JP3048273U - Non-combustible perforated waterproof sheet - Google Patents

Abstract

(57) [Abstract] [Object] It is an object of the present invention to provide a non-combustible perforated waterproof sheet capable of simplifying on-site work by improving waterproofness and reducing materials and work costs. A non-combustible waterproof sheet is obtained by applying a non-combustible coating waterproof material to both or one side of a perforated non-combustible sheet having holes having a diameter of 2 to 15 mm at intervals of 3 to 50 mm.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a non-combustible perforated waterproof sheet used for a building roof, wall, rooftop, balcony, floor, and the like.

[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 foundation such as concrete will cause cracks in the asphalt waterproofing layer. Therefore, a vent hole is required to release air, which is completely different from the purpose of the present invention. In the case of the present invention, on the contrary, it is a waterproof sheet that can be waterproofed even if air is contained.

[0009]

[Problems to be solved by the invention]

 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a non-combustible perforated waterproof sheet which can improve the waterproof property, reduce materials and operation costs, and simplify on-site work.

[0010]

[Means for Solving the Problems]

 In order to achieve the object, a non-combustible waterproof sheet in which non-combustible coating waterproof material is applied to both sides or one side of the non-combustible waterproof sheet having holes of 2 to 15 mm in diameter at intervals of 3 to 50 mm in the non-combustible waterproof sheet. Make it.

[0011]

[Embodiment of the invention]

 When waterproofing is performed using the non-combustible perforated waterproofing sheet according to the present invention, even if a crack is formed in the waterproofing surface, the waterproofing sheet itself will be damaged only at the point joints around the cracked part, and the waterproofing sheet itself will be damaged Absent. This is because the non-combustible perforated waterproof sheet is laid on the waterproof construction surface, an adhesive is applied to the holes of the non-combustible perforated waterproof sheet, and the perimeters of the holes are bonded to the ground. Waterproofing can be performed easily and reliably by waterproofing the upper surface of the non-combustible perforated waterproof sheet with a waterproof coating material.

The non-combustible waterproof sheet used for the non-combustible perforated waterproof sheet has high moisture resistance, flexibility to easily follow the shape of the construction site, and joining properties when joining the waterproof sheet. Is what it is. Non-combustible waterproof sheet made of inorganic or metal fibers, made of glass fiber, carbon fiber, rock wool, magnesia fiber, phosphate fiber, modified asbestos fiber, ceramic fiber, stainless steel fiber, other metal fibers, or a combination of these. , A fiber sheet, a nonwoven fabric, or a laminate of these and subjected to a water-proof treatment.

As the non-combustible coating waterproofing material applied to both sides or one side of the non-combustible perforated waterproof sheet, use a non-combustible coating waterproofing material equivalent to the base material, which has been approved by the Ministry of Construction. A non-combustible waterproofing sheet coated with a non-combustible coating waterproofing material equivalent to the base material can be said to be a non-combustible waterproofing sheet coated with a non-combustible coating waterproofing material. It is desirable to apply the non-combustible coating waterproofing material to both sides of the non-combustible waterproofing sheet. However, in the case of minor waterproofing, it is not necessary to apply only one side and lay it on the construction side, and do not apply it on the side in contact with the construction side.

The size of the hole formed in the non-combustible waterproof sheet surface is in the range of 2 to 12 mm. If it is less than 2 mm, the adhesive will not flow sufficiently and the adhesive bonding with the waterproof construction surface will be insufficient and it will be easily peeled off. If it is larger than 12 mm, the adhesive force around the hole will be large and the partial elongation of the waterproof sheet will be strong. This makes it impossible to evenly attach a waterproof sheet with a non-combustible hole.

The interval between holes formed on the surface of the non-combustible waterproof sheet must be determined according to the size of the holes and the material of the waterproof sheet, but a range of 3 to 50 mm is preferable. If it is less than 3 mm, it takes too much space, and it takes time to complete the construction. If it is 50 mm or more, the interval is too large, and the effect of spot joining is reduced. The holes may be arranged in a grid pattern or in a staggered pattern.

When waterproofing is performed using a non-combustible perforated waterproof sheet, the adhesive to be laid on the waterproof construction surface and applied to the holes is determined by the material of the non-combustible perforated waterproof sheet, etc. 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.

[0017] Acrylic, urethane, ethylene-vinyl acetate copolymer, chloroprene, etc. are used as the waterproof coating material for waterproofing the upper surface of the non-combustible perforated waterproof sheet. Non-combustible coatings equivalent to the base material must be waterproof. Since the waterproof sheet is already coated with a waterproof coating, the waterproof coating is applied once after applying an adhesive, and then a top coat is applied.

[0018]

【Example】

 Hereinafter, embodiments of the present invention will be described.

Examples Base material on both sides of a non-combustible waterproof sheet laminated with a non-woven fabric sheet made of glass fiber An undercoat of equivalent non-combustible emulsion type acrylic coating waterproofing material (trade name "Reball Mighty" manufactured by Toyo Exterior Co., Ltd.) Then, an intermediate coating was applied once each, and a non-combustible perforated waterproof sheet having holes of 3 mm in diameter formed on this surface at an interval of 15 mm in each of length and width was prepared.

The waterproof construction was performed using the non-combustible perforated waterproof sheet according to the present invention. A non-combustible perforated waterproof sheet is laid on the surface of the base concrete finish, and an epoxy resin adhesive (trade name "Tilement EP-900" manufactured by Tilement Co., Ltd.) is applied to the holes to make the non-combustible perforated waterproof sheet The area around the hole was bonded and bonded to the base concrete finish.

Apply the middle coat and top coat once each to the upper surface of the non-combustible perforated waterproof sheet on the upper surface of the non-combustible emulsion-type acrylic coating water-proofing material (trade name: "Reball Mighty" manufactured by Toyo Exterior Co., Ltd.) Was performed. After that, an artificial crack with a width of 1 mm was created on the entire surface of the ground concrete surface, but a non-combustible hole around the crack was opened. Waterproof sheet was not damaged at all. No abnormalities occurred in the layers.

[0022]

[Effect of the invention]

 As described above, the non-combustible perforated waterproof sheet according to the present invention can greatly simplify on-site work, reduce materials and work costs, and improve high waterproofness and followability with a construction base surface. Was completed.

[Brief description of the drawings]

[Figure 1] Non-combustible perforated waterproof sheet

Fig. 2 Cross-sectional view of waterproof waterproof sheet

[Explanation of symbols]

 1. Non-combustible perforated waterproof sheet 2. Hole 3. 3. Waterproofing material for on-site coating 4. Waterproof coating film Non-combustible waterproof sheet 6. Adhesive 7. Waterproof base

Claims (1)

[Utility model registration claims] 1. A non-combustible waterproof sheet, characterized in that a non-combustible coating waterproof material is applied to both sides or one side of a non-combustible waterproof sheet having holes with a diameter of 2 to 15 mm at intervals of 3 to 50 mm. Sheet.