JP7300417B2 - Subsidiary waterproofing material with water leakage detection function, roof waterproof structure including the same, and method for detecting water leakage - Google Patents

Description

TECHNICAL FIELD The present invention relates to a secondary waterproofing material with a water leakage detection function, a waterproof roof structure including the same, and a method for detecting water leakage. More specifically, the present invention relates to a secondary waterproofing material made of metal used for roof waterproofing, a secondary waterproofing material with a water leakage detection function including electrodes and separators, a roof substrate, a waterproof layer, and a roof waterproofing including the secondary waterproofing material with a water leakage detection function. The present invention relates to a structure and a method for detecting water leakage in a waterproof layer provided on the roof.

It is common practice to provide a waterproof layer on the roof of a building using construction methods such as asphalt waterproofing, sheet waterproofing, and coating film waterproofing. If water leakage occurs in the waterproof layer and its discovery is delayed, the building may be severely damaged. Therefore, various methods have been devised for detecting water leakage in the waterproof layer.

For example, Japanese Patent Application Laid-Open No. 2004-233142 (Patent Document 1) describes a conductive layer laid between a waterproof layer and a frame, a first electrode electrically connected to the conductive layer, and a reinforcing bar embedded in the frame. An electrically connected second electrode, a current measuring device for measuring electrical conductivity between the first electrode and the second electrode, and water leakage based on measurement data of the current measuring device. A water leakage detection system for detecting water leakage in a waterproof layer mounted on a frame of a building structure is disclosed.

Japanese Patent Application Laid-Open No. 2004-233142

In the water leakage detection system of Patent Document 1, since the conductive layer is provided on the entire surface of the skeleton of the building structure, the construction work is large-scale and the construction cost is also high.
An object of the present invention is to provide a secondary waterproofing material that can efficiently detect water leakage from a waterproofing layer provided on the roof of a building and that is easy to install.

The inventor of the present invention has completed the present invention by discovering that a water leakage detection function can be imparted to the secondary metal waterproofing material used for roof waterproofing by attaching electrodes via a separator to the secondary metal waterproofing material.

The present invention (I) is a secondary waterproofing material made of metal used for roof waterproofing, a secondary waterproofing material with a water leakage detection function containing an electrode and a separator,
Metal waterproof sub-materials and electrodes are made of different metals,
The separator is made of a water-permeable and electrically insulating material,
The electrodes are attached to the metal waterproof secondary material through the separator,
Metal waterproof sub-materials and electrodes are not electrically connected by interposing a separator between them.
It is characterized in that a signal is generated when water enters between the metal waterproof sub-material and the electrode.

The present invention (II) is a roof waterproof structure comprising a roof substrate, a waterproof layer, and the auxiliary waterproofing material with a water leakage detection function of the present invention (I).

The present invention (III) is a method for detecting water leakage in a waterproof layer provided on a roof, wherein the auxiliary waterproofing material with a water leakage detection function of the present invention (I) is installed on the roof, and when water leakage occurs, a signal is received by the receiver, or the display device displays that there is water leakage.

The present invention includes the following embodiments.
[1] A secondary waterproofing material made of metal used for roof waterproofing, and a secondary waterproofing material with a water leakage detection function containing electrodes and separators,
Metal waterproof sub-materials and electrodes are made of different metals,
The separator is made of a water-permeable and electrically insulating material,
The electrodes are attached to the metal waterproof secondary material through the separator,
Metal waterproof sub-materials and electrodes are not electrically connected by interposing a separator between them.
A secondary waterproofing material with a water leakage detection function that generates a signal when water enters between the metal secondary waterproofing material and the electrode.
[2] According to [1], the auxiliary waterproofing material with a water leakage detection function further includes a signal generator, and the signal generator generates a signal when water enters between the metallic auxiliary waterproofing material and the electrode. Secondary waterproofing material with water leakage detection function.
[3] The auxiliary waterproof material with a water leakage detection function further includes a transmitter, and the transmitter transmits a signal when water enters between the metallic auxiliary waterproof material and the electrode, to [1] or [2] Secondary waterproof material with leak detection function described.
[4] The auxiliary waterproof material with a water leakage detection function further includes a display device, and when water enters between the metal auxiliary waterproof material and the electrode, the display device indicates that there is water leakage, [1] or The secondary waterproof material with a water leakage detection function according to [2].
[5] Any of [1] to [4], wherein the secondary metal waterproofing material is a drain, degassing cylinder, deaerator, fixture, terminal hardware, cant, corner patch, or double drain for repair work. Secondary waterproofing material with water leakage detection function described in .
[6] A waterproof roof structure comprising a roof substrate, a waterproof layer and the secondary waterproof material with a water leakage detection function according to any one of [1] to [5].
[7] A method for detecting water leakage from a waterproof layer provided on a roof, when the auxiliary waterproofing material with a water leakage detection function according to any one of [1] to [5] is installed on the roof and water leakage occurs. and causing a signal to be received by the receiver or display device to indicate that there has been a leak.

Since the secondary waterproofing material with a water leakage detection function of the present invention has a water leakage detection function, additional work for installing the water leakage detection device is not required, and installation is easy. By using the auxiliary waterproofing material with a water leakage detection function of the present invention, it is possible to detect water leakage in the waterproof layer on the roof of the building at an early stage, and to minimize damage caused by water leakage.

FIG. 1 is a projection view of a secondary waterproofing material with a water leakage detection function according to the first embodiment of the present invention. FIG. 2 is an exploded perspective view of a secondary waterproofing material with a water leakage detection function according to a second embodiment of the present invention. FIG. 3 is a projection view of a secondary waterproofing material with a water leakage detection function according to a third embodiment of the present invention. FIG. 4 is a perspective view of a secondary waterproof material with a water leakage detection function according to a fourth embodiment of the present invention. FIG. 5 is a cross-sectional view of an example of the roof waterproof structure of the present invention.

The present invention will be described in detail below with reference to the drawings, but the present invention is not limited to what is shown in the drawings.

FIG. 1 is a projection view of the secondary waterproof material with a water leakage detection function according to the first embodiment of the present invention, showing an example in which the secondary waterproof material is a de-cylinder. (a) is a sectional view taken along line II, and (b) is a bottom view. A secondary waterproof material 1 with a water leakage detection function includes a secondary waterproof material 2 made of metal, an electrode 3 and a separator 4 . The secondary metal waterproofing material 2 in FIG. The decoupling cylinder 21 is composed of an outer cylinder portion 22 , an inner cylinder portion 23 and a bottom plate portion 24 . The degassing cylinder 21 is made of metal. The separator 4 is made of a water-permeable and electrically insulating material. The material of the separator 4 is not limited, but for example, synthetic fiber mesh can be used. The electrode 3 is attached to the bottom plate portion 24 of the degassing cylinder 21 via the separator 4 . Decylinder 21 and electrode 3 are not electrically connected by interposing separator 4 therebetween. In the embodiment of FIG. 1, the electrodes 3 have a square strip shape, but the shape of the electrodes is not limited to that shape. The shape of the electrode may be annular, linear, circular, or polygonal. In the embodiment of FIG. 1, the electrodes 3 are attached to the bottom surface of the bottom plate portion 24, but they may be attached to the top surface of the bottom plate portion 24 as well. However, when detecting water leakage that has entered the lower surface of the waterproof layer, it is preferable to attach the electrode 3 to the lower surface of the bottom plate portion 24. However, if there is an electrode on the lower surface of the bottom plate, it is possible to detect water leakage in a part (wide range) far away from the degassing cylinder.).

The secondary waterproof material 1 with a water leakage detection function includes a signal generator 5 . The signal generator 5 is electrically connected to the metal waterproof sub-material 2 (de-cylinder 21 ) through a first connection cord 6 and electrically connected to the electrode 3 through a second connection cord 7 . The first connecting cord 6 in FIG. 1 is connected to the inner cylindrical portion 23 and conducts to the signal generator 5 the electricity generated when water enters between the electrode 3 and the bottom plate portion 24 of the decylinder. The first connection cord 6 may be connected to any part of the decylinder 21 as long as it is possible.

The secondary waterproof material is made of metal. The metal that constitutes the secondary waterproof material is not limited, but is preferably stainless steel or the like.
Here, metal also includes alloys.
The secondary metal waterproofing material 2 and the electrode 3 are made of different metals. The combination of dissimilar metals is not particularly limited as long as their ionization tendencies are different. Examples include a combination of stainless steel and zinc, a combination of copper and zinc, and the like. The electrode does not have to be made of a single metal, and may be a base material plated with a metal, or a base material coated with a conductive ink containing a metal.

Since the metal waterproof sub-material 2 and the electrode 3 are made of different metals, when water enters between the electrode 3 and the metal waterproof sub-material 2 (the bottom plate 24 of the de-cylinder 21), the water behaves as an electrolytic solution, Based on the difference in ionization tendency between the secondary metal waterproofing material 2 and the electrode 3, a potential difference is generated between the secondary waterproofing metal material 2 and the electrode 3, and the secondary waterproofing metal material 2 serves as a second electrode, That is, the metal waterproof sub-material 2 and the electrode 3 function as a battery, and the battery is used as a power source to drive the signal generator 5, and the signal generator 5 generates a signal.

The auxiliary waterproofing material with a water leakage detection function of the present invention transmits a signal by self-generated electricity when water enters between the metallic auxiliary waterproofing material and the electrode, so it does not require a separate power supply and can be used as a device. It can be miniaturized, is easy to install, and does not require maintenance such as power supply replacement.

The secondary waterproof material with a water leakage detection function of the present invention is characterized in that the secondary waterproof material itself made of metal serves as the second electrode. Since the secondary waterproofing material made of metal itself serves as the second electrode, it is possible to reduce the labor and cost of manufacturing compared to the case where both the positive electrode and the negative electrode are attached to the secondary waterproofing material, and the electrode area can be reduced. Since it can be made large, there is an advantage that the power generation efficiency can be increased.

The signal generated by the signal generator 5 is sent wirelessly or by wire to a display device (not shown), and the display device indicates that there is a water leak. The display device can be, but is not limited to, a smart phone or a computer.

If the signal is sent wirelessly, the secondary waterproofing material with water leakage detection function further includes a transmitter (not shown). A transmitter transmits a signal generated by a signal generator. The transmitted signal is received by a receiver (not shown) and a display indicates that there is a water leak. The receiver can be, but is not limited to, a smart phone or computer.

Examples of secondary metal waterproofing materials include, but are not limited to, drains, degassing cylinders, deaerators, fixtures, terminal hardware, cants, corner patches, double drains for repair work, and the like.

FIG. 2 is an exploded perspective view of a secondary waterproofing material with a water leakage detection function according to a second embodiment of the present invention, showing an example in which the secondary waterproofing material is a drain. The secondary waterproof material 1 with a water leakage detection function shown in FIG. The metal waterproof sub-material 2 in FIG. 2 is a drain 31 . The drain 31 includes a drain body 32 , a waterproof layer retainer 33 , a strainer 34 and a spacer 35 . However, spacers are not essential. The electrode 3 is attached to the top surface of the drain body 32 . A separator 4 is interposed between the electrode 3 and the drain body 32 . The surface of the drain 31 may be coated with paint, but at least a portion of the surface of the drain 31 with which the separator 4 is in contact has an exposed metal surface. The secondary waterproof material 1 with a water leakage detection function includes a signal generator 5 . The signal generator 5 is electrically connected to the metal waterproof sub-material 2 (drain 31 ) through a first connection cord 6 and electrically connected to the electrode 3 through a second connection cord 7 . The first connecting cord 6 in FIG. 2 is connected to the drain body 32 as long as it can conduct the electricity generated when water enters between the electrode 3 and the drain body 32 to the signal generator 5 . , the first connection cord 6 may be connected to any part of the drain 31 . The signal generator 5 may be attached to the drain 31 (eg, outside or inside the strainer 34), or may be installed at a location remote from the drain 31. FIG.
The secondary waterproofing material may be a double drain for refurbishment works. Duplex drains for retrofitting consist of a drain body and a drain cap, usually made of copper. If the double drain for retrofitting is made of copper, the electrodes are preferably made of zinc.

FIG. 3 is a projection view of a secondary waterproofing material with a water leakage detection function according to a third embodiment of the present invention, showing an example in which the secondary waterproofing material is a cant. (a) is a plan view, (b) is a front view, and (c) is a side view. The secondary waterproof material 1 with a water leakage detection function shown in FIG. The secondary metal waterproofing material 2 in FIG. 3 is a cant 41 . The cant 41 consists of a hollow cylinder with a trapezoidal cross section. Although the cant 41 in FIG. 3 has a trapezoidal cross-section, the cross-section is not limited to that shape and may be, for example, a right triangle. The electrode 3 is attached to the inner surface 43 of the bottom surface of the cant 41 . A separator 4 is interposed between the electrode 3 and the inner surface 43 of the bottom surface of the cant 41 . Although the electrodes 3 in FIG. 3 are attached to the inner surface 43 of the bottom surface of the cant 41, they may be attached to other locations. For example, it may be attached to the inner surface 44 of the upright surface of the cant 41 , the inner surface of the inclined surface 45 of the cant 41 , or the outer surface of the inclined surface 45 of the cant 41 . The secondary waterproof material 1 with a water leakage detection function includes a signal generator 5 . The signal generator 5 is electrically connected to the metal waterproof sub-material 2 (cant 41 ) through a first connection cord 6 and electrically connected to the electrode 3 through a second connection cord 7 . The first connecting cord 6 in FIG. 3, which is connected to the inner surface 44 of the upright surface of the cant 41, conducts the electricity generated when water enters between the electrode 3 and the cant 41 to the signal generator 5. The first connection cord 6 may be connected to any part of the cant 41 as long as it is possible. The signal generator 5 in FIG. 3 is attached to the inner surface 44 of the upright surface of the cant 41, but the attachment position is not limited, and it may be installed on the outer surface of the cant 41 or at a location away from the cant 41. . Although the electrodes 3 and separators 4 in FIG. 3 are attached to the inner surface of the cant 41 , they may be attached to the outer surface of the cant 41 . When the electrode 3 and the separator 4 are attached to the inner surface of the cant 41, at least part of the slope 45 of the cant 41 needs to be water permeable. In the embodiment of FIG. 3 , a portion of the slope of the cant 41 is made up of a wire mesh 42 . Instead of the wire mesh, a plurality of holes may be formed on the slope of the cant 41 to allow water to pass through.

FIG. 4 is a perspective view of a secondary waterproofing material with a water leakage detection function according to a fourth embodiment of the present invention, showing an example in which the secondary waterproofing material is terminal hardware. A secondary waterproof material 1 with a water leakage detection function includes a secondary waterproof material 2 made of metal, an electrode 3 and a separator 4 . The secondary metal waterproofing material 2 in FIG. Terminal hardware is generally an auxiliary material for fixing the ends of the waterproof layer. Terminal metal fittings 51 shown in FIG. 4 are for fixing the ends of the waterproof layer provided on the parapet in particular. plug the ends. If the application of the sealing material is incomplete, rainwater will enter from the ends of the waterproof layer, and water leakage will easily occur. By doing so, it is possible to prevent the expansion of damage caused by water leakage. The terminal hardware has a different shape depending on where it is used, but the shape of the terminal hardware is not limited.

The present invention (II) is a roof waterproof structure comprising a roof substrate, a waterproof layer, and the auxiliary waterproofing material with a water leakage detection function of the present invention (I). FIG. 5 is a cross-sectional view of an example of the roof waterproof structure of the present invention, showing an example in which the secondary waterproof material is a de-cylinder. In the embodiment of FIG. 5, the waterproof roof structure 11 includes a roof substrate 12, a heat insulating material 14, a waterproof layer 13, and a secondary waterproof material 1 with a water leakage detection function. The secondary waterproofing material 1 with a water leakage detection function includes a de-cylinder 21 , electrodes 3 and separators 4 . The de-cylinder 21 is installed on the heat insulating material 14 , and the de-cylinder bottom plate 24 , the electrode 3 and the separator 4 are embedded between the roof substrate 12 and the waterproof layer 13 . De-cylinder 21 serves to vent moisture from roof substrate 12 (eg, concrete) and/or insulation 14 to the atmosphere. When a water leak occurs in the waterproof layer 13 and water enters between the bottom plate portion 24 of the de-cylinder and the electrode 3, the bottom plate portion 24 and the electrode 3 of the de-cylinder function as a battery, and the signal generator 5 generates a signal. . In the embodiment of FIG. 5, the degassing cylinder 21 is installed on the heat insulating material 14, but it may be installed on the roof substrate 12. In the embodiment of FIG. 5, the waterproof roof structure 11 includes insulation 14, although insulation 14 is not required. Also, a double degassing type decylinder can be used as the decylinder. A double degassing type degassing cylinder has two inner cylinder parts (a first inner cylinder part and a second inner cylinder part with a smaller diameter than the first inner cylinder part) and two bottom plate parts (the first inner cylinder part). a first bottom plate portion coupled to the tubular portion and a second bottom plate portion coupled to the second inner tubular portion). When using a double degassing type de-cylinder, the second bottom plate portion is placed on the roof substrate 12 (eg concrete) and the first bottom plate portion is placed on the insulation.

The present invention (III) is a method for detecting water leakage in a waterproof layer provided on a roof. In the method of the present invention (III), the auxiliary waterproofing material with a water leakage detection function of the present invention (I) is installed on the roof, and when water leakage occurs, a signal is received by the receiver or the display device detects water leakage. It is characterized by displaying that. The receiver or display device is preferably, but not limited to, a smart phone or computer. By knowing that there was a water leak on a smartphone or computer, it is possible to prevent damage from water leakage at an early stage. Preferably, the receiver or the display device displays the location of the leak. In order to display the location of water leakage on the receiver or display device, the information on the installation location of the secondary waterproof material with water leakage detection function is stored in the signal generator, and when the signal generator transmits the signal, the information on the installation location is also stored at the same time. You can send it. The method for detecting water leakage according to the present invention can detect water leakage in the waterproof layer on the roof of the building at an early stage, and can minimize damage caused by water leakage.

INDUSTRIAL APPLICABILITY The auxiliary waterproofing material with a water leakage detection function of the present invention can be suitably used to detect water leakage in the waterproof layer on the roof of a building.

1 Subsidiary waterproofing material with water leakage detection function 2 Subsidiary metallic waterproofing material 3 Electrode 4 Separator 5 Signal generator 6 First connection cord 7 Second connection cord 11 Rooftop waterproof structure 12 Roof substrate 13 Waterproof layer 14 Insulating material 21 Removal Cylinder 22 Outer cylinder 23 Inner cylinder 24 Bottom plate 31 Drain 32 Drain body 33 Waterproof layer retainer 34 Strainer 35 Spacer 41 Cant 42 Wire mesh 43 Bottom inner surface 44 Vertical surface inner surface 45 Slope 51 Terminal hardware 52 Vertical surface 53 Upper surface

Claims (6)

A secondary waterproofing material made of metal used for roof waterproofing, a secondary waterproofing material with a water leakage detection function including electrodes and separators,
Metal waterproof sub-materials and electrodes are made of different metals,
The separator is made of a water-permeable and electrically insulating material,
The electrodes are attached to the metal waterproof secondary material through the separator,
Metal waterproof sub-materials and electrodes are not electrically connected by interposing a separator between them.
A signal is generated when water enters between the metal waterproof sub-material and the electrode ,
The secondary waterproofing material with a water leakage detection function further includes a transmitter, and when water enters between the metallic secondary waterproofing material and the electrode, the transmitter transmits a signal,
The secondary waterproofing material with a water leakage detection function is a secondary waterproofing material with a water leakage detection function that does not have a power supply . 2. The water leakage detection function according to claim 1, wherein the secondary waterproof material with a water leakage detection function further includes a signal generator, and the signal generator generates a signal when water enters between the metal secondary waterproof material and the electrode. With waterproof secondary material. 3. The secondary waterproof material with a water leakage detection function further includes a display device, and the display device indicates that there is water leakage when water enters between the metal secondary waterproof material and the electrode. A secondary waterproofing material with a leak detection function. 4. The secondary metal waterproofing material according to any one of claims 1 to 3 , wherein the secondary waterproofing material is a drain, a degassing cylinder, a deaerator, a fixture, a terminal hardware, a cant, a corner patch, or a double drain for repair work. Secondary waterproofing material with water leakage detection function. A roof waterproof structure comprising a roof base, a waterproof layer, and the secondary waterproof material with a water leakage detection function according to any one of claims 1 to 4 . A method for detecting water leakage in a waterproof layer provided on a roof, wherein the auxiliary waterproofing material with a water leakage detection function according to any one of claims 1 to 4 is installed on the roof, and when water leakage occurs, a signal is generated. is received by a receiver or a display device indicates that there is a leak.

Images