JP5224653B2 - Field plate ventilator and attic ventilation method - Google Patents

Description

  The present invention relates to a field plate ventilator and a hut ventilator using the ventilator, and more specifically, a field plate ventilator that is difficult to allow rainwater to enter from a vent and is easy to manufacture and install, and the ventilator. It relates to the hut ventilation method.

Conventionally, as a ventilation device using this kind of field plate, there is an attic ventilation method in which an opening is provided in the roof field plate, an attic ventilation device is covered on the opening, and tiles are spread from above. It is adopted (see Patent Document 1).
According to this, the air in the attic is discharged between the field board and the tile through the attic ventilation device, and further discharged into the outside air through the gap between the tiles.
JP 2001-20480 A

However, the attic ventilation device and the attic ventilation method described above have a drawback that rain leakage is likely to occur. That is, as shown in FIG. 13, in the normal case, the baseboard 7 is laid with a waterproof underlaying material 7a such as asphalt roofing and rubber through roofing for waterproofing. In order to provide the opening 8 in the material 7a, rainwater enters from here.
More specifically, in this attic ventilation method, when rain falls and rainwater enters between the tiles T, the rainwater that has flowed over the underlaying material 7a from the rear (upper) of the roof is covered with the attic ventilation. It flows over the device A, drops as a water droplet from the front end of the device A onto the lower material 7a, and flows as it is forward (downward) of the lower material 7a (see the broken line arrow in FIG. 13).
Therefore, on windy days, wind enters between the front tiles and the roof tiles, and there is an air flow that flows from the front of the roof to the rear between the tiles and the underlaying material on the baseboard. In some cases, rainwater may enter and enter the room through the opening 8 (see the dashed line arrow in FIG. 13).

  In view of such circumstances, the present invention solves the above-mentioned problems of the prior art, not only makes it difficult for rainwater to enter from the opening, but also blocks intrusion of rainwater between the front tile and the tile, It is an object of the present invention to provide a field plate ventilator that is easy to construct and a roof ventilation method using the ventilator.

The present invention according to claim 1 for solving the above-mentioned problems is a field plate ventilation apparatus having a bottom surface portion, a rear side surface portion, an upper surface portion, and a front side surface portion, and the bottom surface portion includes the field plate ventilation. A fixing part for fixing the device to the base plate is provided, the rear side part is erected on the bottom part, the upper part is laterally provided on the rear side part, and the front side part is suspended from the upper part. Both side ends formed by the side surface portion, the upper surface portion, and the front side surface portion are opened, and a gap of 5 to 10 mm is generated between the front end portion of the front side surface portion and the lower covering material on the base plate. It is a field plate ventilator characterized by being provided as follows .

  The invention according to claim 2 is characterized in that the eaves part extends beyond the front side surface part on the upper surface part or the eaves part is provided horizontally on the front side surface part. The contents are equipment.

  The invention according to claim 3 is the field plate ventilator according to claim 1 or 2, characterized in that a sealing material for water stop is provided on the bottom surface of the bottom surface.

  The invention which concerns on Claim 4 provides an opening part in a field plate and a lower covering material, and the upper surface part of the field plate ventilation apparatus of any one of Claims 1-3 opens in the rear-end side of this opening part. The bottom part is fixed so as to cover the part, and the shed ventilation method is characterized by controlling the rainwater flowing down from the rear on the lower covering material to the side of the field plate ventilator.

  The invention according to claim 5 is characterized in that the roof side ventilation method according to claim 4 is characterized in that the opening side end is 50 to 100 mm inside the field plate ventilation device side end.

  The invention according to claim 6 provides a waterproof bank between the rear end of the opening and the bottom surface, further provides a waterproof bank between the opening side end and the field plate ventilation device side end, or further opens the opening. The roof ventilation method according to claim 4 or 5, wherein a waterproof bank is provided between the front end and the front side surface.

  The invention according to claim 7 is characterized in that the front side surface portion and the rear end of the front roof tile are in contact with each other, and the front end of the upper surface portion is above the rear end of the front roof tile. The hut ventilation method described in item 1 is included.

  The invention according to claim 8 is characterized in that the roof back ventilation method according to any one of claims 4 to 7, wherein the eaves portion is disposed so as to cover the roof tile below.

In the field board ventilator of the present invention, since the rear side surface part is erected from the bottom surface part, the rain water flowing down from the rear (upper side) on the underlaying material bypasses the side part of the field plate ventilation apparatus, and the opening part There is an advantage of not flowing in.
In addition, since the front side surface portion is suspended from the upper surface portion, there is an advantage that rain water that has come in through the gap between the front (lower) roof tile and the roof tile is stopped by the front side surface portion and does not enter the interior through the opening. is there.
Further, since the structure is simple, there is an advantage that it can be easily manufactured by extrusion molding or the like, and an inexpensive baseboard ventilation device can be provided.

  In the field plate ventilator according to the second aspect of the present invention, since the eaves portion is provided, the arrangement of the eaves portion so as to cover the lower roof tile prevents the rainwater from entering the inside. There is an advantage that.

  Since the field board ventilation apparatus of the invention which concerns on Claim 3 is provided with the sealing material for water stop in the bottom face lower surface, the rainwater which has flowed from back does not enter between a lower covering material and a bottom face part, but to an opening part There is an advantage that inflow of rainwater can be prevented more reliably.

According to a fourth aspect of the present invention, there is provided a roof back ventilation method in which an opening is provided in the field board and the lower covering material, and the field board ventilation according to any one of claims 1 to 3 is provided on a rear end side of the opening. The bottom part is fixed so that the top part of the device covers the opening, and the rainwater flowing down from the rear side of the flooring material is controlled to the side of the field plate ventilator and before it is suspended from the top part. There is an advantage that rainwater does not flow from the opening because the side surface blocks rainwater that has entered from the gap between the roof tiles.
Furthermore, since the structure is simple, there is an advantage that it can be easily installed by a method such as hitting the bottom surface portion with a nail onto a base plate (via a lower covering material).

  In the hut ventilation method of the invention according to claim 5, since the opening side end is 50 to 100 mm inside of the field plate ventilation device side end, rainwater is blown even if a cross wind blows between the roof tile and the underlaying material. This has the advantage that it does not reach the opening and does not flow indoors.

  In the roof ventilation method of the invention according to claim 6, since a waterproof bank is provided in part or all of the periphery of the opening, rain water should be generated between the bottom part and the underlaying material on the base plate. Even if it leaks out, it is blocked by this waterproof bank, and the rainwater flow bypasses the side of the opening and has the advantage that it does not flow indoors.

  In the roof ventilation method of the invention according to claim 7, since the front end of the upper surface is above the rear end of the front tile, a step is generated between the roof tile and the field plate ventilation device (the upper surface portion thereof). There is an advantage that rainwater that has flowed in from the gap is pushed back to the outside by this step, and intrusion into the inside is prevented.

  The roof ventilation method of the invention according to claim 8 has an advantage that the intrusion of rainwater flowing in between the roof tiles is prevented by arranging the heel portion so as to be covered on the roof tile below.

Next, the field board ventilation apparatus and the hut ventilation method of this invention are demonstrated based on drawing.
1 is a perspective view of Example 1, FIG. 2 is a sectional view taken along line AA of Example 1, FIG. 3 is a perspective view of Example 2, and FIG. 4 is a sectional view taken along line AA of Example 2. 5 is a cross-sectional view of the third embodiment, and FIG. 6 is a cross-sectional view of the fourth embodiment.
7 is a cross-sectional view in the flow direction of the roof of Example 5, and FIG. 8 is a cross-sectional view in the direction perpendicular to the flow direction of the roof.
9 is a plan view of an opening in the sixth embodiment, FIG. 10 is a sectional view of the seventh embodiment, FIG. 11 is a sectional view of the eighth embodiment, and FIG. 12 is a sectional view of the ninth embodiment. FIG. 13 is a sectional view of a conventional example.

In the figure, 1 is a field plate ventilator of the present invention, 2 is a bottom surface part, 2a is a fixing part, 2b is a sealing material for water stop, 3 is a rear side surface part, 4 is a top surface part, 4a is the front end of the upper surface part, 5 is the front side surface part, 6 is the end of the field plate ventilator, 7 is the field plate, 7a is the underlaying material, 8 is the opening, and 8a is the rear end of the opening. 8b is the opening side edge, 8c is the opening front edge, 9 is the waterproof bank, 9a is the rear waterproof bank, 9b is the side waterproof bank, 9c is the front waterproof bank, and 10 is the buttock. , T represents the roof tile, and Ta represents the rear end of the roof tile.
A represents the field board ventilation apparatus of a prior art example.

First, the field board ventilation apparatus of this invention is demonstrated.
The field board ventilation apparatus 1 of this invention consists of the bottom face part 2, the rear side surface part 3, the upper surface part 4, and the front side surface part 5, as shown in FIG. As shown in FIG. 2, a fixing portion 2 a is provided on the bottom surface portion 2. The fixing portion 2a provided in FIG. 2 is a hole drilled in the bottom surface portion 2. By fixing the fixing portion 2a with a fixing means such as a nail or a screw, the base plate ventilator 1 is placed on the base plate 7 (underlaying material). Via 7a). In the present invention, any method can be adopted as long as it can fix the field board ventilation device 1 to the field board 7.

  As shown in FIGS. 3 and 4, it is preferable to provide a water sealing material 2 b on the bottom surface of the bottom surface portion 2. Thereby, when the field board ventilation apparatus 1 of this invention is attached to the field board 7 via the lower covering material 7a, this sealing material 2b for water stop is interposed between the bottom face part 2 and the lower covering material 7a. Thus, it is possible to prevent rainwater from leaking out between the bottom surface portion 2 and the lower covering material 7a.

As the material for the sealing material 2b for water stop, EPDM sealer, flexible urethane foam, polyethylene foam, butyl rubber sheet and the like are preferable. The size of the sealing material 2b for water stop is set to a size that can be applied over the entire length of the bottom surface of the bottom surface portion 2 so that rainwater does not enter between the bottom surface portion 2 and the base plate 7. Preferably, the entire bottom surface of the bottom surface portion 2 is covered with a water sealing material 2b. Here, the thickness of the sealing material 2b for water stop is preferably about 1 to 3 mm.
In addition, it is preferable to affix the sealing material 2b for water stop to the lower surface of the bottom face part 2 with an adhesive tape, an adhesive, etc., and an acrylic adhesive, a butyl rubber adhesive, etc. are used suitably as such an adhesive.

  The rear side surface portion 3 is erected on the bottom surface portion 2. 1 and 2, the rear side surface portion 3 is suspended from the bottom surface portion 2, but the angle between the bottom surface portion 2 and the rear side surface portion 3 is not particularly limited. Similarly, the height of the rear side surface portion 3 is not limited. That is, the angle and length may be such that the rainwater flowing down on the lower covering material from the rear does not get over when attached to the base plate 7 via the lower covering material 7a.

  The upper surface portion 4 is laterally provided from the rear side surface portion 3. In the present invention, this portion covers the opening 8 and distributes the air rising from the indoor through the opening 8 to both open sides, and rainwater entering from the gap between the front tile and the roof tile This prevents entry into the opening 8.

  The front side surface portion 5 is suspended from the upper surface portion 4. Unlike the conventional example shown in FIG. 13, the air from the back of the hut is not discharged from the front surface side, so the distance from the lower facing material 7 a on the field board 7 to the lower end of the front side surface portion 5 is particularly Although it is not limited, if the interval is too large, the effect of blocking wind and rain that has entered from between the roof tiles will be reduced. Therefore, it is preferable to leave a gap of about 5 to 10 mm so that rainwater that has entered between the front side surface portion 5 and the front end 8c of the opening 8 flows down. If necessary, in order to prevent rainwater from entering from the front side surface portion 5, it may be fixed to the base plate 7 at the lower portion of the front side surface portion 5.

  Note that the rear side surface portion 3, the upper surface portion 4, and the front side surface portion 5 do not have to be clearly distinguished on the configuration of the field board ventilation device 1. For example, it may be provided continuously as in the third embodiment shown in FIG. 5, and it may be unknown from where to where it corresponds to the rear side surface portion 3, the upper surface portion 4, and the front side surface portion 5. In this case, the part that moves the rainwater flowing from the rear side substantially is the rear side surface part 3, the part that substantially covers the opening 8 is the upper surface part 4, and the rainwater flying from the front is substantially The portion to be blocked is the front side surface portion 5.

  The field board ventilation apparatus 1 of this invention can provide the collar part 10, as shown in FIG. In the drawing, an example is shown in which the flange portion 10 extends beyond the front side surface portion 5 on the upper surface portion 4, but as shown by a broken line, it is laterally extended outward from an arbitrary position of the front side surface portion 5. It is also possible to set up. Horizontal installation is not necessarily limited to the horizontal direction, and includes an oblique direction (any of obliquely upward and obliquely downward). By disposing the flange 10 so as to be covered on the lower roof tile, rainwater from between the front roof tile and the roof tile can be effectively prevented from entering the opening.

Although the raw material of the field board ventilation apparatus 1 in this invention will not be restrict | limited especially if it is a material which is not eroded by rainwater, Plastic and metal are preferable from the surface of a moldability (formability) and durability.
The plastic used in the present invention is not particularly limited, and examples thereof include polyolefin resins such as polyethylene and polypropylene, polystyrene resins, vinyl chloride resins, polyamide resins, polyester resins, ABS resins, and AS resins.
The metal used in the present invention is not particularly limited, and examples thereof include iron, copper, aluminum, and stainless steel.

  In addition, since the field board ventilation apparatus 1 of this invention can also be made into the elongate structure which has the same cross section in the whole, it can manufacture easily by extrusion molding and provides an inexpensive field ventilation apparatus. I can do it. It can also be obtained by bending a single plate.

Next, the roof ventilation method of the present invention using the above-mentioned field board ventilation device will be described.
In the present invention, as shown in FIG. 7, first, an opening 8 is provided in the field board 7 and the lower covering material 7 a, and the field board ventilation device 1 is covered in the opening 8.

  Although the magnitude | size of the opening part 8 is not specifically limited in this invention, It is preferable to provide one or more vertically long holes about 20-100 mm in width and about 100-400 mm in length.

  As shown in FIG. 7, in the present invention, the field plate ventilator 1 is covered at the opening 8. That is, on the rear end side of the opening portion 8, the bottom surface portion 2 is fixed to the field plate 7 via the lower covering material 7 a so that the upper surface portion 4 of the field plate ventilation device 1 covers the opening portion 8. Fix by means.

  As indicated by the chain line arrows in FIG. 8, in the present invention, air in the back of the hut is mainly exhausted from both side ends 6 of the field board ventilation device 1. A part of the air is exhausted from the lower gap of the front side face part 5 or when the front side face part 5 is fixed to the base plate 7 from both sides of the front side face part 5 to the gap between the front tile and the roof tile. In addition, as shown with the broken-line arrow in FIG. 9, although the rainwater which flowed down from the rear side of the field board ventilation apparatus 1 along the lower covering material 7a flows through the side of the field board ventilation apparatus 1, FIG. Unlike the conventional example shown, the rainwater is not dripped onto the underlaying material but flows down over the underlaying material 7a on the base plate 7, so that it is not easily affected by the wind. There is no flow. If the field board ventilator 1 is provided so as to protrude 50 to 100 mm outward from the opening 8 and the opening side end 8b is located 50 to 100 mm inside from the field board ventilation apparatus side end 6, a strong cross wind is generated. Even if the flow path of rainwater changes due to blowing, rainwater does not flow into the opening 8, which is more preferable.

In the present invention, it is preferable to provide a waterproof bank 9 around the opening 8. It is most preferable to provide the entire periphery of the opening 8 as in Example 5 shown in FIG. 9, but depending on the situation, between the opening rear end 8a and the bottom surface part 2 (rear waterproof bank 9a), the opening side end 8b, It can also be provided between the field plate ventilator side end 6 (side waterproof bank 9b) and between the opening front end 8c and the front side surface part 5 (front waterproof bank 9c) individually or in combination.
In the case where the rear waterproof bank 9a is provided, even if rainwater leaks from the space between the bottom portion 2 and the underlaying material 7a on the base plate 7, it can be blocked (dotted line arrow in FIG. 9). reference). In addition, when the side waterproof bank 9b is provided, rainwater does not flow into the opening 8 even when a strong crosswind blows and the flow path of the rainwater changes. Furthermore, when the front waterproof bank 9c is provided, even when strong wind blows between the tiles in front of the roof and rainwater is pushed up against the roof slope, it can be blocked. As a result, it is possible to completely prevent rainwater from flowing into the opening 8.

  The material of the waterproof bank 9 is not particularly limited as long as it can block rainwater, and for example, EPDM sealer, flexible urethane foam, polyethylene foam and the like are preferable. Here, the height of the waterproof bank 9 is suitably about 5 to 10 mm and the width is about 10 to 30 mm. The waterproof bank 9 is preferably affixed on the underlaying material 7a with an adhesive tape, an adhesive, or the like. As such an adhesive, an acrylic adhesive, a butyl rubber adhesive, or the like is suitably used.

  In the present invention, as shown in FIG. 10, a water sealing material 2 b may be interposed between the field board ventilation device 1 and the lower facing material 7 a on the field board 7. Thereby, it is possible to prevent rainwater from leaking out between the bottom surface portion 2 and the lower covering material 7a.

As the material for the sealing material 2b for water stop, EPDM sealer, flexible urethane foam, polyethylene foam and the like are preferable. The size of the sealing material 2b for water stop is set to a size that can be applied over the entire length of the bottom surface of the bottom surface portion 2 so that rainwater does not enter from between the bottom surface portion 2 and the lower covering material 7a on the base plate 7. Preferably, the entire bottom surface of the bottom surface portion 2 is covered with a water sealing material 2b. Here, the thickness of the sealing material 2b for water stop is preferably about 1 to 3 mm. The water-stop sealing material 2b is preferably affixed to the bottom surface portion 2 with an adhesive tape, an adhesive, or the like. As such an adhesive, an acrylic adhesive, a butyl rubber adhesive, or the like is suitably used. In addition, it is also possible to use the caulking agent containing a tube at the time of construction.
Of course, when a field plate ventilator provided with a sealing material for water stop on the bottom surface of the bottom surface is used, the above work at the time of construction is unnecessary.

  In the present invention, as shown in FIG. 11, the front side surface portion 5 and the rear end Ta of the front roof tile can be brought into contact with each other, and the upper surface portion front end 4a can be positioned above the rear end Ta of the front roof tile. As a result, rainwater that has entered from between the roof tiles T can be pushed back and prevented from entering the inside (see the broken line arrow in FIG. 11). In addition, it is preferable to arrange the front side surface portion 5 and the rear end Ta of the front roof tile so that rainwater does not enter under the roof tile T from here. More preferably, a sealing material is interposed between the front side surface portion 5 and the rear end Ta of the roof tile. In addition, the rainwater pushed back to the front usually follows gravity and flows down toward the front of the roof.

Example 1
FIG.1 and FIG.2 shows the field board ventilation apparatus 1 which concerns on Example 1. FIG.
The field board ventilation apparatus 1 according to the first embodiment includes a bottom surface portion 2, a rear side surface portion 3, an upper surface portion 4, and a front side surface portion 5. The bottom surface portion 2 is provided with a hole for passing a nail or a screw as the fixing portion 2a. A rear side surface portion 3 is suspended from the bottom surface portion 2, an upper surface portion 4 is laterally disposed from the rear side surface portion 3, and a front side surface portion 5 is suspended from the front end of the upper surface portion 4.

  Since the field board ventilation apparatus 1 of Example 1 is a long structure having the same cross section in its entirety, it can be easily manufactured by extrusion molding or the like. Further, by covering the field board ventilation device 1 of the present invention with the opening 8 provided in the field board 7 and the lower roofing material 7a, rainwater does not enter from the opening 8, and thus the ventilation of the back of the hut can be suitably performed.

Example 2
FIG.3 and FIG.4 shows the field board ventilation apparatus 1 which concerns on Example 2. FIG.
The field board ventilation apparatus 1 according to the second embodiment includes a bottom surface portion 2, a rear side surface portion 3, an upper surface portion 4, and a front side surface portion 5. The bottom surface portion 2 is provided with a hole for passing a nail or a screw as the fixing portion 2a. Further, a water-stop sealing material 2 c is attached to the back surface of the bottom surface portion 2. A rear side surface portion 3 is suspended from the bottom surface portion 2, an upper surface portion 4 is laterally disposed from the rear side surface portion 3, and a front side surface portion 5 is suspended from the front end of the upper surface portion 4.

  Since the field board ventilation apparatus 1 of Example 2 is a long structure having the same cross section in its entirety, it can be easily manufactured by extrusion molding or the like. Further, by covering the opening 8 provided on the baseboard 7 with the baseboard ventilator 1 of the present invention, rainwater does not enter from the opening 8 and ventilation of the back of the hut can be suitably performed. Furthermore, when the field plate ventilator 1 is attached to the field plate 7, since the water sealing material 2b is interposed between the bottom surface 2 and the lower covering material 7a, the leakage of rainwater from here is more effective. Is prevented.

Example 3
The field board ventilation apparatus 1 which concerns on FIG. 5 at Example 3 is shown.
The field board ventilator 1 of the third embodiment includes the bottom surface portion 2, the rear side surface portion 3, the upper surface portion 4, and the front side surface portion 5, as in the first embodiment. A front side surface portion 5 is provided in a series of semi-cylindrical shapes. Therefore, it is not possible to clearly distinguish from where to where corresponds to the rear side surface portion 3, the upper surface portion 4, and the front side surface portion 5, but the rain water flowing from the rear of the field plate 7 is pushed to the side of the field plate ventilation device 1. And the opening 8 can be covered, and water droplets flying from the front can be prevented. Therefore, the rear side 3, the top 4, and the front 5 are substantially provided.

  Since the field board ventilator 1 of the third embodiment is a long structure having the same cross section as in the first embodiment, it can be easily manufactured by extrusion or the like. In addition, by covering the field board ventilation device 1 of the present invention with the opening 8 provided in the field board 7 and the lower covering material 7a, rainwater does not enter from the opening 8, and thus the ventilation of the back of the hut can be suitably performed.

Example 4
The field board ventilation apparatus 1 which concerns on FIG. 6 at Example 4 is shown. The field board ventilation apparatus 1 of the fourth embodiment is the same as that of the second embodiment except that the flange portion 10 is extended on the upper surface portion 4 beyond the front side surface portion 5.
In the field plate ventilator 1 according to the fourth embodiment, rainwater from between the front roof tile and the roof tile enters the opening by disposing the collar portion 10 so as to be covered on the bottom roof tile. Can be effectively prevented.

Example 5
A fifth embodiment is shown in FIGS. The fifth embodiment is an embodiment relating to a cabin back ventilation method using the field board ventilation apparatus of the present invention.
In Example 5, the opening part 8 is provided in the field board 7 and the lower covering material 7a, and this opening part 8 is coat | covered with the field board ventilation apparatus 1 shown in Example 1. FIG. The field plate ventilator 1 is fixed with nails at a fixing portion 2 a provided on the bottom surface portion 2.
In the fifth embodiment, as shown by the broken line arrows in FIG. 8, the air rising from the back of the hut passes through the opening 8 and is mainly discharged from both side ends 6 of the field board ventilator 1. Further, the field plate ventilator side end 6 is provided so as to protrude about 50 mm from the opening side end 8 b, that is, the opening side end 8 b is provided about 50 mm inside the field plate ventilator side end 6. .

  According to the roof back ventilation method of the fifth embodiment, the rainwater that has flowed down from the rear on the underlaying material 7a on the field plate 7 is controlled by the bottom surface portion 2 and the rear side surface portion 3 of the field plate ventilation device 1, Since the air flows through the side of the ventilator 1, there is no water drop dripped from the top plate ventilator 1 as in the conventional example shown in FIG. From entering the back of the hut. In addition, when a strong cross wind blows, rainwater flowing through the side portion of the field plate ventilator 1 is also slightly blown, but the opening side end 8b is located 50 mm inside the field plate ventilator side end 6 so No rainwater will flow into 8.

Example 6
FIG. 9 shows a sixth embodiment. The sixth embodiment is an embodiment relating to a hut ventilation method using the field board ventilation device of the present invention.
The sixth embodiment is an example in which a rear waterproof bank 9a, a side waterproof bank 9b, and a front waterproof bank 9c are provided around the opening 8 in the fifth embodiment.

  In a normal case in the sixth embodiment, rainwater that has flowed down from the rear through the underlaying material 7a bypasses the side of the field board ventilator 1 and flows forward (see broken line arrows in FIG. 9). Here, in the unlikely event that rainwater leaks from between the bottom part 2 and the lower covering material 7a on the base plate 7, it is blocked by the rear waterproof bank 9a, bypasses the opening 8, and flows downward (see FIG. 9 dash-dot line arrow). Even when a strong cross wind blows here, the rainwater flow path is blocked by the side waterproof bank 9 b, so that the rainwater does not flow into the opening 8. Further, even when a strong wind blows from the gap between the front tiles and the rain water on the lower covering material 7a on the base plate 7 blows up from the front against gravity, it is blocked by the front waterproof bank 9c. Rainwater does not flow into the opening 8 (see the two-dot chain line arrow in FIG. 9).

Example 7
A seventh embodiment is shown in FIG. This Example 7 is an example relating to a roof back ventilation method using the field plate ventilator of the present invention, and is an example in which the field plate ventilator 1 according to Example 2 is covered on the opening 8.

  In this Example 7, rainwater from between the bottom surface portion 2 and the underlaying material 7a is obtained by interposing the sealing material 2b for water stop between the bottom surface portion 2 and the underlaying material 7a on the base plate 7. Since leakage is more effectively prevented, rainwater does not flow from the opening 8 into the back of the hut.

Example 8
FIG. 11 shows an eighth embodiment. Example 8 is an example relating to a roof ventilation method using the field board ventilation device of the present invention.
The eighth embodiment is an example in which, in the seventh embodiment, the front side surface portion 5 and the rear end Ta of the front roof tile are brought into contact with each other and the front end 4a of the upper surface portion 4 is located above the rear end Ta of the front roof tile.

  In the eighth embodiment, the rain water on the roof tile T is less likely to fall from between the field board ventilator 1 by bringing the front side surface portion 5 in the seventh embodiment into contact with the rear end Ta of the front roof tile. Further, since the front surface end 4a is located above the rear end Ta of the front roof tile, a step is generated. Therefore, the rainwater flowing in between the roof tiles T is pushed back by this step and is discharged from the opening 8 into the rainwater. Becomes difficult to penetrate.

Example 9
Example 9 is shown in FIG. Example 9 is an example relating to a roof ventilation method using the field board ventilation device of the present invention.
In the ninth embodiment, the field plate ventilator shown in the fourth embodiment is used, and the heel portion 10 is disposed so as to be covered on the water return Tb of the lower roof tile. In the ninth embodiment, even if rainwater enters from between the tiles T, the intrusion into the opening 8 is prevented because the brim portion 10 of the field plate ventilator 1 covers the water return Tb of the lower tile. Be blocked.

  As described above, the field plate ventilator and the hut ventilation method of the present invention are controlled so as to bypass the rainwater flowing down from behind the underlaying material on the field plate to the side of the field plate ventilator, By blocking rainwater that has entered through the gap between the roof tiles in front of the roof, rainwater can be effectively prevented from entering indoors, and is extremely useful in the field of roof ventilation. It is expensive.

1 is a perspective view of Example 1. FIG. 2 is a cross-sectional view taken along line AA of Example 1. FIG. 6 is a perspective view of Example 2. FIG. 6 is a cross-sectional view taken along line AA of Example 2. FIG. 6 is a cross-sectional view of Example 3. FIG. 6 is a sectional view of Example 4. FIG. It is sectional drawing of the flow direction of the roof of Example 5. FIG. It is sectional drawing of a perpendicular direction with respect to the flow direction of the roof of Example 5. FIG. It is a top view of the state which removed the upper surface part of the opening part vicinity in Example 6. FIG. It is sectional drawing of the flow direction of the roof of Example 7. FIG. It is sectional drawing of the flow direction of the roof of Example 8. FIG. It is sectional drawing of the flow direction of the roof of Example 9. FIG. It is sectional drawing of the flow direction of a prior art example roof.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Field plate ventilator 2 Bottom surface part 2a Fixing part 2b Sealing material for water stop 3 Rear side surface part 4 Upper surface part 4a Front end part of upper surface part 5 Front side surface part 6 Field plate board ventilation device side edge 7 Field plate 7a Underlay material 8 Opening part 8a Opening rear end 8b Opening side end 8c Opening front end 9 Waterproof bank 9a Rear waterproofing bank 9b Side waterproofing bank 9c Front waterproofing bank 10 Ridge T roof tile Tail rear end Tb Roof tile return A Ground plate ventilation equipment

Claims (8)

A field plate ventilation device having a bottom surface portion, a rear surface portion, an upper surface portion, and a front surface portion, wherein the bottom surface portion is provided with a fixing portion that fixes the field plate ventilation device to the field plate. Is erected on the bottom surface, the upper surface portion is laterally provided on the rear side surface portion, the front side surface portion is suspended from the upper surface portion, and is formed by the rear side surface portion, the upper surface portion, and the front side surface portion. A field board ventilator characterized in that both side ends are open and the front side surface part is provided such that a gap of 5 to 10 mm is formed between the tip of the front side part and the lower covering material on the field board.   2. The field board ventilator according to claim 1, wherein a flange portion is provided on the upper surface portion so as to extend beyond the front side surface portion, or a flange portion is provided horizontally on the front side surface portion.   The field board ventilation apparatus according to claim 1 or 2, wherein a sealing material for water stop is provided on the bottom surface of the bottom surface.   An opening part is provided in a field board and a lower covering material, and a bottom part is provided so that the upper surface part of the field board ventilation apparatus of any one of Claims 1-3 may cover an opening part in the rear-end side of this opening part. A roof ventilation method characterized by controlling rainwater flowing down on the flooring material from the rear to the side of the field plate ventilator.   5. The shed ventilation method according to claim 4, wherein the opening side end is 50 to 100 mm inside of the field plate ventilator side end.   Provide a waterproof bank between the rear edge of the opening and the bottom surface, or provide a waterproof bank between the edge of the opening and the edge of the field plate ventilator, or between the front edge of the opening and the front side surface. 6. The method of ventilating a hut according to claim 4 or 5, wherein a waterproof bank is provided on the roof.   The hut back according to any one of claims 4 to 6, wherein the front side portion and the rear end of the front tile are in contact with each other, and the front end of the upper surface portion is above the rear end of the front tile. Ventilation method. The hut ventilation method according to any one of claims 4 to 7, wherein the eaves part is disposed so as to cover the roof tile below.

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