JP3133695B2 - Waterproof construction method for irregularly shaped protrusions on flat roofs, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for waterproofing a trapezoidal shaped projection on which a support such as an antenna, a fence or a clothesline is installed, for example, on a flat roof on which a waterproof sheet is laid.

[0002]

2. Description of the Related Art Conventionally, a so-called insulation method, in which a waterproof sheet is floated and laid, has been widely used as a waterproof construction method for a flat roof of a building made of a concrete body. In such a waterproof construction method, for example, when there is a so-called irregular projection such as a pedestal for installing an antenna, a fence, a clothesline, etc., the same waterproof construction method is applied to such an irregular projection. It is common.

[0003] However, in the waterproofing of the irregularly shaped projection by the conventional waterproofing construction method, a sheet joining member as an accessory is fixed to the installation portion of the irregularly shaped projection, such as a column, the upper end portion and the lower end portion. Since the waterproof sheet is joined to the sheet joining member, the construction work such as finishing work of the skeleton for fixing the sheet joining member, fixing work of the same member, joining work of the waterproof sheet, etc. is complicated. In addition, there is a problem that skill is required, work time is long, and cost is high.

[0004] As a solution to the above-mentioned problems, a fiber base sheet is put on the irregularly shaped protrusions, and a synthetic resin waterproof coating is applied on the surface of the fiber base sheet to form a coating waterproof layer. A method in which the periphery of the waterproof layer is fixed to a floor surface to be waterproofed by a fixing plate, and the edge of a waterproof sheet stretched on the floor surface is joined to the fixing plate (for example, Japanese Patent Laid-Open No.
Japanese Patent Application Laid-Open No. 42119/1992) Further, after fixing the fixing device in the method a to the floor surface and joining the edge of the waterproof sheet to the fixing plate, the coating film waterproof layer is formed around the edge of the waterproof sheet. A method in which the projection is formed so as to be positioned on the edge and is bonded to the waterproof sheet by the adhesive force of the waterproof coating layer itself (for example, JP-A-6-42120). The position of the upper end edge is higher than, for example, a tubular body made of a polyvinyl chloride steel plate is fitted and covered, and a waterproof layer made of synthetic resin is poured into the inside of the tubular body to cover the irregularly shaped protrusion, and a waterproof layer is further formed. (See, for example, Japanese Patent Application Laid-Open No. 6-42121) in which the extended edge portion of the waterproof sheet stretched over the outer surface of the tubular body is joined.

However, in the method (1), since the edge of the waterproof sheet is joined to the peripheral part of the waterproof layer of the coating film, the waterproof sheet is stretched after completion of the coating work of the irregularly shaped projection. There is a problem that the number of construction days increases and the cost increases, and in the method (b), the plasticizer in the waterproof sheet shifts to the waterproof layer of the paint film in contact with the waterproof sheet. Not only is there a concern that the waterproof performance of the waterproofing layer will be lost, but if a weir of a certain height is not provided on the waterproofing sheet during construction, the thickness of the waterproof coating layer and a clear boundary cannot be secured, and other parts There is a problem that the waterproof sheet surface is stained with a synthetic resin waterproof paint and the appearance is reduced.In addition, in Method C, the shape of the irregularly shaped protrusion is not always constant, so a cylinder matching the shape of the irregularly shaped protrusion is used. The body There is a complexity that must be each time made. In particular, in the methods (a) and (b), a high level of skill and time is required for applying a synthetic resin waterproof paint in order to adjust the appearance quality of the irregularly shaped projection.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and does not require any special member regardless of the change in the shape of the irregularly-shaped projecting portion. An object of the present invention is to provide a waterproofing method for a projecting portion on a flat roof or the like which can perform waterproofing.

[0007]

SUMMARY OF THE INVENTION With the above object, the present invention provides a method for waterproofing a deformed projecting portion such as a support stand on a flat roof on which a waterproof sheet is laid. Around the lower fixing plate for attaching the sheet,
Also, an upper fixing plate for attaching a waterproof sheet is provided around the upper end side surface of the irregularly shaped projection so that the upper edge portion thereof is higher than the top end of the irregularly shaped projection, and the lower fixed plate and the upper fixing plate are fixed. After joining a waterproof sheet extending upward from the floor surface along the side surface of the deformed protrusion to the board, the synthetic resin is attached to the top end of the deformed protrusion to the height of the upper edge of the upper fixing plate. The gist of the invention is a method for waterproofing a protruding portion on a flat roof or the like, which is characterized by pouring in a waterproof material for coating film and solidifying the same.

[0008] In a preferred aspect of the present invention, in the method for waterproofing an irregularly-shaped protrusion on a flat roof or the like, an irregular shape is formed between a top edge of the irregularly-shaped protrusion and an inner surface of a waterproof sheet fixing plate. This is a method of waterproofing the irregularly shaped protrusions on a flat roof or the like in which a waterproofing material for a synthetic resin coating film flows into the top of the irregularly shaped protrusions after injecting a sealing material.

Further, another preferred embodiment of the present invention is a method for waterproofing a projecting portion on a flat roof or the like, wherein a protective coating is applied to the surface of the synthetic resin coating film waterproof material flowing into the top end of the irregular projecting portion. This is a waterproofing method for irregularly shaped protrusions on a flat roof with layers.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings and according to the work sequence of waterproofing work.

FIG. 1 is a cross-sectional view showing an irregularly shaped projection (1) on a flat roof (F) or the like on which a support (P) such as an antenna, a fence, a clothesline, etc. is planted. This shows a state where waterproofing has been performed by the law.

First, the upper end side surface (1) of the irregularly shaped projection (1)
An upper fixing plate (2) having a cross section of a letter-shaped waterproof sheet and having an upper edge portion (2a) at a position higher than a top end (1b) of the irregularly shaped protrusion (1) is provided around a). As described above, the lower fixing plate (3) having the L-shaped cross section and attached to the waterproof sheet is attached to the lower end side portion (1c) of the irregularly shaped projection (1) and the flat roof (F) by the fixing tool (f1). ) Floor (F
a) is installed around the fixture (f2). Here, when a synthetic resin-coated steel sheet such as a PVC steel sheet is used as the upper fixing plate (2), in order to prevent the cut end face of the steel sheet from being exposed and being affected by water, An inward fold is provided at the upper edge (2a) of the upper fixing plate (2).

Next, the waterproof sheet (4) laid on the flat roof (F) is extended from the floor surface (Fa) to the entire outer surface of the upper fixing plate (2) along the side surface of the irregularly shaped projection (1). And joined to the lower fixing plate (3) first, and then joined to the upper fixing plate (2) (right side in FIG. 1). In this case, the waterproof sheet (4) has a lower edge portion of a separate waterproof sheet piece (4 ') joined to the upper fixing plate (2) with the side surface of the irregularly shaped protrusion (1) wound around the upper fixed plate (2). The waterproof sheet (4) joined to the lower fixing plate (3) may be water-tightly connected (m) to an edge of the waterproof sheet (4) (left side in FIG. 1).

Further, the top end (1) of the irregularly shaped projection (1)
Into b), the synthetic resin waterproofing film (5) for waterproofing coating is poured to the height of the upper edge portion (2a) of the upper fixing plate (2) and solidified to form the waterproofing coating (6). Form.

In the above, when the waterproofing material (5) for a synthetic resin coating film is poured in, the periphery of the top end (1b) of the irregular projection (1) is made watertight in advance. Top edge periphery (1b ') of part (1) and upper fixing plate (2)
It is desirable to inject an irregular sealing material (7) between the inner surface (2b) and the entire circumference. In addition, in order to make the fixing device mounting portion watertight, the lower surface of each of the upper fixing plate (2) and the lower fixing plate (3) is provided on the lower surface.
It is desirable to provide a fixed sealing material (8).

In the present invention, a waterproofing material (5) for a synthetic resin coating film is poured into the top end (1b), and the solidified waterproof coating film (6) is protected to protect it from weathering deterioration. leather
A film may be formed by coating on the surface of the synthetic resin waterproofing material (5). The protective skin layer in this case, for example using an acrylic emulsion, which is coated formed by coating in the manner of conventional paint application.

Here, the respective materials used in the above-mentioned waterproofing construction method of the present invention will be described as follows.

First, urethane, epoxy, acrylurethane, acrylsilicone, etc. are applied as a material of the synthetic resin waterproofing material (5) for forming the waterproof coating film (6). The material is not limited, and any waterproof material made of a synthetic resin having a viscosity enough to exhibit so-called self-leveling property, which is usually used for waterproofing a flat area, may be used.

The thickness of the waterproof coating film (6) is usually 3 to 2
Although it is set to a range of 0 mm, depending on the flatness and levelness of the top end (1b), it is desirable to set the thickness thicker to absorb irregularities and the like. The thickness of the waterproof coating film (6) is set by adjusting the height of the upper edge (2a) of the upper fixing plate (2) provided on the upper side surface (1a) of the irregularly shaped projection (1). It is done by doing.

The upper fixed plate (2) and the lower fixed plate (3) are usually made of the same material. The material is hard or semi-hard synthetic resin plate, metal plate,
Alternatively, a plate-like body such as a polyvinyl chloride steel sheet coated with a polyvinyl chloride resin can be suitably applied, but the surface material of the fixing plate (2) is particularly preferably the same as that of the waterproof sheet (4). When a metal plate such as a PVC steel plate is used, it is desirable that the cut end be subjected to hemming or the end face be subjected to rust prevention.

Further, as fixing devices (f1) and (f2) for fixing the fixing plate, commercially available open leg nails, curl plugs and the like are preferably used since the fixing object is usually concrete.

Further, a floor surface (F) such as a flat roof (F) or the like may be used.
A waterproof sheet (4) laid on a) and stretched over the entire side surface of the irregularly shaped projection (1) is a thermoplastic synthetic resin sheet such as soft polyvinyl chloride, polyethylene, polypropylene, or the like, or a non-vulcanized rubber. A sheet and a rubber asphalt-based sheet are preferable, and a soft polyvinyl chloride resin sheet is particularly preferable from the viewpoint of bonding properties. The thickness is, for example, 1.0 to 2.5 mm.

As the irregular sealing material (7), a construction sealing agent known as a construction material can be used as it is, and the regular sealing material (8) has a waterproof property. However, any material may be used as long as it has such an adhesive property that it can be temporarily fixed to a steel plate.

[0024] Note that the protective skin film covering on the surface of the waterproof coating (6) is usually paints known as the weather-resistant coating
It is possible to use , for example, a fluorine-based paint is suitable.

As described above, according to the waterproofing method of the irregularly-shaped projecting portion of the flat roof or the like of the present invention, the upper fixing plate provided on the side of the upper end of the irregularly-shaped projecting portion has its upper edge previously formed with the irregularly-shaped projecting portion. Since the upper fixing plate is provided at a position higher than the top end, the upper fixing plate serves to support the upper edge of the waterproof sheet joined to the entire surface without deteriorating the appearance quality, and also the waterproofing poured into the top end. It plays a role of damping the waterproofing material for the synthetic resin coating film and setting the thickness of the waterproof coating film.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for waterproofing irregularly shaped projections on a flat roof or the like according to the present invention will be described below along with comparative examples. In addition, as the comparative examples, the above-mentioned methods a to c were adopted.

EXAMPLE On a floor made of concrete, three vertical
A pedestal pedestal was constructed from concrete, in which an aluminum pipe having a diameter of 5 cm was planted at the center and made of a square cube having a size of 00 mm x 300 mm x 300 mm.

Further, on the side of the upper end of the irregularly shaped protrusion,
Cut into strips from a commercially available 1.3 mm thick PVC steel plate,
An upper fixing plate having a width of 50 mm was arranged so that the upper edge thereof was 5 mm higher than the top end of the irregularly shaped projection, and was provided around the fixing tool. Also, on the lower side surface of the irregularly shaped protrusion,
A lower fixing plate made of the same material as the upper fixing plate and having a width of 50 mm on each side and having an L-shaped cross section was provided around the rising edge by a fixing tool.

Next, a waterproof sheet made of a soft polyvinyl chloride sheet having a thickness of 1.5 mm (trade name: Sunroid DN sheet, manufactured by Tsutsunaka Plastics Industry Co., Ltd.) is placed on a fixed distance around the irregularly shaped projection by an insulation method. It is stretched on the floor facing the deformed protrusion, its edge is joined to the lower fixing plate, and a separate waterproof sheet is wound around the deformed protrusion in a bobbin shape, and its upper edge is fixed to the upper fixing plate Then, the lower edge portion was joined to the edge portion of the waterproof sheet joined to the lower fixing plate in a watertight state.

Next, a waterproof material for a synthetic resin coating film for waterproof coating film (trade name: Sansilal Super, Mitsui Toatsu Chemicals Co., Ltd.) is provided on the top end of the irregularly shaped projection to the height of the upper edge of the upper fixing plate. Was poured and solidified to form a waterproof coating having a thickness of about 5 mm, and the waterproofing was completed.

In the above embodiment, the workability of the waterproofing work (the number of working days, the number of times of applying the waterproofing material for the paint film, the skill level), the finish condition (the appearance quality, the thickness condition of the waterproof paint film) and the necessity of special members Are shown in Table 1.

Comparative Examples 1 to 3 On the floor made of concrete, three pedestal pedestals exactly the same as those of the above-described embodiment were constructed as deformed projections.

Known methods (a) to (c) are applied to the three pedestal pedestals. Method (a) is described in JP-A-6-42119, method (b) is described in JP-A-6-42120, and method (C) is described in detail. Waterproofing was performed according to the methods disclosed in Japanese Unexamined Patent Publication No. 6-42121. The waterproof sheet and the fixing plate are made of the same material as that of the embodiment, and the same material as that of the embodiment is used as the waterproof material for the waterproof coating film in the method (a). For start-up, manufactured by Mitsui Toatsu Chemicals, Inc.).

For Comparative Examples 1 to 3 (methods I to C), the workability of the waterproofing work, the finished state, and the necessity of special members are also shown in Table 1.

[0035]

[Table 1]

As is apparent from Table 1, according to the waterproofing method for the irregularly shaped protrusions on the flat roof or the like of the present invention, Comparative Example 1 was used.
The workability and finish were good as compared with (Method A) and Comparative Example 2 (Method B). Comparative Examples 1 and 2
Regarding the appearance quality, the difference in surface condition between the waterproof sheet and the waterproof coating film is conspicuous (... 1)), and in Comparative Example 2, the waterproof sheet around the irregularly shaped projections is contaminated by unnecessary adhesion of the waterproof material. And it was unsightly (… 2)). Further, in Comparative Example 3, a cylindrical body corresponding to the shape of the odd-shaped projecting portion was required and manufactured. However, the production of the cylindrical body was very troublesome, despite the fact that the irregularly shaped projection had an extremely simple shape (3).

[0037]

As described above, according to the waterproofing method of the irregularly shaped projecting portion of the flat roof or the like according to the present invention, the lower fixing plate for attaching the waterproof sheet is provided around the lower end side of the irregularly shaped projecting portion, and the irregularly shaped projecting portion is provided. On the upper side surface of the upper side of the upper fixed plate of the waterproof sheet is attached so that the upper edge thereof is located at a position higher than the top end of the irregularly shaped protrusion, the lower fixed plate and the upper fixed plate, After joining a waterproof sheet extending upward from the floor along the side surface of the irregularly shaped protrusion, a waterproof sheet for waterproof coating is formed on the top end of the irregularly shaped protrusion to the height of the upper edge of the upper fixing plate. This is a special material regardless of whether there is a change in the shape of the irregular projection or the presence or absence of a foreign material such as a support at the top end, because not only is the workability good, but also the waterproof material for the synthetic resin coating film is poured and solidified. Easy installation work and good appearance finish There is an effect that can be performed.

Therefore, according to the present invention, there is an advantage that the cost of waterproofing the irregularly shaped projection can be suppressed.

[Brief description of the drawings]

FIG. 1 is a partial sectional view of a flat roof showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Irregular projecting part 1a ... Upper end side part 1b ... Top end 1c ... Lower end side part 2 ... Upper fixing plate 3 ... Lower fixing plate 4 ... Waterproof sheet 5 ... Waterproof material for synthetic resin coating film 6 ... Waterproof coating film 7 ... Irregular sealing material 8: Regular sealing material F: Flat roof Fa: Floor surface P: Prop

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) E04D 13/14 E04D 5/00 E04D 5/14 E04D 7/00

Claims (3)

(57) [Claims] 1. When waterproofing a deformed projecting portion such as a pillar installation stand on a flat roof or the like on which a waterproof sheet is laid, a lower fixing plate for attaching a waterproof sheet is provided around the lower end side surface of the deformed projecting portion. An upper fixing plate to which a waterproof sheet is attached is provided around the upper end side surface of the irregularly shaped projecting portion such that an upper edge portion thereof is higher than a top end of the irregularly shaped projecting portion, and the lower fixing plate and the upper fixing plate are provided. Then, after joining a waterproof sheet extending upward from the floor along the side surface of the deformed protrusion, the top end of the deformed protrusion is made of synthetic resin up to the height of the upper edge of the upper fixing plate. A waterproofing method for irregularly shaped protrusions on a flat roof or the like, characterized by pouring a waterproof material for a coating film and solidifying the same. 2. A synthetic resin coating film is applied to the top of the irregularly projecting portion after an irregular sealing material is injected between the top edge of the irregularly projecting portion and the inner surface of the upper fixing plate to which the waterproof sheet is attached. The waterproofing method for irregularly shaped protrusions on a flat roof or the like according to claim 1, wherein a waterproofing material is supplied. 3. A protective coating layer is provided on the surface of the synthetic resin coating waterproofing material flowing into the top end of the irregularly shaped projection.
Or the waterproofing method for irregularly shaped protrusions on a flat roof or the like according to 2.