JPH09256488A - Waterproofing structure for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproofing structure ensuring freedom from the hardening or crack of a waterproofing polyvinyl chloride resin sheet, even when the lower end of a waterproofing sheet having the upper end attached to the lower end rear side of an exterior wall is pasted to an adhesive butyl tape. SOLUTION: A plurality of water drips 5 are arrayed along a gap at the corner part of plywood 3 and a water drip 5 on the lower side of an exterior wall 1, and a waterproofing polyvinyl chloride resin sheet 45 is attached to an area between the water drips 5 and 5 for provide a waterproofing function. Also, an aluminum adhesive tape 8 is pasted to the waterproofing polyvinyl chloride resin sheet 45 and, then, an adhesive butyl tape 8 pasted thereto. Then, a waterproofing sheet 2 attached to the lower end reverse side of an exterior wall 1 is attached to the butyl tape 8. As a result, only the attachment of tapes is required and a work can be easily executed. In addition, the lower part of the waterproofing sheet 2 is attached to the butyl tape 8 and, therefore, free from being flapped by the wind, thereby ensuring a high waterproofing function. Also, the waterproofing polyvinyl chloride resin sheet 45 does not touch the adhesive butyl tape 8 and the transition of plasticity does not take place, thereby ensuring high durability.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a waterproof structure for a building. More specifically, the present invention relates to a waterproof structure of a building for waterproofing a gap between an outer wall and a building below the outer wall, for example, a building such as an outer wall, a shed, a balcony. In particular, the present invention relates to a waterproof structure of a building suitable for a structure for waterproofing a corner portion between an outer wall and a shed or balcony attached below the outer wall.

[0002]

2. Description of the Related Art Conventionally, as a structure for waterproofing a corner portion between an outer wall and a shed, a structure in which a drainer is attached between the wall and the shed as described in JP-A-1-190846. It has been known. Further, there are various means for waterproofing the horizontal gap between the outer wall of the upper floor and the outer wall of the lower floor, but the waterproofing as described in JP-A-64-33335 and 64-33336. Seats are often attached. This waterproof sheet is used by attaching the upper end to the back of the lower end of the outer wall of the upper floor and attaching the lower end to the surface of the outer wall material of the lower floor. Then, rainwater that has flown on the surface of the outer wall of the upper floor and flows down to the surface of the outer wall of the lower floor along the surface of this tarpaulin, so that between the outer wall of the upper floor and the outer wall of the lower floor. Rainwater does not enter through the gap. It is preferable to use this waterproof sheet as described above, because the waterproof sheet can be easily and surely waterproofed.

On the other hand, as a means for waterproofing the floor of a balcony, etc., as described in Japanese Patent Publication No. 58-36705, a floor is often covered with a waterproof polyvinyl chloride resin sheet. Also, as a waterproof tape,
An adhesive butyl tape is known as described in Japanese Patent No. 62827. Since the adhesive butyl tape itself has adhesiveness and water repellency, the adhesive butyl tape can be waterproofed by simply attaching the adhesive butyl tape, and is suitable for waterproofing a small gap.

[0004]

However, it is not possible to prevent a gap between the outer wall and the lower house by only installing the drainer between the outer wall and the lower house, so that the gap between the outer wall and the lower house cannot be prevented. There is a problem of rainwater infiltration. In order to solve this problem, as a result of various studies by the inventor, it has been noted that the above-mentioned waterproof sheet used when waterproofing the horizontal gap between the outer wall and the outer wall is suitable, and the upper end portion of the waterproof sheet is It was found that it was extremely effective when it was attached to the back side of the lower end of the outer wall and the lower end was attached to the drain, but it is necessary to attach the lower end of this waterproof sheet to the drain so that the waterproof sheet is not disturbed by the wind. For this reason, as described in the above publication, if an adhesive is provided on the back surface of the waterproof sheet in advance, it is inconvenient because the back surface of the waterproof sheet is bonded to another place or dust is attached to the adhesive. It was

Therefore, it has been found that if an adhesive butyl tape is attached to this drain at the time of construction and the lower end portion of this waterproof sheet is adhered to the adhesive butyl tape, the waterproof between the waterproof sheet and the drain can be easily achieved. On the other hand, the length of the drainer may be the same as the length of the shed, but since the length of the drainer is usually shorter than the length of the shed, a plurality of drainers are installed side by side. Then, there is a problem that rainwater leaks from a gap between this drain and an adjacent drain.

Therefore, as a result of various studies by the inventor in order to solve this problem, a waterproof polyvinyl chloride resin sheet used for waterproofing a horizontal surface of a balcony or the like is laid between a drain and an adjacent drain. It turned out to be good to install. However, in order to attach the waterproof sheet attached to the outer wall, if you attach an adhesive butyl tape on this drain and the polyvinyl chloride resin sheet for waterproofing that spans the adjacent drainer, the polyvinyl chloride resin for waterproofing is attached. The plasticizer contained in the sheet migrates to the adhesive butyl tape, the waterproof polyvinyl chloride resin sheet gradually hardens, and in the worst case cracks occur, and this waterproof polyvinyl chloride resin sheet The problem occurs that rainwater leaks from the seat.

Also in a building having a building such as a balcony laid with a waterproof polyvinyl chloride resin sheet below the outer wall, when the gap between the outer house and the lower building is waterproofed, Adhesive butyl tape is attached to the upper surface of the polyvinyl chloride resin sheet for waterproofing on the building, and the lower end of the waterproof sheet with the upper end attached to the lower surface of the outer wall is attached to this adhesive butyl tape. Although it is extremely convenient, similarly to the above, the plasticizer of the waterproof vinyl chloride resin sheet may be transferred to the adhesive butyl tape, and the waterproof butyl tape may be hardened or cracked.

Therefore, an object of the present invention is to provide a waterproof structure for waterproofing a gap between an outer wall and a building such as an outer wall below this outer wall, a shed, a balcony, and the like. A polyvinyl chloride resin sheet for waterproofing is provided even if a vinyl chloride resin sheet is provided, an adhesive butyl tape is attached on top of this, and the lower end of a waterproof sheet with the upper end attached to the back of the lower end of the outer wall is attached to the adhesive butyl tape. It is to provide a waterproof structure for a building that does not become hard or crack.

[0009]

SUMMARY OF THE INVENTION The present invention is made to achieve the above object, and the invention according to claim 1 waterproofs a gap between an outer wall and a building below the outer wall. A waterproof structure of a building that is waterproof with a sheet, wherein the building is fitted with a polyvinyl chloride resin sheet for waterproofing,
An aluminum adhesive tape provided with an adhesive layer on the back surface of the strip-shaped aluminum foil is attached to the waterproof polyvinyl chloride resin sheet, an adhesive butyl tape is attached on the aluminum adhesive tape, and the lower end of the outer wall is attached. The upper end of the waterproof sheet is attached to the back surface of the part, and the lower end of the waterproof sheet is attached to the adhesive butyl tape.

The invention according to claim 2 is a waterproof structure for a building, wherein a waterproof sheet is used for waterproofing a gap between a corner portion between an outer wall and a lower house or a balcony which is mounted below the outer wall so as to project in an outdoor direction. A plurality of drainers consisting of elongated bodies are arranged along the gap between the vertical portion below the outer wall and the lower house or balcony, and the gap between the aligned drainers and the adjacent drainer is, A polyvinyl chloride resin sheet for waterproofing is spanned to connect the drainer in a watertight manner,
To this polyvinyl chloride resin sheet for waterproofing, an aluminum adhesive tape provided with an adhesive layer on the back surface of the strip-shaped aluminum foil is attached, and an adhesive butyl tape is attached on the aluminum adhesive tape and in the central portion of the drainer. The upper end of the waterproof sheet is attached to the back surface of the lower end of the outer wall, and the lower end of the waterproof sheet is attached to the adhesive butyl tape.

(Operation) In the waterproof structure for a building according to claim 1, since a polyvinyl chloride resin sheet for waterproofing is attached to a building like a conventional balcony, the building itself has good waterproofing performance. . In the waterproof structure for a building according to claim 1, an aluminum adhesive tape is attached to the waterproof polyvinyl chloride resin sheet, an adhesive butyl tape is attached on the aluminum adhesive tape, and a lower end of the outer wall is attached. Since the upper end of the waterproof sheet is attached to the back surface of the part and the lower end of this waterproof sheet is attached to the adhesive butyl tape, the construction method of this structure is for waterproofing installed on a building. Affix the aluminum adhesive tape to the polyvinyl chloride resin sheet, attach the adhesive butyl tape on this, and then attach the lower end of the waterproof sheet attached to the back surface of the lower end of the outer wall to this adhesive butyl tape. It is very easy to install by simply attaching it to the waterproof sheet, and in the waterproof structure constructed in this way, the waterproof sheet is sticky. Without being fueled by the wind from being stuck on sexual butyl tape, it flows over the waterproof polyvinyl chloride resin sheet rainwater flowing down the surface of the outer wall along the tarpaulin. Therefore, rainwater or the like does not enter through the gap between the outer wall and the lower building, and the waterproof performance is extremely good.

Moreover, since the adhesive butyl tape is attached to the waterproof polyvinyl chloride resin sheet via the aluminum foil, the plasticizer in the waterproof polyvinyl chloride resin sheet does not migrate to the adhesive butyl tape. .

In the waterproof structure for a building according to a second aspect, a plurality of drains made of elongated bodies are arranged and installed along a gap between a vertical portion below the outer wall and the lower house or balcony. Since a polyvinyl chloride resin sheet for waterproofing is laid across the gap between the drains arranged next to each other to connect the drains in a watertight manner, rainwater does not leak from the gap between the drains.

In the waterproof structure for a building according to the present invention, an aluminum adhesive tape is attached to a polyvinyl chloride resin sheet for waterproofing, and an adhesive butyl tape is provided on the aluminum adhesive tape and in the central portion of the drainer. Is attached, the upper end of the waterproof sheet is attached to the lower surface of the outer wall, and the lower end of the waterproof sheet is attached to an adhesive butyl tape. Attach the aluminum adhesive tape to the polyvinyl chloride resin sheet for waterproofing that is hung between the drain and the drain, and attach the adhesive butyl tape to the top of this aluminum adhesive tape and the central part of the drain, and the bottom edge of the outer wall. Just attach the lower end of the tarpaulin attached to the back of the section to this adhesive butyl tape. Construction is very simple.

In the waterproof structure thus constructed, since the waterproof sheet is attached to the butyl adhesive tape, rainwater that has run down the surface of the outer wall is transmitted to the waterproof sheet without being disturbed by the wind. It flows onto the shop or balcony. That is, between the drainer and the adjacent drainer, it flows on the waterproof polyvinyl chloride resin sheet and flows on the lower house or balcony, and at the central part of the drainer, it flows along the drainer to the lower house or balcony. Therefore, rainwater or the like does not enter through the gap between the outer wall and the lower house, and the waterproof performance is extremely good. Moreover, since the adhesive butyl tape is attached to the waterproof polyvinyl chloride resin sheet via the aluminum foil, the plasticizer in the waterproof polyvinyl chloride resin sheet does not transfer to the adhesive butyl tape.

[0016]

Next, embodiments of the present invention will be described. 1 to 3 show an embodiment of a waterproof structure of a building of the present invention, FIG. 1 is an explanatory view showing a state where a corner portion between an outer wall and a balcony is waterproof, and FIG. 2 shows an adhesive butyl tape. FIG. 3 is a cross-sectional view taken along line II-II of FIG. 1 after pasting, and FIG. 3 is a perspective view showing a building.

1 to 3, A is a building, and this building A is composed of a second floor portion and a first floor portion as shown in FIG. A balcony 9 is attached on the first floor. The balcony 9 is in contact with the wall 91 at the boundary between the first and second floors, and the boundary between the boundary between the first and second floors and the wall 91 at the balcony 9 is a corner. The waterproof structure of the corner portion between the wall 91 and the balcony 9 will be described with reference to FIGS. 1 and 2.

Reference numeral 1 is an outer wall of the second floor made of hard wood cement board. A frame 1 is provided on the peripheral edge of the back surface of the outer wall 1.
1 is attached. And the lower frame 11
A draining plate 12 is attached to the. Reference numeral 2 denotes a waterproof sheet made of a cloth-pulled rubber sheet provided with a synthetic rubber layer on the surface of the cloth. Reference numeral 3 is a plywood provided on the boundary between the second floor portion and the first floor portion. The plywood 3 is a vertical portion below the outer wall 91. 4 is a floor made of ALC laid on the floor of the balcony 9. A polyvinyl chloride resin sheet 45 for waterproofing is laid on the floor 4 of the balcony 9.

Reference numeral 5 denotes a drainer made of a polyvinyl chloride resin-coated steel sheet having an L-shaped cross section and attached to the plywood 3 and the floor 4 so as to be attached thereto. A plurality of the drainers 5 are arranged along the gap between the plywood 4 and the balcony 9 and attached. Reference numeral 6 denotes a waterproof vinyl chloride resin sheet which is laid across and attached between the drain 5 and the adjacent drain 5.
Reference numeral 7 is an aluminum adhesive tape adhered onto the waterproof polyvinyl chloride resin sheet 6, and this aluminum adhesive tape 7 has an adhesive layer provided on the back surface of a strip-shaped aluminum foil. Reference numeral 8 is an adhesive butyl tape, and the adhesive butyl tape 8 is attached on the aluminum adhesive tape 7.

Next, a construction method for waterproofing the corner portion between the balcony 9 and the wall 91 will be described. In advance,
On the outer wall 1 at the corner between the wall 91 of the building A and the balcony 9, the upper end of the waterproof sheet 2 is attached to the frame 12 on the rear surface of the lower end. First, the plywood 4 and the floor 4 of the balcony 9 mounted between the second floor portion and the first floor portion.
A plurality of drainers 5 are arranged side by side along the gap between and. Next, the waterproof polyvinyl chloride resin sheet 45 is bridged between the drain 5 and the adjacent drain 5, and the waterproof polyvinyl chloride resin sheet 45 and the drain 5 are adhered to each other to form the drain 5 and the drain 5. Close the gap between.

Then, rainwater will not leak from between the waterproof polyvinyl chloride resin sheet 45 and the water drain 5. Next, as shown in FIG. 1, the aluminum adhesive tape 7 is attached to the waterproof polyvinyl chloride resin sheet 45, covering one side edge to the other side of the height at which the waterproof sheet 2 is attached, and the waterproof sheet is attached. The waterproof polyvinyl chloride resin sheet 45 should not appear at the height at which 2 is attached. Next, the adhesive butyl tape 8 is attached along the height at which the waterproof sheet 2 is attached. Then, this adhesive butyl tape 8
Since the aluminum adhesive tape 7 is attached to the waterproof vinyl chloride resin sheet 45 having a height to which is attached, the adhesive butyl tape 8 and the waterproof polyvinyl chloride resin sheet 45 do not come into contact with each other. Therefore, the plasticizer in the waterproof polyvinyl chloride resin sheet 45 does not move into the adhesive butyl tape 8.

Next, the lower end 21 of the waterproof sheet 2 whose upper end is attached to the back surface of the lower end of the outer wall 1 is pressed against the adhesive butyl tape 8. Then, the lower end portion 21 of the waterproof sheet 2 adheres to the adhesive butyl tape 8 and the waterproof sheet 2
The rainwater does not enter from this part without being blown by the wind. A waterproof polyvinyl chloride resin sheet 6 laid on the floor 4 of the balcony 9 is adhered to the drainer 5. Then, rainwater does not leak from between the drain 5 and the waterproof polyvinyl chloride resin sheet 6. In this way, rainwater does not leak from between the outer wall 1 and the drain 5 and the drain 5 and the floor 4 of the balcony 9
Since rainwater does not leak from between the waterproof polyvinyl chloride resin sheets 6 laid on the floor, the corner portion between the outer wall 1 and the balcony 9 is extremely waterproof.

Further, a plurality of drainers 5 are attached, and a waterproof polyvinyl chloride resin sheet 45 is mounted between the drainers 5 and the adjacent drainers 5, and the waterproof polyvinyl chloride resin sheet 45 is attached. Since the adhesive butyl tape 8 is attached to the adhesive butyl tape 8 and the lower end of the waterproof sheet 2 is attached to the adhesive butyl tape 8, the construction is extremely simple. Moreover, since the waterproof polyvinyl chloride resin sheets 45, 6 do not contact the adhesive butyl tape, the waterproof polyvinyl chloride resin sheets 45, 8
Plasticizer does not transfer to adhesive butyl tape. Therefore,
The waterproof polyvinyl chloride resin sheets 45, 8 are not hardened or cracked.

[0024]

In the waterproof structure for a building according to claim 1, an aluminum adhesive tape is attached to a polyvinyl chloride resin sheet for waterproofing, and an adhesive butyl tape is attached on the aluminum adhesive tape to form an outer wall. Since the upper end of the waterproof sheet is attached to the back surface of the lower end, and the lower end of the waterproof sheet is attached to the adhesive butyl tape, the construction method of this structure is the waterproof attached on the building. It is said that the aluminum adhesive tape is attached to the polyvinyl chloride resin sheet for use, the adhesive butyl tape is attached on top of this, and the lower end of the waterproof sheet attached to the back surface of the lower end of the outer wall is attached to this adhesive butyl tape. It is very easy to install by just sticking it on, and with the waterproof structure installed in this way, the waterproof sheet will stick Rainwater flowing down the surface of the outer wall without being fueled from being adhered to the butyl tape wind along the waterproof sheet flows over the waterproof polyvinyl chloride resin sheet. Therefore, rainwater or the like does not enter through the gap between the outer wall and the lower building, and the waterproof performance is extremely good.

Moreover, since the adhesive butyl tape is attached to the waterproof polyvinyl chloride resin sheet via the aluminum foil, the plasticizer in the waterproof polyvinyl chloride resin sheet does not migrate to the adhesive butyl tape. Therefore, the polyvinyl chloride resin sheet for waterproofing does not harden or crack, so that rainwater does not leak from the gap between the outer wall and the building below for a long period of time, which is safe.

In the waterproof structure for a building according to a second aspect, a plurality of drains made of elongated bodies are arranged and installed along a gap between the vertical portion below the outer wall and the lower house or balcony. Since the waterproof polyvinyl chloride resin sheet is laid across the gap between the drain and the adjacent drain to connect the drain in a watertight manner, rainwater does not leak from the gap between the drain.

In the waterproof structure for a building according to the present invention, an aluminum adhesive tape is attached to a waterproof polyvinyl chloride resin sheet, and an adhesive butyl tape is provided on the aluminum adhesive tape and the central portion of the drainer. Is attached, the upper end of the waterproof sheet is attached to the lower surface of the outer wall, and the lower end of the waterproof sheet is attached to an adhesive butyl tape. Attach the aluminum adhesive tape to the polyvinyl chloride resin sheet for waterproofing that is hung between the drain and the drain, and attach the adhesive butyl tape to the top of this aluminum adhesive tape and the central part of the drain, and the bottom edge of the outer wall. Just attach the lower end of the tarpaulin attached to the back of the section to this adhesive butyl tape. Construction is very simple.

Further, in the waterproof structure thus constructed, since the waterproof sheet is attached to the adhesive butyl tape, rainwater that has flowed down the surface of the outer wall without being disturbed by the wind travels through the waterproof sheet and travels through the waterproof sheet. Or flow on the balcony. That is, between the drainer and the adjacent drainer, it flows on the waterproof polyvinyl chloride resin sheet and flows on the lower house or balcony, and at the central part of the drainer, it flows along the drainer to the lower house or balcony. Therefore, rainwater or the like does not enter through the gap between the outer wall and the lower house, and the waterproof performance is extremely good.

Moreover, since the adhesive butyl tape is attached to the waterproof polyvinyl chloride resin sheet via the aluminum foil, the plasticizer in the waterproof polyvinyl chloride resin sheet does not migrate to the adhesive butyl tape. Therefore, the polyvinyl chloride resin sheet for waterproofing does not harden or crack, so that it is safe for a long time without rain leaking from the corner portion between the outer wall and the lower house or balcony.

[Brief description of drawings]

FIG. 1 shows an embodiment of a waterproof structure of a building of the present invention, and is an explanatory view showing a state in which a corner portion between an outer wall and a balcony is waterproofed.

FIG. 2A of FIG. 1 after sticking an adhesive butyl tape
It is sectional drawing in the -A line.

FIG. 3 is a perspective view showing a building.

[Explanation of symbols]

A building 1 outer wall 2 waterproof sheet 3 plywood 4 balcony floor 45 waterproof polyvinyl chloride resin sheet 5 drainer 6 waterproof polyvinyl chloride resin sheet between drainer 7 aluminum adhesive tape 8 adhesive butyl tape 9 balcony 91 outer wall

Claims (2)

[Claims] 1. A waterproof structure for a building, wherein a gap between an outer wall and a building below the outer wall is waterproofed by a waterproof sheet,
A polyvinyl chloride resin sheet for waterproofing is attached to the building, and an aluminum adhesive tape provided with an adhesive layer on the back surface of the belt-shaped aluminum foil is attached to the polyvinyl chloride resin sheet for waterproofing. Adhesive butyl tape is pasted on, the upper end of the waterproof sheet is attached to the lower surface of the lower end of the outer wall, and the lower end of the waterproof sheet is stuck to the adhesive butyl tape. The waterproof structure of the building. 2. A waterproof structure of a building in which a gap between corners between an outer wall and a lower house or balcony attached to the outside of the outer wall so as to project outwardly is waterproofed with a waterproof sheet, and the vertical portion below the outer wall. A plurality of drains consisting of long bodies are arranged along the gap between the roof and the balcony or the balcony, and the polyvinyl chloride resin for waterproofing is placed in the gap between the drain and the adjacent drain. The sheets are bridged to connect the drainer in a watertight manner, and the waterproof polyvinyl chloride resin sheet is attached with an aluminum adhesive tape having an adhesive layer on the back surface of the strip-shaped aluminum foil,
Adhesive butyl tape is attached to the top of the aluminum adhesive tape and to the central portion of the drainer, the upper end of the waterproof sheet is attached to the back surface of the lower end of the outer wall, and the lower end of the waterproof sheet is attached to the adhesive butyl. A waterproof structure for buildings, which is characterized by being attached to tape.