How to renovate and ventilate your home

Abstract

To provide a housing renovation method and the like capable of preventing condensation in a first chamber with relatively poor insulation performance while taking in fresh outside air to a living room where insulation performance is enhanced by partial insulation renovation.SOLUTION: A renovation method of housing 1 including: a first living room 30 including air supply means 20 for introducing outside air Ao; a first room 31 directly adjacent to the first living room 30 via a first partition 11; and a second room 32 directly or indirectly adjacent to the first living room 30 via a second partition 12, includes: a first step of improving the insulation performance of the wall and / or partition enclosing the first living room 30 and the second room 32; and a second step of renovating the first partition 11 and / or the second partition 12 so that the air tightness of the first partition 11 is higher than the air tightness of the second partition 12.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a method for renovating a house. [Background technology]

[0002] In recent years, various proposals have been made on so-called partial insulation renovations, in which insulation materials are added only to limited living areas of existing houses (for example, the living room, which is the main living space, and the bathroom where undressing is performed). Such partial insulation renovations have the advantage of improving air conditioning efficiency and comfort in the living room, etc., at low cost. For example, the following Patent Document 1 has proposed partial insulation renovations.

[0003] In Patent Document 1, the first living space is made more highly insulated than the adjacent second living space by applying additional insulation to the first living space. Patent Document 1 also provides outside air for ventilation to the second living space in winter to create positive pressure in the space, preventing the air in the first living space, which tends to be humid, from flowing into the cooler second living space and causing condensation. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6496190 Summary of the Invention [Problem to be solved by the invention]

[0005] However, it is desirable for fresh outside air for ventilation to be introduced directly into the main living space.

[0006] The present invention was devised in consideration of the above-mentioned situation, and aims to provide a method of renovating a house that can introduce fresh outside air into the first room, whose insulation performance has been improved through partial insulation renovation, while preventing condensation in the first room, which has relatively poor insulation performance. [Means for solving the problem]

[0007] The first invention of the present application is a method for renovating a house including a first living room equipped with an air supply means for introducing outside air, a first room directly adjacent to the first living room via a first partition, and a second room directly or indirectly adjacent to the first living room via a second partition, the method including a first step of improving the insulation performance of the wall and / or partition surrounding the first living room and the second room from an existing state, and a second step of renovating the first partition and / or the second partition so that the airtightness of the first partition is higher than the airtightness of the second partition.

[0008] The second invention of the present application is a method for renovating a house including a first living room, a first room directly adjacent to the first living room via a first partition, and a second room directly or indirectly adjacent to the first living room via a second partition, and includes a first step of improving the insulation performance of the walls and / or partitions surrounding the first living room and the second room from an existing state, a second step of renovating the first partition and / or the second partition so that the airtightness of the first partition is higher than the airtightness of the second partition, and a third step of providing an air supply means for introducing outside air into the first living room.

[0009] In the first and second aspects of the invention, the house may be provided with an exhaust fan in the second room.

[0010] In the first and second aspects of the invention, the method may further include a fourth step of providing an exhaust fan in the second chamber.

[0011] In the first and second aspects of the present invention, the first step may include a step of adding a thermal insulating material to the wall and / or the partition.

[0012] In the first and second inventions, the first partition and / or the second partition can include a fixture, and the second step can include a step of improving the airtightness of the fixture.

[0013] In the first and second inventions, the wall and / or partition surrounding the first room and the second room may include an opening, and the first step may include a step of increasing the insulation properties of the opening.

[0014] The third invention of the present application is a ventilation method for a residence including a first living room, a first room directly adjacent to the first living room via a first partition, and a second room directly or indirectly adjacent to the first living room via a second partition, the ventilation method for a residence including the steps of: improving the insulation performance of the walls and / or partitions surrounding the first living room and the second room to be more excellent than the existing state; introducing outside air into the first living room; and making the airtightness of the first partition higher than the airtightness of the second partition, and discharging the air from the first living room to the outdoors from the second room side. Effect of the Invention

[0015] By adopting the above-mentioned steps, the home renovation methods of the first and second inventions make it possible to introduce fresh outside air into the first room, whose insulation performance has been improved by partial insulation renovation, while preventing condensation in the first room, which has relatively poor insulation performance.

[0016] In addition, by adopting the above-mentioned steps, the housing ventilation method of the third invention is able to introduce fresh outside air into the first room, which has improved insulation performance, while preventing condensation in the first room, which has relatively poor insulation performance. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a vertical cross-sectional view of a house renovated in accordance with this embodiment. [Diagram 2] FIG. 2 is a floor plan of the house in FIG. 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be understood that the drawings include exaggerated expressions and expressions different from the dimensional ratio of the actual structure in order to help understand the contents of the invention. Furthermore, the same or common elements are given the same reference numerals throughout the embodiments, and duplicated explanations are omitted. Furthermore, the specific configurations shown in the embodiments and drawings are for understanding the contents of the present invention, and the present invention is not limited to the specific configurations shown in the drawings.

[0019] Fig. 1 is a schematic cross-sectional view of a house 1 that has been renovated according to this embodiment, and Fig. 2 shows its floor plan. Fig. 1 corresponds to the cross-sectional view of line II in Fig. 2. As shown in Figs. 1 and 2, the house 1 of this embodiment includes an underfloor space 2 and a plurality of living sections 3 as above-floor spaces. In Figs. 1 and 2, a single-story house is exemplified as the house 1, but it may be a two-story house.

[0020] The underfloor space 2 is a non-residential section surrounded by a foundation 5, a dirt floor 6, and a floor 7. The foundation 5 in this embodiment has a foundation insulation structure in which insulation material 8 is arranged at its rising portion. Also, insulation material (not shown) may be arranged on the underside of the floor 7.

[0021] Furthermore, in this embodiment, an outside air intake 9 is provided at the rising portion of the foundation 5 to introduce fresh outside air Ao into the underfloor space 2. The outside air Ao taken into the underfloor space 2 from the outside air intake 9 is heat exchanged with the geothermal cold via the earthen floor 6. This allows the air in the underfloor space 2 (hereinafter sometimes simply referred to as "underfloor air") to have a higher temperature than the outside air Ao in winter. The earthen floor 6 is finished, for example, with concrete or the like.

[0022] The living area 3 is provided above the underfloor space 2. The living area 3 in this embodiment includes at least a first living room 30, a first room 31, and a second room 32, and further includes a hall 34, a Western-style room 35, and the like.

[0023] The first room 30 is the main living space, and in this embodiment, it is a living room (for example, a living-dining / dining-kitchen area). The first room 30 is provided with an exhaust fan F1 for discharging air from the first room 30 (particularly the area around the kitchen) to the outside.

[0024] The first room 31 is a room where the occupant spends less time than the first room 30. The first room 31 in this embodiment is, for example, a Japanese-style room, but may be another type of room. The first room 31 is directly adjacent to the first room 30 via the first partition 11. The first partition 11 in this embodiment is a partition wall 11w equipped with a fitting 11a that allows passage to and from the first room 30. In addition, the first room 31 is provided with an openable ventilation louver 15, for example, on the outer wall w4. Instead of the ventilation louver 15, a fan, particularly a fan with air supply and exhaust functions, may be provided.

[0025] The second room 32 is, for example, a washroom / bathroom space for undressing, and in this embodiment, it is directly adjacent to the first living room 30 via the second partition 12. In this embodiment, the second room 32 is provided on the opposite side of the first living room 31 in the horizontal direction, but is not limited to this aspect. The second partition 12 in this embodiment is a partition wall 12w equipped with a fitting 12a that allows passage to the first living room 30. In addition, the second room 32 is provided with, for example, an exhaust fan F2 for discharging air and moisture from the second room 32 to the outside. The second room 32 is divided into a washroom and a bathroom by the third partition 13. In other embodiments, the second room 32 may be indirectly adjacent to the first living room 30. In this case, the second room 32 is adjacent to the first living room 30 via a space such as a hall 34 or a corridor (not shown).

[0026] 1, the house 1 of this embodiment is provided with an air supply means 20 for supplying the outside air Ao to the first living room 30. The air supply means 20 is not particularly limited as long as it can take in the outside air Ao into the first living room 30, and various types such as a wall-mounted air supply fan can be used.

[0027] The air supply means 20 of the present embodiment includes, for example, a duct 21, a filter member 22 for removing foreign matter from the outside air Ao, and a suction fan 23.

[0028] The duct 21 is disposed, for example, such that the intake port 21a communicates with the underfloor space 2 and the outlet port 21b communicates with the first living room 30. In a preferred embodiment, the intake port 21a of the duct 21 is fixed at a position separated horizontally by a sufficient distance (for example, 2 m or more) from the outside air intake 9 of the underfloor space 2. This allows the duct 21 to take in the outside air Ao that has entered the underfloor space 2 from the outside air intake 9 after foreign matter such as fine particles and pollen has settled on the dirt floor 6. In addition, in this embodiment, the outlet port 21b of the duct 21 communicates with an air intake port 24 such as a louver provided on the ceiling surface of the first living room 30.

[0029] By operating the suction fan 23, the air supply means 20 as described above can supply underfloor air which has been heat exchanged with the earthen cold energy in the earthen floor 6 and which is relatively warm even in winter, to the first living space 30, which is the main living space of the house 1.

[0030] [First embodiment of the reform method] Next, a method for renovating the house 1 configured as above will be described. The method for renovating the house 1 of this embodiment includes a first step and a second step, as described in detail below. The order in which the first step and the second step are performed is not particularly limited, and either step may be performed first, or they may be performed simultaneously.

[0031] [1st step] First, the first step of the remodeling method of this embodiment will be described. The first step is a step of improving the thermal insulation performance of the walls and / or partitions surrounding the first room 30 and the second room 32 from the existing state.

[0032] The first step of this embodiment is performed, for example, as shown in Fig. 2, by adding new insulation material 26 to the exterior walls w1, w2, first partition 11, and partition w3 surrounding the first room 30 and the second room 32. More specifically, the first step is performed by adding the insulation material 26 to substantially the entire surfaces of the exterior walls w1, w2, first partition 11, and partition w3, excluding openings such as windows. In the first step, the insulation material 26 may also be provided on the ceiling surface and / or floor surface of the first room 30 and the second room 32.

[0033] Furthermore, instead of or in addition to the above embodiment, when the walls and / or partitions surrounding the first room 30 and the second room 32 include openings, the first step may be performed by increasing the thermal insulation of these openings. Specifically, for example, the thermal insulation performance may be increased by replacing the openings with double glazing or double sashes.

[0034] On the other hand, in the first step, no new insulation material 26 is added to the outer wall w4 and / or partition w5 of the first room 31, except for the first partition 11. This reduces the amount of newly added insulation material 26, and allows insulation reform to be achieved at low cost.

[0035] Various materials can be used as the insulating material 26, such as urethane foam, polystyrene foam, or phenol foam. In a preferred embodiment, an insulating decorative material in which a decorative finishing material is previously compounded with a plate-shaped insulating material 26 can be suitably used. These insulating materials 26 may be fixed to existing walls, ceilings, floors, etc., by fasteners such as screws or adhesives. The insulating material 26 is not limited to being plate-shaped, and may be formed, for example, by spraying a cellular material directly onto an existing wall surface, etc.

[0036] The first step described above allows for partial insulation renovation, in which the insulation performance of the walls and / or partitions surrounding the first room 30 and the second room 32 is improved from the existing state. This improves the heating and air conditioning efficiency in the first room 30, which is the main living space, in winter, and the first room 30 and the second room 32, where undressing and the like are performed, can be maintained in a relatively high temperature and humidity environment.

[0037] [Second process] In general, the first room 31, which is not the target of the insulation reform in the first step, is likely to be in a relatively low-temperature environment compared to the first living room 30, which is partially insulated. Therefore, if the humid air in the first living room 30 flows out into the first room 31, it may be cooled in the first room 31 and cause condensation. Therefore, in the reform method of this embodiment, a second step is carried out to renovate the first partition 11 and / or the second partition 12 so that the airtightness of the first partition 11 is higher than that of the second partition 12. Note that in the house 1 of this embodiment, the airtightness of the first partition 11 is the same as that of the second partition 12 before the second step is carried out.

[0038] By carrying out the second step, most of the humid air in the first room 30 passes through the relatively less airtight second partition 12 and is guided to the second room 32, and is exhausted from the second room 32 to the outdoors (for example, by the exhaust fan F2). This prevents the humid air in the first room 30 from entering the first room 31, and thus prevents condensation in the first room 31.

[0039] In this specification, the airtightness between the first living room 30 and the first room 31, and the airtightness between the first living room 30 and the second room 32 are both measured in accordance with JIS-A2201 "Test method for airtightness performance of houses, etc. using a blower" in a state where the parts other than the parts to be measured are airtight. In this case, the first living room 30 is considered to be an indoor space and pressurized, and the first room 31 side and the second room 32 side are considered to be outdoors, respectively, and the airtightness performance (equivalent gap area) is measured. In addition, the airtightness of a fixture can be evaluated by the difference between the airtightness measured by covering the entire wall including the fixture with an airtight sheet and the airtightness measured by removing the airtight sheet from the entire wall including the fixture.

[0040] The second step may be carried out in various ways, but is typically carried out as a step of adjusting the airtightness of the fitting 11a of the first partition 11 and / or the fitting 12a of the second partition 12. There are three specific aspects of the second step as follows: a) Replace or renovate the fixtures 11a of the first partition 11 to improve its airtightness. a) Replacing, renovating, etc. the fixtures 12a of the second partition 12 to reduce their airtightness. C) Implement both A and B above. Either embodiment may be used, but in order to more reliably prevent condensation in the first chamber 31, the above embodiment C is particularly desirable.

[0041] In order to increase the airtightness of the fitting 11a, for example, it is effective to reduce the gap between the fitting 11a and the fitting frame of the partition wall 11w. For this purpose, for example, a new airtight member may be added between the existing fitting 11a and the fitting frame (renovation). Also, the fitting 11a may be replaced with a new one with higher airtightness.

[0042] In order to reduce the airtightness of the fitting 12a, for example, it is effective to increase the gap between the fitting 12a and the fitting frame of the partition wall 12w. For this purpose, for example, a large undercut may be provided in the existing fitting 12a (renovation). In addition, the fitting 12a may be replaced with a new one with a lower airtightness.

[0043] According to the remodeling method of the present embodiment as described above, the first step can provide high insulation for the first room 30 and the second room 32, and can improve the heating and air conditioning efficiency at low cost. In addition, fresh outside air Ao is supplied to the first room 30, so that the main living space can be effectively ventilated. Furthermore, by performing the second step, the humid air in the first room 30 is actively guided to the second room 32 and is prevented from entering the first room 31, and thus condensation in the first room 31 can be prevented.

[0044] In the house 1 of this embodiment, an exhaust fan F2 was installed in advance in the second room 32. If the second room 32 of the house 1 is not installed with an exhaust fan F2, it is preferable that the remodeling method of this embodiment further includes a fourth step of newly installing an exhaust fan F2 in the second room 32.

[0045] [Second embodiment of the reform method] Next, a second embodiment of the reforming method will be described. The second embodiment is a remodeling method for a house 1 that does not have an air supply means 20 that introduces outside air Ao. In this embodiment, the first and second steps (and the fourth step as an optional step) are the same as those in the first embodiment, but this embodiment differs from the first embodiment in that it newly includes a third step of providing an air supply means 20 that introduces outside air Ao into the first living room 30.

[0046] In the third step, various air supply means 20 may be provided. In Figs. 1 and 2, the air supply means 20 capable of supplying underfloor air to the first room 30 is shown, but an air supply fan capable of introducing outside air Ao may be provided on the outer wall w2 facing the first room 30. Furthermore, in order to promote ventilation of the first room 31, a configuration may be adopted in which a portion of the air from the air supply means 20 is supplied to the first room 31.

[0047] Also, in the second embodiment, the order of carrying out the first to fourth steps is not particularly limited.

[0048] [House ventilation methods] According to the above-described remodeling method, in this embodiment, a new ventilation method for ventilating the house 1 can be constructed. That is, the ventilation method for the house 1 includes the first living room 30, the first room 31 directly adjacent to the first living room 30 through the first partition 11, and the second room 32 directly or indirectly adjacent to the first living room 30 through the second partition 12, and includes a step of improving the thermal insulation performance of the wall and / or partition surrounding the first living room 30 and the second room 32 from the existing state, a step of introducing outside air Ao into the first living room 30, and a step of increasing the airtightness of the first partition 11 to be higher than that of the second partition 12, and discharging the air in the first living room 30 to the outside from the second room 32 side.

[0049] This ventilation method can effectively ventilate the main living space because fresh outside air Ao is supplied to the first living room 30. Furthermore, the humid air in the first living room 30 is actively guided to the second room 32 and prevented from entering the first room 31, which can prevent condensation in the first room 31.

[0050] Although a particularly preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the illustrated embodiment and can be modified and carried out in various forms. [Explanation of symbols]

[0051] 1. Housing 8. Insulation 11 First Partition 11a First partition fittings 12 Second Partition 12a Second partition fittings 20 Air supply means 26 Insulation 30 Room 1 31 Room 1 32 Room 2 Ao Outside air F1 Exhaust Fan F2 Exhaust Fan

Claims

1. A method for renovating a house including a first living room equipped with an air supply means for introducing outside air, a first room directly adjacent to the first living room via a first partition, and a second room directly or indirectly adjacent to the first living room via a second partition, A first step of improving the thermal insulation performance of a wall and / or a partition surrounding the first room and the second room to be higher than an existing state; and a second step of renovating the first partition and / or the second partition so that the airtightness of the first partition is higher than the airtightness of the second partition. How to renovate a house.

2. A method for renovating a house including a first living room, a first room directly adjacent to the first living room via a first partition, and a second room directly or indirectly adjacent to the first living room via a second partition, A first step of improving the thermal insulation performance of a wall and / or a partition surrounding the first room and the second room to be higher than an existing state; A second step of renovating the first partition and / or the second partition so that the airtightness of the first partition is higher than the airtightness of the second partition; and a third step of providing an air supply means for introducing outside air into the first living space.

3. The method for renovating a house according to claim 1 or 2, wherein the house is provided with an exhaust fan in the second room.

4. The method for renovating a house according to claim 1 or 2, further comprising a fourth step of providing an exhaust fan in the second room.

5. 5. The method for renovating a house according to claim 1, wherein the first step includes a step of adding insulation to the walls and / or partitions.

6. The first partition and / or the second partition include a fitting, The method for remodeling a house according to claim 1 , wherein the second step includes a step of improving the airtightness of the fixture.

7. The wall and / or partition surrounding the first room and the second room includes an opening, The method for remodeling a house according to claim 1 , wherein the first step includes a step of increasing the thermal insulation of the opening.

8. A ventilation method for a house including a first living room, a first room directly adjacent to the first living room via a first partition, and a second room directly or indirectly adjacent to the first living room via a second partition, A step of improving the thermal insulation performance of a wall and / or a partition surrounding the first room and the second room to be higher than an existing state; Introducing outside air into the first room; and discharging the air in the first room to the outside through the second room by making the airtightness of the first partition higher than the airtightness of the second partition. How to ventilate a home.

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