JP2001090284A - Waterproof structure of exterior-wall panel and roof connecting section - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure waterproof performance in the connecting section of both an exterior-wall panel and a roof surface even in the case of the shallow depth of a groove formed to the surface of the exterior-wall panel in parallel with the roof surface. SOLUTION: The upstanding piece 6a and horizontal piece 6b of a drip cap metal fitting 6 having the upstanding piece 6a and the horizontal piece 6b at an end section are inserted into a groove 3 formed to the exterior-wall panel 1 in parallel with a roof surface in the connecting section A of the exterior-wall panel 1 and a roof 2 containing a sloped roof or a flat roof, the first sealing material 7 is arranged between the vertical surface 3b and upstanding piece 6a of the groove 3, and the second sealing material 9 is arranged between the upper horizontal surface 3c of the groove 3 and the horizontal piece 6b of the drip cap metal fitting 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure at a joint between a sloped roof of a shelter or a roof of a veranda and an outer wall panel, and particularly to a case where a groove formed on the surface of the outer wall panel is shallow. The present invention relates to a waterproof structure capable of reliably waterproofing even if there is.

[0002]

2. Description of the Related Art In a building having two or more floors, a veranda 52 having a flat roof 51 as shown in FIG.
In some cases, a shed 54 having a sloped roof 53 as shown in FIG. In such a flat roof 51 and a sloping roof 53, it is necessary to perform sufficient waterproofing work at the joint 56 connecting a part of the roof material to the outer wall panel 55.

Here, a waterproof structure in the joint 56 will be described with reference to FIG. The outer wall panel 55 has roofs 51 and 53
A groove 55a having a predetermined depth is formed in parallel with.
At the end of each of the roofs 51 and 53, a rain stopper metal fitting 57 formed in a predetermined shape in accordance with the structure of each roof is arranged, and a rising piece 57a of the rain holding metal fitting 57 is placed inside the groove 55a. It is inserted and fixed to the vertical side of the groove 55a by screws or nails 58.

Therefore, a horizontal piece 57b formed continuously with the upright piece 57a is disposed so as to protrude from the groove 55a and cover the upper part of the roof foundation 59, and the upright piece of the rain holding metal fitting 57 is provided on the vertical side at the back. 57a are arranged. And the groove 55a,
The sealing material 60 is filled in a portion formed by the upright piece 57a, the horizontal piece 57b, and the upper horizontal side of the groove 55a of the rain holding metal fitting 57, and waterproofing is performed.

In the above waterproof structure, when water enters the room through the groove 55a formed in the outer wall panel 55, a gap formed between the vertical side of the groove 55a and the upright piece 57a of the rain holding metal fitting 57. Will pass through. However, since the groove 55a is formed sufficiently deep, the upper horizontal side of the groove 55a and the sealing material
It is possible to prevent water from entering by joining with 60.

In the outer wall panel 55, when a groove 55a parallel to the roof surface is formed on the surface, the depth of the groove 55a is not unlimited due to the rebar existing inside the outer wall panel 55. It has a substantially constant value (approximately 15 mm) with the surface in the state where no surface treatment is performed as a reference surface. Therefore, a sufficiently deep groove 55 is required for the outer wall panel 55 whose surface is not designed.
Although it is possible to form a, the relative depth of the groove 55a is shallow in the outer wall panel 55 where there is unevenness due to the application of a high design. In particular, recently, the outer wall of the building often requires high designability, and the surface of the outer wall panel 55 is not a flat surface but often has complex irregularities.

[0007]

In the above waterproof structure, water is prevented from entering mainly by the joint between the upper horizontal side of the groove and the sealing material. For this reason, in an exterior wall panel having a high design property, the depth of the groove formed on the surface of the exterior wall panel becomes shallow, and even when the exterior wall panel is filled with a sealing material, the joining between the sealing material and the exterior wall panel is performed. There is a problem in that the length of the part cannot be sufficiently set, and there is a possibility that the reliability of waterproofness may be impaired. In order to solve this problem, the surface of the outer wall panel which is arranged in a part constituting a vault or a veranda and a peripheral part having a height at which a groove is to be formed are flattened without design. By holding, a groove having a sufficient depth is formed. But,
In such an outer wall panel, the mounting position of the outer wall panel is fixed, which causes a problem in that it takes time and effort in processing and storage management.

An object of the present invention is to provide a waterproof structure between an outer wall panel and a roof joint which can exhibit high reliability even when the depth of a substantial groove is shallow.

[0009]

According to the present invention, there is provided a waterproof structure for an outer wall panel and a roof joint according to the present invention.
A waterproof structure for a joint between a roof panel including an outer wall panel and a sloped roof or a flat roof, wherein at least an upright piece and a horizontal piece are formed at an end in a groove formed in the outer wall panel in parallel with the roof surface. The upright piece and the horizontal piece of the fitting are fitted,
The first sealing material is arranged between the vertical surface of the groove and the upright piece of the rain gutter, and the second sealing material is arranged between the upper horizontal surface of the groove and the horizontal piece of the grommet. It is a feature.

In the above waterproof structure, the first sealing material is disposed between the vertical surface of the groove formed in the outer wall panel and the upright piece of the rain holding metal fitting, and the upright piece, the horizontal piece,
The U-shaped groove constituted by the upper horizontal surface of the groove and the second
By arranging the sealing material, the reliability for waterproofing can be improved.

For example, when the depth of the groove is shallow, the joining length between the second sealing material and the upper horizontal surface of the groove becomes short. But,
Since the first sealing material is disposed between the upright piece of the rain gutter and the vertical surface of the groove, even if water intrudes from between the second sealing material and the upper horizontal surface, The water can be blocked by the first sealing material. For this reason, the reliability of the waterproofness of the outer wall panel and the roof joint can be improved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the above waterproof structure will be described below with reference to the drawings. FIG. 1 is a sectional view schematically illustrating the configuration of the waterproof structure. FIG. 2 is a diagram for explaining the configuration of the rain holding bracket. FIG. 3 is a diagram for explaining a procedure for forming a joint between the outer wall panel and the roof. FIG.
FIG. 4 is a diagram illustrating a procedure for forming a joint between an outer wall panel and a roof.

The waterproof structure of the joint A between the outer wall panel 1 and the roof 2 shown in FIG. 1 has been developed for the outer wall panel 1 in which a shallow groove 3 is formed by applying a high design. However, the present invention can be applied irrespective of the depth of the groove 3 and can exhibit high reliability with respect to waterproof performance.

The waterproof structure of the joint A will be specifically described. Note that the structure of the joint A and the waterproof structure are the same regardless of whether the roof 2 is a sloped roof or a land roof. Therefore, in this embodiment, the roof 2 is configured as a land roof represented by a veranda.

On the surface of the outer wall panel 1, a base material 4c of a roof material 4a such as a tile, which constitutes the roof 2, is nailed or screwed.
The groove 3 is formed along the base material 4c at a position separated by a predetermined dimension from the base material 4c. Accordingly, the groove 3 is provided on the roof surface of the roof 2 (the roof material 4).
(a plane).

A roofing 5 is laid on the surface of the base material 4c of the roof 2 and between the roofing material 4a and an end of the roofing 5 enters the inside of the groove 3 to lower the horizontal surface 3a of the groove 3. Is covered. Then, a rain stopper 6 is disposed on the upper surface of the roofing member 4a and the roofing 5, and the upright piece 6a of the rain stopper 6 enters the inside of the groove 3, and the first seal member 7 is provided between the roof member 4a and the vertical surface 3b of the groove 3. Is fixed to the outer wall panel 1 by a fixing tool such as a nail or a screw in a state where is disposed.

By fixing the rain holding member 6, the horizontal piece 6 b of the rain holding member 6 is provided above the lower horizontal surface 3 a of the groove 3.
Is formed, and a U-shaped portion formed by the horizontal piece 6b, the upright piece 6a, and the upper horizontal surface 3c of the groove 3 is formed. The U-shaped portion is filled with a second sealing material 9.

The rain gutter 6 has a function of extending a lower horizontal surface 3a of the groove 3 formed in the outer wall panel 1 to the surface level of the outer wall panel 1 and connecting the groove 3 and the roof 2 to each other. As shown in FIG. 2, it is constituted by an elongated member having a predetermined cross-sectional shape.

For this reason, at least the rain holding bracket 6
It is configured to have a standing piece 6a formed at an end and a horizontal piece 6b formed continuously with the rising piece 6a, and the shape from the horizontal piece 6b to the other end is such that the roof 2 has a slope. It may be different depending on whether it is a roof or a flat roof. In this embodiment, since the roof 2 is a flat roof, a step piece 6c is formed continuously with the horizontal piece 6b, and the second piece is formed continuously with the step piece 6c.
A horizontal piece 6d is formed.

Therefore, by inserting the upright piece 6a of the rain hold-down fitting 6 into the groove 3, the horizontal piece 6b is
b to the surface of the base material 4c attached to the outer wall panel 1, the step 6c covers the surface of the base material 4c,
Roofing material 4a with horizontal piece 6d attached to the upper surface of base material 4c
By covering the surface of the groove 3, the lower horizontal surface of the groove 3 can be apparently connected to the roof 2 in a seamless state.

The first seal member 7 is disposed between the vertical surface 3b of the groove 3 and the upright piece 6a of the rain holding member 6, and has a function of sealing between them. 7 prevents the water from entering the indoor side through the gap between the vertical surface 3b and the standing piece 6a even when the water enters the groove 3.

The first sealing material 7 may be any material as long as it can be in contact with the vertical surface 3b of the groove 3 when inserted into the groove 3 so as to prevent the passage of water. Absent. However, from the viewpoint of workability and sealing performance when performing waterproofing work, it is preferable that the tape is configured in a tape shape having a width dimension substantially equal to the height of the upright piece 6a of the rain holding metal fitting 6, Further, it is preferable to use a foam-type fixed waterproof material which swells when water acts, or a sealing material such as rubber packing.

In the first sealing member 7, the rain holding metal fitting 6
Can be attached to the end surface of the upright piece 6a with an adhesive or a double-sided tape. By attaching the first seal member 7 to the upright piece 6a of the rain holding member 6 in advance, it is possible to easily arrange the first seal member 7 with the vertical surface 3b of the groove 3 at the time of construction.

The second sealing material 9 is not particularly limited in terms of the material and the like, and the second sealing material 9 that has been conventionally used as a sealing material is used as it is.

In the fitting portion A configured as described above, the substantial depth of the groove 3 formed in the outer wall panel 1 becomes shallow,
Even when the dimension of the upper horizontal surface 3c of the groove 3 becomes smaller, the vertical surface 3b of the groove 3 and the upright piece 6a of the rain holding metal fitting 6 are formed.
It is possible to prevent water from entering by the first seal member 7 disposed between the first seal member 7 and the second seal member 7. That is, regardless of the depth of the groove 3, it is possible to reliably and stably seal.

Next, the procedure for constructing the waterproof structure in the joint A will be briefly described with reference to FIGS.

First, a base material 4c is arranged at a position where the roof 2 is connected to the outer wall panel 1, and is fixed with screws 4b. Next, a groove 3 parallel to the roof surface of the roof 2 is formed on the surface of the outer wall panel 1 at a position separated by a predetermined distance from the base material 4c. There is no limitation as to whether the surface condition of the outer wall panel 1 has a high design or not, as long as the level at which the base material 4c is fixed is simply matched. Therefore, even when a portion where the groove 3 is to be formed is formed in a concave shape, it is not necessary to perform a special process for forming the groove 3 in advance at the portion.

Next, a roofing 5 is laid on the upper surface of the base material 4 c of the roof 2, and an end of the roofing 5 reaches the inside of the groove 3. Next, the first piece 6a
A rain hold-down fitting 6 to which a sealing material 7 is attached is prepared, the upright piece 6a is inserted into the inside of the groove 3, and an appropriate force is applied to the upright piece 6a by a fixing tool 8 to fix the upright piece 6a to the vertical surface 3b. The rain stopper 6 is arranged and fixed over the entire length of the joint A between the roof 2 and the outer wall panel 1 by fixing the standing pieces 6a with the fixing members 8 at appropriate intervals.

By attaching the rain hold-down fitting 6 to the groove 3 as described above, the lower horizontal surface 3 of the groove 3 is apparently formed.
The dimension of “a” increases. Then, the U-shaped space formed by the horizontal piece 6b, the upper horizontal face 3c, the vertical face 3b, and the upright piece 6a of the rain hold-down fitting 6, which becomes the lower horizontal face of the groove 3, is filled with the second sealing material 9, The waterproof structure is completed.

[0030]

As described above in detail, in the waterproof structure according to the present invention, the first sealing material is arranged between the vertical surface of the groove formed in the outer wall panel and the upright piece of the rain gutter,
In addition, by arranging the second sealing material between the upper horizontal surface of the groove and the horizontal piece of the rain gutter, the joint length between the second sealing material and the upper horizontal surface is short and water may enter. However, this water can be blocked by the first sealing material, and thereby waterproofness to the indoor side can be secured.

As described above, according to the present invention, the gap between the vertical surface at the innermost portion of the groove and the upright piece of the rain holding metal fitting, which has not been conventionally considered, is made to function as a seal portion. Even when the length of the upper horizontal plane is short, reliable sealing performance can be ensured. For this reason, even if the surface of the outer wall panel has irregularities processed to improve the aesthetic appearance, it can be handled in a good state.

Therefore, stable waterproof performance can be ensured regardless of the design of the outer wall panel and the presence or absence of the design, and the design is not spoiled for waterproof construction. This means that it is not necessary to use a special panel for the outer wall panel corresponding to the waterproofing construction site, and it is possible to simplify the process by eliminating the dedicated panel and to simplify the storage management. I can do it.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view schematically illustrating a configuration of a waterproof structure.

FIG. 2 is a diagram illustrating a configuration of a rain holding bracket.

FIG. 3 is a diagram illustrating a procedure for forming a joint between the outer wall panel and the roof.

FIG. 4 is a diagram for explaining a procedure for forming a joint between an outer wall panel and a roof.

FIG. 5 is a diagram illustrating an example of a flat roof and a sloped roof.

FIG. 6 is a diagram illustrating an example of a waterproof structure in a conventional joint.

[Explanation of symbols]

 A Joining part 1 Outer wall panel 2 Roof 3 Groove 3a Lower horizontal plane 3b Vertical plane 3c Upper horizontal plane 4a Roofing material 4b Screw 4c Base material 5 Roofing 6 Rain retaining fitting 6a Standing piece 6b Horizontal piece 6c Step piece 6d Second horizontal piece 7 1 sealing material 9 second sealing material

Claims (1)

[Claims] 1. A waterproof structure for a joint portion of a roof including an outer wall panel and a sloped roof or a flat roof, wherein at least an upright piece and a horizontal piece are provided at an end of a groove formed in the outer wall panel in parallel with the roof surface. The upright piece and the horizontal piece of the formed rain holding metal fitting are fitted, and a first sealing material is disposed between the vertical surface of the groove and the rising piece of the rain holding metal fitting, and the upper horizontal surface of the groove and the rain holding metal fitting are arranged. A waterproof structure for an outer wall panel and a roof joint portion, wherein a second sealing material is disposed between the horizontal member and the horizontal piece.