Floor insulation reinforcement structure and its construction method

Abstract

To provide a heat insulation reinforcement structure above floor and a construction method thereof, for improving a heat bridge formed in a heat insulation structure above a floor of a building structure and enhancing the heat insulation performance.SOLUTION: A heat insulation reinforcement structure on a floor of a housing complex where a wall heat insulation material 3 is provided inside an outer wall 1 and above a floor slab 2, includes: a self-leveling material 4 laid from directly underneath the wall heat insulation material to a top surface of the floor slab 2; heat insulation mortar 5 laid from directly underneath the wall heat insulation material to a part of a top surface of the self-leveling material; and a floor heat insulation material 6 laid on a part of the top surface of the self-leveling material, such that an outer edge surface thereof comes in contact with an inner surface of the heat insulation mortar.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an insulating reinforcement structure for an above-floor structure in a building structure (e.g., an apartment building) and a method for constructing the same. [Background technology]

[0002] Traditionally, thermal insulation has been an important factor for building structures in terms of energy conservation, and evaluations have been conducted based on the "Next Generation Energy Conservation Standards" (1999 Standards). However, in reality, evaluations were conducted only based on the thermal insulation performance of the building's envelope, and no comprehensive evaluation of the entire building structure, including the performance of the equipment, was conducted. As a result, it was difficult to objectively compare the energy conservation performance of the entire building structure, and the evaluation method was reviewed.

[0003] Therefore, the "Revised Energy Conservation Standards" (2013 Standards) came into effect on April 1, 2015. As a result, "insulation reinforcement above floors" of building structures has become mandatory in regions with insulation performance grades 4 and 1-5, which are considered high levels of energy conservation performance. For this reason, there are concerns that measures that are an extension of conventional insulation reinforcement structures and their construction methods could result in poor insulation performance and pressure on processes and labor.

[0004] Conventional insulation supplementary structures above floors have involved laying foamed urethane insulation on the underside of the floor (floor panel) to prevent cold air from coming in from underneath (see, for example, Patent Document 1). More specifically, as shown in Figure 3, floor insulation was laid on the underside of the flooring. Furthermore, wall insulation was provided on the inside of the exterior walls, and a structure was adopted to prevent cold air not only from underneath the floor but also from the exterior walls. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-12767 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the above-mentioned conventional insulation reinforcement structure above the floor, there is a problem with the insulation effect because a self-leveling material is interposed between the insulation material of the wall and the insulation material of the floor. In other words, the part where the insulation material is not continuous becomes a thermal bridge, which reduces the insulation performance, and there is a risk that it will not meet the "Revised Energy Conservation Standards."

[0007] Furthermore, in apartment buildings, the construction procedures for exterior walls, floors, and interior walls are important because each construction worker is assigned to a specific person, and if construction is not done efficiently, construction time will be delayed and unnecessary labor will be wasted.

[0008] Therefore, the first object of the present invention is to provide an insulation reinforcement structure above the floor and a construction method thereof that improves the thermal insulation performance by improving the thermal bridges that occur in the insulation structure above the floor of a building structure. The second object of the present invention is to provide an insulation reinforcement structure above the floor and a construction method thereof that solves the above-mentioned thermal bridge problem without changing or adding to the construction procedure. [Means for solving the problem]

[0009] In order to solve the above problems, the feature of the floor-top insulation reinforcement structure of the present invention is that insulating mortar, rather than floor insulation, is placed between the self-leveling material laid on the floor surface and the wall insulation material installed on the inside of the exterior wall.

[0010] In other words, the present invention is an insulation reinforcement structure on a floor in an architectural structure in which wall insulation is provided inside the exterior wall and above the floor slab, and is characterized by comprising a self-leveling material laid on the upper surface of the floor slab from directly below the wall insulation, insulating mortar laid on part of the upper surface of the self-leveling material from directly below the wall insulation, and floor insulation laid on part of the upper surface of the self-leveling material with its outer end face abutting the inner surface of the insulating mortar.

[0011] The present invention also provides a method for constructing an insulating reinforcement structure on a floor in an architectural structure in which wall insulation is provided inside an exterior wall and above a floor slab, comprising the steps of: laying self-leveling material on the upper surface of the floor slab from directly below the position where the wall insulation will be provided; laying insulating mortar on part of the upper surface of the self-leveling material from directly below the position where the wall insulation will be provided; and laying floor insulation on part of the upper surface of the self-leveling material with its outer end face abutting the inner surface of the insulating mortar. Effect of the Invention

[0012] In the insulation reinforcement structure on the floor according to the present invention, the floor insulation is laid in contact with the inner surface of the insulating mortar laid on a part of the upper surface of the self-leveling material from directly below the position where the wall insulation is to be installed, so that the wall insulation, insulating mortar and floor insulation are continuously constructed, improving the insulation performance without generating a thermal bridge. Furthermore, damage to the floor insulation can be avoided because the local compression from the wall insulation is not applied to the floor insulation.

[0013] In addition, in the construction method of the floor insulation reinforcement structure according to the present invention, the step of laying the self-leveling material is followed immediately by the step of laying the insulation mortar, so that these tasks can be performed by the same construction worker at approximately the same time, eliminating the need for a new construction worker to do them. Furthermore, the step of laying the floor insulation material can be performed approximately at the same time as the step of laying the flooring, eliminating the need for curing during the construction work and finishing work. [Brief description of the drawings]

[0014] [Figure 1] 1 is a schematic diagram of a heat insulating reinforcement structure in one embodiment of the present invention. [Diagram 2] 1 is a schematic diagram of a construction method for an insulating reinforcement structure in one embodiment of the present invention. FIG. [Diagram 3] FIG. 1 is a schematic diagram of a conventional heat insulation reinforcement structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, a heat insulating reinforcement structure and a construction method thereof according to one embodiment of the present invention will be described with reference to Fig. 1 and Fig. 2. Fig. 1 shows a partial end face of a heat insulating reinforcement structure installed in a specific room of an apartment house. Fig. 2 shows the heat insulating reinforcement structure shown in Fig. 1 in the construction order. In order to emphasize the configuration of the invention, parts that are not directly related to the explanation are depicted with dashed lines.

[0016] As shown in Figure 1, the present invention is an insulation reinforcement structure on the floor of an apartment building in which wall insulation 3 is installed inside the exterior wall 1 and above the floor slab 2, and comprises a self-leveling material 4 laid on the top surface of the floor slab 2 from directly below the wall insulation, insulating mortar 5 laid on part of the top surface of the self-leveling material from directly below the wall insulation, and floor insulation 6 laid on part of the top surface of the self-leveling material with its outer end face abutting the inner face of the insulating mortar.

[0017] Next, each member constituting the above-mentioned heat insulating reinforcement structure will be described with reference to FIG.

[0018] The exterior wall 1 may be provided, for example, from the outside with a finishing material such as tiles and ALC (Autoclaved Lightweight Concrete), and the lower portion may be fixed to another exterior wall or beam H with a predetermined angle bar.

[0019] The floor slab 2 may be made of concrete, for example, and its outer edge may be fixed to an exterior wall or beam H.

[0020] The wall insulation material 3 may be made of, for example, urethane foam, and is located inside the exterior wall 1, with its outer end face abutting against the inner surface of the exterior wall.

[0021] The wall base and wall material 7 may comprise, for example, from the outside, a wooden base and a board material such as a gypsum board. The exterior wall 1, floor slab 2, wall insulation material 3, and wall base and wall material 7 are not limited to those described above, and the materials and configurations may be changed as appropriate.

[0022] The self-leveling material 4 may have a fluidity that allows it to cover the upper surface of the floor slab 2. There is no limitation on the shape of the self-leveling material 4, and it may be one that has a step portion to form a lower upper surface and a higher upper surface, for example.

[0023] The heat insulating mortar 5 preferably has a predetermined strength and does not deform even when local compression is applied from the wall insulating material 3. The heat insulating mortar 5 may be in the form of a sheet. There is no limitation on the length and width of the insulating mortar 5.

[0024] The floor insulation material 6 may be a low formaldehyde material having heat insulating properties, for example, "Zetlon (registered trademark)." The floor insulation material 5 may be in the form of a sheet. There is no limitation on the length and width of the floor insulation material 5.

[0025] Next, a method for constructing an on-floor insulation reinforcement structure in one embodiment of the present invention will be described with reference to FIG.

[0026] First, it is assumed that a beam H, an exterior wall 1, and a floor slab 2 have been constructed as shown in FIG. 2(A).

[0027] Next, as shown in Figure 2 (B), the self-leveling material 4 is placed directly below the position where the wall insulation material 3 is to be installed and on the top surface of the floor slab 1, with its outer end face abutting the inner surface of the exterior wall 1 or the angle iron fixing this exterior wall. Furthermore, insulating mortar 5 is continuously laid directly below the position where the wall insulation material 3 is to be installed and on part of the top surface of the self-leveling material 4, with its outer end face abutting the inner surface of the exterior wall 1 or the angle iron fixing this exterior wall. With this procedure, the insulating mortar 5 can be installed almost simultaneously with the laying of the self-leveling material 4, so no additional work is required. The shapes and dimensions of the self-leveling material 4, the insulating mortar 5, and the floor insulation 6 may be adjusted so that the upper surfaces of the self-leveling material 4, the insulating mortar 5, and the floor insulation 6 are flush with each other. For example, the self-leveling material 4 may be provided with a step, and when the insulating mortar 5 is laid on the lower upper surface, the shape and dimensions of the higher upper surface may be set to the same height as the upper surfaces of the insulating mortar 5 and the floor insulation 6.

[0028] 2(C), the wall insulation material 3 may be installed with its lower end face abutting the upper surface of the insulating mortar 5 and its outer end face abutting the inner surface of the exterior wall 1. Furthermore, the wall base and wall material 7 are installed on the upper surface of the insulating mortar 5 with its outer end face abutting or close to the inner surface of the wall insulation material 3. This procedure makes it possible to avoid local deformation of the floor insulation material 6 by the amount that local compression is applied to the insulating mortar 5 from the wall insulation material 3 and the wall base and wall material 7.

[0029] 2(D), floor insulation 6 is installed on the top surface of self-leveling material 4 with its outer end face abutting the inner surface of insulating mortar 5 and its inner side face abutting the side of the step of self-leveling material 4, so that the top surface of self-leveling material 4, the top surface of insulating mortar 5 and the top surface of floor insulation 6 are flush with each other. Furthermore, flooring F may be continuously laid on the top surfaces of self-leveling material 4, insulating mortar 5 and floor insulation 6 with its outer end face abutting or close to the inner surfaces of the wall base and wall material 7. This procedure allows floor insulation 6 to be installed at approximately the same time as laying flooring F, so no additional work is required. In addition, a baseboard B may be inserted between the wall base / wall material 7 and the flooring F.

[0030] Thus, in the insulation reinforcement structure on the floor in one embodiment of the present invention, the floor insulation 6 is laid in contact with the inside surface of the insulating mortar 5 laid on part of the upper surface of the self-leveling material 4 from directly below the position where the wall insulation 3 is to be installed, so that the wall insulation, insulating mortar and floor insulation are continuously configured, improving the insulation performance without creating a thermal bridge. Furthermore, because local compression from the wall insulation 3 is not applied to the floor insulation 5, damage to the floor insulation can be avoided.

[0031] In addition, in the construction method for the insulation reinforcement structure on the floor in one embodiment of the present invention, the process of laying the self-leveling material 4 is followed immediately by the process of laying the insulation mortar 5, so that these tasks can be performed by the same construction worker at approximately the same time, and therefore there is no need for a separate construction worker to perform the tasks. Furthermore, the process of laying the floor insulation material 6 can be performed approximately simultaneously with the process of laying the flooring F, so that curing is not required during the construction work or finishing work. [Industrial Applicability]

[0032] The above-floor insulation reinforcement structure of the present invention can be widely used not only in apartment buildings, but also in individual houses, corporate buildings, and industries related to medical facilities, nursing care facilities, etc. [Explanation of symbols]

[0033] 1. Exterior wall 2. Floor slab 3. Wall insulation 4. Self-leveling materials 5. Insulating mortar 6. Floor insulation

Claims

[Claim 1] A method for constructing a heat insulation reinforcement structure on a floor in a building structure in which a wall insulation material is provided inside an exterior wall and above a floor slab, comprising: Laying a self-leveling material on the upper surface of the floor slab directly below the location where the wall insulation material will be installed; A step of laying insulating mortar on a part of the upper surface of the self-leveling material from directly below the position where the wall insulating material is to be installed; A step of laying a floor insulation material on a part of the upper surface of the self-leveling material with its outer end surface abutting the inner surface of the insulating mortar; and laying flooring on top of each of the self-leveling material, the insulating mortar, and the floor insulating material; The step of laying the self-leveling material and the step of laying the insulating mortar are carried out substantially simultaneously, The step of laying the floor insulation material and the step of laying the flooring are carried out substantially simultaneously. A construction method for an insulation reinforcement structure on a floor, comprising:

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