JPH0241620B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a waterproof layer in a building, which prevents water from entering from the edges and sagging or peeling of the waterproof layer when the waterproof layer is attached to a structure. be.

Conventionally, the ends of the waterproof layer on the rooftop of a rising part of a structure, such as a rooftop parapet, have been treated by pouring strip plates and nails into the parapet concrete, or by pressing them down with bricks or the like.

With this method, one end of the waterproof layer is exposed to the air, which deteriorates the adhesive between the concrete and roofing, causing the end to peel and cause water leakage. Furthermore, even when nails were used, they corroded and had problems with durability.

The present invention was invented in order to solve the above-mentioned drawbacks.One end of the strip roofing is buried and fixed in a proper place on the rising part of a building, and the other end is exposed on the surface of the rising part, and the other end of the strip roofing is The above objective can be achieved by overlapping and adhering the roofing and the end of the roofing laid on the surface of a horizontal part such as a rooftop on the surface of the rising part, and by covering the top of the roofing in the horizontal part and the rising part with asphalt. The present invention provides a method for forming a waterproof layer in a concrete building. Next, an embodiment of the method of the present invention will be explained based on the drawings.

When forming the parapet 1 on the roof 2 of a building by pouring concrete, a strip roofing 5 is folded at the corner 4 of the formwork 3 that forms the outer shape of the parapet 1 at approximately the center of the roofing width, and the folded portion 6 is Formwork 3
Both formworks 3 are separated from each other and assembled with both side parts 7 and 8 at right angles with the bent part 6 in the center,
Divide and fix each section along line 3. Next, waterproof protective paper 9, 10 is pasted only on the opposite side of the roofing side parts 7, 8 from the formwork 3, and one edge of the protective paper 9, 10 that protrudes from the edge of both side parts 7, 8. Attach the part to the formwork 3. After doing this, formwork 3
Pour concrete inside and let it harden. Next, the formwork 3 is dismantled, and both sides 7 and 8 of the roofing 5 are peeled off from the concrete. At this time, since the roofing side parts 7 and 8 are protected by the protective papers 9 and 10, they can be easily peeled off without adhering to the concrete. Next, protective paper 9, 10
Peel it off from the roofing. On the other hand, the folded portion 6 of the roofing 5 is buried in concrete and cannot be easily removed.

In this way, from the corner of the concrete
When constructing a waterproof layer on the roof, leave the roofing both sides 7 and 8 hanging down.
For example, in the case of 8-layer asphalt waterproofing, the order will be described.

First, a primer 11 is applied to the rising concrete surfaces of the concrete 2 on the roof and the parapet 1. Next, after constructing asphalt 12 of an appropriate thickness, roofing 13 is placed on top of the asphalt 12.
Lay down. In this way, the asphalt 12 and the roofing 13 are applied alternately to form an eight-layer waterproof layer, but the order of the roofing 13 and the asphalt 12 at the end of the rising part of the parapet is asphalt 12-1, Roofing 1
3-1 Roofing 7, Asphalt 12-2,
Roofing 13-2, Asphalt 12-3,
The roofing 8, the roofing 12-3, and the asphalt 12-4 are constructed in order, overlapping them alternately.

This order is not necessarily as follows; in short, the roofing 13 constructed on the rooftop and the roofing 7 or 8 fixed at one end to concrete are placed so that their respective ends overlap, and then glued together with an adhesive such as asphalt 12. It is sufficient if it is continuous. Therefore, the roofings 7 and 8 may be one piece. In addition, the roofing 5 was bent and buried in concrete, but as shown in Fig. 3, a recess 14 was cut at an appropriate position such as a rising part of the concrete, one end of the roofing 5 was inserted, and a sealant was applied. 15 etc. may be filled into the recess 14 and fixed.

As described above, according to the method of the present invention, one end of the roofing buried in concrete and the roofing laid on the roof are overlapped and connected, and the upper surfaces of both roofings are covered with asphalt. Since there are no connections exposed to the air, the roofing will not deteriorate or peel off, making it completely waterproof.
No water leakage. Moreover, since the strip roofing is embedded in concrete, it is highly durable, and the ends of the roofing can be treated at the same time as the roof is being waterproofed, so there is no need to reinstall strip plates or apply sealant. It has various features such as the fact that it is not necessary.

[Brief explanation of drawings]

The drawings show an embodiment of the method of the present invention.
The figure is a simplified sectional view during the formation, FIG. 2 is a simplified sectional view after the formation, and FIG. 3 is a simplified sectional view showing another embodiment. 1...parapet, 2...rooftop, 3...formwork,
4... Corner, 5... Band-shaped roofing, 6... Bent part, 7, 8... Roofing both sides, 9, 10
...protective paper, 11 ... primer, 12 ... asphalt, 13 ... roofing, 14 ... recess, 15 ... sealant.

Claims (1)

[Claims] 1 One end of the belt-shaped roofing is buried and fixed in a suitable place on the rising part of the building, and the other end is exposed on the surface of the rising part, and the other end of the roofing belt and the end of the roofing laid on the surface of the horizontal part of the roof etc. 1. A method for forming a waterproof layer in a building, comprising: superimposing and bonding the upper and lower parts on the surface of the rising part, and covering the roofing of the horizontal part and the rising part with asphalt.