JP2001279806A - Floor structure of roof balcony and water proof pan therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make easy execution of work and improve a water proof characteristic. SOLUTION: A square water proof pan 1 in which a drainage part and a plurality of support protrusions 1a, 1b, 1d are formed at a floor surface is layed on a floor surface of a roof balcony. Surface materials 2a, 2b are arranged vertically and horizontally on the protrusions 1a, 1b, 1d and a drainage pipe is connected to the drainage part. Preferably, along an edge of the pan 1, drainage surface materials having a plurality of water passing spaces therein are arranged and placed. Rainwater or the like passing through the gaps between the surface materials and the water passing spaces of the drainage surface materials is discharged from the drainage pipe through the drianage part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof balcony floor structure which is easy to construct and has no risk of water leakage, and a waterproof pan thereof.

[0002]

2. Description of the Related Art As a conventional floor structure of a roof balcony, there is known a structure in which a waterproof sheet is further spread over a heat insulating material or another base material, thereby preventing water leakage.

[0003]

However, the floor structure of the roof balcony as described above is inconvenient in workability since the work of bonding and laying waterproof sheets in a watertight manner is inferior in workability, and there are defective joints. For example, there is a problem that rain leaks from there, and also when the waterproof sheet is broken due to walking or the like, rain leak similarly occurs.

SUMMARY OF THE INVENTION The present invention has been made to address the above problems, and an object of the present invention is to provide a roof balcony floor structure which is easy to construct and has excellent waterproofness, and a waterproof pan used therefor. It is in.

[0005]

In order to achieve the above object, a floor structure of a roof balcony according to claim 1 of the present invention comprises a roof having a rectangular waterproof pan having a drain port and a number of support projections formed on a bottom surface. It is laid on the floor of a balcony, surface materials are arranged vertically and horizontally, placed on support protrusions, and a drain pipe is connected to a drain port.

[0006] The floor structure of such a roof balcony is as follows:
The waterproof pan can be laid on the floor of the roof balcony, the surface material can be placed on the support projections, and the drainage pipe can be efficiently connected to the drain of the waterproof pan by a simple operation. And rainwater flows down into the waterproof pan from the gap between the surface materials and is drained from the drain port through the drain pipe, so there is almost no danger of water leakage, and the waterproof pan walks like a waterproof sheet. Since there is no fear of breakage, water leakage can be reliably prevented over a long period of time.

Next, a floor structure of a roof balcony according to a second aspect of the present invention, in the floor structure of the first aspect, has a large number of water passage gaps vertically penetrating along the edge of the waterproof pan. The drainage surface materials are arranged side by side and placed on the support protrusion.

[0008] In such a roof balcony floor structure, even when heavy rain temporarily concentrates, a large amount of rainwater flows into the inside of the waterproof pan from the water passage gap of the drainage surface material and drains from the drain outlet. Therefore, rainwater does not temporarily accumulate on the surface material.

Next, a floor structure of a roof balcony according to a third aspect of the present invention is the floor structure of the first or second aspect, wherein an overflow hole is formed in an upper portion of a side wall of the waterproof pan, and the overflow pipe is formed in the hole. Are connected.

[0010] In such a roof balcony floor structure, when the waterproof pan is almost full of rainwater due to concentrated torrential rain or the like, the rainwater is drained from the overflow hole through the overflow pipe, so that the rainwater overflows from four rounds of the waterproof pan. Can be prevented.

Next, a floor structure of a roof balcony according to a fourth aspect of the present invention is the floor structure according to any one of the first to third aspects, wherein a plurality of waterproof pans are laid on the floor surface of the roof balcony and are adjacent to each other. The upper end portion of the side wall of the waterproof pan is connected and fixed with an adhesive tape, and a waterproof cover for the connecting portion having an inverted U-shaped cross section is attached thereon.

Like the floor structure of this roof balcony,
When the upper ends of the side walls of the waterproof pans adjacent to each other are connected with an adhesive tape, and the connecting portion waterproof cover is attached thereon, water leakage from the connecting portion is reliably prevented by the waterproof cover, and the waterproofing is performed by the adhesive tape. The waterproof cover is fixed as well as the pan, so that the waterproof cover does not come off.

Next, a floor structure of a roof balcony according to a fifth aspect of the present invention is the floor structure according to any one of the first to fourth aspects, wherein an upper end portion of a side wall of the waterproof pan along a wall surface of the roof balcony. To the wall with adhesive tape,
A waterproof wall cover is attached to the wall surface of the roof balcony so as to cover the upper end of the fixed side wall.

In such a roof balcony floor structure, the gap between the upper end of the side wall of the waterproof pan and the wall surface of the roof balcony is double-covered by the adhesive tape and the wall waterproof cover. Water leakage can be reliably prevented.

Next, a waterproof pan for a roof balcony according to a sixth aspect of the present invention has a drain hole and a large number of support projections formed on a square bottom surface, and side walls slightly higher than the support projections are formed on four rounds of the bottom surface. It is characterized by having done.

[0016] Such a waterproof pan is laid on the floor of a roof balcony as described above, and has a waterproof property by mounting a surface material on the support projection and connecting a drain pipe to a drain port. An excellent roof balcony floor structure can be easily constructed.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a plan view showing a floor structure of a roof balcony according to an embodiment of the present invention, FIG. 2 is a plan view of the same floor structure with surface materials omitted, FIG. 3 is a schematic sectional view of the same floor structure, FIG. 4 is a partial perspective view of a waterproof pan used in the floor structure, FIG. 5 is an enlarged partial cross-sectional view showing a connecting portion of the waterproof pans in the floor structure, and FIG. FIG. 7 is an enlarged partial cross-sectional view showing a way of piping in the floor structure.

As shown in FIG. 2, the roof balcony floor structure according to this embodiment has a large number of support projections 1a, 1a.
Two rectangular waterproof pans 1, 1 having b, 1c, 1d formed on the bottom surface are laid on the floor of a balcony so as to be adjacent to each other at right angles, and as shown in FIGS. The surface materials 2a, 2b, 2c, 2d are arranged vertically and horizontally on the upper surface.

The above-mentioned waterproof pan 1 has a rectangular bottom surface having a vertical to horizontal dimension ratio of 2: 1 and side walls 11 formed on four sides of the rectangular bottom surface. As shown in FIGS. A plurality of substantially cross-shaped support projections 1a are formed to protrude on the center line extending in the direction of. A large number of substantially T-shaped support protrusions 1b and substantially L-shaped support protrusions 1c are arranged in a rectangular frame so as to surround these support protrusions 1a, and are formed to be protruding. 1b, 1c
Are formed along the four peripheral side walls 11.

The spacing (arrangement interval) between the support projections 1a, 1b, and 1c is constant, and is set to be equal to the length of one side of the square surface material 2a. , But the support protrusions 1b, 1c
The distance between the support protrusion 1d and the support protrusion 1d is set to 1/2 of the above distance.

Therefore, as shown in FIG.
The four corners of the square surface material 2a are placed on a, 1b and 1c, and the four corners of the rectangular surface material 2b obtained by dividing the surface material 2a into two are placed on the support protrusions 1b and 1c and the support protrusion 1d. A small square surface material 2c obtained by further dividing the surface material 2b into two is placed on the support projections 1c and 1d at the corners of the waterproof pan 1.

Also, four side walls 11 of the waterproof pan 1
Are formed to be higher than the heights of the support projections 1a, 1b, 1c, 1d by the thickness of the surface materials 2a, 2b, 2c, and support the surface materials 2a, 2b as shown in FIGS. When mounted on the projections 1a, 1b, 1c, 1d, the height of the upper surface of the surface material and the height of the upper end flange portion 11a of the side wall 11 are substantially the same.

As the surface material 2a, 2b, 2c, an inorganic non-combustible board or the like is used. In particular, those having a pattern on the surface are preferably used, but other plastic boards and the like can of course be used.

In the floor structure of this embodiment, in addition to the above surface materials 2a, 2b and 2c, a drainage surface material 2d having a large number of water passage voids penetrating vertically as shown in FIG.
Are lined up along the edges of the waterproof pans 1
b, 1c, and 1d. Grating or the like is preferably used as the surface material 2d for drainage, but other water-permeable plates having a large number of water-permeable voids can of course also be used.

When such a drainage surface material 2d is placed, a large amount of rainwater is discharged from the water-passing gap of the drainage surface material 2d even when heavy rain is temporarily concentrated. Since the water flows into the inside, rainwater does not temporarily accumulate on the surface materials 2a, 2b, 2c.

As shown in FIG. 1, a drain port 12 is formed on the bottom surface of one corner of the waterproof pan 1, and the drain port 1
2, a drain pipe 3 is connected from below, as shown in FIG. An overflow hole 13 is formed in the upper part of the side wall 11 of the waterproof pan 1, and the overflow pipe 4 is connected to the hole 13 from outside.

Therefore, rainwater and the like flowing into the waterproof pan 1 through the gaps between the surface materials 2a, 2b, 2c and the water-permeable gaps of the drainage surface material 2d are removed by the support projections 1a, 1b, 1c, 1
Then, the water flows through the bottom surface during the interval d, and is smoothly drained from the drain port 12 through the drain pipe 3. Then, even in the case of a torrential downpour, if the waterproof pan 1 is almost full of rainwater, the rainwater is drained from the overflow hole 13 through the overflow pipe 4, and there is no fear that the rainwater overflows from four rounds of the waterproof pan 1. .

The waterproof pan 1 is desirably integrally formed of a plastic molding material having a low coefficient of thermal expansion such as a tough FRP or SMC (sheet molding compound) reinforced with glass fibers. The waterproof pan 1 molded from such a molding material has advantages that it is durable, hard to break, and hardly warps due to thermal expansion and contraction.

As shown in FIG. 5, the connecting portions of the two waterproof pans 1, 1 adjacent at right angles are connected to the upper end flange portions 11a, 11a of the side walls 11, 11 of the adjacent waterproof pans 1, 1 with an adhesive tape 5 as shown in FIG. And is connected by attaching a waterproof cover 6a having a reverse U-shaped cross section from above. When connected in this manner, the waterproof cover 6
a reliably prevents water leakage from the connecting portion, and furthermore, the waterproof cover 6a is fixed as well as the waterproof pans 1 and 1 are connected by the adhesive tape 5, so that the waterproof cover 6a does not come off. Mounted. Incidentally, as the adhesive tape 5, an adhesive butyl tape or the like is suitably used.

The flange 11a at the upper end of the side wall 11 of the waterproof pan 1 is fixed to the wall surface 7 of the roof balcony with an adhesive tape 5 as shown in FIG. A cover 6b is attached to the wall surface 7 via an adhesive tape 5. When the end of the waterproof pan 1 is performed in this manner, the gap between the flange portion 11a at the upper end of the side wall 11 of the waterproof pan 1 and the wall surface 7 of the roof balcony is double-covered with the adhesive tape 5 and the wall waterproof cover 6b. Therefore, there is an advantage that water leakage from the gap can be reliably prevented.

Although the floor structure and the waterproof pan of the roof balcony according to the present invention have been described with reference to one embodiment, the present invention is not limited to only such an embodiment. Of the waterproof pan, changing the vertical and horizontal dimensions of the waterproof pan, changing the surface material to other shapes and materials, changing the connection structure of the waterproof pan, It goes without saying that various design changes can be tolerated, for example, by changing the manner of trimming.

[0033]

The floor structure of the roof balcony according to the present invention is as follows.
The waterproof pan can be laid on the floor of the roof balcony, the surface material can be placed on the support protrusions, and the drainage pipe can be connected to the drain of the waterproof pan with a simple operation and can be installed efficiently. In addition, there is a remarkable effect that water leakage can be completely prevented without any possibility of water leakage, and the waterproof pan is hardly damaged.

[Brief description of the drawings]

FIG. 1 is a plan view showing a floor structure of a roof balcony according to an embodiment of the present invention.

FIG. 2 is a plan view of the same floor structure from which surface materials are omitted.

FIG. 3 is a schematic sectional view of the floor structure.

FIG. 4 is a partial perspective view of a waterproof pan used for the floor structure.

FIG. 5 is an enlarged partial cross-sectional view showing a connecting portion between waterproof pans in the same floor structure.

FIG. 6 is an enlarged partial cross-sectional view illustrating a manner of end closing in the floor structure.

FIG. 7 is an enlarged partial sectional view showing a piping method in the floor structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterproof pan 1a, 1b, 1c, 1d Supporting projection 11 Side wall 12 Drain port 13 Overflow hole 2a, 2b, 2c Surface material 2d Drain surface material 3 Drain pipe 4 Overflow pipe 5 Adhesive tape 6a Connection part waterproof cover 6b Wall waterproof cover 7 Roof Balcony Wall

Claims (6)

[Claims] 1. A rectangular waterproof pan having a drain port and a number of support projections formed on a bottom surface is laid on a floor surface of a roof balcony,
While lining the surface materials vertically and horizontally, placing them on the support protrusions,
The floor structure of the roof balcony, characterized by connecting a drain pipe to the drain port. 2. A drainage surface material having a large number of vertically penetrating water-permeable gaps is arranged along the edge of the waterproof pan and placed on the support projection. Floor structure of roof balcony. 3. The floor structure of a roof balcony according to claim 1, wherein an overflow hole is formed in an upper portion of a side wall of the waterproof pan, and an overflow pipe is connected to the hole. 4. A plurality of waterproof pans are laid on the floor surface of a roof balcony, and upper ends of side walls of the waterproof pans adjacent to each other are connected and fixed with an adhesive tape, and a connecting section waterproof cover having an inverted U-shaped cross section is provided from above. The floor structure of a roof balcony according to any one of claims 1 to 3, wherein the roof balcony is attached. 5. An upper end of the side wall of the waterproof pan along the wall surface of the roof balcony is fixed to the wall surface with an adhesive tape, and a waterproof wall cover is attached to the wall surface of the roof balcony so as to cover the fixed upper end portion of the side wall. The floor structure of a roof balcony according to any one of claims 1 to 4, characterized in that: 6. A waterproof pan for a roof balcony, wherein a drain port and a large number of support projections are formed on a rectangular bottom surface, and side walls slightly higher than the support projections are formed on four sides of the bottom surface.