JPH11303330A - Waterproof reinforcing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retain the function of a waterproof layer for a long period by mounting a sheet releasable from a base material side on the overlapping joint part between base material such as roof corrugated sheets, and forming a waterproof layer thereon so as to follow the thermal change of the base materials. SOLUTION: A primer layer 15 for rust prevention and adhesion is applied for surface preparation, extending over a plate or corrugated sheet-like overlapping joint part 10 of metal plates, synthetic resin plates, rubber plates, inorganic plates or the like, an intermediate layer 16 is applied in a prescribed thickness thereon, and a finish coat 17 is further applied thereon to form a waterproof layer. In the formation of this waterproof layer, a sheet 19 such as cloth or tape having a release agent applied on base 11, 11' side (reverse side) is mounted on the overlapping joint part 10 to prevent the bases from being adhered to the waterproof layer. Even if the base plate bottom parts 14a, 14b of the bases 11, 11' are relatively moved (arrowed direction) by thermal deformation, a space C is formed to prevent the breakage of the waterproof layer. According to this, the durability of the waterproof layer can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a waterproof reinforcement structure. More specifically, the present invention relates to a waterproof reinforcing structure formed at a seam overlapped between base materials such as a corrugated sheet for a roof.

[0002]

2. Description of the Related Art A reinforced seam having a stretchable waterproof layer formed on one side slope portion to the other side slope portion of a corrugated sheet made of a metal plate, a synthetic resin, or the like is provided at an overlapping seam of a roof corrugated sheet. Structure is taken. The waterproof layer is generally composed of a primer layer also serving as rust preventive on the corrugated sheet surface, an intermediate layer made of tar or the like having a certain thickness, and a weather-resistant resin top coat layer.

[0003] However, the overlapping seam portion provided with such a waterproof layer may cause the waterproof layer to become fatigued due to natural factors over time, or to be damaged or broken because it cannot follow the movement or thermal deformation of the substrate. And the result is a loss of the waterproof function.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an elastic waterproofing layer provided on a lap seam portion (including a portion for connecting an accessory) of a substrate such as a corrugated sheet for a roof. An object of the present invention is to provide a reinforcing structure capable of following fatigue, movement of a substrate, thermal deformation, and the like, and capable of maintaining a waterproof function over time.

[0005] The object of the present invention is to provide a sheet in which the base material side can be peeled off on the base material surface of an overlapping seam connecting one side and the other side of the base material. This is achieved by a waterproof reinforcing structure in which a sheet is attached and a waterproof layer is formed on the sheet.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION As a base material, a flat plate or a corrugated plate such as a metal plate, a synthetic resin plate, a rubber plate, and an inorganic plate is used. The waterproof layer having the above-described configuration is formed at the overlapped seam connecting the flat plates, the flat plate and the corrugated plate, the corrugated plate, and the like. In addition,
The overlap seam may be either a horizontal overlap or a vertical overlap.

FIG. 1 shows one embodiment of the waterproof reinforcing structure according to the present invention as a horizontal overlapping seam portion 10 of a corrugated roof. Corrugated sheet 11 on one side and corrugated sheet 1 on the other side
1 'has tops 12 and 12' at the top and slopes 13 and 13 'on both sides, respectively, and the bottoms of the slopes 13 and 13' are formed as bottoms 14a and 14b having different shapes. Then, below the one flat bottom portion 14a, the other gutter groove bottom portion 14b is overlapped.

The surface of the corrugated sheet between the corrugated sheet slopes 13 and 13 'including the lap seam portion 10 constructed as described above is provided with a primer layer 15 which has both rust prevention and adhesion. The intermediate layer 16 is applied with a certain thickness, and a waterproof layer 20 on which a top coat 17 made of an elastic polymer substance is applied as a finishing layer is formed thereon. Note that the reinforcing cloth 18 may be embedded in the intermediate layer.

In forming the waterproof layer having such a structure, as shown in FIG. 2, a sheet-like material 19 capable of peeling the base material 11, 11 'side is provided at a lower portion of the waterproof layer and a little on each slope portion. Both are installed with a length of about 10 mm or more. The sheet-like material may be a film coated with a release agent on one side (by means such as silicone application, application of a release tape or a masking tape, etc.), and a film coated with an adhesive on the other side. A cloth that does not allow the middle layer components to penetrate may be used.
In this case, in order to temporarily fix the cloth on the seam partial corrugated sheet, an adhesive having low adhesiveness such as glue may be partially or entirely applied to the side facing the base material side.

As shown in FIG. 3, at the seam portion of the corrugated roof, one corrugated sheet 11 and the other corrugated sheet are provided.
Separated from 12 and there backup material for level adjustment
4, or as shown in FIG. 4, the foamed repair material 22 is filled in the space formed by the stacked seam portions of the corrugated sheets and the slope portion of each corrugated sheet, and the base material side is peeled from the surface of the repaired material. The mounting of the sheet-like material 19 and the formation of the waterproof layer 20 are enabled.

FIG. 5 shows a vertically overlapped seam portion of the corrugated sheet, and a sheet-like material 19 capable of separating the corrugated sheet side is attached to a portion where the corrugated sheets 31 and 31 'are vertically overlapped. Has been
A waterproof layer 20 is formed thereon.

FIG. 6 shows an embodiment in which the present invention is applied to an overlapping seam portion between a corrugated plate and an accessory joining portion. A sheet-like material 19 is attached, and a waterproof layer 20 is formed thereon.

[0013]

[Action] and

According to the waterproof reinforcement structure of the present invention,
Since the surface of the substrate at the overlapping seam and the side of the base material of the sheet-like material integrated with the waterproof layer are separated, the elastic waterproof layer can be used to prevent fatigue, substrate movement, and thermal deformation. Even if they are encountered, they are not fixed to the substrate,
As shown in the figure, each substrate bottom 14a, 14b relatively moves due to the displacement of each substrate bottom in the direction of the arrow, and as a result, the center of the sheet-like material is separated from the surface of the upper bottom 14a. The waterproof film is lifted up to form a floating space C between the board and the waterproof layer, so that it can follow the movement of the board without being affected by the movement of the board. As a result, the waterproof layer is not damaged or broken. Thus, the waterproof function can be maintained over time.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of one embodiment of a waterproof reinforcement structure according to the present invention.

FIG. 2 is a sectional view of a main part of the waterproof reinforcement structure.

FIG. 3 is a cross-sectional view of a waterproof reinforcement structure in a mode filled with a backup material.

FIG. 4 is a cross-sectional view of a waterproof reinforcing structure in which a repair material is filled.

FIG. 5 is a perspective view of a waterproof reinforcing structure in which corrugated plates are vertically stacked.

FIG. 6 is a perspective view of a seam portion connecting the corrugated sheet and the accessory joining portion.

[Explanation of symbols]

 10 Horizontal seam 11,12 Corrugated plate 13 Corrugated plate slope 14 Corrugated plate bottom 15 Primer layer 16 Intermediate layer 17 Top coat 18 Reinforcement cloth 19 Sheet material 20 Waterproof layer 21 Backup material 22 Repair material 31,41 Corrugated plate 42 Character

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Kanji Nishino 1 Kimitsu, Kimitsu-shi, Chiba Nippon Steel Co., Ltd. Inside the Kimitsu Works (72) Inventor Masaaki Murashige 1st Kimitsu, Kimitsu-shi, Chiba Nippon Steel Stock Inside the company Kimitsu Works

Claims (9)

[Claims] 1. A sheet-like material whose base material side is peelable is mounted on the surface of the base material at the overlapping seam portion connecting one side and the other side of the base material, and a waterproof layer is formed on the sheet-like material. Waterproof reinforcement structure formed by 2. A corrugated sheet for a roof, comprising a seam portion formed by overlapping corrugated sheets, and wherein a sheet-like material is mounted halfway along a corrugated sheet inclined surface on both sides thereof. The waterproof reinforcement structure described. 3. The waterproof reinforcing structure according to claim 1, wherein the sheet-like material on which the base material side is peelable is a cloth that does not allow a waterproof component to permeate. 4. The waterproof reinforcing structure according to claim 1, wherein a sheet-like material having a temporary fixing adhesive applied to a base material side is used. 5. The waterproof reinforcing structure according to claim 1, wherein a waterproof layer having a reinforcing cloth is formed. 6. The waterproof reinforcing structure according to claim 1, wherein the seam portion is formed of a horizontally or vertically laminated base material. 7. The waterproof reinforcing structure according to claim 1, wherein a space between the base material on one side and the base material on the other side of the overlapped seam portion is filled with a backup material. 8. A repair material is filled in a valley space formed by overlapping seam portions of corrugated sheets and each corrugated sheet slope,
The waterproof reinforcing structure according to claim 1, wherein a sheet-like material whose base material side is detachable and a waterproof layer are formed on the surface of the repair material. 9. The waterproof reinforcement structure according to claim 1, wherein the waterproof reinforcement structure is applied to a splicing portion of the corrugated plate and the accessory joining portion.