Rainwater leakage inspection tool and rainwater leakage inspection method

Abstract

To identify intrusion points of rainwater from invisible narrow cracks by using an easy-to-install and low-cost inspection tool.SOLUTION: A rainwater leakage inspection tool 100 is used to identify intrusion points of rainwater. The rainwater leakage inspection tool 100 is provided with at least two water cut-off plates and putty material. The water cut-off plate is in a rectangular plate shape and is provided with at least one notch part notched vertically from a long side. A connection part between the water cut-off plates or between the water cut-off plate and a surface A to be inspected performs water cut-off by using water cut-off material.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a technique for identifying the location of rainwater intrusion in a rainwater leak inspection for a building, and more particularly to a rainwater leak inspection tool and a rainwater leak inspection method for identifying the location of rainwater intrusion by dividing the rooftop or the like of a building and using a different colored test liquid for each division. [Background technology]

[0002] Conventionally, in investigating rain leaks in buildings, a rain leak inspection method has been known in which the area where rainwater is suspected to have entered is surrounded by a partition in order to identify the location where rainwater has entered, and a test liquid is sprayed or stored within the partition, allowing the test liquid to enter the area where rainwater has entered (see, for example, Patent Document 1 or Patent Document 2).

[0003] For example, Patent Document 1 discloses a water leak detection method in which an area suspected of leak penetration, such as the rooftop of a concrete building, is divided into multiple compartments, and a different test liquid from the three primary colors of red, blue, and yellow is sprayed on each compartment to identify the location of the leak penetration. In the water leak detection method of Patent Document 1, the boundaries of the compartments are blocked off with partitions to prevent the colored test liquids sprayed on each compartment from mixing.

[0004] Furthermore, Patent Document 2 discloses a method for inspecting for rainwater leaks in which cracks in the floor surface are surrounded by a wall made of clay material and a test liquid is stored inside the clay wall. In the rainwater leak inspection method of Patent Document 2, by storing the test liquid inside the clay wall, water pressure is applied to the cracks in the wall surface, encouraging the infiltration of rainwater. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-354124 [Patent Document 2] Japanese Patent Application Laid-Open No. 2010-133708 Summary of the Invention [Problem to be solved by the invention]

[0006] However, while the water leak inspection method of Patent Document 1 has the advantage of being able to inspect a wide area thoroughly by dividing it into sections, rather than inspecting specific locations as in the rain leak inspection method of Patent Document 2, it has the problem that because it only involves spraying water, the inspection liquid does not penetrate into thin cracks that are invisible to the naked eye.If the inspection liquid is stored in a section as in Patent Document 2, the water stop will fall over because it is placed on a seal that only has enough adhesive strength to be peeled off. Furthermore, when inspecting for rainwater intrusion through small, invisible cracks or peeling areas of waterproof sheets, it is necessary to inspect a wide area through which rainwater may infiltrate. However, the leak inspection method of Patent Document 2 has the problem that it is costly in materials and time-consuming to enclose a wide area using clay walls. The present invention has been made in consideration of the above-mentioned problems, and aims to provide a rain leak inspection tool and a rain leak inspection method that are inexpensive, easy to install, and can identify with a high probability the location of rainwater intrusion through a thin crack. [Means for solving the problem]

[0007] The invention made to solve the above problem is a rain leak inspection tool used to identify the point where rainwater has entered, and comprises a plurality of rectangular waterstop plates with at least one notch cut vertically from the long side, and a waterstop material that seals the joints between the waterstop plates and / or between the waterstop plates and the surface to be inspected on which the waterstop plates are placed. Here, "waterstop material" refers to putty, caulking material, tape, masking material, adhesive, peel-off seal, etc.

[0008] The leak inspection tool of the present invention has two waterstops each with a notch cut vertically from the long side, so that the two waterstops can be connected vertically by fitting the notches together, allowing for stable placement on the floor. Furthermore, the leak inspection tool of the present invention can easily stop water by filling the joints between the waterstops in the grid pattern and the joints with the surface to be inspected with a waterstop material.

[0009] The leak test tool of the present invention comprises a grid of crosses formed using the plurality of waterstops and surrounding the entrance to the drain outlet, a balloon that is inflated inside the drain outlet to prevent the outflow of test liquid into the drain outlet, an air hose that introduces air into the balloon, and air delivery means that delivers air to the balloon via the air hose, and it is preferable that the balloon can be inflated at the connection between the cylindrical mouthpiece provided on the drain outlet and the drain pipe that continues below the mouthpiece. This simultaneously prevents the test liquid from flowing down the drain pipe and from leaking outside the drain pipe from the connection between the mouthpiece and the drain pipe.

[0010] The leak test tool of the present invention preferably comprises a waterproof tape applied to the surface to be tested along the waterstop, an adhesive tape having adhesive strength on one side, and a masker having a sheet portion extending from the adhesive tape in the width direction of the adhesive tape, and is configured such that the adhesive tape is applied to the upper surface of the waterproof tape and the sheet portion covers the joint between the waterstop and the surface to be tested and the waterstop. This makes it possible to prevent the test liquid from penetrating the waterstop when a plywood board or concrete panel is used as the waterstop.

[0011] The present invention includes a rain leak inspection method used to identify the location of rainwater intrusion. The rain leak inspection method of the present invention is characterized by comprising a compartment formation process using a plurality of rectangular waterstops each having at least one notch cut vertically from the long side to compartmentalize areas where rainwater intrusion is suspected, a watertight process using a watertight material to seal the joints between the waterstops and / or between the waterstops and the surface to be inspected, and a test liquid storage process for storing a test liquid within the compartment.

[0012] The leak inspection method of the present invention preferably includes a drain outlet sealing step of placing a balloon inside the drain outlet and inflating the balloon inside the drain outlet to seal off the connection between a cylindrical mouth fitting provided at the entrance of the drain outlet and a drain pipe that is continuous with the mouth fitting and allows the wastewater that has flowed into the mouth fitting to flow down.

[0013] The rain leak inspection method of the present invention preferably includes a waterstop covering step in which waterproof tape is applied along the surface to be inspected along the waterstop, and a masker having adhesive tape with adhesive strength on one side and a sheet portion extending from the adhesive tape in the width direction of the adhesive tape is used, and the adhesive tape is applied to the upper surface of the waterproof tape, and the sheet portion covers the joint between the waterstop and the surface to be inspected and the waterstop. [Effects of the Invention]

[0014] As described above, the rain leak inspection tool and rain leak inspection method of the present invention can be installed inexpensively and easily, and can identify with a high probability the path of rainwater intrusion from invisible thin cracks. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view showing how a rain leak test is performed using a rain leak test tool according to a first embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a plan view of the waterstop shown in FIG. [Figure 3] This is a grid formed using four waterstop plates as shown in Figure 2(a). [Figure 4] This is a grid of crosses formed using two waterstops, as shown in Figure 2(a) and (b). [Figure 5] FIG. 2 is a plan view of another waterstop shown in FIG. [Figure 6] This partition member is formed using two waterstop plates shown in FIG. 5(a) and one waterstop plate shown in FIG. 5(b). [Figure 7] This is a grid formed using four waterstop plates as shown in Figure 5(b). [Figure 8] FIG. 10 is a plan view perspective view showing how a drain outlet is inspected for leaks using a balloon. [Figure 9] FIG. 9 is a vertical cross-sectional view of the state in which the rain leak inspection shown in FIG. 8 is carried out. [Figure 10] This is a grid pattern formed using four waterstop plates as shown in Figure 5(a). [Figure 11] (a) is a perspective view, and (b) is a side view showing the waterstop covered with a masker. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments and can be modified as appropriate without departing from the spirit and scope of the present invention.

[0017] (Leak inspection equipment) 1 shows how a leak inspection is carried out on the roof of a building using a leak inspection tool 100 according to a first embodiment of the present invention. The leak inspection tool 100 mainly comprises a plurality of waterstops 1, ... and a waterstop material 2 that seals the joints between the waterstops 1, 1 and the joints between the waterstops 1 and the surface A to be inspected, such as the floor of a building roof, on which the waterstops 1 are placed.

[0018] In addition, the rain leak inspection tool 100 includes a balloon 3 used when inspecting for rain leaks around the drain outlet B, an air hose 4 for introducing air into the balloon 3, a manual air pump (air delivery means) 5 for delivering air to the balloon 3 via the air hose 4, and a masker 8.

[0019] The waterstop 1 is formed by cutting and processing a sheet material such as a concrete panel or plywood, and includes multiple types (four types, reference numerals 11, 12, 13, and 14, in the illustrated example) of the same width but different lengths, as shown in Figures 2 and 5. Note that reference numeral 1 is used to refer to multiple types of waterstops collectively, and reference numerals 11, 12, 13, and 14 are used to refer to individual waterstops, as will be described later.

[0020] The waterstops 11 and 12 shown in Figure 2 are used to assemble a lattice (rectangular frame) 91 or lattice 92 (see Figures 3 and 4) that surrounds the drain outlet B. The waterstops 11 and 12 have a pair of cutouts 7, 7 near their short sides 11a and 12a, which cut in opposite directions from the long sides 11b and 12b in the direction of the short sides. The cutouts 7 have a width approximately equal to the thickness of the waterstop 1 and are provided over half the length of the short sides 11a and 12a. The lattice 91 and 92 are formed by alternately connecting four waterstops 11 or two waterstops 11 and two waterstops 12 by fitting the cutouts 7, as shown in Figures 3 and 4. The lattice 91, 92, ... are also collectively referred to using the reference symbol 9. In one example, the waterstop 11 is approximately 36 cm long, the waterstop 12 is 42 cm long, and both waterstops 11 and 12 are 18 cm wide.

[0021] The waterstop 1 of this embodiment further includes waterstops 13 and 14 shown in Fig. 5. In one example, the waterstop 13 is 18 cm wide and 42 cm long, and includes only one notch 7 that cuts in from one long side 13b near one short side 13a. In one example, the waterstop 14 is 18 cm wide and approximately 200 cm long, and includes two notches 7 that cut in the same direction in the width direction from the long side 14b at positions slightly spaced from both short sides 14a.

[0022] Figure 6 shows a partition member 10 formed by fitting two waterstops 13, 13 and one waterstop 14 together at their respective notches 7, 7. The partition member 10 is configured so that the waterstops 13 prevent the waterstops 14 from tipping over. As shown in Figure 1, by arranging multiple partition members 10, ... along the boundaries of compartments, compartments of various sizes and shapes can be partitioned with waterstops 14.

[0023] 7 shows a grid 93 in which four waterstops 14 are assembled by fitting together their respective cutouts 7. In this way, the cutouts 7 of the waterstops 14 can also be used to connect them together.

[0024] The type of waterstop material 2 is not particularly limited as long as it can prevent the test liquid from leaking from the joints by applying or sticking it to the joints between waterstops 1 or between waterstop 1 and surface A to be inspected, and examples include putty, caulking material, waterproof tape, masking tape, adhesive, peel-off sticker, etc. Figure 8 shows an example in which putty is used as the waterproof material and is applied in a fillet shape to prevent water leakage at the joints between waterstops 1 and 1, or where waterstop 1 touches surface A to be inspected. As the putty, for example, a putty material made of oil clay or the like used to fill holes in walls for air conditioner hoses can be suitably used, but there is no limitation thereto, and any known putty material can be used as appropriate as long as it is poorly water-soluble. Caulking materials are fillers that fill gaps in objects, and examples of caulking materials include acrylic resin, polyurethane, silicone, modified silicone, polysulfide, and the like. The waterproof tape is not particularly limited as long as it is waterproof and can adhere to concrete, asphalt, etc., and can be a sheet-shaped substrate made of a rubber-based material or a synthetic resin-based material coated with an adhesive. Examples of rubber-based materials include butyl rubber and silicone rubber, and examples of synthetic resin-based materials include polyethylene and EVA (ethylene-vinyl acetate copolymer resin). A masker is a tape-like object that includes a foldable sheet material that extends from one end in the width direction of an adhesive tape made of cloth or the like. The peel seal is a peelable caulking material, and for example, Hakuriseal ONE manufactured by Konishi Co., Ltd. can be used.

[0025] The balloon 3 is a hollow ball made of soft resin such as natural rubber or artificial rubber, and is configured to be inflated by air sent from a manual air pump (air sending means) 5 (not shown) through a resin air hose 4. As shown in Figure 9, when a grid 92 is provided to surround the drain outlet B and the grid 92 is filled with test liquid L, the balloon 3 is inflated inside the drain outlet B to prevent the test liquid from flowing into the drain outlet B.

[0026] Fig. 11 shows the waterstop 1 covered with a masker 8. In the example of Fig. 11, an adhesive tape 81 of the masker 8 is attached to the upper surface of waterproof tape 6 that has been applied to the surface A to be inspected along the waterstop 1, and the waterstop 1 is covered with a sheet portion 82 that extends from the adhesive tape 81 in the width direction.

[0027] (Leak inspection method) Next, a rain leak inspection method for identifying the location of rainwater intrusion using the rain leak inspection tool 100 according to this embodiment will be described.

[0028] (Compartment formation process S1) The compartment formation step S1 is a step of compartmentalizing areas suspected of rainwater intrusion using multiple waterstops 1. Multiple compartments can be created, and in the below-described test liquid storage step S5, test liquids containing fluorescent agents of different colors are stored in each compartment. In the compartment formation step S1, the cutouts 7 of the multiple waterstops 1 are fitted together to form grids 9 and partition members 10, which surround each compartment.

[0029] Fig. 1 shows an example in which the inspection target surface A includes a drain outlet B and a so-called pigeon coop C. In the example in Fig. 1, the entire inspection target surface A is surrounded by an array of numerous partition members 10, ..., the drain outlet B is surrounded by a lattice 92, and the pigeon coop C is surrounded by a lattice 93, dividing the surface into a section Y including the drain outlet B, a section Z including the pigeon coop C, and a section X of the inspection target surface A excluding sections Y and Z. The lattice 92 surrounding the drain outlet B is housed in a rectangular recess A3 that guides drainage to the drain outlet B.

[0030] (Water stop process S2) The watertight process S2 is a process of sealing the joints between the waterstops 1 of the lattice structure 9 and partition member 10 assembled in the compartment formation process S1, and between the waterstop 14 and the surface A to be inspected, with a watertight material 2. In the lattice structure 92, as shown in FIG. 8, water is sealed by applying putty as the watertight material 2 in the form of fillets to the joints between adjacent waterstops 11, 12 and the abutting parts between the waterstops 11, 12 and the bottom surface A31 of the rectangular recess A3. Although not shown in the figure, water is sealed in the lattice structure 93 and the partition member 10 by applying putty in a similar manner. However, a watertight material other than the putty described above may be used as the watertight material 2.

[0031] (Masker installation process S3) The masker installation step S3 is a step of covering part or all of the waterstop 1 with the masker 8. In the masker installation step S3, first, as shown in FIG. 11 , waterproof tape 6 is applied to the inspection target surface A along the waterstop 1 that is to be covered with the masker 8. Next, while pulling out the tape-like masker 8 from the roll, adhesive tape 81 is applied to the upper surface of the waterproof tape 6 that has been stretched over the inspection target surface A. Thereafter, the sheet portion 82 is unfolded from the masker 8, which has been folded accordion-like, and is placed over the waterstop 1 from above, thereby covering the waterstop 1.

[0032] (Drain outlet sealing process S4) The drain outlet sealing step S4 is a step of placing a balloon 3 inside the drain outlet B and sealing the drain outlet B. In this step, as shown in FIG. 9, a deflated balloon 3 is placed inside the drain outlet B. The balloon 3 is positioned above the connecting portion B3 between the cylindrical fitting B1 at the entrance of the drain outlet B and the drain pipe B2, or so as to straddle the connecting portion B3 vertically, in order to waterproof the connecting portion B3. In this state, the manual air pump 5 is driven to send air into the balloon 3 through the air hose 4, inflating the balloon 3. In this way, the balloon 3 waterproofs both the drain pipe B2 and the connecting portion B3. The drain outlet sealing step S4 can be performed in parallel with the above steps or before or after the above steps, as long as it is performed before the test liquid storing step S5 described later.

[0033] (Test solution storage step S5) The test liquid storing step S5 is a step of storing test liquid in each compartment. In the example of Fig. 1, test liquids containing fluorescent agents of different colors are stored in compartments X, Y, and Z.

[0034] (Rainwater ingress point identification process S6) The rainwater intrusion point identification step S6 is a step of identifying the section including the intrusion point of the rainwater that is causing the leak. In this embodiment, fluorescent light is applied to the rainwater that has leaked into the building, and the fluorescent color of the rainwater is used to identify which section (X, Y, Z) the rainwater has intruded from.

[0035] For example, if the test liquid L that has entered the building exhibits the fluorescent color of the test liquid L stored in section X, it is estimated that there is an invisible crack on the surface A to be inspected in section X. Also, if the test liquid L that has entered the building exhibits the fluorescent color of the test liquid L stored in section Y, it is estimated that there is a leak at the boundary between the pigeon coop C and the surface A to be inspected.

[0036] As described above, the drain outlet B in section Y has a cylindrical mouth fitting B1 made of casting or the like at its entrance, with the drain pipe B2 connected continuously to the bottom of the mouth fitting B1 (see Figure 9). Reference symbol B3 indicates the connection between the mouth fitting B1 and the drain pipe B2. A flange portion B1a that extends radially outward is provided at the upper end of the mouth fitting B1, and this mouth fitting B1 is connected to the waterproof layer A4 made of an asphalt sheet by fusing the flange portion B1a to the waterproof layer A4. In this embodiment, in the drain outlet sealing process S4, the connection part B3 between the nozzle fitting B1 and the drain pipe B2 is sealed with a balloon 3, and the water pressure of the test liquid L is applied to the fused part B4 between the nozzle fitting B1 and the waterproof layer A4.Therefore, if the test liquid L from section Y is the cause of the leak, it will be determined that the rainwater is entering through the fused part B4, not the connection part B3.

[0037] If it is determined that rainwater has not entered through the fused portion B4, the balloon 3 can be inflated below the connecting portion B3 to seal the drain pipe B2, thereby making it possible to check for water leakage from the connecting portion B3.

[0038] (effect) The rain leak inspection tool 100 and the rain leak inspection method according to this embodiment have the following effects. (1) At least two waterstops 1 are connected at right angles by the notches 7, so that the waterstops 1 will not fall over when placed on the surface A to be inspected. (2) The connection parts between the waterstops 1 and the connection parts between the waterstops 1 and the surface to be inspected are sealed with the waterstop material 2, so that the test liquid L can be stored within the area surrounded by the waterstops 1, and the water pressure of the test liquid L can be applied to the point where rainwater enters. (3) When the balloon 3 is used to waterproof the drain pipe B2, it also waterproofs the connection B3 between the nozzle B1 of the drain outlet B and the drain pipe B2, making it easy to identify leaks from the fused part B4 between the nozzle B1 and the waterproof layer A4. (4) Since the waterstop 1 is covered with a masker, even if the waterstop is made of a board that is easily permeated with liquid, such as a plywood board or a concrete panel, the test liquid can be prevented from permeating.

[0039] As described above, the present invention is not limited to the above-described embodiment. For example, the waterstop may have three or more cutouts. If the drain outlet is not inspected, the balloon may not be provided, and the drain outlet sealing process may not be performed. The waterstop may not be covered with a masker. [Explanation of symbols]

[0040] 100 leak inspection tools Waterstops 11, 12, 13, 14 Long sides 11b, 12b, 13b, 14b Putty 2 Balloon 3 Air Hose 4 Manual air pump (air pumping means) 5 Waterproof Tape 6 Cutout 7 Masker 8 Adhesive Tape 81 Seat section 82 Igeta 9 (91, 92, 93) Compartment formation process S1 Water stop process S2 Drain outlet sealing process S3 Test solution storage process S4 Mouthpiece B1 Drain pipe B2 Joint B3 Inspection target surface A Drain outlet B Test solution L

Claims

1. A rain leak inspection tool used to identify the location of rainwater intrusion, A plurality of rectangular waterstop plates each having at least one notch extending perpendicularly from a long side; The rain leak inspection tool is provided with a water stop material that seals off the joints between the water stops and / or between the water stops and the surface to be inspected on which the water stops are placed.

2. A grid formed using the plurality of waterstops surrounding the entrance of the drain outlet; a balloon that is inflated in the drain outlet to prevent the test liquid from flowing into the drain outlet; an air hose for supplying air to the balloon; air flow means for flowing air into the balloon through the air hose; Equipped with 2. The leak inspection tool according to claim 1, wherein the balloon can be inflated at a connection between a cylindrical fitting provided at the drain outlet and a drain pipe continuing below the fitting.

3. a waterproof tape attached to the inspection target surface along the waterstop; an adhesive tape having adhesive strength on one side, and a masker having a sheet portion extending from the adhesive tape in the width direction of the adhesive tape; Equipped with The leak inspection tool according to claim 1 or claim 2, wherein the adhesive tape is attached to the upper surface of the waterproof tape, and the sheet portion is configured to cover the joint between the water stop plate and the surface to be inspected, and the water stop plate.

4. A rain leak inspection method used to identify a location where rainwater has entered, a compartment formation process for compartmentalizing areas where rainwater intrusion is suspected using a plurality of rectangular waterstop plates each having at least one notch extending perpendicularly from a long side; a water-stopping step of sealing the joints between the waterstops and / or the joints between the waterstops and the surface to be inspected with a water-stopping material; a test liquid storing step of storing a test liquid in the compartment; A rain leak inspection method comprising:

5. 5. The rain leak inspection method according to claim 4, further comprising a drain outlet sealing step of placing a balloon inside the drain outlet and inflating the balloon inside the drain outlet to seal off the connection between a cylindrical fitting provided at the entrance of the drain outlet and a drain pipe that is continuous with the fitting and through which the wastewater that has flowed into the fitting flows down.

6. A waterproof tape is applied to the surface to be inspected along the waterstop, and a masker having an adhesive tape with adhesive strength on one side and a sheet portion extending from the adhesive tape in the width direction of the adhesive tape is used. A rain leak inspection method as described in claim 4, further comprising a waterstop covering step of attaching the adhesive tape to the upper surface of the waterproof tape and using the sheet portion to cover the joint between the waterstop and the surface to be inspected, and the waterstop.

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