fixing work when the ventilation attachment 19 is attached to the roof tile body 18 can be eliminated, Also, drain holes 42, 42a are provided at positions corresponding to the notches 21, 21a... Of the tile body 18 in the locking pieces 41, 41a.
Are provided, rainwater that has passed through the notched grooves 21, 21a can be reliably discharged to the outside of the building without being stopped by the locking pieces 41, 41a.

Further, since the sealing material 44 is interposed between the outer edge portions of the outwardly projecting portions 24 and 24a and the lower end surfaces on both sides of the tile main body 18, the integration of the tile main body 18 and the ventilation attachment 19 is improved. The practical effect is extremely large, for example, the waterproofness and wind resistance can be improved.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a roof in which a roof tile with ventilation is mixed and laid.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an exploded perspective view of the ventilation attachment of FIG. 1;

FIG. 4 is a cross-sectional view illustrating a roofing state of a crown tile for ventilation according to another embodiment.

FIG. 5 is an exploded perspective view of the ventilation attachment of FIG. 4;

FIG. 6 is a perspective view of a tile body.

FIG. 7 is a perspective view showing another embodiment of FIG. 6;

FIG. 8 is a perspective view showing another embodiment of FIG. 6;

FIG. 9 is an enlarged sectional view of a main part in a state where a sealing material is interposed between a tile body and a ventilation attachment.

[Explanation of symbols]

 18 Tile body 19 Ventilation attachment 20, 20a… Through hole 21, 21a… Notch groove 23 Inside air introduction part 24, 24a Outward projection part 26, 26a Falling part 29, 29a Space part 30, 30, 30a, 30a Side plate 31 , 31a Drainer plate 32, 32a Start-up part 33 Connecting part 34, 34a Flow path upstream part 35, 35a Flow path downstream part 36, 36a Ventilation flow path 37 Ventilation port 38 Drain port 39, 39a Inflow port 41, 41a Locking piece 42, 42a… drain hole 44 sealing material

Claims (6)

[Claims] 1. A roof is laid in series above a purlin provided via a ridge receiving bracket on a ridge of a roof base having an opening, and both lower end faces are grounded to a cross tile on both sides of the purlin. A crown tile that is fixed to a purlin with a long fixing tool penetrated from above and driven into the purlin, and a ventilation attachment that forms a ventilation flow path in a lower part of the tile main body is provided at a lower part of the tile main body. A ventilation roof tile, wherein a ventilation opening is formed in the tile body, and an inlet for a ventilation flow path is provided in the ventilation attachment. 2. A ventilation attachment comprising a bottom plate having a raised center and a partition plate provided above the bottom plate and having both sides inclined in the direction of the slope of the roof, and a bottom plate and a tile at both ends of the bottom plate. Close the openings on both sides of the space formed between the main bodies to continuously form side plates forming ventilation channels, form ventilation holes on both sides of the tile body, and provide ventilation channels in the center of the bottom plate. The roof tile for ventilation according to claim 1, wherein an inflow port is provided. 3. A roof is laid in series above a purlin provided via a ridge receiving bracket on a ridge of a roof base having an opening, and both lower end faces are grounded to a cross tile on both sides of the purlin. A crown tile fixed to a purlin with a long fixing tool penetrated from above and driven into the purlin, where a ventilation attachment is provided at the bottom of the tile body, and the ventilation attachment is integrated at the top end An inside air introduction part having a pair of falling parts and an upper part abutting on the top side part of the inner surface of the tile body, and a slope formed in a lower end part of the falling part of the inside air introduction part, which is inclined in a gradient direction of the roof. A bottom plate comprising an outer projecting portion, an outer projecting portion, a lowering portion of an inside air introduction portion, and side plates closing both side openings of a space surrounded by an inner surface of the tile body, and a tile body and an outer projecting portion. Incline in the direction of the slope of the roof and set the inner end It consists of a pair of draining plates integrated into the introduction part, grounds both lower end surfaces of the tile body on the upper surface of the outer edge of the outwardly projecting portion, and the upstream of the flow path formed between the draining plate and the outwardly projecting portion The downstream side of the part, the ventilation flow path is formed by communicating the upstream side of the flow path downstream part formed between the draining board and the inner surface of the tile main body, and a through hole that is a ventilation port on both sides of the tile main body, A roof tile for ventilation, wherein a notch groove forming a drain port is formed on both lower end surfaces, and an inlet to a ventilation flow passage is formed in a falling part of an inside air introduction part. 4. A pair of draining plates are integrated with a connecting portion provided between upper ends of rising portions continuously formed above an inner end of the draining plate, and the connecting portions are integrated with an upper portion of the inside air introducing portion. 4. The roof tile for ventilation according to claim 3, wherein the roof tile is made into contact with an inner surface of the tile main body. 5. A locking piece is formed continuously above the outer edge of the outwardly protruding portion so as to be in close contact with the outer surface of the tile body.
The ventilation roof tile according to claim 3 or 4, wherein a drain hole is provided at a position of the locking piece corresponding to the notch groove of the tile main body. 6. The roof tile for ventilation according to claim 3, wherein a sealing material is interposed between an outer edge of the outwardly projecting portion and lower end surfaces on both sides of the tile main body.