JPS6080651A - Waterproof sheet joint material for sheet waterproof construction method of building - 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]: 180H 1st shift &illg? 1011)4 This invention relates to a joint material for a waterproof sheet in the sorting waterproofing method for building flat roofs, balconies, etc.

As a waterproofing method for flat roofs, the sheet waterproofing method, which involves applying a waterproof sheet, is widely used.

In addition, a common sheet waterproofing method is to glue the entire surface of the sheet to the llff to be waterproofed, but in order to perform such full adhesion, the base must be finished smooth, and the base must be smooth. If the adhesive is wet, the adhesion will be incomplete, and the process will take longer because the adhesive has to wait until it is sufficiently dry.

As a solution to the above drawbacks, as shown in Figure 61, a plate-shaped joint material (B) is placed on the slab concrete (A) of the flat roof in the figure, and nails (C) are driven in to fix it. For the tarpaulin sheet) is joint material (b)
(There is a floating method of gluing or welding.

The joint material (b) is a vinyl chloride resin side or gold with a vinyl chloride resin layer on the surface by the fluidized dipping method.
41. In the figure (the force is PARABETSU!).

According to this floating method, even if the base is wet after rain, hot air at around 300°C is blown onto the top surface of the joint material, which blows away the moisture and evaporates, leaving it in a dry state. Therefore, the waterproof sheet can be reliably adhered or welded, and therefore, the waterproofing method can be applied immediately even after rain.

By the way, in the floating pasting method mentioned above, when the opposite side edges of adjacent waterproof sheets are overlapped and glued on 4J, the glued part of the waterproof sheet (→) is , becomes stepwise higher than the part where there is no joint material (B), and in the part where the waterproof sheet is added in the length direction, the overlapping layers for the addition are made as shown by the chain line in the same figure. Not only will it become bulky, but
In the overlapping parts due to addition, a gap of 1 m is created, which causes water leakage.

The above-mentioned problem in the joining portion of the waterproof sheet also occurs in a construction method in which opposite side edges of adjacent waterproof sheets are brought into contact with each other on the joint material.

Furthermore, when a weather-resistant resin film layer is provided on the surface of the waterproof sheet, the presence of this weather-resistant and grease-resistant film makes it difficult or impossible to superimpose adhesion or welding of the waterproof sheet.

KO (') This method solves the above-mentioned 1.1 of the 17-gap construction method using 1 piece of invented Hanyoint material, and its purpose is to attach the opposite side edges of adjacent waterproof sheets. Needless to say, it is a joint material that does not overlap even in the 411 lengthwise added portion.

Details of this invention) Ill drawings? ! The following description will be made based on the embodiment shown in Figure 3 and Figure 4.

In the figure, A-1 is a long plate-shaped joint main member, and A-2 is a sub-portion 4a.

Main member arrangement *This sub-member has a small and medium-sized strip portion 2 on the center surface in the width direction of the plate 1, and both sides of the strip portion 2 are 1/1 diagonal, which becomes thinner sequentially through step portions 3, and the side edges The thickness has disappeared.

The main member A-1 has a long linear shape, but the secondary member A-2 has a planar cross shape, and the secondary member A-2 is adjacent to the joining part of the waterproof sheet in the joining direction. It is interposed between two long main members.

Although not shown, a T-shaped planar sub-member is attached to the end of the main member at the peripheral edge of the portion where the waterproof sheet is to be applied.

In each of these members, the dimension 1111 of the stepped portion 3 is equal to the thickness dimension of the waterproof sheet (H).

Each of these members is made of vinyl chloride resin (or a metal material whose surface is coated with a layer of vinyl chloride resin by the fluidized dipping method) like the conventional plate-shaped joint material, but in the joint shrine of the present invention, the inclined surface 4 The surface of the waterproof sheet B may be made of a material such as vinyl chloride resin that is heat-weldable to the waterproof sheet B.

This invention is as described in -1-, and this joint consists of a long plate-shaped main part <A and a sub-member, both of which are located at the center of the plate in the 11] direction. )jF:I+m(Woman, the rain plate is sloped to become liiα thinner through the stepped part, and at least the sloped surface has heat weldability, so on the surface to be waterproofed. The main members A-1 are lined up on the base 5 according to the medium dimensions of the waterproof sheet B, and nails 6 are driven in to fix them.The side edges of the waterproof sheet A-1 are fitted onto the inclined surface 4 of the main member and thermally bonded. Then, cut and remove the main member to the part where the end of the tarpaulin sheet is located, connect the sub member A-'2, fit and adhere the end edge of the tarpaulin sheet to the inclined surface of the sub member, and mark H'FJ. The leading edge of the waterproof sheet to be added to the waterproof sheet is also fitted and adhered to the inclined surface 4a on the opposite side of the secondary member A-2, and the next main member is connected to the secondary member A-2, and the waterproof sheet is attached in the same way. +++u +la is glued on.

In this case, the side edges of the tarpaulin sheet will not overlap with the side edges of the adjacent tarpaulin sheet, and this also means that the leading and trailing edges of the tarpaulin sheet will not overlap with the leading and trailing edges of the tarpaulin sheet being added. They do not overlap, and there is no leakage of water from the gaps that occur when multiple layers overlap, which is the case with conventional waterproof sheets.

In addition, by using this joint material, the waterproof sheet can be used in cases where the surface of the waterproof sheet is provided with a layer of weather-resistant material made of fluororesin, etc., and it is impossible to overlap and bond the opposing edges of both adjacent waterproof sheets. It is extremely suitable for pasting.

Although this joint material is plate-shaped, it has small and medium-sized strips on two sides of the center in the middle direction, and both sides of the joint material are sloped to become thinner sequentially through step portions, and the strip-shaped portion W1
Since the height of the stepped portion of u is equal to the thickness of the tarpaulin sheet, by gluing the side edges of the tarpaulin sheet to the +jiJ inclined surface, a joint material is placed on the bottom surface of the connecting part of the adjacent tarpaulin sheet. exists, but it is slightly higher *It is not too high, and the raised part is also very gently and low-semi-cylindrical, so the effect is that the presence of the O-koji joint is hardly noticeable.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view of a part of a conventional waterproofing method construction section of a building, Fig. 2 is an enlarged vertical cross-sectional view of the same important part, and Fig. 31z1 is a sheet waterproofing method construction of a building using the joint material of the present invention. Enlarged longitudinal section of section 11 "Figure 4 is a part of the same joint material J"I'i! Strabismus is 1. A-1...Main member of joint material, A-2...Subpart 44.1...Plate, 2...Strip shape! ￥B, 3・
...Stepped portion, 4...Slope 1n, B...Tarpaulin sheet patent applicant: Yamade Giken Co., Ltd. Agent: Kama 1) Text (D) Figure 1 Figure 2 r F Figure 3 Figure 4

Claims (3)

[Claims] (1) Consisting of a long plate-shaped main part and a sub-member, both said members have a small and medium band-like part on the middle upper surface in the middle direction, and both sides thereof are sloped to become thinner one after another through step parts, and at least A waterproof sheet joint material for use in a building sheet waterproofing construction method, wherein the inclined surface is heat-weldable. (2) The use of a waterproof sheet joint for a building waterproofing method according to claim 1, wherein the sub-members of the waterproof sheet joint material have a planar cross shape and a planar T-shape. (3) The waterproof sheet joint material for waterproofing construction of buildings according to claim 1, wherein the height of the stepped portions on both sides of the band-like portions of both members is equal to the thickness of the waterproof sheet.