JPH0621509B2 - Exposure waterproof method - Google Patents

Description

TECHNICAL FIELD The present invention relates to an exposed waterproofing method for waterproofing a body to be waterproofed such as a roof of a reinforced concrete building.

[Prior Art] Conventionally, a body to be waterproofed such as a roof of a reinforced concrete structure has been subjected to various waterproofing treatments using various waterproofing materials such as asphalt and mortar.

However, such a waterproof material has a drawback that it is weak against heat, and it is easy to cause surface layer deterioration by repeatedly receiving direct heat from the sun and heating heat from the room that is transmitted through the body to be waterproofed, There is a problem that the waterproof function is lost in a short period of time due to natural erosion due to wind, rain, snow and the like.

Moreover, when the body to be waterproofed is heated by solar heat or heating heat, particularly strong solar heat, the water contained therein vaporizes, and this water is blocked by the waterproof layer laid on the surface of the body to be waterproofed. Since it is not possible to radiate to the outside, it will accumulate between the body to be waterproofed and the waterproof layer and push up the waterproof layer, and as a result, swelling or floating of the waterproof layer, peeling of the joint part, etc. It was easy to occur.

[Problems to be Solved by the Invention] The problem to be solved by the present invention is to prevent deterioration due to heat transfer from the solar heat or the body to be waterproofed, natural erosion due to wind, rain, or snow, and to maintain excellent waterproofness for a long period of time. It is to provide an exposed waterproof method that can be performed.

[Means for Solving the Problem] The above problem is to provide a heat insulating layer on a waterproof skeleton such as a roof of a reinforced concrete structure via an underlayer adjusting material for finishing the surface of the waterproof skeleton to a flat surface. A base material for gluing is laid, a first heat insulating layer is superposed on the base material, and two first and second waterproof layers are provided between them on the first heat insulating layer. The reinforcing cloths for expansion and contraction are sequentially stacked one on top of the other, a second heat insulating layer is stacked on the second waterproof layer, and the heat insulating layer is protected on the second heat insulating layer. It is solved by providing a weatherproof protective layer for

The waterproof layer can be made of rubber asphalt, polymer resin, or the like, and the heat insulating layer is made of a material having excellent heat insulating properties, such as expanded polystyrene resin.

On the other hand, the thicknesses of the waterproof layer and the heat insulating layer are appropriately set depending on their materials, facility conditions and the like.

[Embodiment] Next, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a case where the heat insulating layer is formed of two layers. In this construction method, an underlayer adjusting material 2 for finishing the surface of the waterproof skeleton 1 on a flat surface is placed on the waterproof skeleton 1. A base material 3 for gluing the heat insulating layer is laid and the first
The heat insulating layer 4a is laid, and the first and second two waterproof layers 5a and 5b are sequentially stacked with the reinforcing cloth 6 interposed therebetween, and the second heat insulating layer 5b is provided on the second heat insulating layer 5b. 4b is piled up.

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

The base material 2 and the base material 3 are made of cationic resin and waste asphalt, respectively,
The base material 3 has a preventive property.

The first and second heat insulating layers 4a and 4b are formed of expanded polystyrene foam, but rigid expanded polyurethane foam can be used, and the thickness thereof is about 5 in the case of a normal building. It is preferably about 10 mm.

Further, the waterproof layers 5a, 5b and the protective material 7a are each made of rubber asphalt, and the thickness thereof is about the same as that of the waterproof layers 5a, 5b.
The protective material 7a is formed thinner than that of about 3 to 5 mm.

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

In such an embodiment, the upper and lower two heat insulating layers 4a, 4b prevent the solar heat from being transferred to the waterproof layers 5a, 5b and the body 1 to be waterproofed, and the heat insulating layer 4a below prevents the heat from being transmitted from the body 1 to be waterproofed. Is prevented from being transferred to the waterproof layers 5a and 5b, and deterioration of the waterproof layers 5a and 5b and the waterproof frame 1 due to heat is less likely to occur.

Moreover, as described above, the strong heat of the sun is prevented from being transferred to the body 1 to be waterproofed by the two heat insulating layers 4a and 4b. The waterproof layers 5a, 5b and the heat insulating layers 4a, 4b are unlikely to swell, float, or peel off at the joints.

Of the two heat insulating layers 4a, 4b, the second heat insulating layer 4b located at the upper part and the protective layer 7 on the second heat insulating layer 4b are used to protect the waterproof layers 5a, 5b.
Is covered, and it is not exposed to wind, rain, snow, etc., and is not easily affected by temperature changes, etc., so natural erosion and natural deterioration of the waterproof layer are prevented, and good waterproof function is maintained for a long time. It

[Advantages of the Invention] As described above, according to the present invention, the effects listed below can be expected.

(1) Since the heat insulation layer and the layers below are sequentially stacked on the body to be waterproofed via the base material and the base material, it is possible to lay these layers flatly and firmly on the body to be waterproofed. Moreover, since it is possible to absorb and mitigate vibrations such as an earthquake and prevent the waterproof frame and the heat insulating layer from being displaced or separated from each other, it is also excellent in earthquake resistance.

(2) Since two heat insulating layers are formed on the upper and lower sides, and a waterproof layer is provided between these heat insulating layers, the upper heat insulating layer blocks the solar heat, and the lower heat insulating layer prevents the waterproof frame from being exposed. By shutting off the heat from the above, heat from any direction can be prevented from being transmitted to the waterproof layer, and the deterioration of the waterproof layer due to heat can be reliably prevented. Since it can be efficiently prevented from being transmitted to the waterproof skeleton, not only can the deterioration of the waterproof skeleton due to solar heat be reliably prevented, but the evaporation of water from the waterproof skeleton due to solar heat can be suppressed, Swelling and floating of the waterproof layer and heat insulation layer due to vaporized water,
It is possible to reliably prevent peeling of the joint portion.

(3) Since two waterproof layers are provided between the two heat insulation layers and a reinforcing cloth for expansion and reinforcement is interposed between these waterproof layers, not only the waterproof effect is very large, but also by the cloth. Due to the reinforcing effect, expansion and contraction of the waterproof layer is unlikely to occur, and peeling between the layers due to expansion and contraction or displacement does not occur, resulting in high durability.

[Brief description of drawings]

 FIG. 1 is a sectional view of an embodiment of the present invention. 1 …… Body to be waterproofed, 2 …… Base adjustment material 3 …… Base material, 4a, 4b …… Insulation layer 5a, 5b …… Waterproof layer, 6 …… Reinforcing cloth 7 …… Protective layer

Claims (1)

[Claims] 1. A base material for adhering a heat insulating layer is laid on a body to be waterproofed such as a roof of a reinforced concrete structure via a base conditioning material for finishing the surface of the body to be waterproofed to a flat surface. Then, the first heat insulating layer is superposed on the base material, and the first and second waterproof layers are provided on the first heat insulating layer, and a reinforcing cloth for stretching and reinforcing between them. And a second heat-insulating layer are stacked on the second waterproof layer, and a weather-resistant protective layer for protecting the heat-insulating layer is provided on the second heat-insulating layer. An exposed waterproof method characterized by being provided.