JPS6344500Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of a rooftop waterproof layer.

Strict waterproofing construction has traditionally been carried out on the roofs of concrete buildings, but these waterproofing constructions generally employ complex laminated structures to prevent cracks that can cause water leaks.

For example, the structure of a roof-top waterproofing facility that is commonly used has at least six layers, and the first layer is a primer, which is a liquid waterproofing paint and also has adhesive properties, applied to the bottom layer of cinder concrete.
The second layer is roofing or felt, the third layer is hot melted asphalt, the fourth layer is another roofing layer, and the fifth layer is Paste roofing with sand,
The sixth layer, the outermost layer, had a structure in which protective mortar was applied.

However, this kind of waterproof construction with about 6 layers is rare for a multilayer structure, and in reality, the above-mentioned third and fourth layers are repeated many times to create a multilayer structure with 10 or more layers. It is normal to make it possible to do this as well.

Since this type of waterproofing construction requires multiple layers, the entire construction period is quite long, and the weight of the roof itself is extremely large, making the overall structure of the concrete building a so-called headhold, making it an extremely unstable structure. There was a flaw that it became.

In order to solve the above-mentioned drawbacks of the conventional technology, the present invention involves fixing an asphalt compound layer on a closed-cell foam board made of materials such as synthetic resin, and adding another layer on the top surface. A waterproof board of a predetermined size is formed by gluing two pieces of foam board together and a roofing is further glued and fixed on the top surface.This waterproof board is glued and laid on the top surface of the cinder concrete, and the entire top surface is painted silver. Regarding the structure of the waterproof layer, which is coated with a covering material such as , has thermal insulation and soundproofing properties, and furthermore,
Combined with each layer of polymerization, it has an excellent waterproof effect.
In addition, by adopting a simple laminated structure, it significantly reduces the weight of concrete buildings and provides a waterproof layer on the roof.

The details of the present invention will be explained below with reference to the drawings.

In the figure, the reference numeral 1 indicates cinder concrete that is painted as the top layer of a concrete building, and a waterproof layer A as described below is adhesively fixed to the upper surface of this cinder concrete 1. This waterproof layer A is composed of a lower waterproof plate 2 and an upper covering material. The waterproof board 2 has a foam board 3 placed on the bottom layer, but when trying to form the foam board 3 to a predetermined thickness, the surface becomes smooth and it is difficult to bond with other materials, so special The surface is roughened by a method.

That is, as shown in FIG. 1, first, a closed-cell foam block 4 made of synthetic resin such as polyethylene foam, EVA foam, or synthetic rubber, having a predetermined thickness and a predetermined area, is placed above and below the foam block 4. Thinly slice it along both sides, and cut off and discard the flat and smooth parts of the top layer 4a and bottom layer 4b, as these parts do not mix well with other materials.

Thereafter, the obtained intermediate layer is sliced to a predetermined thickness to obtain a closed-cell foam board 3 standardized to a desired size as shown in FIG. Since the upper and lower surfaces of the foam board 3 are roughened, it can be firmly fixed to the upper surface of the cinder concrete 1, creating a layer with excellent waterproof, heat-insulating, and sound-proofing effects.

Next, on the foam board 3, asphalt is made into rubber, and an asphalt compound layer 5 made of a mixture of asphalt, calcium carbonate, cork, dietary fiber, and closed cell foam powder is applied using an adhesive or the heat of the asphalt. and fix by welding.

This asphalt compound layer protects the foam board, which is vulnerable to UV rays, etc., and forms a strong waterproof layer due to asphalt's excellent waterproofing and vibration absorbing properties.

Another foam board 3 is adhesively fixed to the upper surface of this asphalt compound layer 5 to protect the layers below the asphalt compound layer and exhibit excellent heat insulation and waterproof effects. Further, a roofing 6 is adhesively fixed to the upper surface thereof.

As shown in FIG. 4, this roofing 6 is made by impregnating base paper 7 with asphalt, and fixing powder 8 such as stone powder or metal powder to the upper and lower surfaces of the paper using an adhesive. Foam board 3 through
Fixed.

This roofing 6 is waterproof and weatherproof,
It protects the foam boards 3, 3 and the asphalt compound layer 5, and allows walking on the upper surface, and the bonded stone powder and metal powder 8 exerts a joint effect for the covering material, which will be described later.

The waterproof board 2 consisting of four layers is formed as described above, and this waterproof board 2 is standardized to a predetermined size.

This waterproof board 2 is laid and fixed on the top surface of the cinder concrete 1 via adhesive, and a covering material such as silver paint 9 containing aluminum powder etc. is applied over the entire top surface of the laid waterproof board 2 to form five layers. The waterproof layer A consists of: FIG. 5 shows the state in which the test was carried out in this manner.

On the other hand, a protective mortar 10 may be applied to the upper surface of the waterproof board 2 instead of the silver paint 9. This state is shown in FIG. 6, and these silver paints 9,
The covering material of the protective mortar 10 reduces the temperature applied to the waterproof layer of roofing 6 or below, and has the effect of preventing aging of the waterproof layer and waterproofing.

As described above, the structure of the rooftop waterproof layer of the present invention consists of a waterproof board 2 and a covering material applied to the upper surface of the waterproof board. The structure is constructed by gluing foam boards and roofing with powder fixed on the top and bottom surfaces.A large number of waterproof boards formed in this way are laid and fixed on the top of cinder concrete. A covering material such as silver paint or mortar is applied to the upper layer, and the waterproof board has a standardized structure and is extremely lightweight due to the use of two layers of closed cell foam board, making it easy to transport. , the workability of laying is excellent, the construction of the waterproof layer is extremely easy, and together with each layer of polymerization, it is possible to form a waterproof layer with excellent waterproofness, heat insulation, soundproofing, and vibrationproofing properties. Furthermore, by adopting a simple laminated structure, the weight of concrete buildings can be significantly reduced.

[Brief explanation of the drawing]

The figure is for explaining one embodiment of the present invention.
The figure is a perspective view of the foam block, Figure 2 is a perspective view of the foam board, Figure 3 is a perspective view of the waterproof board, Figure 4 is a partially enlarged vertical sectional side view of the waterproof board, and Figures 5 and 6. 7 is a partially enlarged vertical sectional side view of FIG. 5, and FIG. 8 is a partially enlarged longitudinal sectional side view of FIG. 6. 1...Cinder concrete, A...Waterproof layer,
2... Waterproof board, 3... Foam board, 4... Foam block, 5... Asphalt compound layer, 6...
...Roofing, 7...Base paper, 8...Powder, 9...
...Silver paint, 10...Protective mortar.

Claims (1)

[Scope of utility model claims] It consists of a waterproof board 2 laid and fixed on cinder concrete 1 and a covering material applied to its upper surface.The waterproof board 2 has a closed cell foam board 3 on the bottom layer.
An asphalt compound layer 5 of a predetermined thickness is formed on the upper surface of the asphalt compound layer 5 via an adhesive.A closed cell foam board 3 is fixed on the upper surface of this asphalt compound layer 5. The roofing 6 is glued and fixed to form the whole to a predetermined size, this waterproof board 2 is laid and fixed on the cinder concrete 1 with adhesive, and the entire upper surface of the waterproof board is painted with silver paint 9 or Structure of a waterproof layer on a roof covered with a covering material of protective mortar 10.