JP4107404B2 - Waterproof structure under the front sash - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof structure under a front sash.
[0002]
[Prior art]
The front sash placed on the outer peripheral wall of the first floor of the building with the basement, the veranda on the middle floor, and the lower part of the front sash placed on the wall facing the balcony prevent intrusion of rainwater into the room and the floor of the building Therefore, the waterproof construction shown in FIG. 6 is performed.
According to this figure, the concrete frame 4 is placed at a position where the front sash is disposed on the slab 2, and the lower frame 8 a of the front sash 8 is fixed in a state where the sash syanka 6 is embedded in the concrete frame 4.
[0003]
A waterproof sheet 10 is laid on the slab 2 on the outdoor side of the frame concrete 4, and its end 10 a rises along the frame concrete 4.
A presser concrete 12 is placed in layers on the waterproof sheet 10, and a floor finish 14 is provided on the presser concrete 12.
On the slab 2 on the indoor side of the frame concrete 4, the reinforced concrete 16 is placed in a layered manner, and the floor finishing material 14 is provided on the reinforced slab 16 in a layered manner.
[0004]
A sealing material 20 is filled between the lower part of the lower frame 8a facing the outdoor side and the frame concrete 4 to maintain liquid tightness, and the end portion 10a of the waterproof sheet 10 is formed of the presser concrete 12 and the frame concrete 4. It is covered from above with a protective buffer material 18 made of a resin material such as foamed polyethylene. A sealing material 20 is filled between the lower frame 8a of the front sash 8 and the floor finishing material 14 on the outdoor side and the indoor side to maintain liquid tightness.
[0005]
[Problems to be solved by the invention]
However, in the waterproof structure under the front sash having the above structure, if the sealing material 20 disposed on the outdoor side and the indoor side of the lower frame 8a loses its liquid-tightness due to deterioration with time, the lower frame 8a When rainwater or other water infiltrates into the lower part, there is a risk of leakage from the slab 2 to the downstairs or underground, and if water accumulates on the bottom surface of the waterproof sheet 10, the slab 2 may enter the downstairs or underground. While water leaks, the waterproof sheet 10 may deteriorate early.
[0006]
The present invention has been made in view of the above circumstances, and water such as rainwater that has entered from the sash lower frame side is quickly drained to the outside to ensure leakage of water to the lower side of the sash lower frame as well as the indoor side. An object of the present invention is to provide a waterproof structure under the front sash that can be prevented.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is directed to placing sash fixing concrete on a slab that is a boundary position between the indoor side and the outdoor side of a building, and fixing the sash lower frame to the sash fixing concrete. A sash is disposed, and a waterproof sheet is laid on the outdoor slab or the indoor slab, and the sheet end of the waterproof sheet is disposed so as to rise along the side of the sash fixing concrete. Alternatively, after arranging the sheet end of the waterproof sheet at the lower part of the sash, the sheet is arranged so as to rise along the indoor rising concrete part, and a protective cushioning material is arranged to cover the sheet end, A presser concrete is placed on the waterproof sheet in contact with the cushioning material, and a floor finishing material is disposed on the presser concrete, and the floor finish and the pad are disposed. In the waterproof structure of the lower portion of the front sash, in which a gap between the lower frame and the lower frame is filled, the protective cushioning material includes a mesh-like fiber-shaped water-permeable portion and an elastic buffer fixed to the water-permeable portion in layers. And the buffer portion is arranged so as to be in contact with the presser concrete, and water such as rainwater that has entered from the vicinity of the lower frame of the sash passes through the water-permeable portion and quickly flows downward. A drainage channel having a drainage opening at the bottom of the protective cushioning material is disposed on the boundary surface between the waterproof sheet and the presser concrete.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment according to the present invention will be described below with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same component as the structure shown in FIG. 6, and the description is abbreviate | omitted.
In the present embodiment, the lower frame 8 a of the front sash 8 is fixed with the frame concrete 4, and a protective cushioning material 22 is disposed between the presser concrete 12 and the frame concrete 4 to protect the end portion 10 a of the waterproof sheet 10. Has been.
[0009]
As shown in FIG. 2, the protective cushioning material 22 is a net-like fibrous body made of a synthetic resin such as Hetimaron (trade name) and is formed in a plate shape, and on the upper and lower surfaces of the water-permeable portion 24. It is comprised by the two buffer parts 26 which consist of synthetic resin materials, such as foaming polyethylene stuck in the layer form. Here, reference numeral 28 in FIG. 2 is a curing tape. This curing tape 28 prevents the concrete from flowing into the water permeable portion 24 when the presser concrete 12 is placed. Removed after installation is complete.
[0010]
In addition, a plurality of drain pipes 30 having one end opening directed to the protective cushioning material 22 are disposed at a lower portion of the presser concrete 12 with a predetermined interval with a downward slope as the distance from the protective cushioning material 22 increases. Yes.
The construction procedure of the above structure is to protect the slab 2 after the slab 2 is fixed, the sash syanka 6 is fixed to the anchor standing up from the slab 2, the concrete slab 4 is placed, the front sash 8 is assembled, and the waterproof sheet 10 is laid. After the buffer material 22 is disposed and the presser concrete 12 is placed, the floor finishing material 14 is disposed and the sealing material 20 is filled.
[0011]
According to the above configuration, even if the sealing material 20 disposed on the outdoor side and the indoor side of the lower frame 8a loses liquid-tightness due to deterioration with time and water such as rainwater enters from above, the water remains in the permeable portion 24. The inside of the mesh fibers penetrates to the lower side and flows onto the waterproof sheet 10 at the lower part of the front sash 8. And the water which flowed on the waterproof sheet 10 is discharged | emitted through the drain pipe 30 outside.
[0012]
In this way, the water that flows into the lower portion of the front sash 8 flows quickly to the outside away from the lower portion of the front sash 8, so that water does not accumulate on the slab 2, and there is a risk of water leaking downstairs or underground. In addition to the elimination, water does not reach the lower surface of the waterproof sheet 10, so that the durability of the waterproof sheet 10 is improved.
In addition, since the sash cyan 6 embedded in the concrete frame 4 is reliably prevented from coming into contact with water, rusting of the sash cyan 6 is prevented and the durability of the aluminum sash 8 is improved.
[0013]
In addition, when placing the presser concrete 12, the buffer part 26 is interposed between the water permeable part 24 and the presser concrete 12, so that the slag of the presser concrete 12 enters the mesh fibers of the water permeable part 24. Inconveniences such as deterioration of the water permeability of the water permeable portion 24 do not occur.
Next, a second embodiment according to the present invention will be described with reference to FIG. In this embodiment, the same components as those described in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.
[0014]
In this embodiment, the waterproof sheet 10 extends to the indoor side, and the lower frame 8a of the front sash 8 is fixed by the foundation pressing concrete 13 and the mortar 15 placed on the waterproof sheet 10, and the room An end 10a rises along the step surface of the slab 2 provided with a step higher than the outside.
A protective cushioning material 22 is disposed between the presser concrete 12 and the foundation presser concrete 13, and a buffer layer 26 and a water permeable portion 24 are disposed between the foundation presser concrete 13 and the slab 2. A protective cushioning material 33 is provided. Here, the protective cushioning material 33 is disposed in a state in which the cushioning portion 36 is in contact with the presser concrete 13 and the water permeable portion 24 covers the end portion 10a of the waterproof sheet 10 from above. A cover member 32 that covers the mortar 15, the presser concrete for foundation 13, and the protective cushioning material 33 is fixed on the indoor side of the front sash 8.
[0015]
The construction procedure of the above structure is to construct the slab 2, perform the laying work of the waterproof sheet 10, dispose the protective cushioning material 33 and the drain pipe 30 on the rising portion side of the slab 2, and place the presser foot concrete 13 Then, after placing the mortar 15 on the foundation presser concrete 13 and burying the anchor, placing the protective cushioning material 22 along the presser concrete 13 for the foundation, and placing the presser concrete 12, The finishing material 14 is disposed, the sealing material 20 is filled, and the cover member 32 is attached.
[0016]
According to the above configuration, even if water such as rainwater enters the lower part of the cover member 32 and flows to the protective cushioning material 33 side, the water permeates the lower part side through the mesh fibers of the water permeable portion 24. Then, it immediately flows on the waterproof sheet 10. Further, even if the outdoor sealing material 20 deteriorates and water enters the lower side, the water-permeable portion 24 of the protective cushioning material 22 quickly flows the water downward and guides it onto the waterproof sheet 10. Then, the water on the waterproof sheet 10 is discharged to the outside through the drain pipe 30.
[0017]
In this way, the water that flows into the outside of the front sash 8 or the lower part on the indoor side quickly flows to the outside away from the lower part of the front sash 8, so that water does not accumulate on the slab 2, and downstairs or underground The possibility of water leakage to the water is eliminated, and water does not reach the bottom surface of the waterproof sheet 10, so that the durability of the waterproof sheet 10 is improved, the rusting of the sash sianka 6 is prevented, and the durability of the aluminum sash 8 is also improved. To do.
[0018]
Further, when placing the presser concrete 12 and the presser concrete 13 for the foundation, the buffer portion 26 is interposed between the concrete and the water permeable portion 24, so There is no inconvenience such as intrusion into the mesh fibers and deterioration of the water permeability of the water permeable portion 24.
Here, what is shown in FIG. 4 shows another structure which maintains liquid-tightness without disposing the protective buffer material 22 between the presser concrete 12 and the presser concrete 13 for foundation. In this structure, the drainage pipe 31 is disposed upright on the end side of the foundation concrete 13, and the presser concrete 12 is placed so as not to close the upper opening 31 a and the lower opening 31 b of the drainage pipe 31. To do. The presser concrete 12 is provided with a step 12a, and the upper opening 1a is opened at the step 12a. Then, the water-permeable material 27 made of the same material as the water-permeable portion 24 described above is placed on the step 12 a, and the sealing material 20 is filled on the water-permeable material 27 via the backup material 29. With the above structure, even if the sealing material 20 on the outdoor side deteriorates and water flows downward, the water quickly flows on the waterproof sheet 10 through the water permeable material 27 and the drain pipe 31. .
[0019]
Next, a third embodiment according to the present invention will be described with reference to FIG.
In this embodiment, the lower frame 8 a of the front sash 8 is fixed by the frame concrete 4 placed on the slab 2, and the end 32 a is laid on the outdoor slab 2 and along the frame concrete 4. A first waterproof sheet 32 that is standing up and a second waterproof sheet 34 that is laid on the indoor slab 2 and has an end 34a rising along the frame concrete 4 are provided.
[0020]
The buffer portion 26 is in contact with the presser concrete 12 between the presser concrete 12 and the frame concrete 4 on the outdoor side, and a protective buffer material 33 composed of a two-layer member of the buffer portion 26 and the water permeable portion 24 is disposed. In addition, the buffer portion 26 is in contact with the presser concrete 12 between the presser concrete 12 and the frame concrete 4 on the indoor side, and a protective buffer material 33 composed of a two-layer member of the buffer portion 26 and the water permeable portion 24 is disposed. ing.
[0021]
The construction procedure of the above-described structure is that the slab 2 is constructed, the sash yanka 6 is fixed to the anchor standing up from the slab 2, the sash concrete 4 is placed, the front sash 8 is assembled, and the first and second waterproofing is performed. After laying the sheets 32 and 34, disposing the protective cushioning material 33 at the rising portion of the concrete frame 4 and placing the presser concrete 12, placing the floor finishing material 14 and filling the sealing material 20 I do.
[0022]
According to the above configuration, even when rainwater or the like enters the lower part due to deterioration of the sealing member 20 and flows to the protective cushioning material 33 side, the water permeates the lower part through the mesh fibers of the water permeable portion 24. Since it flows promptly on the waterproof sheet 10 and in the drain pipe 30, it is possible to obtain the same effect as the above embodiment.
[0023]
【The invention's effect】
As described above, according to the present invention, even if the sealing material loses its liquid-tightness due to deterioration over time and water such as rainwater infiltrates downward, the water remains in the protective buffer material having water permeability. As soon as it penetrates, it flows on the waterproof sheet and drainage channel. This eliminates the risk of water leaking downstairs or underground.
[0024]
Also, when placing the presser foot concrete, a buffer part is interposed between the concrete and the water permeable part, so that the bottom of the presser concrete enters the mesh fibers of the water permeable part and the water permeability of the water permeable part. Inconveniences such as deterioration will not occur.
Furthermore, since the water that has flowed to the lower portion of the protective cushioning material immediately flows to a position away from the lower portion of the front sash through the drainage channel, the waterproof structure of the lower portion of the front sash can be maintained for a long time.
[Brief description of the drawings]
FIG. 1 is a diagram showing a first embodiment according to the present invention.
FIG. 2 is a view showing a specific structure of a protective cushioning material according to the present invention.
FIG. 3 is a diagram showing a second embodiment according to the present invention.
4 is a view showing a waterproof structure that does not use a protective cushioning material in FIG. 3;
FIG. 5 is a diagram showing a third embodiment according to the present invention.
FIG. 6 is a view showing a lower waterproof structure of a conventional front sash.
[Explanation of symbols]
2 Slab 4 Frame concrete (sash fixing concrete)
8a Lower frame (sash lower frame)
8 Front sash 10, 32, 34 Waterproof sheet 10a, 32a, 34a End of waterproof sheet (sheet end)
12 Pressing concrete 14 Floor finishing material 20 Sealing material 22, 33 Protective cushioning material 24 Water permeable portion 26 Buffer portion 30, 31 Drain pipe (drainage channel)

Claims (1)

The sash fixing concrete is placed on the slab that is the boundary position between the indoor side and the outdoor side of the building, and the front sash is arranged by fixing the sash lower frame to the sash fixing concrete, and on the slab on the outdoor side. Alternatively, a waterproof sheet is laid on the indoor slab, and the sheet end of the waterproof sheet is arranged so as to rise along the side of the sash fixing concrete, or the sheet end of the waterproof sheet is Arranged so as to rise along the indoor rising concrete portion after being arranged at the lower portion of the sash, a protective cushioning material is arranged so as to cover the end of the sheet, and in contact with the protective cushioning material, on the waterproof sheet Placing the presser concrete, placing the floor finish on the presser concrete, and filling the gap between the floor finish and the sash lower frame In front sash bottom of the waterproof structure comprising Te,
The protective cushioning material is composed of a net-like fiber-shaped water-permeable portion and an elastic buffer portion fixed in layers to the water-permeable portion, and the buffer portion is disposed so as to contact the presser concrete, and the bottom of the sash While allowing water such as rainwater that has entered from the vicinity of the frame to flow quickly through the water-permeable portion,
A waterproof structure for the lower portion of the front sash, wherein a drainage channel having a drainage opening at a lower portion of the protective cushioning material is disposed on a boundary surface between the waterproof sheet and the presser concrete.

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