JPH0426577Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a rain protection structure at the joint between the roof of a lower house and the outer wall, particularly the outer wall of a lightweight concrete panel.

[Conventional technology] Conventionally, rain protection at the joint between the roof of a lower building and the exterior wall has been the most important part in terms of waterproofing a building, and it has been considered the most difficult problem to perform complete rain protection at this joint. There is.

By the way, in the conventional rain protection structure at the joint between the outer wall and the roof of the lower house using lightweight concrete panels, as shown in Fig. 2, the roof of the lower house 1
A structure was adopted in which a groove 3 was cut in the outer wall 2 made of a lightweight concrete panel to be joined to the groove 3, one end of a draining plate 4 was embedded in the groove 3, and a caulking material 5 was filled.

However, lightweight concrete panels have a high water absorption rate due to their nature, and the caulking material 5 in the groove 3 portion
If a crack occurs in the groove, or if a slight gap is formed between the caulking material 5 and the lightweight concrete panel 2 or the draining plate 4, rainwater or the like will infiltrate through the crack, etc., and water will infiltrate from the groove 3. There was a problem in that the lightweight concrete panel 2 absorbed rainwater and the absorbed rainwater flooded indoors and the like.

Therefore, in order to avoid the need to provide grooves 3, etc. in the lightweight concrete panel 2, a separate wall material, etc. is installed continuously at the lower end of the lightweight concrete panel 2, and this continuous section is filled with caulking material, etc. ,
It is also conceivable to attach a single draining board to the surface of this wall material, etc.

[Problems to be solved by the invention] However, with only the above-mentioned rain cover structure, cracks may occur in the caulking material 5 due to long-term wind pressure, vibration, or weathering due to ultraviolet rays, etc., and the lower end of the lightweight concrete panel may crack. There may be a gap between the wall material, etc., and rainwater may enter through these cracks or leaks may occur.

In addition, since the conventional means shown in Fig. 2 is carried out on-site, trench cutting and caulking material filling work are not necessarily done uniformly, and even if a small hole is formed, rainwater may drain from the hole. There was a problem with intrusion.

This idea was made in view of the above circumstances, and aims to provide a rain cover structure that prolongs the waterproof function of caulking materials and the like and allows reliable rain cover.

[Means for Solving the Problems] The rain protection structure according to this invention is such that, at the joint between the lower roof and the outer wall, the outer wall is connected to a lightweight concrete panel and a wall connected to the lower end of the lightweight concrete panel. The space between the upper end of the wall material and the lower end of the lightweight concrete panel is waterproofed with caulking material, sealant, etc., and a waterproof sheet is hung over the surface of the wall material. further, an upper draining plate is vertically disposed at the lower end of the lightweight concrete panel on the front side of the first waterproofing structure, and the upper edge of the upper draining plate and the lower end of the lightweight concrete panel are formed; A second waterproof structure is formed by waterproofing the space between the lower draining plate and the waterproof sheet, etc., with a caulking material or the like, and waterproofing the gap between the lower draining plate and the waterproof sheet, etc. It is something.

[Example] Hereinafter, an example of the rain protection device according to the invention will be described with reference to the drawings. FIG. 1 is a sectional view showing a case where a rain protection device according to an embodiment of this invention is applied to a joint between an outer wall 6 and a roof 7 of a lower house.

The outer wall 6 is composed of a lightweight cellular concrete panel 8 and a wall material 9 connected to the lower end of the lightweight cellular concrete panel 8.

The wall material 9 is made of a fireproof board mainly made of calcium silicate, and a plywood 10 is attached to the rear surface of the wall material 9.

Moreover, the first waterproof structure of the rain protection device of this invention is provided on the front surface of the wall material 9.

The first waterproof structure includes a first caulking reservoir 11 formed between the lower end of the lightweight concrete panel 8 and the upper end surface of the wall material 9, and a waterproof sheet 12 vertically disposed on the front surface of the wall material 9. It is made up of.

The first caulking reservoir 11 is surrounded by the lower end surface of the lightweight concrete panel 8, the upper end surface of the wall material 9, and the upper front surface of the plywood 10, and this caulking reservoir 11 is filled with caulking material 13. ing.

The waterproof sheet 12 is interposed between the upper end surface of the wall material 9 and the caulking material 13, and is attached to the front surface of the wall material 9 with a hanging portion 12a. It extends to the vicinity of the wall material 9 side end of the shedding board 14 on the roof 14.

Note that the waterproof sheet 12 may be made of felt, roofing, or the like.

Further, a roofing 1 is provided from the upper surface of the shedding board 14 of the shed roof 7 to the lower front part of the wall material 9.
5 is attached, and the upper surface of the roofing 15 on the wall material 9 side is covered with the hanging portion 12a of the waterproof sheet 12.

Further, a waterproof sheet 16 is stretched from the roofing 15 to the upper surface of the lower end portion 12a of the waterproof sheet 12. The roofing 15 may be made of felt or a waterproof sheet, and the waterproof sheet 16 may be made of felt or roofing.

Furthermore, a receiving material 17 is attached to the upper surface of the field board 14 to which the roofing 15 is attached.

Also, from the upper surface of the field board 14 to the receiving material 17
A scrap metal plate 18 is attached to the upper surface and the lower half of the hanging portion 12a of the waterproof sheet 12, and the tip of the rising portion 18a of the scrap metal plate 18 is bent outward.

In addition, the scrap metal 18 is clamped between the upper surface of the field board 14 to which the scrap metal 18 is attached and the front end surface of the receiving material 17, so that it is flush with the upper surface of the receiving material 17. The roof is covered with flat tiles 19.

In addition, a middle part 20 is attached to the upper surface of the receiving material 17 and the roof tile 19, and a second waterproof structure is provided above the middle part 20 in front of the first waterproof structure such as the waterproof sheet 12. There is.

The second waterproof structure includes the waterproof sheet 12 at the lower end of the lightweight aerated concrete panel 8.
an upper draining plate 21 having a hanging part 21a vertically installed in front of the roof tile 19; a second caulking reservoir 22 formed on the upper part of the upper draining plate 21;
From the surface through the upper surface of the middle plate 20, the upper draining plate 2
It consists of a lower draining plate 23 formed with a rising part 23a disposed on the inner surface side of the hanging part 21a of No. 1, and a third caulking reservoir 24 formed on the upper part of the rising part 23a.

The upper draining board 21 has its hanging portion 21a fixed to the wall material 9 by fixing nails 26 on the outer side of a ridge 25 attached to the front surface of the wall material 9.

Furthermore, a key piece 21b bent inward to have a key-shaped cross section is formed at the tip of the hanging portion 21a.

Further, a second caulking reservoir 22 formed between the upper surface 21c of the upper draining plate 21 and the lower end surface of the lightweight cellular concrete panel 8 is filled with a caulking material 27.

Further, the lower draining plate 23 is formed in a two-stage L-shape when viewed in cross section, with a first horizontal part 23c on the upper surface of the tile 19 and a second horizontal part 23c stretched on the upper surface of the middle plate 20.
It consists of a stepped horizontal portion 23b and a rising portion 23a.

Further, the lower draining board 23 has its rising portion 23a connected to a ridge 2 attached to the wall material 9.
8 with fixing nails 29 and attached to wall material 9.

Further, the rising portion 2 of the lower draining plate 23
The tip of 3a is bent outward to form a key piece 23d, and the tip of this key piece 23d is brought into contact with the back surface of the hanging portion 21a of the upper draining plate 21.

Further, the rising portion 2 of the lower draining plate 23
3a, the upper surface of the ridge 28, and the waterproof sheet 1
2 and a third caulking reservoir 24 formed between
is filled with caulking material 30.

Next, a method of constructing the rain protection structure of the above embodiment will be explained.

At the joint between the outer wall 6 with the wall material 9 connected to the lower end of the lightweight aerated concrete panel 8 and the lower roof 7, roofing 15 is first stretched from the top surface of the shedding board 14 to the lower surface of the wall material 9. do.

Next, a waterproof sheet 12 is stretched from the upper end of the wall material 9 to the lower front surface of the wall material 9, and the lower end of the hanging portion 12a of the waterproof sheet 12 is connected to the rising portion of the roofing 15 and the wall of the roofing 15. The area near the upper surface of the material 9 is covered.

Furthermore, a waterproof sheet 16 is additionally pasted from the upper surface of the roofing 15 to the upper surface of the lower end portion of the hanging portion 12a of the waterproof sheet 12.

Next, a first caulking reservoir 11 provided between the upper end surface of the wall material 9 and the lower end surface of the lightweight aerated concrete panel 8 is filled with caulking material 13. First, the first waterproof structure is formed on the front surface of the wall material 9 as described above.

Next, at the corner between the roof 7 and the wall material 9, a receiving material 1 is placed near the wall material 9 on the upper surface of the waterproof sheet 16.
7 and from the upper surface of the lower house roof 7 to the upper surface of the receiving material 17 and the front of the wall material 9.
8 and the vertical part 12 of the prevention sheet 12
The rising portion 18a is attached so as to cover the portion a.

Next, a flat tile 19 is placed on the upper surface of the water-resistant sheet 16 on the lower house roof 7 with a metal scrap 18 interposed between the outer end surface of the receiving material 17, and the upper surface of this tile 19 and the outer end surface of the receiving material 17 are covered. Make sure it is flush with the top surface.

Further, a center piece 20 is attached to the top surface of the roof tile 19 and the receiving material 17 so as to sandwich the scrap metal plate 18, and a ridge 28 is provided on the top surface of the center hole 20. In this case, the hanging portion 12a of the waterproof sheet 12 and the rising portion 18a of the scrap metal plate 18 are interposed between the ridge 28 and the wall material 9.

Next, a lower draining plate 23 is placed from the tile 19 surface to the upper surface of the middle plate 20 and the outer surface of the ridge 28,
The rising portion 23a of the lower draining plate 23 is attached and fixed to the wall material 9 together with the ridge 28 using fixing nails 29.

In this case, the rising portion 2 of the lower draining plate 23
A key piece 23d formed at the tip of the key 3a is placed close to the back surface of the hanging portion 21a of the upper draining plate 21.

Furthermore, the upper end surface of the ridge 28 and the lower draining plate 2
The tip of the rising portion 23a of No. 3 and the waterproof sheet 1
A third caulking reservoir 24 formed with the vertically extending portions 12a of 2 is filled with caulking material 30.

Next, the ridge 25 is placed on the upper front surface of the wall material 9, and the hanging portion 21a of the upper draining board 21 is attached and fixed together with the ridge 25 using fixing nails 26.

In this case, the hanging portion 12a of the waterproof sheet 12 is interposed between the ridge 25 and the wall material 9.

Next, a third caulking reservoir 22 formed between the upper surface 21c of the upper draining plate 21 and the lower end surface of the lightweight cellular concrete panel 8 is filled with caulking material 27. In this way, the second waterproof structure is formed.

In the rain protection structure of the above embodiment, a wall material 9 is connected to the lower end of the lightweight aerated concrete panel 8, and since no groove is formed in the concrete panel 8 for filling caulking material, etc., rainwater etc. There is no risk of flooding.

Further, a first waterproof structure is further provided on the inside of the second waterproof structure on the front surface of the wall material 9, and since the structure has a double waterproof structure, it is possible to reliably prevent intrusion of rainwater, etc.

That is, in the second waterproof structure, the second caulking reservoir 22 formed between the lower end surface of the lightweight aerated concrete panel 8 and the ridge 25 is filled with a caulking material 27, and the caulking material 27 and the ridge 25 are In between is the upper draining board 21
c is installed, even if caulking material 2
Even if a crack or the like occurs in the upper drain plate 7, the upper surface 21c of the upper draining plate 21 prevents water from entering.

In this way, the structure of the upper drain plate 21 alone can sufficiently prevent water from entering.

Also, the hanging portion 21a of this upper draining plate 21
The rainwater that has flowed down falls onto the second level horizontal portion 23b of the lower draining plate 23 and flows down onto the tiles 19. Moreover, the key piece 21b of the hanging part 21a of the upper draining plate 21
In addition, a rising portion 23c of the lower draining plate 23 is provided inside this hanging portion 21a, and since there is also a key piece 23d, the upper draining plate 21
Rainwater, etc. that falls down the hanging part 21a will not blow up and intrude.

Moreover, even if the hanging part 21a of the upper draining plate 21
Even if rainwater enters from the lower end due to blowing up, etc., the rainwater is blocked by the key piece 23d of the lower draining plate 23 or the caulking material 30 filled in the third caulking reservoir 24, preventing water from infiltrating beyond that point. be done.

Further, even if water leaks through the caulking material 30, since the ridge 28 and the waterproof sheet 12 are in close contact with each other, no further water will leak.

Further, even if rainwater or the like intrudes from the third caulking reservoir 24, it is blocked by the waste metal sheet 18 or the waterproof sheet 16, and is reliably prevented from entering the house.

As described above, even if only the second waterproof structure is used, multiple layers of waterproofing means are employed, so that intrusion of rainwater, etc. can be reliably prevented.

In addition, if the upper drain plate 2 of the second waterproof structure is
Even if rainwater etc. enters from one part etc., the first caulking reservoir 11, which is one of the first waterproof structures, or the waterproof sheet 12 is provided, so this prevents rainwater etc. from entering. Even if the caulking material 30 of the caulking reservoir 24 or invading this part, the vertical part 12a of the waterproof sheet 12,
Intrusion of rainwater etc. is prevented by the waste metal plate 18 and the like.

As mentioned above, the first and second waterproof structures are used, and even if only between the respective component parts of the second waterproof structure, the intrusion of rainwater, etc. can be mutually complemented and prevented, and even if the second waterproof structure is penetrated, The first waterproof structure also ensures that rainwater is prevented from entering.

In addition, since there is a second waterproof structure, the caulking material 13, waterproof sheet 12, etc. in the first caulking reservoir 11 of the first waterproof structure are not directly exposed to wind and rain, and are not subject to weathering effects. 13 etc. can maintain waterproof function for a long period of time.

In addition, since there is no need to cut grooves in the outer wall 6, etc. during on-site construction, on-site construction can be performed uniformly, and the reliability of the rain cover structure is high.

Further, since the wall material 9 is made of a fireproof board, the outer wall 6 has excellent fireproof performance.

Note that the waterproof sheets 12, 1 in the above embodiments
6, roofing 15, etc. are not restricted by their names, but include any material having waterproofness or water resistance, such as felt.

In addition, in the above example, caulking material was used as a filling material for the caulking reservoir, but of course, various sealing materials such as silicone-based, acrylic-based, butyl rubber-based, etc. can also be applied, and in short, they are used for purposes such as waterproofing. Any filler that can be used is fine.

[Effects of the invention] As explained above, the rain protection structure according to this invention consists of a lightweight concrete panel and a wall material connected to the lower end of the lightweight concrete panel for the exterior wall at the joint between the roof of the lower house and the exterior wall. Since the first waterproof structure and the second waterproof structure are formed at the lower end of the lightweight concrete panel and in front of the wall material, it is necessary to cut grooves etc. in the lightweight concrete panel as part of on-site construction. The finish is uniform and there are no holes. Therefore, lightweight concrete panels do not absorb rainwater, etc.
Rainwater, etc. will no longer infiltrate.

In addition, since the second waterproof structure is formed in front of the first waterproof structure and double waterproofing means is formed, even if water enters from the second waterproof structure, it will be blocked by the first waterproof structure, ensuring reliable waterproofing. It will be planned.

Moreover, because the first waterproof structure is not exposed to the wind and rain due to the second waterproof structure and is not subject to weathering effects, the caulking material of the first waterproof structure is less likely to deteriorate and maintains its waterproof function over a long period of time. can be retained.

In addition, the second waterproof structure is formed by an upper draining plate vertically installed at the lower end of the lightweight concrete panel, a lower draining plate having a rising part disposed on the inner surface of the upper draining plate, and an upper draining plate Since the structure is such that the space between the upper draining plate and the lightweight concrete panel is waterproofed with caulking material, and the space between the lower draining plate and the waterproof sheet of the first waterproof structure is waterproofed, the area near the upper draining plate is definitely waterproof.

Even if water enters from this part, it can be waterproofed by the waterproofing means near the lower drain plate.

In addition, even if water floods from the second waterproof structure, the waterproof means above the first waterproof structure will block the water, and even if water floods from that part, rainwater, etc. that has fallen through the waterproof sheet of the first waterproof structure will be prevented. Intrusion is blocked by the caulking material of the second waterproof structure or the lower drain plate.

In addition, even if rainwater etc. enters from between the lower draining board and the upper draining board due to blow-up, etc., it will be blocked by the caulking material of the second waterproof structure or the waterproof sheet of the first waterproof structure, and water will not flood into the house etc. Never.

As described above, since the first waterproof structure and the second waterproof structure complement each other and employ multiple waterproofing means, reliable rain protection can be achieved.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the rain protection structure according to this invention, and FIG. 2 is a sectional view showing a conventional example. 6...Outer wall, 7...Lower roof, 8...Lightweight concrete panel, 9...Wall material, 12...Waterproof sheet, 21...Upper draining board, 23...Lower draining board, 23a...Rising part .

Claims (1)

[Scope of utility model registration request] At the joint between the lower roof and the outer wall, the outer wall is composed of a lightweight concrete panel and a wall material connected to the lower end of the lightweight concrete panel,
On the front side of the wall material, there is a waterproof wall between the upper end of the wall material and the lower end of the lightweight concrete panel with a caulking material, a sealant, etc., and a waterproof sheet or the like suspended above the surface of the wall material. 1 waterproof structure is formed, and on the front surface of the first waterproof structure, an upper draining plate is vertically disposed at the lower end of the lightweight concrete panel, and the upper edge of the upper draining plate and the lower end of the lightweight concrete panel are connected to each other. A second waterproof structure is formed that waterproofs the space between the lower draining plate having a rising part attached to the roof of the lower house and disposed on the inner surface of the upper draining plate, and the waterproof sheet, etc. A rain-proof structure that is characterized by its ability to be closed in the rain.