JPS6065862A - Waterproof construction method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waterproofing method suitable for rooftop waterproofing of structures, particularly rooftops with complex-shaped protrusions. ´ Various methods are used for waterproofing the rooftops of buildings, such as paint film waterproofing, sheet waterproofing, and metal plate waterproofing.

Paint film waterproofing and sheet waterproofing have been practiced for a long time.
? 71 (1) Although it has the advantage of being easily adaptable to various shapes, it has a short service life and often requires repair work. , the lifespan is particularly short, and there are many disadvantages, such as the fact that, when repaired, the entire surface must be repaired.

In addition, metal plate waterproofing is significantly superior to paint film waterproofing or sheet waterproofing in terms of mechanical strength, weather resistance, durability, etc., but due to its strength, it does not adapt well to individual irregularities and special shapes. This makes construction difficult. Furthermore, for example, if there is a cylindrical protrusion on the roof, it may not be possible to carry out the construction.

The present invention has been made in view of the above-mentioned circumstances, and when waterproofing rooftops, etc., general areas that are flat or have simple irregularities are treated with metal plates (n)j water, and finishings with special shapes are treated with water. The invention is characterized in that a flexible sheet-like material is watertightly bonded to a metal plate, and the flexibility of the flexible sheet-like material is used to adhere and cultivate the material. This makes it possible and easy to perform metal sheet waterproofing on roofs with special shapes that have cylindrical or irregular projections, which was difficult or impossible to do in the past, and aims to expand the use of metal sheet waterproofing. It is something that we try to do.

When waterproofing the upper part of a building structure, if there are protrusions such as ducts on the floor, corners, areas around rosettes, or on the floor, even if the protrusions are simple and rectangular in plan, For example, it is possible to construct around the protrusions using conventional methods such as connecting, bending, and cutting waterproof metal plates, but it is also possible to construct around the protrusions using conventional methods such as connecting, bending, and cutting waterproof metal plates. If there is a protrusion with a circular or complicated shape, the waterproof metal plate will not conform to the three-dimensional curved surface.
Metal plates cannot be used for waterproofing such structures.

The present invention is particularly designed to facilitate the construction of waterproof metal plates in places where such irregularly shaped protrusions are present.

Hereinafter, embodiments of the present invention will be described with reference to the drawings, taking construction around a cylindrical protrusion as an example.

The waterproof metal plate used in the present invention is made of a material suitable as a waterproof surface material, such as a conventionally known waterproof metal plate such as a stainless steel plate.

As shown in FIG. 1, a cylindrical protrusion B, such as an exhaust pipe, protrudes from the flat floor A on the roof of the building frame to be constructed. For the floor part A up to the vicinity of the protrusion B, as in the conventional method, the strip-shaped metal plate 1 is attached to the ribs 2, 2 on the sides of each other.
...... are joined, welded and installed. Then, each end of the gold kF and plate 1.1... is bent to form a raised part 3.3.
, 3, .

Next, the edge of each rising portion 3 is provided with a multi-angular small hole 5, 5.
. . . are drilled, and a flexible waterproof sheet-like material 6 is adhered using the small holes 5. Note that although this small hole 5 is circular in the drawings of the embodiment, the shape of this hole is a long hole,
Irregular holes can be determined as appropriate.

Six methods are conceivable for adhering this flexible waterproof sheet-like material 6. Figures 5 and 6 show an example.
The two waterproof sheets 7.7 are joined together watertightly using an adhesive 8 by sandwiching the edges of the metal plate 1 including the small holes 5 from both sides. As the waterproof sheet 7, for example, EPD
Polymer materials such as M+butyl rubber and rubber asphalt are suitable, and as the adhesive 8, for example, butyl rubber and neoprene rubber adhesives are suitable. Furthermore, when adhering the waterproof sheet 7.7, the small holes 5 are filled with the adhesive 8, so that the adhesives applied to both sides of the metal plate 1 are continuous through the small holes 5. This increases the adhesive strength between the metal plate 1 and the waterproof sheet-like material 6 and ensures watertightness.

7 and 8 show other examples of adhesion of the waterproof sheet-like material 6. In the example shown in FIG. After pasting a net-like core material 9 such as cloth, a waterproof membrane material 10 is applied to both surfaces thereof. In the case shown in FIG. 8, a wire mesh core material 9 is welded to the edge of the metal plate 1 in place of the glass cloth, and a waterproof membrane material 10 is applied to both surfaces of the core material 9. Suitable examples of the waterproof membrane material 10 include acrylic rubber, rubber asphalt, and silicone resin. Furthermore, when adhesion of the net-like core material 9 and application of the waterproof membrane material 0, heat can be applied to the edge of the metal plate to heat-seal the adhesive.

The above-described flexible waterproof sheet-like material 6 is usually bonded to the metal plate 1 by forming the raised phase portion 4 at the base of the protrusion B, and then
Construction is carried out on the metal plate 1, but instead of such on-site construction, a waterproof sheet-like material 6 is glued in advance to the metal plate 1 finished to a predetermined size at a factory or near the site.
It can also be transported to the site and installed.

The waterproof sheet-like material 6, which is attached to the edge of the metal plate l of the rising phase part 4, is attached to the surface of the protrusion B as shown in FIG. are polymerized 11 and bonded with an adhesive, and the upper edge of each waterproof sheet-like material 6 is also bonded to the circumferential surface of the protrusion B with an adhesive.

When the waterproof sheet-like material 6 is constructed on-site in an embodiment in which it is formed of a net-like core material 9 and a waterproof membrane material 10 as shown in FIGS. 7 and 8, the mesh-like core material is 9 is wrapped around the outer periphery of the upper part of the raised whistle part 4 and glued, and a waterproof membrane material 10 is glued on both sides of the net-like core material 9 to form a waterproof sheet-like material 6, and its upper edge is attached to the protrusion B. Glue it to the surrounding surface, or
After the upper edge of the net-like core material 9 is squeezed and adhered to the curve of the protrusion B, the waterproof membrane material 10 is adhered to the surface of the net-like core material 9.

Once the waterproof sheet-like material 6 has been adhered to the circumferential surface of the protrusion B as described above, the metal drain plate 12 is wrapped around the circumferential surface of the protrusion B as shown in FIG. , its upper half is adhered to the protrusion B, its lower half is used as a skirt portion 12a, and this is placed over the upper edge of the waterproof sheet-like material 6. In this case, it is sufficient to simply connect the skirt portion 12a and the waterproof sheet-like material 6 watertightly with an adhesive, but as shown in FIG. The folded portion may be fastened 13 to the skirt portion J2a by rivets or the like. In addition, if the protrusion B is made of metal, the metal draining plate 12 should be adhered to the protrusion B by welding, but if the protrusion B is made of concrete, concrete should be pierced around the entire circumference. metal drain plate 12
You can stop it with caulking. With the above steps, the waterproofing work around the protrusion B on the floor A is completed.

As explained above, according to the present invention, waterproof metal plates arranged in several stages on the floor are bent near the protrusion to form a raised whistle part around the protrusion, and the raised whistle part is formed around the protrusion. A large number of small holes are bored in the upper edge of the part, a flexible waterproof sheet-like material is glued watertightly between the edges containing the small holes, and the waterproof sheet-like material is attached to the surface of the protrusion. Since the waterproof metal plate and the flexible waterproof sheet-like material are bonded watertightly, the waterproof metal plate and the flexible waterproof sheet-like material are not simply joined, but the waterproof sheet-like material is glued to sandwich the waterproof metal plate, and Since the same materials are partially bonded together through the holes, the adhesive strength is high and watertightness can be maintained. By combining a waterproof metal plate and a flexible waterproof sheet-like material, the general parts of the rooftop are made of durable and strong metal waterproofing, and the closing parts of complex-shaped protrusions are covered with a waterproof sheet-like material. This can be easily done by waterproofing with materials. In addition, even if water leaks occur over time in the area where the waterproof sheet-like material has been constructed, it is possible to repair the entire area by simply repairing that area partially.
This eliminates many excellent effects, such as eliminating the need to do the following.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Fig. 1 is a perspective view showing a state in which a rising whistle part is formed around a roof projection by a waterproof metal plate, and Fig. 2 is a perspective view showing a state in which a raised whistle part is formed around a roof projection. A perspective view showing a state in which a sheet-like object is brought into contact with a protrusion; FIG. 3 is a perspective view showing an example in which a #1-shaped core material is adhered to a flute portion and then adhered to a protrusion; Fig. 4 is a perspective view showing a condition in which the edge of a waterproof sheet-like object adhered to a protrusion is covered with a drain plate, and Fig. 5 shows an example of adhesion of a waterproof metal plate and a waterproof sheet-like object. FIG. 6 is a side sectional view, FIG. 7 is a side sectional view showing an example of a real galvanizer included in the package, and FIG. 8 is a side sectional view showing still another embodiment. A...Floor part B...Protrusion 1...
...Metal plate 3...Rising part 4...Rising whistle part 5...Small hole 6...Waterproof sheet-like material 7... ... Waterproof sheet 9 ... Reticulated core material 10 ... Waterproof membrane material 12 ... Draining board Patent applicant Nippon Stainless Co., Ltd. Figure 1 Figure 2 Figure 4

Claims (1)

[Claims] The end of the waterproof metal plate laid on the floor is bent near the protrusion, a raised phase is formed around the protrusion, and a large number of small holes are formed in the upper edge of the raised phase. Along with drilling,
A waterproofing construction method characterized by adhering a flexible waterproof sheet-like material with the edges including the small holes facing down, and then adhering the waterproof sheet-like material to the circumferential surface of the protrusion in a watertight manner.