JP3413262B2 - Waterproof structure of overhanging roof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for an overhanging roof that is arranged so as to project from the outer wall surface of a building, and can be used for rain treatment of overhanging roofs such as entrance canopies, eaves and eaves.

[0002]

[Background Art] Conventionally, an overhanging roof that is placed overhanging from the outer wall is formed on the outer wall of a building, such as an eave installed above an entrance, a doorway, a window, a terrace or porch. There is. Such a crossing position between the roof surface and the outer wall surface of the overhanging roof is usually waterproofed to prevent rain. And the waterproof structure of this part is a structure in which the part near the intersection of the outer wall material forming the outer wall surface is cut at the site or in the factory, and the cut part is provided with a draining material, a sealing material filling, etc. Has become.

[0003]

However, the above-mentioned waterproof structure has a problem that it requires a lot of work because a relatively large-scale cutting operation must be performed on site or in the factory. In particular, when the outer wall material is lightweight cellular concrete with an uneven pattern on the surface, a deeper and larger cutting portion is required for waterproofing, so the cutting amount increases and it is extremely difficult to cut. Takes time,
Alternatively, there is a problem that a thin outer wall material cannot be used from the viewpoint of strength.

An object of the present invention is to provide a waterproof structure for an overhanging roof which can reduce or eliminate the work of cutting the outer wall material and can be easily installed.

[0005]

DISCLOSURE OF THE INVENTION The present invention is intended to achieve the above-mentioned object by providing a gutter below a position where ordinary waterproofing is applied. Specifically, the waterproof structure for an overhanging roof according to the first aspect of the present invention is provided below an intersection position between an outer wall surface of a building and a roof surface of the overhanging roof that is arranged so as to project from the outer wall surface or an extension surface thereof. on the side, gutter are provided, wherein between the intersection and the gutter is in position water guide member for guiding the rain water or the like to the gutter has a predetermined distance apart is from the outer wall surface,
Provided opposite to the outer wall surface Rutotomoni, the water guide
The member is characterized in that it has an inclined portion whose lower side approaches the outer wall surface . Further, the waterproof structure of the overhanging roof according to the second aspect of the present invention is characterized in that waterproof treatment using a sealing material is applied to the intersecting position.

Further, the waterproof structure for the overhanging roof according to the third aspect of the present invention is characterized in that a part of the gutter is inserted and arranged on the indoor side with respect to the surface position of the outer wall surface. In addition, in the waterproof structure for the overhanging roof according to the fourth aspect of the present invention, the water guide member is inserted into the gutter.
It is characterized by having an entrance . And, in the waterproof structure for the overhanging roof according to the fifth aspect of the present invention, the gutter is a first gutter, and a second gutter is provided at an outer peripheral edge of the overhanging roof, and the first gutter and The second gutter is characterized by being connected by a water conduit.

[0007]

In the present invention as described above, the gutter is provided below the intersection of the outer wall surface of the building and the roof surface of the overhanging roof projecting from the outer wall surface or the extension surface thereof, Waterproof between the outer wall and the overhanging roof. With such a waterproof structure, when rainwater or the like enters the gap between the outer wall surface and the overhanging roof from the crossing position, the rainwater or the like is collected in a gutter provided below the crossing position, and the rainwater is collected from the gutter. Be drained.

Therefore, it is no longer necessary to form a complicated waterproof structure as in the prior art at the crossing position, which has been completely waterproofed including a relatively large-scale cutting work in the related art, and the waterproof structure is simple. If treated, it can be combined with the gutter provided on the lower side to obtain a sufficient waterproof effect as a whole. Therefore, the work of cutting the outer wall material at the intersecting position is reduced or unnecessary as compared with the conventional case. In particular,
When the outer wall material is a lightweight cellular concrete having an uneven pattern on the surface, it is possible to significantly reduce the amount of cutting, so the effect of reducing this cutting work becomes remarkable, and these achieve the above-mentioned object. .

Further, when waterproofing is applied to the intersecting position using a sealing material, more reliable waterproofing performance can be obtained in combination with the drainage function of the gutter provided below the intersecting position. Furthermore, when a part of the gutter is inserted and placed on the indoor side of the surface of the outer wall, rainwater that flows along the outer wall from the intersecting position enters the gap between the outer wall and the overhanging roof. Etc. are reliably guided inside the gutter and drained. When a water guide member for guiding rainwater or the like is provided between the intersecting position and the gutter, the rainwater or the like that has entered the gap between the outer wall surface and the overhanging roof from the intersecting position is prevented by this water guide member. It is surely guided inside the gutter and drained. Also, in addition to the gutter (first gutter) provided below the crossing position, a second gutter is provided on the outer peripheral edge of the overhanging roof, and these first gutter and second gutter are connected to the water pipe. In the case of communicating with each other, the rainwater collected in the first gutter and the second gutter can be collectively discharged to the outside.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a building 10 to which a waterproof structure of a projecting roof according to this embodiment is applied. The building 10 includes an entrance eaves 12 which is an overhanging roof protruding from the outer wall surface 11 to the outside, and an entrance 13 is below the entrance eaves 12. Between the entrance eaves 12 and the outer wall surface 11, waterproof treatment is applied from an intersection position 15 between the roof surface (top surface) 14 of the entrance eaves 12 and the outer wall surface 11 to a lower portion of the intersection position 15.

FIG. 2 shows a detailed cross section (cross section viewed from the X direction in FIG. 1) of the waterproof structure provided between the entrance canopy 12 and the outer wall surface 11. The outer wall surface 11 is formed by an outer wall material 17 made of lightweight cellular concrete having an uneven surface, and the dotted line in FIG. 2 along the outer wall surface 11 is
The grid-like grooves 16 corresponding to the concave and convex portions are shown.

The crossing position 15 is waterproofed by the following simple structure. The upper part of the entrance canopy 12
Frame 2 supported by bundle 21 so as to have a predetermined gradient
2 and plywood 23 arranged above the frame 22
And a waterproof sheet 24 arranged on the upper side of the plywood 23, and a roof material 25 arranged on the upper side of the waterproof sheet 24 to form the roof surface 14.

A receiving bar 26 is provided on an end portion of the roof member 25 on the outer wall surface 11 side, and a rain pressing member 28 is attached via a waterproof sheet 27 so as to cover the receiving bar 26. The rain presser material 28 has a cross-sectional shape that is bent at an acute angle, and is exposed along the roof surface 14 to be exposed to the outside 28A, and is disposed along the outer wall surface 11 to serve as the entrance 12. An insertion portion 28B that is inserted between the outer wall surface 11 and the outer wall surface 11 is provided.

Further, the inside of the rain presser material 28 (entrance eaves 12
On the side), a drainage draining material 29 is provided. This draining material 29 has a bent cross-sectional shape, and the roof surface 1
4 is arranged in parallel with the sandwiching portion 29A sandwiched between the plywood 23 and the waterproof sheet 24 and the inserting portion 28B of the rain-pressing material 28, that is, disposed along the outer wall surface 11 and vertically. And a hanging portion 29B that hangs in the direction.

The insertion portion 28B of the rain pressing material 28 and the outer wall surface 11
A solid sealing material 30 and a sealing material 31 injected and filled on the sealing material 30 are provided in the gap (including the groove 16 which is the concave and convex portion of the concave and convex pattern). There is. An Ept sealer or the like can be used as the sealing material 30, and a urethane sealing or the like that has fluidity at the time of filling and hardens when dried can be used as the sealing material 31.

A gutter 40, which is a first gutter, is provided below the intersecting position 15. The gutter 40 is a water receiving portion 40A having a substantially U-shaped cross section with an open upper side.
And the water receiving portion 40 disposed below the lower end portion of the outer wall member 17.
And a support portion 40B that supports A. Support part 40
The indoor end (the right side in FIG. 2) of the groove is inserted and arranged so as to be located further on the indoor side than the bottom surface position of the groove 16, and the water return projection 40C is provided at the end of the support portion 40. Are formed.

A solid sealing material 42 is provided between the supporting portion 40B of the gutter 40 and the lower end surface 18 of the outer wall material 17, and a sealing material is injected and filled outside the sealing material 42 (on the side of the entrance 12). And 43 are provided. For these sealing materials 42 and 43, the same materials as the above-mentioned sealing materials 30 and 31 can be used.

A water guide member 50 attached to the bundle 21 by rivets, bolts, welding or the like is provided above the water receiving portion 40A of the gutter 40. Water guide member 50
Are arranged over the entire length of the gutter 40 in the longitudinal direction and have a bent cross-sectional shape. The water guide member 50 includes an attachment portion 50A attached to the bundle 21 and a water receiving portion 40A of the gutter 40.
50B to be inserted into the inside of the
The oblique side portion 50C connecting the 0A and the insertion portion 50B is provided.

Returning to FIG. 1, a gutter 60, which is a second gutter, is provided on the outer peripheral edge of the entrance canopy 12 over three sides. In addition, a vertical gutter 61 communicating with the gutter 60 is provided on the outer wall surface 15 next to the entrance 13.

FIG. 3 shows the entrance canopy 1 viewed from the Y direction in FIG.
Two detailed cross sections are shown. The gutter 60 has a substantially U-shaped cross-sectional shape with an open upper side, and is arranged in a lower slope portion of the roof surface 14 formed by the roofing material 25.
A water guide member 62 that guides rainwater and the like flowing on the surface of each roof member 25 to the gutter 60 is provided further below the roof member 25 located on the lowermost slope side of the roof surface 14. Further, the first gutter 40 and the second gutter 60 are connected by a water conduit 63, so that rainwater collected in the gutter 40 flows from the water conduit 63 to the gutter 60. It has become.

In this embodiment as described above, drainage of rainwater or the like is performed as follows. First, most of the rainwater or the like that has reached the intersecting position 15 along the outer wall surface 11 is prevented from entering the gap between the outer wall surface 11 and the entrance canopy 12 by the sealing materials 30 and 31. Next, when rainwater or the like passes through the waterproof structure of the sealing materials 30 and 31 and enters the interior from the crossing position 15, the rainwater or the like is guided by the drainage draining member 29 and the water guide member 50 and the gutter 40. Be led to. In addition, the outer wall surface 11 located below the intersection 15
Rainwater, etc. coming down through the
As a result, they are prevented from entering the room and gather in the gutter 40. Then, the rainwater or the like collected in the gutter 40 flows to the gutter 60 through the water conduit 63, while the rainwater or the like flowing in the gradient direction along the roof surface 14 collects in the gutter 60. Rainwater and the like collected in these gutters 60 are drained to the outside from the vertical gutter 61.

According to this embodiment, the following effects are obtained. That is, since the gutter 40 is provided below the crossing position 15, when rainwater or the like enters the gap between the outer wall surface 11 and the entrance 12 from the crossing position 15, the rainwater or the like 40 Can be collected and drained. Therefore, it is not necessary to form a complicated waterproof structure at the crossing position 15 as in the conventional case, and if waterproof treatment of a simple structure is performed, a sufficient waterproof effect is obtained as a whole together with the drainage function of the gutter 40. Obtainable. Therefore, crossing position 1
Whether the cutting amount of the outer wall material 17 of No. 5 can be reduced as compared with the conventional one,
Alternatively, cutting work can be eliminated. And
Since the strength of the outer wall material 17 can be prevented from being reduced by cutting, the outer wall material 17 can be made thin.

At the crossing position 15, the sealing material 3
Since it is waterproofed with 0, 31 etc., the gutter 4
Combined with the drainage function of 0, more reliable waterproofing can be performed.

Further, the support portion 40B of the gutter 40 is arranged so as to be inserted to a position further inside the room than the bottom surface position of the groove 16 which is the concave and convex portion of the outer wall surface 11, and the support of the gutter 40. Since the sealing members 42 and 43 are provided between the portion 40B and the lower end surface 18 of the outer wall member 17, rainwater or the like that has entered from the intersection position 15 and has flowed along the outer wall surface 11 does not enter the room. In addition, it can be surely guided to the inside of the gutter 40. Since the water guide member 50 is provided between the crossing position 15 and the gutter 40, the crossing position 15
Therefore, rainwater or the like that has entered the gap between the outer wall surface 11 and the entrance canopy 12 can be reliably guided into the gutter 40 and discharged.

Further, since the gutter 60 is provided on the outer peripheral edge of the entrance shelter 12 and the gutter 60 and the gutter 40 are connected by the water guiding pipe 63, the rainwater collected in the gutter 40 is guided by the water guiding pipe 63. From the gutter 60 along with the rainwater that flows down the slope along the roof surface 14 and collects in the gutter 60.
It can be drained from 1 at a time.

The present invention is not limited to the above-mentioned embodiments, but includes other configurations that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. That is, in the above-mentioned embodiment, the waterproofing treatment with the simple structure is applied to the crossing position 15 by the sealing materials 30, 31 and the like, but the crossing position 15 is waterproofed by using the sealing material 30, 31 and the like. Need not be provided, and a gap may be formed between the outer wall surface 11 and the entrance canopy 12 as long as drainage can be performed only by the gutter 40.

In the above embodiment, the gutters 40 and 60 are
Although it had a substantially U-shaped cross section with an open upper part, the cross section of each of these gutters 40, 60 is arbitrary, such as a semicircular shape and an inverted triangular shape, and in short, receives rainwater and the like. Any shape can be used as long as it can be collected. The material of each gutter 40, 60 is arbitrary, such as plastic and metal, as long as it can maintain a predetermined shape.

Further, in the above embodiment, the outer wall material 17 is
Although the lightweight cellular concrete has an uneven pattern on the surface, the material of the outer wall material 17 is arbitrary and it is not necessary to form the uneven pattern on the surface.

Further, in the above-mentioned embodiment, the overhanging roof is the entrance canopy 12, but it may be an eaves canopy, a window eaves, or the roof of a simple garage provided adjacent to the building. In addition, the overhanging roof of the present invention may be a roof of a lower house, that is, any overhanging roof arranged to overhang the outer wall surface. However, the present invention is not one in which the living room is formed on the lower side such as the roof of the lower house, but one in which the living room is not formed on the lower side such as the entrance, the eaves, the window eaves, etc. That is, it is more preferable to apply it to the one that does not enter the living room even if rainwater or the like leaks below the gutter.

In the above embodiment, the water guiding member 50
However, the water guide member 50 may be omitted. However, by providing the water guide member 50, rainwater or the like can be guided to the gutter 40 more reliably.

Further, the sealing material 3 is provided at the intersection position 15.
In providing 0 and 31, the outer wall surface 11 may be cut to provide them, or the sealing materials 30 and 31 may be simply packed in the gap between the outer wall surface 11 and the entrance canopy 12 without cutting. May be. Further, when the outer wall surface 11 is cut, the cutting work may be performed in a factory or on the spot, and whichever place the cutting work is performed, the cutting work can be simpler than the conventional one. .

Further, the building 10 of the present invention may be a unit-type building or a building by a conventional construction method, that is, a building having an overhanging roof arranged so as to project from the outer wall surface. Good.

[0033]

As described above, according to the present invention, on the lower side of the intersection of the outer wall surface of the building and the roof surface or the extension surface of the overhanging roof projecting from the outer wall surface, A gutter is provided , and rainwater is proposed in the gutter between the intersection and the gutter.
Since the internal water guide member is provided for a specified distance from the outer wall surface, if the crossing position is not a complicated waterproof structure as in the past, but a simple structure is used for waterproofing, overall waterproof performance is sufficient. There is an effect that can be obtained.
In addition, when waterproofing is applied to the intersecting position using a sealing material, there is an effect that more reliable waterproofing performance can be obtained in combination with the drainage function of the gutter provided below the intersecting position.

Further, when a part of the gutter is inserted and arranged on the indoor side with respect to the surface position of the outer wall surface, it flows into the gap between the outer wall surface and the overhanging roof from the intersecting position and flows along the outer wall surface. There is an effect that the rainwater etc. that has been brought can be reliably guided to the inside of the gutter and drained. And the water guide member
However, if it has an insertion part to be inserted inside the gutter , rainwater etc. that has entered the gap between the outer wall surface and the overhanging roof from the intersecting position can be reliably guided to the inside of the gutter by this water guide member. The effect is that it can be drained.

Further, in addition to the gutter (first gutter) provided on the lower side of the intersecting position, a second gutter is provided on the outer peripheral edge of the overhanging roof, and the first gutter and the second gutter are provided. When the pipes are communicated with each other through the water conduit, there is an effect that the rainwater collected in the first gutter and the second gutter can be collectively discharged to the outside.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the present invention.

FIG. 2 is a detailed cross-sectional view showing a main part of the embodiment.

FIG. 3 is a detailed cross-sectional view of the main part of the embodiment as viewed from a direction different from that of FIG.

[Explanation of symbols]

10 buildings 11 outer wall 12 Eaves with overhanging roof 14 roof 15 Crossing position 30,31 sealing material 40 gutter (first gutter) 50 Water guide member 60 gutter (second gutter) 63 water conduit

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04D 13/14 E04B 7/02 501 E04D 3/40 E04D 13/064

Claims (5)

(57) [Claims] 1. A gutter is provided below an intersecting position between an outer wall surface of a building and a roof surface of an overhanging roof that is arranged so as to project from this outer wall surface or an extension surface thereof, and the intersecting position and the gutter are connected to each other. between at positions water guide member for guiding the rain water or the like is predetermined distance apart from the outer wall surface to the trough, on the outer wall surface
Opposing provided Rutotomoni, the water guide member lower side
Is provided with an inclined portion that approaches the outer wall surface, and the waterproof structure of the overhanging roof. 2. The waterproof structure for an overhanging roof according to claim 1, wherein the intersecting position is waterproofed with a sealing material. 3. The waterproof structure for an overhanging roof according to claim 1 or 2, wherein a part of the gutter is inserted and arranged on the indoor side with respect to the surface position of the outer wall surface. Waterproof structure of the overhanging roof. 4. The waterproof structure for an overhanging roof according to claim 1, wherein the water guide member is provided.
Is a waterproof structure for an overhanging roof, wherein the waterproof structure has an insertion portion to be inserted into the gutter . 5. The waterproof structure for an overhanging roof according to claim 1, wherein the gutter is a first gutter, and a second gutter is provided on an outer peripheral edge of the overhanging roof. The waterproof structure of the overhanging roof is characterized in that the first gutter and the second gutter are connected by a water conduit.