JP3040505U - Waterproof structure - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a waterproof structure using a waterproof material-coated perforated waterproof sheet that can improve the waterproof property, reduce the material and work cost, and simplify the site work. And [Structure] Using a waterproof material-coated perforated waterproof sheet in which a waterproof material is applied to the surface of the waterproof sheet except for a predetermined size portion required for a joint lap joint of waterproof sheet ends and holes of 1 to 10 mm are formed at predetermined intervals Laying this on a waterproof construction surface and applying a waterproof material, applying a protective waterproof material to the hole part of the waterproof sheet and pouring the protective waterproof material from the hole part Only the area around the hole part of the waterproof sheet is waterproof surface After the end point of the waterproof sheet is overlapped with the waterproof protective material, the protective waterproof material and the finishing material are applied to the waterproof sheet surface where the waterproof material application holes are formed.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a waterproof structure using a waterproof material-coated perforated waterproof sheet for a roof, rooftop, balcony, floor, etc. of a building.

[0002]

[Prior art]

 Conventionally, a waterproof sheet is laid on the waterproof construction surface such as a roof, a roof, a balcony, and a floor of a building to prevent rainwater from entering a room.

When such a waterproof sheet is used, the waterproof sheet is laid and fixed by directly hitting the waterproof surface with a fixing means such as a tack or a tacker, or is laid and fixed to the lower surface of the waterproof sheet with an adhesive. Was.

However, when the waterproofing sheet is fixed using a fixing means such as a tack or a tucker, the fixing means is exposed to the outside, and further, the fixing means reaches the base and the tack or the tacker is fixed. Rainwater infiltrated through the perforation of the pit, causing a leak.

[0005] Furthermore, attaching the entire back surface of the waterproof sheet with an adhesive requires skill in the work of applying the adhesive at the construction site, which is troublesome and causes an increase in cost.

[0006] When the entire back surface of the waterproof sheet is adhered to the waterproof construction surface with an adhesive, for example, when cracks occur on the waterproof construction surface, for example, when concrete or the like is cracked. Intrusion of rainwater will occur.

In the sheet waterproofing method, in addition to the entire surface bonding method of the waterproof sheet, there are a spotting method in which partial bonding is performed, a floating method in which only the end of the waterproof layer is bonded to the base, and an insulating method. In each case, it took much time to complete the construction work on site, and it was not possible to reduce costs.

[0008] There is a perforated tarpaulin in the asphalt tarpaulin. This purpose is a hole for so-called degassing for removing air. Since the asphalt waterproofing method uses thick coating, air can easily accumulate in the asphalt waterproofing method, which can be a major cause of blistering and deterioration of the asphalt waterproofing layer. Cracks in the ground such as concrete will also cause cracks in the asphalt waterproof layer. Therefore, a vent hole is required to release air, which is completely different from the purpose of the present invention. On the contrary, in the case of the present invention, it is a waterproof structure that may contain air.

[0009]

[Problems to be solved by the device]

 The present invention has been made in view of such circumstances, and provides a waterproof structure using a waterproof material-coated perforated waterproof sheet that improves waterproofness, reduces materials and work costs, and simplifies on-site work. Is intended.

[0010]

[Means for Solving the Problems]

 To achieve this purpose, a waterproof material is applied to the surface of the waterproof sheet except for the predetermined dimension required for the joint lap joint at the end of the waterproof sheet, and holes of 1 to 10 mm are made at predetermined intervals. Lay it on the waterproof surface and apply the waterproof material.Apply the waterproof protective material to the hole part of the waterproof sheet and pour the waterproof protective material from the hole part.Apply the waterproof material only around the hole part of the waterproof sheet. Waterproofing construction This is a waterproof structure in which the waterproof waterproofing material is point-joined, the edges of the waterproofing sheet are overlapped with a waterproofing protective material, and then a waterproofing material application hole is formed and a protective waterproofing material and a finishing material are applied to the waterproofing sheet surface.

[0011]

[Action]

 According to the waterproof structure using the waterproof material-coated perforated waterproof sheet according to the present invention, even if a crack is formed on the waterproof construction surface, the waterproof sheet only peels off the point joints around the cracked portion and damages the waterproof sheet itself. Does not happen. This is because a waterproof sheet with waterproof material applied holes is laid on the waterproof surface, the protective waterproof material is applied to the hole portion of the waterproof sheet with waterproof material applied holes, and the periphery of the hole portion is bonded to the base by point bonding. By waterproofing the upper surface of the waterproof sheet having the waterproof material application holes with a protective waterproof material, it is possible to easily and reliably carry out waterproofing work.

The waterproof sheet used as the waterproof material-coated perforated waterproof sheet is asphalt with rubber, vinyl chloride, polyethylene / vinyl acetate copolymer, synthetic rubber, neoprene, polyisobutylene, acrylic, or a combination thereof. It is possible to use various waterproof sheets such as synthetic fiber sheets, laminated non-woven cloth, and inorganic fibers such as glass fibers and non-combustible sheets of rock wool. Waterproof sheets made by laminating non-woven cloth with vinyl chloride or polyethylene are also used. The waterproof sheet with perforated waterproof material has high moisture permeation resistance, flexibility that allows it to easily follow the shape of the construction site, and joint properties when joining waterproof sheets. .

The size of the hole formed on the surface of the waterproof material-coated waterproof sheet is in the range of 1 to 10 mm. If it is less than 1 mm, the protective waterproof material does not flow sufficiently and the adhesive joint with the waterproof surface is insufficient and it easily peels off. With a large hole of 10 mm or more, the adhesive strength around the hole increases and the partial extension force of the waterproof sheet. It becomes stronger and it becomes impossible to evenly attach the waterproof sheet.

The distance between the holes formed on the surface of the waterproof material-coated waterproof sheet must be determined depending on the size of the holes and the material of the waterproof sheet, but a range of 50 to 300 mm is preferable. If it is less than 50 mm, there will be too much space, and it will take time and effort for construction. This is because if the distance is 300 mm or more, the spacing is too large and the effect of spot bonding is reduced.

The protective waterproof material in which a waterproof sheet with perforated waterproof material is laid on a waterproof surface and is applied to the hole portion serves to protect the waterproof material. The waterproof membrane consists of a primer (primer), an intermediate coat (waterproof), a top coat (protective waterproof), and a top coat (finishing material). The protective waterproof material corresponds to the top coat of the coating film waterproof material, and in the present invention, the waterproof material applied to the waterproof sheet is referred to as the waterproof material application by combining the undercoat and the intermediate coating. The waterproof membrane is determined by the material of the perforated waterproof sheet, etc., but it is an emulsion type vinyl acetate resin type, emulsion type vinyl copolymer type, latex type rubber type, latex type epoxy modified rubber type, epoxy resin type, urethane type Etc. can be used.

It is desirable that the waterproof film used in the present invention be certified as a non-combustible material equivalent to the base material by the Ministry of Construction. This is because if the waterproof sheet is made of non-combustible inorganic fiber, it can be handled as a non-combustible material including all of the waterproof material, protective waterproof material, and finishing material applied on it.

[0017]

【Example】

 Hereinafter, embodiments of the present invention will be described.

Example A waterproof sheet in which a polyethylene film is attached to the upper surface of a non-woven fabric sheet made of synthetic resin, and a polyethylene tape is woven to the lower surface of the sheet, and the sheet is reinforced (trade name “Tyvek” Asahi DuPont Flash Van Products Emulsion type acrylic coating waterproof material (product name "Ribault Mighty" manufactured by Toyo Exterior Co., Ltd.) is applied to the surface of the product (made by the company), and holes of 5 mm are made at intervals of 150 mm in length and width. A waterproof sheet having holes for applying a waterproof material was produced. The waterproof material was not applied to the 50 mm portion from each end of the waterproof sheet, and the waterproof sheet joining and stacking margin was used.

Laying a waterproofing sheet with perforated waterproof material on the surface of the concrete foundation, and using a protective waterproofing material of emulsion type acrylic coating waterproof material (trade name “Revol Mighty” manufactured by Toyo Exterioria Co., Ltd.) in the hole part. Applying and applying the waterproof material The peripheries of the holes in the waterproof sheet were adhesively bonded to the finished concrete surface. Waterproofing material is applied to the seams of the perforated waterproofing sheet using a protective waterproofing material. A protective waterproof material was applied to the surface.

Applying waterproofing material Applying a protective waterproofing material and finishing material (top coat) of emulsion type acrylic coating waterproofing material (product name “Reball Mighty” made by Toyo Exterior Co., Ltd.) on the upper surface of the waterproofing sheet for waterproofing. I did. After that, an artificial crack with a width of 1 mm was created on the finish surface of the base concrete, but a waterproof material-coated hole around the crack had a hole-sealed waterproof sheet. No damage was observed and no abnormality was found in the waterproof layer.

[0021]

[Effect of the invention]

 As described above, the waterproof structure using the waterproof material perforated waterproof sheet according to the present invention makes use of the respective advantages of the insulation method and the crimping method, and can greatly simplify the on-site work. We were able to reduce costs, improve waterproofness, and improve conformability with the construction base surface.

[Brief description of the drawings]

Fig. 1 Waterproof sheet with perforated waterproof material

Fig. 2 Cross section of waterproofing waterproof sheet

[Explanation of symbols]

 1. Waterproof sheet with holes for applying waterproof material 2. Waterproof material 3. 3. Protective waterproofing and finishing materials Protective waterproofing material 5. Hole 6. Waterproof sheet 7. 7. Waterproof construction base Waterproof sheet overlapping seam part

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location B32B 3/06 B32B 3/06 E04D 1/20 E04D 1/20 A 5/14 5/14 H

Claims (1)

[Utility model registration claims] 1. A waterproofing sheet coated with waterproofing material, in which a waterproofing material is applied to the surface of the waterproofing sheet except for a predetermined size portion required for a joint lap joint at the end of the waterproofing sheet and holes of 1 to 10 mm are formed at predetermined intervals to waterproof the waterproofing sheet. Laying on the construction surface and applying waterproof material Applying a protective waterproof material to the hole part of the waterproof sheet and pouring the protective waterproof material from the hole part Waterproofing only the area around the hole part of the waterproof sheet is point-bonded to the construction surface, waterproof protection A waterproof structure in which a waterproof waterproof material and a finishing material are applied to the waterproof sheet surface after the waterproof sheet is perforated after the edges of the waterproof sheet are overlapped with each other.