JPH08209865A - Construction method of waterproof sheet for structure - Google Patents

Abstract

PURPOSE: To provide high-degree waterproof performance over a long period of time by reliably fixing a waterproof sheet without boring a hole in the waterproof sheet. CONSTITUTION: In a part where a waterproof sheet 11 covers a plane bottom wall A, fixing tools 23 having a head having a disk-shaped head part 23a are distributed in a dotted shape, and are penetrated through the waterproof sheet 11, and are fixed to the plane bottom wall A, and its head part is covered with a protective cover 13, and is adhered to the waterproof sheet 11 by liquid welding or thermal fusion, and in a corner part formed of the plane bottom wall A and a rising wall B, an L shaped plate material 21 is applied to the waterproof sheet 11 along the corner part, and is installed by nails. An additionally stuck waterproof sheet 12 is unfolded and extended up to the vicinity of the corner part of the plane bottom wall A from an inside surface of the rising wall B, and a surface of the L-shaped plate material 21 is covered with it, and the surface of the L-shaped plate material 21, the waterproof sheet 11 of the plane bottom wall A and the additionally stuck waterproof sheet 12 are adhered together by liquid welding or thermal fusion. The protective cover 13 is formed in a cap shape which is larger than the disk-shaped head part and has a recessed part of the size fitted for a head part shape, and the periphery of the protective cover 13 and the waterproof sheet 11 are adhered together by liquid welding or thermal fusion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing a waterproof sheet on the roof of a structure, a veranda, a balcony, or the like.

[0002]

2. Description of the Related Art Conventionally, as a method for mechanically fixing a waterproof sheet with screws or the like, for example, Japanese Patent Application Laid-Open No.
As shown in the official gazette, an intermediate fixture is attached to a base body such as a flat bottom wall or a rising wall, a waterproof sheet is laid on the intermediate fixture, and an adhesive is applied from the waterproof sheet at the place where the intermediate fixture is attached. Is injected between the intermediate fixture and the waterproof sheet by an injector and adhered.

[0003]

In the above-mentioned conventional construction method, it is not possible to confirm the bonding state of the adhesive injected between the intermediate fixing tool and the waterproof sheet, so that the intermediate fixing tool and the waterproof sheet are not checked. Will peel off early, or a hole will be created in the tarpaulin with an injector, resulting in pinholes, which will lead to water leakage from short-term use, or cracks from the pinholes. However, there is a drawback that the waterproof ability is reduced.

When the rising wall and the flat bottom wall are stretched with the same waterproof sheet, the waterproof sheet shrinks due to a change with time, and the waterproof sheet at the corners floats up due to tension, and eventually the waterproof sheet at that portion is used. Cracks occurred and caused water leakage.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and to provide a waterproof sheet mounting method for obtaining a high level of waterproof performance over a long period of time by securely fixing the waterproof sheet without making a hole in the waterproof sheet. Aim.

[0006]

Means taken by the present invention in order to solve the above-mentioned problems is to provide a method of insulating and waterproofing a section formed by a flat bottom wall such as a building roof and a rising wall.
A vinyl chloride resin waterproof sheet is spread over the flat bottom wall and the lower part of the rising wall, and a headed fixture having a disk-shaped head is distributed in a point-like manner in a portion of the waterproof sheet covering the flat bottom wall. Then, the waterproof sheet is pierced and fixed to the flat bottom wall to fix the waterproof sheet, and the head of the fixture is covered with a protective cover made of a vinyl chloride resin, and is liquid-welded to the waterproof sheet or At the corner formed by the heat-sealing and the flat bottom wall and the rising wall, an L-shaped plate made of a vinyl chloride resin-coated steel sheet having a substantially L-shaped cross section is applied along the corner. Then, the waterproof sheet is attached to the nail, and the polyvinyl chloride resin waterproof sheet is extended from the inner surface of the rising wall to the vicinity of the corner of the flat bottom wall to cover the surface of the L-shaped plate. , The L-shaped plate material Be solved by adhering the said waterproof sheet and bulking and tension tarpaulins surface and planar bottom wall by a liquid welding or thermal fusion.

Further, a waterproof sheet made of vinyl chloride resin laid on the flat bottom wall is fixed by driving the waterproof sheet through a penetrating fixture having a disk-shaped head distributed in a point-like manner. Cover the disc-shaped head of the fixture with a cap-shaped vinyl chloride resin protective cover having a recess larger than the size of the disc-shaped head of the fixture and having a size that matches the shape of the disc-shaped head. In addition, the problem is solved by bonding the periphery of the protective cover and the waterproof sheet by liquid welding or heat fusion.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a construction method of a waterproof sheet according to the present invention. As shown in FIGS. 1 to 4, in a section formed by a flat bottom wall A and a rising wall B such as a building roof, a vinyl chloride resin is formed over the surface of the flat bottom wall A and the vicinity of the corner of the rising wall B. The waterproof sheet 11 is spread. The polyvinyl chloride resin waterproof sheet 11 is provided with a head-mounted fixing member 2 distributed in a point-like manner.
The third disk-shaped head 23a is fixed to the flat bottom wall A. As shown in FIG. 4, an auxiliary sheet 14 made of a synthetic resin foam sheet such as polyethylene or a synthetic rubber foam sheet may be laid between the waterproof sheet 11 and the flat bottom wall A for cushioning and heat insulation. . It is also possible to fix between the disc-shaped head 23a of the fixing device 23 with the head and the vinyl chloride waterproof sheet 11 via a vinyl chloride resin backing sheet 15 for surface protection and cushioning of the waterproof sheet. .

As shown in FIG. 5, the fixing bracket 23 comprises a driving nail portion having a flat upper end and a disk-shaped head 23a having a certain width.
The surface of a is sealed with a protective cover 13 made of vinyl chloride resin. The disk-shaped head 23a is preferably a hard plate made of a metal such as a stainless steel plate, an aluminum plate, or a galvanized steel plate, and its surface is preferably covered with vinyl chloride resin.

The protective cover 13 is larger than the size of the disk-shaped head 23a, has a shape that completely covers the disk-shaped head 23a, and has a recess at the center corresponding to the shape of the disk-shaped head 23a. It can be a cap. The protective cover 13 is generally adhered to the waterproof sheet 11 by liquid welding or heat fusion. Further, when the protective cover 13 and the disk-shaped head 23a of the fixture are both covered with vinyl chloride resin, they can be bonded by liquid welding or heat fusion, and when not covered with vinyl chloride resin. Can be adhered with various adhesives and pressure-sensitive adhesives. The protective cover 13 may be made of a material having the same material as the waterproof sheet 11 and a base cloth which is not lined, and is further laminated with a woven cloth or a non-woven cloth such as glass fiber to prevent expansion and contraction. It may be.

Further, in order to prevent the upper end of the driving nail portion of the fixture 23 from being scratched by raising the protective cover 13, it is preferable that it does not protrude beyond the disk-shaped head 23a. It is particularly preferable to use a screw thread. The driving nail portion of the fixing tool 23 is a screw, a bolt, or a male screw shape including a plug and an anchor, and the waterproof sheet is driven into the disk-shaped head portion 23 by driving the waterproof sheet.
Fix with a. A structure may be provided in which a hole through which a male screw-shaped driving nail penetrates is provided in substantially the center of the disk-shaped head 23a, or the disk-shaped head 23a and the driving nail are integrally attached. The structure may be different. When the driving nail part and the disk-shaped head 23a are made of separate members, the size of the hole in the substantially central part of the disk-shaped head is larger than the axis of the driving nail part and smaller than the upper end. And

The size of the disk-shaped head portion 23a is not particularly limited, but if it is too small, it is difficult to hold the waterproof sheet by the surface, and if it is too large, it is difficult to construct, so the diameter is 50.
It is preferable that the thickness is about 200 mm and the thickness is about 0.5 to 3 mm. The length of the driving nail portion is appropriately selected so that it does not penetrate into the foundation to be constructed and does not penetrate, and the diameter of the shaft is also selected and used in the range of 3 to 20 mm depending on the material of the foundation.

The edge portion 11a of the vinyl chloride resin waterproof sheet 11 extends to the lower part of the rising wall B. And
An L-shaped plate member 21 made of a vinyl chloride resin-coated steel sheet as shown in FIG. 6 is applied to the corner portion along the corner portion as shown in FIG.
a is driven into the flat bottom wall or the rising wall, and the waterproof sheet is fixed along the corners.

The additional waterproof sheet 12 covers the inner portion of the rising wall B and the surface of the L-shaped plate member 21 and is extended to the surface of the waterproof sheet 11 on the flat bottom wall A. The additional waterproof sheet 12 is watertightly adhered to the surface of the L-shaped plate material 21 nailed to the corners by liquid welding or heat fusion, and the waterproof sheet 11 and the additional waterproof sheet 12 are joined together.
Is also bonded in a water-tight manner by liquid fusion or heat fusion, and the edges of the waterproof sheet 12 are further expanded.
Seal with 1 to improve water tightness.

At the upper end of the rising wall B, as shown in FIG. 1, an L-shaped plate material 22 made of a vinyl chloride-coated steel plate is used to cover the outer corners of the upper end of the rising wall and is nailed by a nail portion 22a. The stretched waterproof sheet 12 is spread so as to cover the upper portion 22, and the stretched waterproof sheet 12 and the L-shaped plate member 22 are joined by liquid welding or heat fusion, and the edge portion of the stretched waterproof sheet 12 is coated with liquid. Sealing is performed with the welding agent 31.

Further, as shown in FIGS. 2 and 3, the stretched waterproof sheet 12 is extended to the upper end of the rising wall B, and the above-mentioned L is placed on the extended waterproof sheet 12 at the upper outer corners. The template 22 may be nailed, and in this case, the head of the nail portion 22a is sealed, or another waterproof cover 2 of the same quality as the stretched waterproof sheet 12 as shown in FIG.
4, the L-shaped plate member 22 may be water-tightly covered.

[0017]

EFFECTS OF THE INVENTION The waterproof sheet construction method of the present invention does not require a hole to be formed in the waterproof sheet with an injector as in the conventional construction method, and therefore, no pin hole is formed, and moreover,
Since the extension work can be performed while checking the bonding state, it is possible to prevent accidents such as incomplete bonding and early leakage. In addition, the waterproof sheet laid on the flat bottom wall rises and extends to the vicinity of the corner at the bottom of the rising wall, so even if water accumulates on the rooftop, water enters from the edge of the waterproof sheet. Can be prevented.
Further, by using this, although it is a member having a simple structure of L-shaped plate material at the corner portion, that is, by using this, the waterproof sheet of the flat bottom wall at the corner portion is an L-shaped plate material made of vinyl chloride resin coated steel plate. Of the L-shaped plate material and the back surface of the expanded waterproof sheet are bonded by liquid welding or heat fusion,
Moreover, by bonding the edge of the expanded waterproof sheet to the waterproof sheet of the flat bottom wall by liquid welding or heat welding,
The adhesion of the waterproof sheet at the corners is assured, and the finish is extremely excellent in watertightness. In addition, by laying the waterproof sheet separately on the rising wall and the flat bottom wall, even if the waterproof sheet is shrunk, the waterproof sheet does not rise at the corners and cracks do not occur.

On the flat bottom wall, the surface of the headed fixture having the disk-shaped heads distributed in dots is covered with a protective cover, and the protective cover and the waterproof sheet are bonded by liquid welding or heat fusion. Since the waterproof sheet and the protective cover are integrally joined even at the fastener driving portion, the adhesive state is reliable and the watertight finish is obtained.
In addition, since the disk-shaped head of the fixture is slightly raised, the protective cover made of vinyl chloride resin must be larger than the disk-shaped head of the fixture, and a recess of a size that matches the shape of the disk-shaped head. The protective cover covers the disk-shaped head of the fixture with the protective cover, and the periphery of the protective cover and the waterproof sheet are adhered to each other by liquid welding or heat welding. Alignment of the disk-shaped head of the tool with the protective cover is easy, the disk-shaped head is completely contained in the recess of the protective cover, and the adhesive surface between the protective cover and the disk-shaped head and the surrounding waterproof sheet is parallel. As a result, adhesion is easy, wrinkles are not generated, and it is possible to easily adhere to the waterproof sheet, and the finished state is also beautiful.

Further, since the disk-shaped head portion of the fixture and the L-shaped plate member are covered with a sheet and a cover on the surface and the upper and lower surfaces,
Since it does not receive moisture from the concrete above and especially below, it does not corrode in a short period of time due to rust, and this also greatly extends the waterproof life.

The construction method of the present invention has an extremely simple structure in which the fixing tool is driven from above the waterproof sheet on the flat bottom wall and fixed at the corner portion with the L-shaped plate material, but the bonded state is maintained. It is possible to carry out the construction while confirming the above, and since these members are made of vinyl chloride resin, they can be integrally bonded by liquid welding or heat fusion, so they are excellent in watertightness, and the construction method is simple and the construction period is It is a waterproof construction method with excellent workability such as shortening.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a state in which a construction method of the present invention is applied.

FIG. 2 is another cross-sectional view of the rising wall portion.

FIG. 3 is another cross-sectional view of the rising wall portion.

FIG. 4 is another cross-sectional view of the rising wall portion.

FIG. 5 is an enlarged cross-sectional view of a portion for fixing the waterproof sheet to the flat bottom wall.

FIG. 6 is a cross-sectional view of an L-shaped plate material.

[Explanation of symbols]

A is a flat bottom wall, B is a rising wall, 11 is a vinyl chloride tarpaulin, 12 is a waterproof tarpaulin, 13 is a protective cover, 21 is an L-shaped plate material, 23 is a head fixture, and 23a is a fixture. Head.

Claims (2)

[Claims] In a method of insulating and waterproofing a section formed by a flat bottom wall and a rising wall such as a building roof, a polyvinyl chloride resin waterproof sheet is spread over the flat bottom wall and a lower portion of the rising wall, In a portion covering the flat bottom wall of the waterproof sheet, a headed fixing tool having a disk-shaped head is distributed in a point-like manner, and the waterproof sheet is fixed to the waterproof bottom sheet by driving the waterproof sheet through the waterproof bottom sheet. A head portion of the fixture is covered with a protective cover made of a vinyl chloride resin, and is adhered to the waterproof sheet by liquid welding or heat fusion, and a corner formed by the flat bottom wall and the rising wall. In the above, an L-shaped plate made of a polyvinyl chloride resin-coated steel sheet having a substantially L-shaped cross section is nailed to the waterproof sheet along the corners, and corners of the flat bottom wall are formed from the inner surface of the rising wall. Near the corner And spread the polyvinyl chloride waterproof sheet to cover the surface of the L-shaped plate material.
A method of constructing a waterproof sheet for a structure, comprising bonding the waterproof sheet on the surface of a template and a flat bottom wall to the expanded waterproof sheet by liquid welding or heat welding. 2. A tarpaulin made of vinyl chloride resin laid on a flat bottom wall is pierced through the tarpaulin with a headed fixture having disc-shaped heads distributed in dots, and fixed, The disk-shaped head of the fixture is covered with a cap-shaped vinyl chloride resin protective cover that is larger than the size of the disk-shaped head of the fixture with a head and has a recess size that matches the shape of the disk-shaped head. A method for constructing a waterproof sheet for a structure, characterized in that the periphery of the protective cover and the waterproof sheet are adhered to each other by liquid welding or heat fusion.