KR20060101368A - Method of a water proofing steel plate of a roof - Google Patents

Abstract

The present invention relates to a rooftop waterproofing and insulation system of a concrete structure, and more particularly, to form a waterproof layer using a steel plate and to maintain a gap between the iron plate and concrete, and to insulate the gap by injecting a porous urethane into the gap of the predetermined gap. This is a way to get the effect of and waterproof.

Concrete Structure, Steel Sheet, Welding, Porous Urethane, Injection Hole, Insulation, Expansion Joint, Rubber Pad, Welding, Steel Wire

Description

Method of a water proofing steel plate of a roof}

1 is a rooftop waterproof sectional view of a concrete structure installed by the present invention.

Fig. 2 is a detailed view of the part where the vertical wall meets.

Figure 3 is a detailed view of the expansion joint portion

4 is a cross-sectional view showing a support state of an iron plate

5 is a cross-sectional view of the inlet for injecting urethane

Explanation of symbols for the main parts of drawings

1: concrete structure 9: steel wire

2: steel sheet expansion joint 10: urethane inlet

3: porous urethane 11: anchor bolt

4: iron plate 12: welding

5: rubber pad

6: iron plate expansion joint groove

7: epoxy putty

8: epoxy filler

Conventional methods for rooftop waterproofing include a single waterproofing method such as urethane-based coating material, inorganic coating material, cement-based waterproofing material, polymer sheet material, asphalt sheet material, metal sheet material, or a composite that is impregnated with the above materials and a nonwoven fabric. Waterproofing has been a big deal.

In addition, the conventional thermal insulation method was constructed by laying a styrofoam or porous urethane pad on the waterproof layer, covering the vinyl, and then pressing the pressed concrete to form a protective surface by fitting a gradient.

However, this method of waterproofing could not prevent the fracture of the waterproofing layer due to the self-cracking of the concrete structure, the swelling phenomenon occurs due to moisture in the concrete, and also in the form of exposure, there are many problems in durability, and the life was not long. .

In addition, the conventional thermal insulation method described above also does not have the waterproofing function of the pressed concrete itself, so that the thermal insulation material is soaked in water, so that the thermal insulation cannot be performed. The phenomenon of lifting the pressed concrete on the lower side in the upward direction also occurred, which damaged the pressed concrete and failed to perform the function of heat insulation.

Therefore, the present invention is a method for supplementing the disadvantages of the conventional waterproofing, heat insulation method, while forming a waterproof layer with the iron plate and at the same time injecting porous urethane in a liquid state between the iron plate and concrete inflated in the form of a sponge to form a heat insulation layer of the iron plate The rate is not transmitted to the lower concrete structure, and the pressed concrete may be omitted due to the durability of the steel plate, thereby providing a method of improving the function of waterproofing and insulation and reducing the overall construction cost.

In order to achieve the above object, the process of cutting the iron plate in the shape of the rooftop to form a form of covering the rooftop by welding the iron plate and the iron plate is not different from the general iron plate processing method.

In other words, if you recall the welding of the iron plate outside the process of making a ship, it will be quick to understand.

In addition, a craftsman with a proficiency as a ship-builder should weld.

However, considering the area and shape of the rooftop, the shrinkage and expansion rate according to the temperature of the iron plate in mind also to be made in the same manner as shown in Figure 3 expansion joints should be installed at regular intervals and welded with the iron plate.

If the iron plate is installed in this way, by drilling a hole in a certain place of the iron plate to weld the U-shaped inlet, such as the handle of the umbrella of Figure 5 to make the inlet and inject the liquid urethane.

The installation position and spacing of the urethane inlet is preferably determined according to the type of urethane in the field in consideration of the slump of the urethane.

At this time, urethane swells to form porosity and expands. In order to prevent the iron plate from being pushed up, the steel plate should be connected with the steel wire as shown in Fig. 4 so that the steel plate does not lift due to the swelling of urethane. By using the rubber pad as shown in Figure 4, as well as maintaining the gap, the vibration on the roof can be prevented from being transmitted to the concrete.

Steel wire prevents lifting of steel plate due to urethane expansion, and rubber pad is an essential combination to support the weight of steel plate and maintain desired gap.

The steel wire of FIG. 4 may be any shape, such as a rectangular column or a cylinder, as well as a general steel wire, and any material such as a nylon string having a constant tensile strength may be used, and a rubber pad may also have a constant compressive elongation.

There are also occasions when waterproofing against vertical walls is necessary, for example, the part of the parapet connected to the rooftop. The construction of vertical walls can be done in the same way as the above technique when insulation is required. When insulation is not needed, an iron plate is attached with an anchor or a knife block, and an epoxy or coating urethane is injected between the concrete and the iron plate. will be.

When the iron plate is finished, paint the product suitable for rooftop use.

If the construction according to the present invention the following advantages occur.

First, the use of iron plate improves the function of waterproofing by welding skill of ship making, and its durability is also long, so its life is long.

Second, when applied to new building construction, it is possible to control the insulation function by adjusting the thickness of urethane by adjusting the gap between the steel plate and concrete, and to reduce the cost by eliminating the pressed concrete by increasing the strength by adjusting the thickness of the steel plate. can do.

Third, since the porous urethane and rubber pads support the iron plate, it can block various noises or vibrations that may occur on the roof.

Fourth, if applied to the repair work due to leakage of the existing building can also obtain the effect of insulation.

Claims (2)

When waterproofing rooftops of concrete structures After installing the iron plate with a gap between the concrete structure and a certain gap, a method of injecting porous urethane into the gap between the iron plate and the concrete. The method according to claim 1, wherein a gap between the concrete and the steel sheet is used to expand the urethane's swelling force by using a steel wire or a string of tensile force or more, and a rubber pad or a polymer compound of a similar physical property to maintain the gap between the steel sheet and the concrete structure. How to maintain a constant gap gap by preventing the gap gap is narrowed by the weight of the steel plate or by the distance.

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