JP7036647B2 - Waterproof sheet repair structure and waterproof sheet repair method - Google Patents

Description

The present invention relates to a waterproof sheet repair structure and a waterproof sheet repair method for superimposing a new waterproof sheet on an existing waterproof sheet having an edge attached to the top end of the parapet.

Conventionally, when repairing a waterproof sheet on the roof of a building, it is known to construct a new waterproof sheet on the existing waterproof sheet (see, for example, Patent Document 1).

Patent Document 1 discloses a long holding metal fitting whose upper portion is in contact with the lower surface of the jaw portion of the parapet and whose lower portion is attached to the inner wall surface of the parapet by sandwiching a new waterproof sheet and an existing waterproof layer. There is.

JP-A-2017-66659

However, Patent Document 1 does not disclose a waterproof sheet mounting reinforcing component for mounting a new waterproof sheet on an existing waterproof sheet whose edge is attached to the top end of the parapet.

Therefore, the present invention provides a waterproof sheet mounting reinforcing component, a waterproof sheet repair structure, and a waterproof sheet repair method for superimposing a new waterproof sheet on an existing waterproof sheet whose edge is attached to the top end of the parapet. The purpose is to do.

In order to achieve the above object, the present invention has an edge of the existing waterproof sheet and an edge of the existing waterproof sheet in order to superimpose a new waterproof sheet on the existing waterproof sheet whose edge is attached to the top of the parapet. A waterproof sheet mounting having a horizontal portion arranged substantially horizontally between the new waterproof sheet and an inclined portion extending diagonally downward from the horizontal portion to the outside of the parapet. Reinforcing parts are provided.

Further, the waterproof sheet repair structure of the present invention is a waterproof sheet repair structure in which a new waterproof sheet is superposed on an existing waterproof sheet having an edge attached to the top end of the parapet, and the top end of the parapet. And the waterproof material for filling the gap between the waterproof sheet mounting reinforcing component and the waterproof sheet may be provided.

Further, in the waterproof sheet repair structure of the present invention, a non-landing adjusting member for adjusting the non-landing of the existing waterproof sheet may be provided between the existing waterproof sheet and the waterproof sheet mounting reinforcing component.

Further, in the waterproof sheet repair structure of the present invention, the waterproof sheet mounting reinforcing component may be mounted so as to press the existing waterproof sheet by a fastening component.

Further, the waterproof sheet repair method of the present invention is a waterproof sheet repair method in which a new waterproof sheet is superposed on an existing waterproof sheet having an edge attached to the top end of the parapet, and is a method of repairing the existing waterproof sheet. A waterproof sheet mounting reinforcing component mounting process for mounting the waterproof sheet mounting reinforcing component on the edge portion, and a new waterproof sheet mounting process for mounting the edge portion of the new waterproof sheet on the waterproof sheet mounting reinforcing component. May include.

Further, the waterproof sheet repair method of the present invention is a waterproof sheet repair method in which a new waterproof sheet is superposed on an existing waterproof sheet having an edge attached to the top of the parapet, and is a method of repairing the existing waterproof sheet. A non-landing adjustment step of mounting the non-landing adjusting member for adjusting the non-landing of the existing waterproof sheet on the edge portion, and a waterproof sheet mounting reinforcement for mounting the waterproof sheet mounting reinforcing component on the non-landing adjusting member. It may include a component mounting step and a new waterproof sheet mounting step of mounting the edge of the new waterproof sheet on the waterproof sheet mounting reinforcing component.

Since the waterproof sheet mounting reinforcement component used in the present invention has a horizontal portion, it is easy to attach the waterproof sheet mounting reinforcement component to the existing prevention sheet, and it is easy to attach a new waterproof sheet to the waterproof sheet mounting reinforcement component. Therefore, a new waterproof sheet can be easily stacked and attached to the existing waterproof sheet whose edge is attached to the top end of the parapet. Further, since the edge portion of the top end portion of the parapet can be covered by having the inclined portion, the parting edge becomes unnecessary, and the waterproof sheet mounting reinforcing part can function as a design part. In addition, by having a sloping portion, it is possible to minimize the influence on the diagonal line restriction stipulated by the Building Standards Act.

By providing a waterproof material that fills the gap between the top end of the parapet and the waterproof sheet mounting reinforcing component, it is possible to prevent water from entering between the parapet and the waterproof sheet mounting reinforcing component. It can be a refurbished structure of a waterproof sheet with excellent waterproofness. In addition, the deteriorated existing waterproof layer can be protected.

By providing a non-landing adjusting member for adjusting the non-landing of the existing waterproof sheet between the existing waterproof sheet and the waterproof sheet mounting reinforcing component, the non-landing portion of the existing waterproof sheet is flattened. Therefore, it is possible to eliminate the gap between the waterproof sheet mounting reinforcing component and the existing waterproof sheet and improve the waterproof property.

The waterproof sheet mounting reinforcing part is attached so as to press the existing waterproof sheet by the fastening parts, so that the end portion of the existing waterproof sheet can be prevented from being turned over, so that the durable waterproof sheet can be prevented. It can be a refurbished structure.

The waterproof sheet mounting reinforcing component mounting process for mounting the waterproof sheet mounting reinforcing component on the edge of the existing waterproof sheet, and a new method for mounting the edge of the new waterproof sheet on the waterproof sheet mounting reinforcing component. By including the waterproof sheet mounting process, a new waterproof sheet can be superposed on the existing waterproof sheet whose edge is attached to the top of the parapet by a simple method.

The non-landing adjustment step of mounting the non-landing adjusting member for adjusting the non-landing of the existing waterproof sheet on the edge of the existing waterproof sheet, and the waterproof sheet mounting reinforcing component on the non-landing adjusting member. By including a waterproof sheet mounting reinforcing component mounting process and a new waterproof sheet mounting step of mounting the edge of the new waterproof sheet on the waterproof sheet mounting reinforcing component, the edge portion can be easily used. A new waterproof sheet can be overlaid on the existing waterproof sheet attached to the top of the parapet. In addition, since the existing members are reused without being removed, it is possible to suppress the generation of waste materials at the site.

It is a block diagram which shows the structure of the unit building of Example 1. FIG. It is sectional drawing which shows the structure of the roof of the unit building of Example 1. FIG. It is sectional drawing which shows the structure of the existing waterproof layer of Example 1. FIG. It is sectional drawing which shows the structure of the new waterproof layer of Example 1. FIG. It is a perspective view which shows the structure of the waterproof sheet mounting reinforcement part of Example 1. FIG. It is explanatory drawing explaining the construction method of the new waterproof layer of Example 1. FIG. It is sectional drawing which shows the structure of the existing waterproof layer of Example 2. FIG. It is sectional drawing which shows the structure of the new waterproof layer of Example 2. FIG. It is explanatory drawing explaining the construction method of the new waterproof layer of Example 2. It is explanatory drawing explaining the construction method of the new waterproof layer of Example 2. It is sectional drawing which shows the structure of the existing waterproof layer of another Example.

Hereinafter, embodiments for realizing the waterproof sheet mounting reinforcing parts, the waterproof sheet repair structure, and the waterproof sheet repair method according to the present invention will be described with reference to Examples 1 and 2 shown in the drawings.

The waterproof sheet mounting reinforcing parts, the waterproof sheet repair structure, and the waterproof sheet repair method of the first embodiment are applied to a unit building constructed by adjoining a plurality of building units.

[Unit building configuration]
FIG. 1 is a configuration diagram showing the configuration of the unit building of the first embodiment. FIG. 2 is a configuration diagram showing the configuration of the roof of the unit building of the first embodiment. Hereinafter, the configuration of the unit building of the first embodiment will be described with reference to FIGS. 1 and 2.

In the unit building 1, a plurality of lower floor building units 3 are installed on the foundation 2, a plurality of upper floor building units 4 are installed on the lower floor building unit 3, and a plurality of upper floor building units 4 are installed on the upper floor building unit 4. The roof 10 is installed. A parapet 30 is provided on the peripheral edge of the roof 10.

Building units 3 and 4 consist of columns made of square steel pipes arranged at the corners, floor girders made of channel steel connecting the lower ends of the columns, and channel steel connecting the upper ends of the columns. It is a skeleton structure consisting of a ceiling girder and a girder.

As shown in FIG. 2, the lightweight cellular concrete plate 13 is installed on a plurality of roof beams 12 extending in parallel between the ceiling girders 11 facing each other. A mounting bracket 14 is provided at the end of the roof beam 12, and the mounting bracket 14 is bolted to the ceiling beam 11 via the spacer 15. A reinforcing metal fitting 17 is provided at the end of the lightweight cellular concrete plate 13, and the reinforcing metal fitting 17 is fixed to the spacer 15 with bolts. The upper surfaces of the lightweight cellular concrete plate 13 and the reinforcing hardware 17 form the flat portion A of the roof 10. An existing waterproof layer 50 is provided on the upper surfaces of the lightweight cellular concrete plate 13 and the reinforcing hardware 17.

A ceiling joist 18 is provided on the ceiling girder 11, and a gypsum board 19 is fixed to the lower side of the ceiling joist 18. A plurality of studs 20 are provided between the ceiling girder 11 and the floor girder. An outer wall panel 21 is attached to the outside of the stud 20. A gypsum board 22 is attached to the inside of the stud 20.

The mounting bracket 23 is fixed to the ceiling girder 11 with bolts. A decorative plate 25 is attached to the tip of the mounting bracket 23 via the arm member 24 to form the parapet 30. The upper surface 25a of the decorative plate 25 is configured as the top end portion B of the parapet 30. An existing waterproof layer 50 is provided on the upper surface 25a of the decorative board 25. The existing waterproof layer 50 is connected from the top end portion B of the parapet 30 to the flat portion A of the roof 10 via the gutter portion C of the parapet 30. An eaves ceiling 26 is provided below the mounting bracket 23.

[Construction of existing waterproof layer]
FIG. 3 is a configuration diagram showing the configuration of the existing waterproof layer 50 of the first embodiment. Hereinafter, the configuration of the existing waterproof layer 50 of the first embodiment will be described with reference to FIG.

The edge of the existing waterproof layer 50 is provided on the top end B of the parapet 30. The edge of the existing waterproof layer 50 is installed inside the outer end of the unit building 1 on the upper surface 25a of the decorative board 25.

In the existing waterproof layer 50, the first waterproof sheet 52 and the second waterproof sheet 53 as existing waterproof sheets are laminated on the upper surface of the vinyl chloride steel plate 51, and the adhesive tape 55 is attached to the lower surface of the vinyl chloride steel plate 51. Attached and formed.

The first waterproof sheet 52 and the second waterproof sheet 53 are formed of, for example, a vinyl chloride sheet. As the adhesive tape 55, for example, butyl tape can be used. The existing waterproof layer 50 is fixed to the arm member 24 via the decorative plate 25 by fastening parts such as rivets and screws while being installed on the upper surface 25a of the decorative plate 25.

[Structure of new waterproof layer]
FIG. 4 is a configuration diagram showing the configuration of the new waterproof layer 60 of the first embodiment. Hereinafter, the configuration of the new waterproof layer 60 of the first embodiment will be described with reference to FIG.

As shown in FIG. 4, the new waterproof layer 60 is mounted on top of the existing waterproof layer 50. The new waterproof layer 60 includes a coking agent 61 provided at the end of the existing waterproof layer 50, an adhesive tape 62 attached to the upper surface of the existing waterproof layer 50, and a waterproof sheet installed on the adhesive tape 62. The mounting reinforcing part 65, the waterproof material 63 that fills the gap between the adhesive tape 62 and the waterproof sheet mounting reinforcing part 65, the fastening part 66 that fixes the waterproof sheet mounting reinforcing part 65 to the parapet 30, and the waterproof sheet mounting reinforcing part 65. It is composed of a new waterproof sheet 67 attached to the upper surface.

The caulking agent 61 fills the ends of the existing waterproof layer 50. As the adhesive tape 62, for example, butyl tape can be used. The adhesive tape 62 is attached so as to cover the upper surface 25a of the decorative board 25, the caulking agent 61, and the upper surface of the existing waterproof layer 50.

The waterproof material 63 can be, for example, Eptseala (registered trademark). The waterproof material 63 is
It is a long material having a rectangular cross section, and fills the gap between the adhesive tape 62 and the waterproof sheet mounting reinforcing component 65.

For the fastener 66, for example, a drill screw can be used. The fastening component 66 has a predetermined length, and the waterproof sheet mounting reinforcing component 65 is attached to the arm member 24 via the existing waterproof layer 50 and the decorative plate 25. As a result, the waterproof sheet mounting reinforcing component 65 is mounted so as to press down the first waterproof sheet 52 and the second waterproof sheet 53 as the existing waterproof sheet.

For the new waterproof sheet 67, for example, a vinyl chloride sheet can be used. The new waterproof sheet 67 is attached to the waterproof sheet mounting reinforcing component 65 by welding. That is, the new waterproof sheet 67 is mounted on the first waterproof sheet 52 and the second waterproof sheet 53 as existing waterproof sheets.

[Structure of waterproof sheet mounting reinforcement parts]
FIG. 5 is a configuration diagram showing the configuration of the waterproof sheet mounting reinforcing component 65 of the first embodiment. Hereinafter, the configuration of the waterproof sheet mounting reinforcing component 65 of the first embodiment will be described with reference to FIG.

The waterproof sheet mounting reinforcing component 65 is made of a vinyl chloride steel plate. A plurality of waterproof sheet mounting reinforcing parts 65 are provided so as to be installed on the entire circumference of the top end portion B of the parapet 30. As shown in FIG. 5, the waterproof sheet mounting reinforcing component 65 has a horizontal portion 65a formed substantially horizontally, an inclined portion 65b inclined and extending from one end in the width direction of the horizontal portion 65a, and an inclination portion 65b. It is provided with a bent portion 65c formed by bending from the tip of the portion 65b to the back side (lower side) of the inclined portion 65b, and a through hole 65d formed at the bottom of the bent portion 65c.

The horizontal portion 65a has substantially the same width as the upper surface 25a of the decorative plate 25 and is formed in a band shape. The horizontal portion 65a is arranged between the existing second waterproof sheet 53 and the new waterproof sheet 67. The inclined portion 65b is the outside of the parapet 30 and extends diagonally downward. The inclined portion 65b extends substantially parallel to the side surface 25b of the decorative plate 25. The bent portion 65c is bent below the inclined portion 65b to form a U-shape. A plurality of through holes 65d are formed at the bottom of the U-shaped bent portion 65c.

A waterproof material 63 is attached to the waterproof sheet mounting reinforcing component 65. The waterproof material 63 can be, for example, a rubber-based foaming material such as Eptseala (registered trademark). The waterproof material 63 is formed in a rectangular shape, and is arranged so as to match the corner portion formed by the horizontal portion 65a and the inclined portion 65b of the waterproof sheet mounting reinforcing component 65.

[Construction method of new waterproof layer]
FIG. 6 is an explanatory diagram illustrating a method of constructing the new waterproof layer 60 of the first embodiment. Hereinafter, a method of constructing the new waterproof layer 60 of the first embodiment will be described with reference to FIG.

(Waterproofing process for existing waterproof layer)
In the waterproof treatment step of the existing waterproof layer 50, as shown in FIG. 6, the end portion of the existing waterproof layer 50 is filled with the caulking agent 61. Next, the adhesive tape 62 is attached so as to cover the upper surface 25a of the decorative board 25, the caulking agent 61, and the existing waterproof layer 50.

(Waterproof sheet mounting reinforcement parts mounting process)
In the waterproof sheet mounting reinforcing component mounting process, the waterproof sheet mounting reinforcing component 65 to which the waterproof material 63 is mounted is installed on the adhesive tape 62. The horizontal portion 65a of the waterproof sheet mounting reinforcing component 65 and the waterproof material 63 are attached to the adhesive tape 62.

Next, the fastening component 66 is screwed from above the horizontal portion 65a of the waterproof sheet mounting reinforcing component 65, and the waterproof sheet mounting reinforcing component 65 is attached to the arm member 24 via the existing waterproof layer 50 and the decorative plate 25. ..

(New tarpaulin installation process)
In the new waterproof sheet mounting process, the new waterproof sheet 67 is attached to the upper surface of the horizontal portion 65a of the waterproof sheet mounting reinforcing component 65 by welding.

The new waterproof layer 60 is constructed through a waterproof treatment step of the existing waterproof layer, a waterproof sheet mounting reinforcing component mounting step, and a new waterproof sheet mounting step.

Next, the operation of the waterproof sheet mounting reinforcing component of the first embodiment will be described. In the waterproof sheet mounting reinforcing component 65 of the first embodiment, a new waterproof sheet 67 is added to the existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53) whose edge is attached to the top end portion B of the parapet 30. Used for stacking. The waterproof sheet mounting reinforcing component 65 includes a horizontal portion 65a arranged substantially horizontally between the edge of the existing preventive sheet (first waterproof sheet 52, second waterproof sheet 53) and the new waterproof sheet 67. It is provided with an inclined portion 65b which is outside the parapet 30 from the horizontal portion 65a and extends diagonally downward (FIG. 4).

By having the horizontal portion 65a, it becomes easy to attach the waterproof sheet mounting reinforcement component 65 to the existing prevention sheet (first waterproof sheet 52, second waterproof sheet 53), and the new waterproof sheet 67 is attached to the waterproof sheet mounting reinforcing component. It becomes easy to attach to 65. Therefore, the new waterproof sheet 67 can be easily stacked and attached to the existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53) whose edge portion is attached to the top end portion B of the parapet 30.

Further, since the edge portion of the top end portion B of the parapet 30 can be covered by having the inclined portion 65b, the parting edge becomes unnecessary, and the waterproof sheet mounting reinforcing component 65 can function as a design component. can.

In the first embodiment, the tip of the inclined portion 65b has a bent portion 65c bent toward the back surface side of the inclined portion 65b (FIG. 5). As a result, the edge portion of the top end portion B of the parapet 30 can be obscured, so that the parting edge is unnecessary, and the waterproof sheet mounting reinforcing component 65 can function as a better design component.

In Example 1, the bent portion 65c has a through hole 65d (FIG. 5). As a result, the water accumulated in the bent portion 65c can be discharged. Therefore, the occurrence of rust can be suppressed without maintenance.

In the first embodiment, a waterproof sheet repair structure in which a new waterproof sheet 67 is superposed on an existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53) whose edge is attached to the top end portion B of the parapet 30. Therefore, a waterproof material 63 is provided to fill the gap between the top end portion B of the parapet 30 and the waterproof sheet mounting reinforcing component 65 (FIG. 4).

This makes it possible to prevent water from entering between the parapet 30 and the waterproof sheet mounting reinforcing component 65. Therefore, it is possible to obtain an excellent waterproof waterproof sheet repair structure.

In the first embodiment, the waterproof sheet mounting reinforcing component 65 is mounted by the fastening component 66 so as to press the existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53) (FIG. 4).

As a result, it is possible to prevent the edges of the existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53) from being turned over. Therefore, a durable waterproof sheet repair structure can be obtained.

In the method of repairing the waterproof sheet of the first embodiment, a new waterproof sheet 67 is superposed on the existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53) whose edge is attached to the top end portion B of the parapet 30. Install. This waterproof sheet repair method includes a waterproof sheet mounting reinforcing component mounting process for mounting the waterproof sheet mounting reinforcing component 65 on the edge of the existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53), and a waterproof sheet. A new waterproof sheet mounting step of mounting the edge of the new waterproof sheet 67 on the mounting reinforcing component 65 is included (FIG. 6).

As a result, a new waterproof sheet 67 is superposed on the existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53) whose edge is attached to the top end portion B of the parapet 30 by a simple method. Can be done.

First, the configuration of the waterproof sheet repair structure in the second embodiment will be described. The same or equivalent parts as those described in Example 1 will be described using the same terms or the same reference numerals.

The waterproof sheet repair structure of the second embodiment is different from the waterproof sheet repair structure of the first embodiment in that a non-landing adjusting member is provided between the existing waterproof layer and the waterproof sheet mounting reinforcing component.

[Construction of existing waterproof layer]
FIG. 7 is a configuration diagram showing the configuration of the existing waterproof layer 150 of the second embodiment. Hereinafter, the configuration of the existing waterproof layer 150 of the second embodiment will be described with reference to FIG. 7.

The existing waterproof layer 150 is formed by laminating a first waterproof sheet 52 on the upper surface of a vinyl chloride steel plate 51 and attaching an adhesive tape 55 to the lower surface of the vinyl chloride steel plate 51.

[Structure of new waterproof layer]
FIG. 8 is a configuration diagram showing the configuration of the new waterproof layer 160 of the second embodiment. Hereinafter, the configuration of the new waterproof layer 160 of the second embodiment will be described with reference to FIG.

The new waterproof layer 160 is a non-landing portion of the existing waterproof layer 150, and a non-land adjusting member 168 is provided between the existing waterproof layer 150 and the waterproof sheet mounting reinforcing component 65 via the adhesive tape 62. It will be provided. As the non-landing adjusting member, for example, a vinyl chloride sheet can be used.

[Construction method of new waterproof layer]
9 and 10 are explanatory views illustrating a method of constructing the new waterproof layer 160 of the second embodiment. Hereinafter, a method of constructing the new waterproof layer 160 of the second embodiment will be described with reference to FIG.

(Non-land adjustment process)
In the non-landing adjustment step, as shown in FIG. 9, the non-landing adjusting member 168 is installed at the edge of the first waterproof sheet 52 of the existing waterproof layer 150.

(Waterproofing process for existing waterproof layer)
In the waterproofing treatment step of the existing waterproof layer, as shown in FIG. 10, the end portion of the existing waterproof layer 150 is filled with the caulking agent 61. Next, the adhesive tape 62 is attached so as to cover the upper surface 25a of the decorative board 25, the caulking agent 61, and the non-landing adjusting member 168.

(Waterproof sheet mounting reinforcement parts mounting process)
In the waterproof sheet mounting reinforcing component mounting process, the waterproof sheet mounting reinforcing component 65 to which the waterproof material 63 is mounted is installed on the adhesive tape 62. The horizontal portion 65a of the waterproof sheet mounting reinforcing component 65 and the waterproof material 63 are attached to the adhesive tape 62.

Next, the fastening component 66 is screwed from above the horizontal portion 65a of the waterproof sheet mounting reinforcing component 65, and the waterproof sheet mounting reinforcing component 65 is attached to the arm member 24 via the existing waterproof layer 50 and the decorative plate 25. ..

(New tarpaulin installation process)
In the new waterproof sheet mounting process, the new waterproof sheet 67 is attached to the upper surface of the horizontal portion 65a of the waterproof sheet mounting reinforcing component 65 by welding.

The new waterproof layer 60 is constructed through a non-landing adjustment step, a waterproof treatment step of the existing waterproof layer, a waterproof sheet mounting reinforcement component mounting step, and a new waterproof sheet mounting step.

Next, the operation of the waterproof sheet mounting reinforcing component of the second embodiment will be described. In the second embodiment, the non-landing adjustment member for adjusting the non-landing of the existing waterproof sheet (first waterproof sheet 52) between the existing waterproof sheet (first waterproof sheet 52) and the waterproof sheet mounting reinforcing component 65. 168 was provided (FIG. 8).

As a result, the non-landing portion of the existing waterproof sheet (first waterproof sheet 52) can be flattened. Therefore, the waterproof sheet mounting reinforcing component 65 can be mounted on the flat portion. As a result, the gap between the waterproof sheet mounting reinforcing component 65 and the existing waterproof sheet (first waterproof sheet 52) can be eliminated, and the waterproof property can be improved.

In the method of repairing the waterproof sheet of the second embodiment, the new waterproof sheet 67 is superposed on the existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53) whose edge is attached to the top end portion B of the parapet 30. Install. This tarpaulin repair method includes a non-landing adjustment step of attaching a non-landing adjusting member 168 for adjusting the non-landing of the existing waterproof sheet on the edge of the existing waterproof sheet, and a non-landing adjusting member 168. Includes a tarpaulin mounting reinforcement component mounting process for mounting the tarpaulin mounting reinforcement 65 and a new tarpaulin mounting step for mounting the edge of the tarpaulin 67 on top of the tarpaulin mounting reinforcement 65 (FIG. 10). ..

As a result, a new waterproof sheet 67 is superposed on the existing waterproof sheet (first waterproof sheet 52, second waterproof sheet 53) whose edge is attached to the top end B of the parapet 30 by a simple method. Can be done. Since the other configurations and effects of Example 2 are substantially the same as those of Example 1, description thereof will be omitted.

The waterproof sheet mounting reinforcing parts, the waterproof sheet repair structure, and the waterproof sheet repair method of the present invention have been described above based on the first and second embodiments. However, the specific configuration is not limited to these examples, and as long as it does not deviate from the gist of the invention according to each claim, the combination of the examples, the design change or addition, etc. Is acceptable.

In Examples 1 and 2, the waterproof material 63 is attached to the horizontal portion 65a of the waterproof sheet mounting reinforcing component 65. However, the waterproof material may be attached to the inclined portion 65b of the waterproof sheet mounting reinforcing component 65.

In Examples 1 and 2, the bent portion 65c of the waterproof sheet mounting reinforcing component 65 is bent by 180 ° from the inclined portion 65b. However, the bent portion of the waterproof sheet mounting reinforcing component is not limited to this embodiment, and may be bent by, for example, 90 ° from the inclined portion.

In the second embodiment, the first waterproof sheet 52 is laminated on the upper surface of the vinyl chloride steel plate 51, and the adhesive tape 55 is attached to the lower surface of the vinyl chloride steel plate 51 to form a new waterproof layer 150. The configuration in which the waterproof layers 160 are stacked and attached is shown. However, as shown in FIG. 11, a new waterproof layer is provided with respect to the existing waterproof layer 250 formed by attaching the adhesive tape 55 to the lower surface of the existing vinyl chloride steel plate 51 that functions as the existing waterproof sheet. It may be mounted in layers. The new waterproof layer 60 of Example 1 or the new waterproof layer 160 of Example 2 can be applied to the existing waterproof layer 250 configured as described above.

An example of applying the waterproof sheet mounting reinforcing component, the waterproof sheet repair structure, and the waterproof sheet repair method of the present invention to a unit building is shown. However, the present invention is also applicable to general steel-framed buildings, conventional construction method buildings, and two-by-four type buildings.

1 Unit building 10 Roof 30 Parapet 52 1st tarpaulin (an example of existing tarpaulin)
53 Second tarpaulin (an example of an existing tarpaulin)
63 Waterproof material 65 Waterproof sheet mounting reinforcement parts 65a Horizontal part 65b Inclined part 65c Bent part 65d Through hole 67 New waterproof sheet 168 Landless adjustment member B Top end

Claims (5)

It is a waterproof sheet repair structure that attaches a new waterproof sheet on top of the existing waterproof sheet with the edge attached to the top of the parapet.
A horizontal portion arranged substantially horizontally between the edge of the existing preventive sheet and the new waterproof sheet,
A waterproof sheet mounting reinforcing component is provided, which is provided with an inclined portion extending diagonally downward from the horizontal portion to the outside of the parapet.
A waterproof sheet repair structure characterized by providing a waterproof material that fills the gap between the top end of the parapet and the waterproof sheet mounting reinforcing component. The waterproof sheet according to claim 1 , wherein a non-landing adjusting member for adjusting the non-landing of the existing waterproof sheet is provided between the existing waterproof sheet and the waterproof sheet mounting reinforcing component. Repair structure. The waterproof sheet repair structure according to claim 1 or 2 , wherein the waterproof sheet mounting reinforcing component is mounted so as to press the existing waterproof sheet by a fastening component. It is a method of repairing a tarpaulin that attaches a new tarpaulin on top of an existing tarpaulin with the edge attached to the top of the parapet.
A horizontal portion arranged substantially horizontally between the edge of the existing preventive sheet and the new waterproof sheet,
A tarpaulin mounting reinforcement component comprising an inclined portion extending diagonally downward from the horizontal portion to the outside of the parapet is used.
The waterproof sheet mounting reinforcement component mounting process for mounting the waterproof sheet mounting reinforcing component on the edge of the existing waterproof sheet,
A method for repairing a waterproof sheet, which comprises a new waterproof sheet mounting step of mounting the edge of the new waterproof sheet on the waterproof sheet mounting reinforcing component. It is a method of repairing a tarpaulin that attaches a new tarpaulin on top of an existing tarpaulin with the edge attached to the top of the parapet.
A horizontal portion arranged substantially horizontally between the edge of the existing preventive sheet and the new waterproof sheet,
A tarpaulin mounting reinforcement component comprising an inclined portion extending diagonally downward from the horizontal portion to the outside of the parapet is used.
A non-landing adjustment step of attaching a non-landing adjusting member for adjusting the non-landing of the existing waterproof sheet on the edge of the existing waterproof sheet, and
The waterproof sheet mounting reinforcement component mounting process for mounting the waterproof sheet mounting reinforcing component on the non-landing adjustment member,
A method for repairing a waterproof sheet, which comprises a new waterproof sheet mounting step of mounting the edge of the new waterproof sheet on the waterproof sheet mounting reinforcing component.

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