JPS6344499Y2 - - Google Patents

Description

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

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.

This invention was made to eliminate the above-mentioned drawbacks of the conventional technology, and it has a laminated structure with a foam board on the bottom layer, an asphalt compound layer on the top surface, and roofing bonded on the top surface. A waterproofing board of a predetermined size having a water-resistant surface is laid and fixed on the roof surface using an adhesive, thereby providing a waterproofing facility that is extremely lightweight, has excellent waterproofing effects, and can be easily waterproofed. It is something to do.

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 on the roof layer of a concrete building, and a waterproof plate 2 is adhesively fixed to the upper surface of this cinder concrete 1. This waterproof board 2 has a foam board 3 arranged at the bottom layer.
When formed to a predetermined thickness, the surface becomes smooth and difficult to bond with other materials, so the surface is roughened using a special 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 formed.
is thinly sliced along both the upper and lower sides, and the flat and smooth surfaces of the uppermost layer 4a and lowermost layer 4b are difficult to blend with other materials, so these parts are cut off and discarded.

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, an asphalt compound layer 5 made of rubberized asphalt, mixed with asphalt, calcium carbonate, cotton, cork, and closed-cell foam powder is welded onto the foam board 3 using an adhesive or the heat of the melted asphalt. Fix it by.

Roofing 6 is adhered to the upper surface of this asphalt compound layer 5.

As shown in FIG. 5, this roofing 6 is made by impregnating a base paper 7 with asphalt, and then applying powder 8 such as stone powder or metal powder to the upper and lower surfaces of the paper using an adhesive.
Immediately after forming the asphalt compound layer 5, this roofing 6 is fixed.
Heat fusion using asphalt heat.

This roofing 6 has waterproofness and weather resistance, protects the foam board 3 asphalt compound layer 5, and allows walking on the upper surface due to the synergistic effect with the asphalt compound layer.

In the waterproof board 2 thus formed, all three layers, the foam board 3, the asphalt compound layer 5, and the roofing 6, are standardized to have the same area as shown in FIG. 6, as shown in FIG. Next, glue the bottom layer of foam board onto cinder concrete 1 using adhesive, and also glue the adjacent surfaces of the adjacent ones using adhesive, and then lay and fix waterproof board 2 on the entire top surface of the cinder concrete. and
Complete the rooftop waterproofing facility.

In addition, the waterproof board 2 may be formed into a standardized shape in which only the foam board 3 at the bottom layer is one size larger, as shown in the modified example of FIG. 4. In this case, as shown in FIG. As shown in the figure, when a foam board 3 is bonded to cinder concrete 1 using an adhesive, and the edges of the foam boards 3 of adjacent waterproof boards are brought together and fixed using an adhesive, the foam board The groove 9 having a width twice as long as the overhanging length of the groove 3 is the seventh groove.
As shown in the figure, the groove 9 is formed above the foam board 3 and between the adjacent waterproof boards 2, and a joint board 10 as shown in FIG. 8, for example, is fixed to this groove 9.
The joint board 10 has a laminated structure including the waterproof board 2 and the foam board 3. That is, the lower layer has an asphalt compound layer 5, and the upper layer has roofing 6.
is fixed with adhesive, its width is equal to the width of the groove 9, and its length is standardized to a predetermined length. This joint plate 10 fills the entire groove 9, but when it is fixed in the groove 9, both sides and the bottom surface are fixed with an adhesive, so the above three layers are formed to have the same area. It is possible to achieve exactly the same effect as in the case where the waterproof board 2 is installed.

Note that the groove 9 may be filled by pouring melted asphalt 11 without using the joint plate 10.

As mentioned above, the structure of the rooftop waterproofing facility of the present invention has a foam board on the bottom layer, an asphalt compound layer on the top surface, and a waterproof board with a laminated structure with roofing bonded to the top surface. Since the foam board 3 on the bottom layer is laid and fixed with adhesive on the top surface, it is lightweight, has a low water absorption rate, has excellent waterproof properties, and also has heat insulation and sound insulation effects. By combining 3 and the asphalt compound layer 5, it is possible to protect the foam board and increase not only the waterproof effect but also the heat insulation effect, vibration proofing, and soundproofing effect. In addition to protecting the asphalt compound layer, the synergistic effect of the two makes it possible to walk on the roof using only the waterproof board.

Furthermore, since it is formed into a standardized waterproof board of a predetermined size, it is lightweight in combination with the foam core material, making it extremely easy to construct waterproofing facilities on site, and reducing the weight of concrete buildings. It has the effect of reducing

[Brief explanation of the drawing]

The figure is for explaining one embodiment of the present invention.
The figure is a perspective view of a foam block, Figure 2 is a perspective view of a foam board, Figure 3 is a perspective view of a waterproof board, Figure 4 is a perspective view of a modification of the waterproof board, and Figure 5 is a perspective view of a waterproof board. A partially enlarged longitudinal side view, Fig. 6 is a perspective view illustrating an example of construction using the waterproof board shown in Fig. 3, and Fig. 7 is a
Figure 8 is a perspective view of a joint board, Figure 9 is a partially enlarged vertical sectional side view of Figure 6, Figures 10 and 11 are FIG. 7 is a partially enlarged longitudinal sectional side view of FIG. 7; 1...Cinder concrete, 2...Waterproof board,
3... Foam board, 4... Foam block, 5... Asphalt compound layer, 6... Roofing, 7... Base paper, 8... Powder, 9... Groove, 10...
...Gout board, 11...Asphalt.

Claims (1)

[Scope of utility model registration request] A closed-cell foam board 3 is placed on the bottom layer, an asphalt compound layer 5 of a predetermined thickness is formed on the top surface of the board with an adhesive, and a roofing 6 is thermally welded to the top surface of this asphalt compound layer 5. The entire structure is formed into a waterproof board 2 of a predetermined size, and the waterproof board 2 is made of cinder concrete 1 on the top layer of the building.
The structure of a rooftop waterproofing facility where the upper surface of the roof is bonded with adhesive, and the adjacent waterproofing panels are also glued together.