JP2000088692A - Method for finding leak in the roof and liquid agent or paste being employed therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To find out leak in the building easily by coating an estimated leaking part with water soluble solution containing fluorescent dye or pigment from the outside of the building and then discharging water toward that part. SOLUTION: An estimated leaking part is coated with water soluble liquid containing fluorescent dye or pigment from the outside of the building and then water is discharged toward that part. When rain leaks from a part inserted with the fluorescent dye, discharged water permeates into the building while dissolving the fluorescent dye or pigment. When UV-rays are irradiated, the fluorescent dye or pigment is excited to emit fluorescence. It is substantially invisible in a bright place but can be recognized easily in a dark place, e.g. a garret. Since condensate contains no fluorescent dye or pigment and emits no fluorescence, it can be distinguished clearly from leaking rain.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting a leak in buildings such as houses, office buildings, and factory buildings, and to a water-soluble liquid or paste used for the method.

[0002]

2. Description of the Related Art Conventionally, leaks of buildings or the like have been found on a rainy day by tracing the path of rainwater intrusion, or cracks in roof tiles and cracks in outer walls, which are presumed to be leak locations. Alternatively, a hose or the like is used to discharge or sprinkle water to a drain plate attaching portion, a sash attaching portion, or the like, and a method is used to detect whether or not water has penetrated indoors by monitoring from the indoor side to find out.

[0003]

However, in the case of a normal building, a ceiling or an interior wall is provided on the indoor side,
In addition, insulation is often inserted between the roof and the ceiling, and between the exterior and interior walls, making it difficult to directly observe the inside of the building from the inside of the building, such as the back side of the roof or exterior wall, or the part where the drainboard is attached. There are many. Also, rainwater that has invaded from around the roof, outer wall, drain board attachment area, and sash does not seep into the room directly, but seeps into the room via the back surface of the roof base, tarky, or structural materials such as columns and beams. Often. Therefore, even if it observes from the indoor side, there are many cases where it is not possible to specify the leak location. In addition, these seeping water seeps into the heat insulating material and may stay there, and may seep out of the room from an unexpected place at an unexpected time.

[0004] In recent years, in order to increase the cooling and heating efficiency and realize energy saving by increasing the use of cooling and heating equipment, in most houses, a heat insulating material such as glass wool is placed in the outer wall of the house. In addition, during heating, the warm air in the room rises to the upper part and comes into contact with the ceiling. Therefore, in order to prevent the warm air in the room from being missed, a heat insulating material is often put in the space above the ceiling. For this reason, dew easily forms on the ceiling and inside the wall, and condensed water often stays in the heat insulating material. In such a case, even if a person enters the ceiling and observes, or a part of the interior wall is peeled off and observed, it is often difficult to distinguish the dew condensation water from the dew condensation water, and the dew condensation water is easily mistaken for rain leak water. Especially, since the attic is dark, it is difficult to distinguish between rainwater and dew water even when the person enters the attic and observes.

[0005]

The present invention solves the above-mentioned problems by means described below. That is,
A fluorescent dye or a fluorescent pigment is carried from the outside of the building at a location that is presumed to be a leak location, and water is discharged toward the portion. If the part where the fluorescent dye or the fluorescent pigment is inserted is a rain leaking part, the discharged water permeates into the building while dissolving the fluorescent dye or the fluorescent pigment.

[0006] If the rain leak location is the roof, people enter the attic and use ultraviolet light source light to radiate ultraviolet light to the roof base.
Irradiates structural materials such as tarki and pillars. When a fluorescent dye or a fluorescent pigment is contained in water, the fluorescent dye or the fluorescent pigment emits fluorescence when excited by ultraviolet rays. This fluorescence is hardly visible to the naked eye in a bright place, but can be easily recognized by the naked eye in a dark place such as an attic. Since the dew water does not emit fluorescent light because it does not contain a fluorescent dye or a fluorescent pigment, rain leak water and dew water can be clearly distinguished.

[0007] In other words, the fluorescent dye or the fluorescent pigment serves as a sign proving that water has passed through a location assumed to be a rain leak location and a route through which the water has passed. Therefore, if it seeps into the room, the leak is not very near,
Even if it oozes to an unexpected place along the pillars and beams,
If the fluorescent light can be traced, it is possible to locate a leaked point.

[0008] cracks on the outer wall and the drainboard mounting part on the eaves,
Leakage from the sash attachments will seep through the walls and into the room or under the floor. In addition, there is a case where the water leaking from the roof is transmitted between the turkey and the base of the roof, passes through the wall, and seeps into the room or under the floor. The underfloor can be occupied by a person, as in the case of the attic. If the water passing through the wall and seeping into the room contains a fluorescent dye or a fluorescent pigment, the room can be similarly distinguished from dew condensation water by irradiating the room with ultraviolet light.

[0009] Since the leaked water does not always seep out from the vicinity of the leaked portion, when there are a plurality of portions which are estimated to be the leaked portion in close proximity, each portion is sequentially inspected by the above procedure. By doing so, it is possible to specify the location of the leak, but it is also possible to simultaneously inspect a plurality of locations by changing the type of fluorescent dye or fluorescent pigment for each location of the leak. There are several types of fluorescent dyes or fluorescent pigments, such as those that emit bluish white light and those that emit greenish light.If fluorescent dyes or fluorescent pigments that emit light in different colors are used for each location, there are multiple rain leak locations. However, once a water is discharged, the location of the leak can be identified.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION In order to carry a fluorescent dye or a fluorescent pigment at a place which is presumed to be a leak location, it may be mixed with water or a water-soluble liquid and applied to a place which is presumed to be a leak location. If simply dissolved or mixed in water, it may be immediately absorbed by an outer wall material, a roof material, or the like, and may not be dissolved in the discharged or sprinkled water even if the water is sprinkled or sprinkled.

[0011] Therefore, it is preferable to add a water-soluble thickener such as a water-soluble polymer to impart viscosity, so that the water-soluble thickener is hardly penetrated into the roof tile or the outer wall material and then applied. Further, in addition to the water-soluble thickener, an extender such as a porous inorganic particle may be mixed into the paste, and the paste may be used by using a spatula or the like and imprinted at a location that is presumed to be a leak. Since the porous inorganic particles hold the fluorescent dye, they do not easily penetrate into roof tiles and outer wall materials.

[0012]

According to the present invention, a fluorescent dye or a fluorescent pigment is carried at a location which is presumed to be a rain leak location, and water oozing through the location emits fluorescence when irradiated with ultraviolet rays, so that dark water such as an attic can be obtained. It can be easily distinguished from dew condensation in places. When there are a plurality of locations that are estimated to be rain leak locations, the above-described aqueous liquid, a water-soluble mucus or a water-soluble paste added with a fluorescent dye or a fluorescent pigment that emits in a different color for each location, emits light. It is possible to determine from which part of the water the water has oozed out, and it is possible to identify the location of the leak.

[0013] The fluorescent dye or fluorescent pigment used in the present invention emits fluorescence when irradiated with ultraviolet light, and can be clearly seen even in a dark place. However, in a bright place, the fluorescent dye or fluorescent pigment used in the test is invisible. Even if the liquid containing the fluorescent pigment seeps into the room, it does not impair the beauty of the room.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Shun Tojo 5-2-1-1, Oji, Kita-ku, Tokyo Nippon Paper Industries Co., Ltd. F-term (reference) 2G067 AA19 BB15 CC02 DD10

Claims (3)

[Claims] 1. A method for finding a leaking location in a building, comprising applying a water-soluble liquid or a water-soluble mucus containing a fluorescent dye or a fluorescent pigment to a location that is presumed to be a leaking location from the outside of the building. Water is discharged or sprinkled toward the building, and the water seeping out of the building is irradiated with ultraviolet rays, and it is observed whether or not the seeping water emits fluorescence, thereby finding a leaking point. How to find a leak. 2. A method for finding a leaking part of a building, wherein a water-soluble paste containing a fluorescent dye or a fluorescent pigment is rubbed into a part which is presumed to be a leaking part from outside the building,
Discharge or sprinkle water toward the location, illuminate the water that seeps into the building with ultraviolet light, and observe whether or not the seeping water fluoresces, to find the leak location. And how to find a leak. 3. A water-soluble liquid or water-soluble mucus containing a fluorescent dye or a fluorescent pigment, or a water-soluble paste containing a fluorescent dye or a fluorescent pigment, which is a marker used to find a leaking point of a building.