JPS5910661A - 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 construction method for buildings, and more particularly to a rain-proofing construction method that improves waterproof performance. Specifically, we heat-fused a polyvinyl chloride sheet, which is a heat-sealable material with excellent waterproof performance and durability, and Kasagi (hereinafter referred to as PVC-coated Kasagi) coated with the same resin as the sheet. This relates to a rain-proofing construction method that involves bonding with cloth.

The purpose of this method is to fix PVC-coated caps with nails to the structure in the rain cover area where waterproofing defects are likely to occur in waterproofing treatment using sheets, overlap the waterproof sheet over it, and heat the overlapping area. By fusing and completely integrating them, it provides a highly reliable waterproofing method.

Conventionally, in waterproofing construction using Sea HC, in areas where waterproofing defects are likely to occur, the ends of the waterproof sheet are held down using a presser on the rising surface or at the top using a presser.
A commonly used method is to fix the sheet with nails and seal the edges of the sheet using a polyurethane-based, polysulfide-based, silicone-based sealant, or the like.

With such a method, it is impossible to completely prevent water from entering from the edge portion over a long period of time, and the waterproof function is impaired, causing water leakage accidents.

The purpose of the present invention is to solve the above-mentioned problems. A PVC-coated cap that has excellent waterproof performance and durability is fixed to a structure with nails, and a sealing layer is placed between the PVC-coated cap and the structure in advance. This is achieved by filling and sealing with tape or sealant, and then heat-sealing the sheet that has been applied to the flat and/or rising surfaces and the PVC-coated cap to completely integrate them. be.

Therefore, the rain-covering construction method according to the present invention uses a PVC-coated capstone,
This method is characterized by automatically or manually heat-sealing a sheet that has been previously fixed to a structure with a metal fitting and has a flat and/or raised surface stretched thereon.

In this way, the present invention solves the conventional problem of lack of reliability against water intrusion by constructing a rain cover by integrating it by heat fusion instead of using a combination of a presser foot and a sealant. It was successfully solved. Therefore, the construction method according to the present invention is an integrated product in which resins are heat-sealed together and has excellent joints and excellent durability, and is equivalent to a durable sheet. The fact that it is integrated by heat fusion means that it has the same durability as the R sheet, and it has become possible to create a waterproof system that has the same durability as the flat area for the border area. As the waterproof sheet in the present invention, common commercially available polyvinyl chloride products can be used. A specific example is the roof (Ideshi Kosan).
Co., Ltd.).

The capstone to be coated with resin and the method for coating the capstone with resin are not specified. For example, as Kasagi, commonly available commercially available galvanized steel sheets, chrome-plated steel sheets,
Using field-plated steel plates, thermal methods such as fluidized dipping, spraying, paste coating, or electrostatic coating,
By coating with an electrical method such as electrophoresis, it is possible to inexpensively create a heat-sealable cap that suits the initial purpose. On the other hand, however, the method of gluing together molded sheets is very expensive, and the durability of the adhesion between the sheet and the cap is inferior to that of the above-mentioned method of coating with resin.

In other words, if exposed outdoors for a long time (such as on a rooftop),
1. Sufficient durability cannot be obtained if the material is glued to Kasagi.

Hereinafter, specific embodiments of the method of the present invention will be described in more detail based on the accompanying drawings.

FIG. 1 shows a cap coated with the resin of the present invention.

Figure 2 shows a resin-coated cap and a sheet heat-sealed. A galvanized steel plate 2 is coated with a resin 1 of the same quality as the polyvinyl chloride waterproof sheet, and both ends are overlapped with the polyvinyl chloride waterproof sheet 4, and the portion 5 is heated by heat melting. This is what I wore.

Figure 3.4 shows an embodiment using this Kasagi.

In FIG. 3, a sheet 4 with raised uprights 9 is pasted on a flat surface, the ends of the sheet are sealed with a sealant 8, and the cap 3 is fixed thereon with nails 7.

Thereafter, 5 parts and 5 parts of the sheet strip 1o were heat-sealed to the Kasagi 3 and the sheet 4.

In FIG. 4, a seal tape 8 is pasted on the F side of the cap 3, and then the cap 3 is fixed to the frame with nails 7.

Thereafter, the sheet 4 on which the flat surface has been pasted is overlapped with the Kasagi, and the overlapping portion 5 is heat-sealed.

Furthermore, the present invention will be explained in more detail based on Examples.

Example 1 Approximately 4° - (width 5
Waterproofing was carried out on a section measuring 8 m x 8 m in length as follows. First, as shown in Figure 4, attach Ascushion (Seal Tape, manufactured by Sanyo Kogyo Co., Ltd.) to the underside of the eaves where the Kasagi will be installed. Next, aron sheet caps (PVC-coated caps, manufactured by Toagosei Kagaku Kogyo (Tosei)) were installed on top of that, and fixed with all anchors (pegs, manufactured by Sanyo Kogyo Co., Ltd.).Next, a flat surface was stretched. Kita Aron Sheet 555 [polyvinyl chloride sheet, manufactured by Toagosei Kagaku Kogyo Co., Ltd.] was overlapped (approximately 5011 II) as shown in Figure 4, and the overlapped portion was heat-sealed.This construction method is easy to work with. The condition was good, and no abnormalities were observed for one year.

Example 2 ALC board on the existing roof, rising part height 30m.

Approximately 50-[width 5] with a parapet with a width of 20ctn at the top
ffI x length 10m] was waterproofed as follows. First, as shown in FIG. 3, the edges of the Aron sheet 510 (same as in Example 1), which has been stretched flat and upright, are sealed with Butyler C-330 (butyl rubber type, manufactured by Sanyo Kogyo (Tan)). Next, install the Aron Sheet Kasagi [same as in Example 1] and fix it with cut nails [Peg Nails, manufactured by Sanyo Kozuto].Next, the Aron Sheet 510 with a width of 106n
were overlapped as shown in Fig. 3, and heat-sealed at the aron sheet portion and the aron sheet Kasagi portion.

This construction method has good workability, and no abnormalities were observed for one year.

Comparative Example 1 On the same rooftop as Example 2, approximately 20- [width 5 m x length 4 m]
Waterproofing was carried out in the following areas.

As shown in Figure 5, I have pasted the flat and rising parts.

Aron Sea) 510t - Press with presser foot 13 and identify with nail 7. The upper end of the presser foot is
Sealing was performed using 3-20 (polyurethane sealing material, manufactured by Sanyo Kogyo Co., Ltd.).

One year later, the sealing had become severely dented, and there was some peeling at the interface, indicating that there was concern about water intrusion.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of the capacitor according to the present invention, Figure 2 is a cross-sectional view of the Kasagi and waterproof sheet heat-fused together, Figures 3 and 4 are
The figure is a sectional view of a construction example according to the present invention, and FIG. 5 is a sectional view of a comparative construction example. 1: Sheet 2: Kasagi 4: Waterproof sheet 5, 5': Heat-fused part 7: Nail 8.14 Niji ring material 11: Structure 13: Holding hardware

Claims (1)

[Scope of Claims] 1. A waterproofing method using a polyvinyl chloride waterproof sheet, characterized in that the waterproof sheet is bonded to a capacitor coated with the same resin as the sheet by heat fusion (7) to prevent rain. 2. Apply resin using paste coating method, electrostatic coating method or fluidized dipping method.