JP2008240241A - Roof and its water cut-off structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water cut-off structure of a roof capable of preventing the intrusion of the water moving along a lower face side of a roof face member securely and the roof. <P>SOLUTION: In this water cut-off structure of the roof, the water W2 attempting to flow reversely on a lower face of a panel member 6 is prevented from flowing by a first water cut-off member 86, and the water W6 reversely flowing onto a lower face of a panel supporting part 5B is prevented by a first rising piece 71, drops into a recessed ditch part 70, and is drained even if the water W2 crosses the first water cut-off member 86 to improve the water cut-off performance. Furthermore, the water entering the inside of a panel holding member 8 is drained into a gutter 7 through a water drain hole 88 in an inclined bottom face part 82, and the water entering the recessed ditch part 70 is drained into the gutter 7 through a water drain hole 74 so that the water entering the inside of the panel holding member 8 and the inside of the recessed ditch part 70 does not remain there and the water remaining in the inside of them is prevented from overflowing. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a waterproof structure for a roof and a roof, and more specifically, includes a roof surface material installed with a water gradient, and a gutter provided along the lower edge of the roof surface material. The present invention relates to a water-stop structure of a roof and a roof provided with the water-stop structure.

2. Description of the Related Art Conventionally, roofs installed on outdoor structures such as outdoor terraces, carports, solariums, approaches, etc., have been proposed (for example, roof structures having ridges along the lower edge of the roof surface material) , See Patent Document 1).
The roof structure described in Patent Document 1 includes a column, a beam supported by the column, and a roof body (roof surface material) supported by the beam. A ridge is provided along the edge. The eaves are formed in a substantially U-shaped cross section that opens upward, and a presser member (panel holding portion) that holds the roofing material of the roof surface material from above and below is provided on the upper side wall side. ing. The panel holding portion extends from the upper side wall side of the fence to the lower side along the lower surface of the roofing material, rises along the lower edge of the roofing material, and runs upward on the upper surface of the roofing material. It is formed in a U-shape that is bent. An upper watertight material and a lower watertight material that are in contact with the upper and lower surfaces of the roofing material are attached to the panel holding portion, and the roofing material is held by these upper and lower watertight materials.

JP 2006-249679 A

  However, in the conventional roof structure, rainwater or the like is prevented from entering the inside of the panel holding portion by the upper watertight material. However, when water enters the inside of the panel holding portion, this water is roofed. There is a possibility that it will penetrate the lower surface of the material and enter the terrace space beyond the lower watertight material by capillary action.

  An object of the present invention is to provide a waterproof structure for a roof and a roof that can reliably prevent the intrusion of water that travels on the lower surface side of the roof surface material.

  The waterproof structure of the roof according to the present invention is a waterproof structure of a roof provided with a roof surface material installed with a water gradient and a gutter provided along the lower edge of the roof surface material. The ridge has at least a ridge side wall located below the roof surface material and above the water-side end edge, and is open upward on the water side from the side wall. It is formed in a groove shape, and a first water stop portion that comes into contact with the lower surface of the roof surface material is formed on the upper side of the side wall of the roof, and the lower surface of the roof surface material is contacted above the first water stop portion. A second water stop portion that is in contact with each other and a groove-shaped water receiving portion that is located between the first and second water stop portions are provided.

  According to the present invention as described above, the first water stop portion and the second water stop portion are provided at the upper end of the side wall of the dredging, so that the water transmitted through the lower surface of the roof surface material is first blocked by the first water stop. Even if the water exceeds the first water stop portion, the second water stop portion provided on the upper side of the water causes the water to drop to the water receiving portion (second water stop), The intrusion can be reliably prevented and the water stop performance can be improved.

Under the present circumstances, in the water stop structure of the roof of this invention, it is preferable that the drain hole which drains the water in the said water receiving part to the said ridge is formed in the said water receiving part.
According to such a configuration, the water that is prevented from entering by the second water stop portion and drained to the water receiving portion is drained from the drain hole to the trough, so that water accumulates in the water receiving portion and overflows. To prevent water-stopping.

Furthermore, in the still water structure for a roof according to the present invention, the roof surface material includes a plurality of rafters extending from the water upper side to the water lower side along the water gradient, and at least one of which side edges are supported by these rafters. The rafter includes a rafter main body, a panel support portion provided on the rafter main body for supporting the panel material from below, and the panel facing the panel support portion. And a panel presser for pressing the material from above, the rafter main body is positioned on the water side above the heel side wall, and the panel support portion extends below the heel side wall. The second water stop portion is in contact with the lower surface of the panel support portion extending to the underwater side, and the lower surface of the panel support portion and the lower surface of the panel material supported by the panel support portion , At least one of the first water stop portions It is preferable that in contact.
According to such a configuration, in the case where the rafter panel support portion that supports the panel material from below is formed to extend below the heel side wall, the second water stop portion is provided on the lower surface of the panel support portion. By contacting, water can be prevented from entering more effectively. That is, since the lower surface of the panel support part is located on the lower side than the lower surface of the panel material, water tends to collect on the panel support part side, and this water travels down the lower surface of the panel support part and flows back to the upper side of the water. Since possibility is high, the water stop performance can be improved by blocking the water on the lower surface of the panel support portion by the second water stop portion and dropping the water to the water receiving portion.

Moreover, in the water stop structure of the roof of the present invention, a panel holding portion that extends below the first water stop portion and holds the water-side edge of the panel material is provided on the side wall of the roof. The panel holding part is preferably formed with a second water receiving part located below the first water stop part and below the panel material.
At this time, it is preferable that a second drain hole for draining the water in the second water receiver to the tub is formed in the second water receiver.
According to such a configuration, the second water receiving portion is provided in the panel holding portion that holds the underwater side edge of the panel material, so that the water below the first water stop portion is secondly supplied. The water received by the water receiving portion, and the received water can be drained from the second drain hole to the trough, and the water stopping performance can be further improved by draining before reaching the first water stopping portion.

On the other hand, the roof according to the present invention includes a support, a beam supported by the support, a roof material supported by the beam having a water gradient, and an underwater edge of the roof material. It is the roof provided with the provided fence, Comprising: The said roof surface material and the said fence are connected by the water stop structure in any one of Claims 1-5.
According to such a roof, the same effect as described above, that is, water that flows backward through the lower surface of the roof surface material is blocked, and entry to the outdoor terrace, carport, sunroom, approach, etc. space is reliably prevented. can do.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
In the second and subsequent embodiments, the same constituent members as those described in the first embodiment and the constituent members having the same functions are denoted by the same reference numerals as those in the first embodiment. Those descriptions are omitted or simplified.

[First Embodiment]
FIG. 1 is a perspective view showing a roof 1 according to the first embodiment of the present invention. 2 and 3 are longitudinal sectional views showing an enlarged main part of the roof 1. FIG. 4 is a longitudinal sectional view showing the roof surface material of the roof 1. FIG. 5 is a longitudinal sectional view for explaining a water stop structure in the roof 1.
1 and 2, the roof 1 covers the upper space of an outdoor terrace, porch, car port (garage), solarium, approach, and the like provided adjacent to the building S, and stands from the ground. The two supporting columns 2, four-round beams 3 supported by these columns 2 and the building S, and a roof surface material 4 supported by these beams 3 are configured. The roof surface material 4 is installed with a water gradient inclined downward from the building S toward the two columns, and a plurality of rafters 5 extending from the water upper side to the water lower side along the water gradient. And a plurality of panel members 6 (roofing materials) whose side edges are supported by these rafters 5. And the eaves 7 are provided in the under water side of the roof surface material 4 along the edge.

  The eaves 7 are composed of an eaves member 7A made of an aluminum shape and fixed to the side surface of the beam 3 through an appropriate attachment. As shown in FIG. 3, the flange member 7 </ b> A includes a front surface portion 7 </ b> B along the beam 3, a bottom surface portion 7 </ b> C extending continuously to the water side (right side in FIG. 3), and the bottom surface portion. It has a back surface portion 7D that rises from the water-side end portion of 7C, and is formed in an overall groove shape that opens upward. And the back surface part 7D of the eaves member 7A is provided below the roof surface material 4 and above the water-side edge, ie, the eaves side wall is constituted by the back surface part 7D. The bottom surface portion 7C of the ridge 7 is provided with a drain hole in an appropriate position (not shown), for example, in the vicinity of the support column 2, so that the water inside the ridge 7 can be drained through an appropriate vertical rod or the like. ing.

  As shown in FIG. 4, the rafter 5 constituting the roof surface material 4 is formed of an aluminum shape and formed into a rectangular tube shape, and a rafter main body 5A is formed on the upper portion of the rafter main body 5A so that the panel material 6 extends downward. A panel support portion 5B that supports the panel material 5 and a panel presser material 5C that opposes the panel support portion 5B and presses the panel material 6 from above. The panel support 5B and the panel presser 5C are provided with water-stopping materials 51 and 52, respectively, so that the panel material 6 can be sandwiched from above and below by these water-stopping materials 51 and 52. The panel material 6 is comprised by resin board materials, such as a polycarbonate, The side edge is hold | maintained at the panel support part 5B and the panel pressing material 5C. The rafter main body 5A is cut at a position where the rafter main body 5A comes into contact with the back surface portion 7D of the eaves member 7A from above, and the panel support portion 5B and the panel pressing member 5C are formed to extend below the back surface portion 7D. Also, the panel material 6 supported by these is disposed such that the lower edge of the lower surface extends below the rear surface portion 7D.

Next, based on FIG. 5, the water stop structure between the eaves member 7A and the roof surface material 4 will be described.
At the upper end of the back surface portion 7D of the flange member 7A, a concave groove portion 70 is formed that opens upward on the lower side of the rear surface portion 7D. The concave groove portion 70 is connected to the first rising piece 71 on the upper side of the water. The second rising piece 72 on the underwater side, and the bottom face portion 73 connecting the base end portions of the first rising piece 71 and the second rising piece 72 are formed. The upper end of the first rising piece 71 is in contact with the lower surface of the panel support portion 5B of the rafter 5. Further, a panel holding member 8 is attached to the concave groove portion 70 so as to extend further below the concave groove portion 70 and hold the lower edge of the panel material 6. The panel holding member 8 is fixed to the bottom surface portion 73 of the recessed groove portion 70 with screws, and a first water-stopping material holding portion 81 formed on the upper end portion rising along the second rising piece 72, An inclined bottom surface portion 82 extending downwardly from the water-stopping material holding portion 81 toward the water-down side, and a water-side end of the panel material 6 extending upward from the water-side end portion of the inclined bottom surface portion 82. A holding piece portion 83 that comes into contact with the edge, a holding upper surface portion 84 that extends from the upper end of the holding piece portion 83 along the upper surface of the panel material 6 to the water side, and a water-side end portion of the holding upper surface portion 84. 2 water-stopping material holding portion 85. The first water blocking material holding portion 81 of the panel holding member 8 holds the first water blocking material 86 that contacts the lower surface of the panel material 6, and the second water blocking material holding portion 85 holds the panel material 6. The 2nd water stop material 87 contact | abutted to the upper surface of is hold | maintained.

In the recessed groove portion 70 and the panel holding member 8 described above, first, the second water blocking material 87 is brought into contact with the upper surface of the panel material 6, so that the water that has flowed downward from the upper surface of the panel material 6 to the panel holding member. 8 is prevented from entering inside. However, the panel holding member 8 is provided between the second water stopping material 87 and the water stopping material 52 of the rafter 5 or from a metal touch portion between the holding upper surface portion 84 of the panel holding member 8 and the panel pressing member 5C of the rafter 5. When water enters, the water falls onto the inclined bottom surface portion 82 as shown by an arrow W1 in FIG. As described above, since the inclined bottom surface portion 82 has a downward slope on the water side, the water dropped on the inclined bottom surface portion 82 does not flow to the water upper side, and the inclined bottom surface portion 82, the holding piece portion 83, It is designed to accumulate on the crossing side. Therefore, the inclined bottom surface portion 82 and the holding piece portion 83 constitute the second water receiving portion of the present invention. And since the drainage hole 88 is formed in the slope lower end part side (holding piece part 83 side) of the inclination bottom face part 82 in the appropriate position of a longitudinal direction, the water of the upper surface of the inclination bottom face part 82 is the drainage hole 88. As shown by the arrow W5, the water is drained to the trough 7.
In addition, when the water that has entered the panel holding member 8 flows back along the lower surface of the panel material 6 as indicated by the arrow W2, the water is blocked by the first water stop material 86 and is moved to the arrow W3. As shown in the figure, the water falls to the inclined bottom part 82 side, so that this water also flows through the inclined bottom part 82 as shown by the arrow W4, and is drained from the drain hole 87 to the trough 7 as shown by the arrow W5. Yes. That is, the 1st water stop part 86 of this invention is comprised by the 1st water stop material 86. FIG.

On the other hand, from the metal touch part of the panel support part 5B of the rafter 5 and the first water-stopping material holding part 81 of the panel holding member 8, the water exceeding the first water-stopping material 86 first becomes the panel holding member 8 and the groove part. 70 enters the gap space 75 between the second rising piece 72 and drains from a drain hole 74 described later. Further, when the water flows back to the upper side of the bottom surface of the panel support portion 5B beyond the first water stop material 86 as indicated by an arrow W6, the water blocks the first rising piece 71 of the groove portion 70. Rarely, it falls into the recessed groove portion 70 as indicated by an arrow W7. That is, the first standing piece 71 constitutes the second water stop portion of the present invention, and the concave groove portion 70 constitutes the water receiving portion of the present invention. A drain hole 74 is formed at an appropriate position in the longitudinal direction on the bottom surface portion 73 of the concave groove portion 70, and the water dropped into the concave groove portion 70 passes from the drain hole 74 to the ridge 7 as indicated by an arrow W8. It is supposed to be drained.
As described above, the water W2 that attempts to flow backward on the lower surface of the panel material 6 is blocked by the first water stop material 86 that is the first water stop portion and drained from the inclined bottom surface portion 82 through the drain hole 88, The water W6 which is going to flow backward on the lower surface of the panel support 5B of the rafter 5 is blocked by the first rising piece 71 which is the second water stop and is passed through the drain hole 74 from the concave groove 70 which is the water receiver. It drains, and the water stop structure of this embodiment is constituted by this.

According to this embodiment, there are the following effects.
(1) That is, the first water stop material 86 prevents the water W2 from flowing back on the lower surface of the panel material 6, and even if the water exceeds the first water stop material 86, the first rising piece 71 supports the panel. Since the water W6 which tries to flow backward on the lower surface of the part 5B is blocked and falls into the concave groove part 70 and drained, the water stopping performance can be improved.

(2) Since the water that has entered the panel holding member 8 is drained from the drain hole 88 of the inclined bottom surface portion 82 to the trough 7, and the water that has entered the concave groove portion 70 is drained from the drain hole 74 to the trough 7, Water does not remain in the panel holding member 8 or the recessed groove portion 70, and the accumulated water can be prevented from overflowing.

(3) Moreover, even if water enters along the lower surface of the panel support part 5B from the metal touch part of the panel support part 5B of the rafter 5 and the panel holding member 8, it is on the water side rather than the 1st standing piece 71. Since the intrusion of the metal can be prevented, the seal material for the metal touch portion can be simplified or omitted, so that it is possible to reduce the time and labor of the seal construction.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS.
FIG. 6 is a longitudinal sectional view showing a roof 1A according to the second embodiment. FIG. 7 is a perspective view showing a ridge 7 portion in the roof 1A. FIG. 8 is a longitudinal sectional view for explaining a water stop structure in the roof 1A.
In this embodiment, the roof 1A is different from the roof 1 of the first embodiment in that the roof member 9 is used in place of the roof member 7A, and the water stop structure between the roof member 9 and the roof surface material 4 is different. Other configurations are substantially the same as those of the first embodiment. Hereinafter, the differences will be described in detail.

The eaves member 9 also serves as the eaves member 7A and the beam 3 of the first embodiment, and is joined to the beam 3 where both ends thereof intersect. The eaves member 9 includes a front surface portion 9A, a bottom surface portion 9B extending continuously from the front surface portion 9A to the water upper side (right side in FIG. 6), and a rear surface portion (樋) Side wall) 9C, and is formed in an overall groove shape opened upward. In addition, a panel holding portion 9D that holds the water-side edge of the panel material 6 is formed on the upper end portion and the water-side of the back surface portion 9C.
Moreover, in this embodiment, the roof surface material 4 is configured to have a rafter 5 and a panel material 6 that are substantially the same as those of the first embodiment, and as shown in FIG. The panel support portion 5B and the panel pressing member 5C are formed so as to extend below the back surface portion 9C to the water side.

Next, based on FIG. 8, the water stop structure between the eaves member 9 and the roof surface material 4 is demonstrated.
At the upper end of the back surface portion 9C of the eaves member 9, a concave groove portion 90 is formed that opens upward on the lower side of the rear surface portion 9C. The concave groove portion 90 is connected to the first rising piece 91 on the upper side of the water. The bottom surface portion 92 extending from the base end portion of the first rising piece 91 to the water side, and the second rising piece 93 rising from the bottom surface portion 92 so as to face the water side of the first rising piece 91. It is formed. The upper end of the first upright piece 91 is in contact with the lower surface of the panel material 6, and the upper end of the second upright piece 93 is in contact with the lower surface of the panel support portion 5 </ b> B of the rafter 5. Further, the bottom surface portion 92 of the recessed groove portion 90 extends further below the second rising piece 93, and a panel holding portion 9 </ b> D is formed integrally with the eaves member 9 at the distal end side. The panel holding portion 9D extends from the bottom surface portion 92 to the underwater side and has an inclined bottom surface portion 94 having an upward slope, and extends upward from the underwater side end portion of the inclined bottom surface portion 94 so that the panel material 6 is underwater. The holding piece portion 95 is in contact with the side edge and has a holding upper surface portion 96 extending from the upper end of the holding piece portion 95 to the water side along the upper surface of the panel material 6. The panel material 6 abuts the lower surface of the panel material 6 against the upper end of the first rising piece 91, contacts the water-side edge with the holding piece portion 95, and the upper surface of the panel material 6 is locked to the holding upper surface portion 96. To be retained. On the other hand, the panel support 5B of the rafter 5 extends below the water via a notch 97 formed in the first rising piece 91, and the upper end of the notch 97 abuts on the lower surface of the panel support 5B. It has become.

  In the concave groove 90 and the panel holding member 9D described above, first, water that has flowed down the upper surface of the panel material 6 enters the panel holding member 9D from between the panel material 6 and the holding upper surface portion 96 or the like. In this case, this water falls onto the inclined bottom surface portion 94 as shown by the arrow W1 in FIG. Since the inclined bottom surface portion 94 has a downward slope on the water upper side, the water dropped on the inclined bottom surface portion 94 is between the inclined bottom surface portion 94 and the second rising piece 93 as indicated by an arrow W4. It flows into the bottom surface portion 92 and is drained into the trough 7 as shown by an arrow W5 from a drain hole 99 formed in the bottom surface portion 92. Further, when the water that has entered the panel holding member 9D flows back along the lower surface of the panel material 6 and flows upward on the water side as indicated by the arrow W2, the water is blocked by the first rising piece 91 and is moved to the arrow W3. In order to drop into the concave groove portion 90 as shown by, the drainage hole 98 formed in the bottom surface portion 92 in the concave groove portion 90 is drained into the trough 7 as indicated by an arrow W8.

  On the other hand, when the water passing through the panel support 5B of the rafter 5 and the inside of the panel holding member 8 enters the panel holding member 9D as indicated by the arrow W9, the water falls on the inclined bottom surface 94. The drainage hole 99 is drained. However, when a part of the water flows back along the lower surface of the panel support portion 5B as indicated by the arrow W6, the water is blocked by the second rising piece 93 of the concave groove portion 90, and the arrow W7. As indicated by ', it falls to the bottom surface portion 92 between the inclined bottom surface portion 94 and the second rising piece 93 and is drained from the drain hole 99. Further, when the water flows back to the upper side of the water through the lower surface of the panel support 5B beyond the second rising piece 93, the water is blocked at the position of the cutout portion 97 of the first rising piece 91 and is moved to the arrow. As shown by W7, it falls to the bottom face part 92 in the recessed groove part 90, and is drained to the eaves 7 as shown by the arrow W8 from the drain hole 98.

  As described above, in the water stop structure of the present embodiment, the first water stop portion of the present invention is configured by the second rising piece 93 of the concave groove portion 90, and the first rising piece 91 and the notch portion 97 of the present invention are used. While the 2nd water stop part is comprised, the water receiving part of this invention is comprised by the ditch | groove part 90. FIG. And the water W2 which is going to flow backward on the lower surface of the panel material 6 is blocked | interrupted by the 1st standing piece 91 which is a 2nd water stop part, and drains through the drain hole 98 from the inside of the recessed groove part 90 which is a water receiving part. The water W6 that is going to flow backward on the lower surface of the panel support 5B of the rafter 5 is blocked by the second rising piece 93 that is the first water stop and drained through the drain hole 99, or 2 is blocked by the notch 97 of the first rising piece 91 which is a water stop, and is drained from the inside of the concave groove 90 through the drain hole 98, thereby constituting the water stop structure of the present embodiment. Has been.

According to this embodiment, the following effects can be obtained.
(4) That is, the water W <b> 2 that attempts to flow backward on the lower surface of the panel material 6 is blocked by the first rising piece 91, and the panel support is provided by the second rising piece 93 and the notch 97 of the first rising piece 91. The water W6 that attempts to flow backward on the lower surface of the portion 5B is blocked, and the water blocked from the backward flow is drained from the drain holes 98 and 99, so that the water stopping performance can be improved. And since the penetration | invasion to the water upper side rather than the 1st standing piece 91 can be prevented, since the sealing material of a metal touch part can be simplified or abbreviate | omitted, the effort of sealing construction can be reduced.

In addition, this invention is not limited to the said embodiment, Including other structures etc. which can achieve the objective of this invention, the deformation | transformation etc. which are shown below are also contained in this invention.
For example, in the above-described embodiment, the roof 1, 1A in which the roof surface material 4 is supported by the support column 2, the beam 3, or the like has been described, but the roof of the present invention is not limited to the one having the support column or the beam, It may be a roof used for canopies protruding in a cantilevered manner from an outer wall surface or the like.
Moreover, in the said embodiment, although it had the rafter 5 and the panel material 6 as a structure of the roof surface material 4, it is not restricted to this, A roof surface material is plate shape without having the rafter 5. You may be comprised only with the member. And the 1st water stop part and 2nd water stop part of this invention should just contact | abut to the lower surface of a roof surface material, respectively, As the contact location, the panel material 6 lower surface and the panel support part of the rafter 5 It is not limited to the lower surface of 5B.

In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

It is a perspective view which shows the roof which concerns on 1st Embodiment of this invention. It is a longitudinal cross-sectional view which expands and shows the principal part of the said roof. It is a longitudinal cross-sectional view which expands and shows the principal part of the said roof. It is a longitudinal cross-sectional view which shows the roof surface material in the said roof. It is a longitudinal cross-sectional view explaining the water stop structure in the said roof. It is a longitudinal cross-sectional view which shows the roof which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the collar part in the said roof. It is a longitudinal cross-sectional view explaining the water stop structure in the said roof.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,1A ... Roof, 2 ... Post, 3 ... Beam, 4 ... Roof surface material, 5 ... Rafter, 5A ... Rafter body, 5B ... Panel support part, 5C ... Panel presser, 6 ... Panel material, 7 ... Reed, 7D, 9C ... back surface (side wall), 70, 90 ... concave groove (water receiving portion), 71 ... first rising piece (second water stop), 74, 98 ... drainage hole, 86 ... first stop Water material (first water stop), 88, 99 ... drainage hole, 91 ... first rising piece (second water stopping portion), 93 ... second rising piece (first water stopping portion), 97 ... notch Part (second water stop part).

Claims (6)

A roof waterstop structure comprising a roof surface material installed with a water gradient and a gutter provided along the lower edge of the roof surface material,
The reed has at least a reed side wall located below the roof surface material and above the water-side edge, and is formed in an overall groove shape opened upward on the water side from the reed side wall. And
A first water stop portion that comes into contact with the lower surface of the roof surface material, and a second water stop portion that comes into contact with the lower surface of the roof surface material on the water upper side than the first water stop portion are formed at the upper end of the side wall. And a water-stop structure for a roof provided with a groove-shaped water receiving portion located between the first and second water-stop portions.   The water stop structure for a roof according to claim 1, wherein a drainage hole for draining water in the water receiving part to the trough is formed in the water receiving part. The roof surface material includes a plurality of rafters extending from the water upper side to the water lower side along the water gradient, and at least one panel material whose side edge is supported by these rafters,
The rafter has a rafter main body, a panel support portion provided on the rafter main body for supporting the panel material from below, and a panel presser material for pressing the panel material from above facing the panel support portion. And the rafter body is located above the dredge side wall, and the panel support is formed to extend below the dredge side wall,
The second water stop portion is brought into contact with the lower surface of the panel support portion extending to the underwater side, and at least of the lower surface of the panel support portion and the lower surface of the panel material supported by the panel support portion. The waterproof structure of the roof according to claim 1 or 2, wherein the first waterproof part is in contact with one side.   The side wall is provided with a panel holding portion that extends below the first water stop portion to hold the water-side edge of the panel material, and the panel holding portion includes the first water stop. The waterproof structure for a roof according to claim 3, wherein a second water receiving portion located below the water portion and below the panel material is formed.   The water stop structure for a roof according to claim 4, wherein the second water receiving portion is formed with a second drainage hole for draining water in the second water receiving portion to the trough. A column, a beam supported by the column, a roof material having a water gradient and supported by the beam, and a gutter provided along the lower edge of the roof material. A roof,
The roof where the said roof surface material and the said fence are connected by the water stop structure in any one of Claims 1-5.

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