JPS63165636A - Exposure 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 [Field of Industrial Application] The present invention relates to an exposed waterproofing method for waterproofing a waterproofed frame such as the roof of a reinforced concrete building.

[Prior Art] Conventionally, waterproof structures such as roofs of reinforced concrete buildings have been subjected to various waterproofing treatments using various waterproofing materials such as asphalt and mortar.

However, such waterproofing materials have the disadvantage of being susceptible to heat, and are susceptible to surface layer deterioration due to repeated exposure to direct heat from the sun or heating heat from indoors that is transmitted through the waterproofed structure. Added to this is natural erosion caused by wind, rain, snow, etc., which causes the waterproof function to disappear in a short period of time.

Moreover, when the waterproofing structure is heated by solar heat or heating heat, especially strong solar heat, the moisture contained therein evaporates, but this moisture is absorbed into the waterproof layer laid on the surface of the waterproofing structure. Since it is blocked and cannot escape to the outside, it accumulates between the waterproof structure and the waterproof layer and pushes up the waterproof layer. As a result, the waterproof layer bulges and floats, and the joint part Peeling etc. were likely to occur.

[Problems to be Solved by the Invention] The problem of the present invention is to maintain excellent waterproof properties over a long period of time without causing deterioration due to solar heat or heat transfer from the waterproof structure, or natural erosion due to wind, rain, or snow. The object of the present invention is to provide an exposed waterproofing construction method that can be maintained.

[Means for solving the problem 1 The above problem is to superimpose at least one waterproof layer and a plurality of heat insulating layers sandwiching the waterproof layer on a waterproof structure such as the roof of a reinforced concrete building. solved by.

According to the present invention having such a configuration, the plurality of upper and lower insulation layers prevent solar heat from being transmitted to the waterproof layer and the waterproof structure, and the lower insulation layer prevents heat from the waterproof structure. This prevents heat from being transmitted to the waterproof layer and the waterproof structure, making it difficult for the waterproof layer and the waterproof structure to deteriorate due to heat. Moreover,
Since strong solar heat is not transmitted to the waterproofed structure, the vaporization of water from the waterproofed structure is suppressed, and the vaporized water is less likely to cause the waterproofing layer or insulation layer to swell, float, or peel off at the joint.

In addition, the waterproof layer is covered with a heat insulating layer, which prevents wind, rain,
Since it is not exposed to snow or severe temperature changes, the waterproof layer is reliably prevented from natural erosion and natural deterioration, and its waterproof function is maintained well over a long period of time.

The waterproof layer can be made of rubber asphalt, polymer resin, or the like, and is laminated in a single layer or in multiple layers between the heat insulating layers. In addition, when providing a plurality of waterproof layers, it is desirable to interpose a reinforcing cloth made of a material such as glass fiber between each waterproof layer.

Further, the heat insulating layer is made of a material with excellent heat insulating properties such as expanded polystyrene resin.

The thickness and number of layers of the waterproof layer and the heat insulating layer are appropriately set depending on their materials, facility conditions, etc.

When actually laying the above-mentioned heat-insulating layer and waterproof layer, they are laid directly on the waterproof structure or through an appropriate base preparation material, and a layer with excellent weather resistance is placed on the top surface of the heat-insulating layer and waterproof layer. A suitable protective layer of material is applied.

[Example] Next, a preferred example of the present invention will be described in detail based on the drawings.

Fig. 1 shows a case where the heat insulating layer is two-layered. In this construction method, a base conditioning material 2 is placed on the waterproof building block 1 to make the surface of the waterproof building structure 1 flat. A base material 3 for adhering the heat insulating layer is laid down, a first heat insulating layer 4a is laid thereon, and the first and second two
Two waterproof layers 5a and 5b are laid one on top of the other with a reinforcing cloth 6 in between, and a second heat insulating layer 4b is placed on top of the second waterproof layer 5b.
will be heavily installed.

Subsequently, a protective layer 7 consisting of a protective material 7a and a coating material 7b for protecting the second heat insulating layer 4b is applied on the second heat insulating layer 4b.

The base conditioning material 2 and the base material 3 are made of cationic resin and rubber asphalt, respectively.
The base material 3 is made to maintain waterproofness.

Further, the first and second heat insulating layers 4a and 4b are formed using foamed polystyrene foam, but rigid foamed polyurethane foam can also be used, and the thickness thereof is approximately Approximately 5 to 10 mm is preferable.

Furthermore, the waterproof layers 5a, 5b and the protective material 7a are each made of rubber asphalt, and the thickness of the waterproof layer 5a is
, 5b is approximately 3 to 5 mm thick, and the protective material 7a is thinner than that.

Further, the cloth 4 is made of chemical fiber such as glass fiber, and has a function of expanding and contracting reinforcement of the waterproof layers 5a and 5b.

In such an embodiment, two upper and lower heat insulating layers 4a, 4b
This prevents solar heat from being transmitted to the waterproof layers 5a, 5b and the waterproof structure 1, and also protects the lower heat insulating layer 4.
a prevents the heat from the waterproof structure 1 from being transmitted to the waterproof layers 5a, 5b, and the waterproof layers 5a, 5 due to the heat
b and the waterproof frame 1 are less likely to deteriorate.

Moreover, as described above, the two heat insulating layers 4a and 4b prevent strong solar heat from being transmitted to the waterproof building body 1, so the vaporization of moisture from the waterproof building body 1 is suppressed, and the Waterproof layers 5a, 5b and heat insulation layer 4a,
4b is less likely to bulge, float, or peel off at the joint.

Furthermore, among the two heat insulating layers 4a and 4b, the waterproof layers 5a and 5b are covered by the second heat insulating layer 4b located particularly at the top and the protective layer 7 thereon, and are exposed to wind, rain, snow, etc. Since the waterproof layer is not easily affected by temperature changes, etc., natural erosion and natural deterioration of the waterproof layer are prevented, and its waterproof function is maintained well over a long period of time.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the invention. 1. Waterproofed frame, 4a, 4b, 2 heat insulation layers, 5a,
5b*m waterproof layer.

Claims (1)

[Claims] 1. An exposed waterproofing method characterized by superimposing at least one waterproof layer and a plurality of heat insulating layers sandwiching the waterproof layer on a waterproof frame such as the roof of a reinforced concrete building.