housing

Abstract

The goal is to create a home that makes efficient use of space while incorporating rooms with particularly high insulation compared to other rooms. Furthermore, to ensure that these rooms with superior insulation are effectively utilized for purposes that take advantage of their superior insulation. [Solution] The facility is equipped with multiple rooms 3, 4, 6, 7, and 10 that can be used as living rooms or non-living rooms. Among the multiple rooms, the rooms used as non-living rooms include a low-ceiling space 10 enclosed by a floor 11, a ceiling 5a, and four walls 13 and 14, with a ceiling height set to 0.8m to 1.4m. The floor, ceiling, and four walls are formed in a hollow manner and have an internal hollow space, which is filled with a first insulation material 15. The first insulation material has higher thermal insulation performance than the second insulation material used in the other rooms of the multiple rooms, excluding the low-ceiling space.

Description

Technical Field

[0001] The present invention relates to a residence.

Background Art

[0002] Conventionally, for the purpose of installing, for example, bedrock bath facilities, there has been a need to arrange a room with particularly higher heat insulation performance than other rooms in a building. In the technique described in Patent Document 1, a floor heating system is installed in a room with high airtightness and high heat insulation performance, and a bed and a chair each composed of a flat bedrock or the like obtained by hardening tourmaline ore or the like with mortar containing silica sand or the like are installed thereon, so that a bedrock bath can be performed in the room.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] By the way, the conventional room with particularly higher heat insulation performance than other rooms and the bedrock bath facilities cannot necessarily be said to be used every day without fail. In addition, the room with particularly higher heat insulation performance than other rooms is set to have the same floor area and the same ceiling height as the other rooms. Therefore, even if there is a demand to introduce a room with particularly higher heat insulation performance than other rooms into a residence, it has been difficult because the space in the residence cannot be effectively utilized.

[0005] The present invention has been made in view of the above circumstances, and an object thereof is to introduce a room with particularly higher heat insulation performance than other rooms into a residence while enabling effective utilization of the space in the residence. Furthermore, another object of the present invention is to enable the room with particularly higher heat insulation performance than other rooms introduced into the residence to be effectively used in applications that take advantage of the particularly high heat insulation performance compared with the other rooms. [Means for solving the problem]

[0006] The invention described in claim 1 relates to a dwelling 1 having a plurality of rooms 3, 4, 6, 7, 10 used as living rooms or non-living rooms, as shown in Figures 1 to 7, Of the aforementioned rooms 3, 4, 6, 7, and 10, the rooms used as non-habitable rooms include a low-ceiling space 10 enclosed by a floor 11, a ceiling 5a, and four walls 13 and 14, with a ceiling height set to 0.8m to 1.4m. The floor 11, the ceiling 5a, and the four walls 13, 14 are formed in a hollow manner and have an internal hollow section. The aforementioned internal hollow portion is filled with the first insulating material 15. The first insulation material 15 is characterized by having higher thermal insulation performance than the second insulation material used in the other rooms 3, 4, 6, and 7 of the plurality of rooms, excluding the low-ceiling space 10.

[0007] According to the invention described in claim 1, the floor 11, ceiling 5a, and four walls 13, 14 of the low-ceiling space 10 are formed in a hollow shape and have an internal hollow section, and the internal hollow section is filled with a first insulation material 15. Since the first insulation material 15 has higher thermal insulation performance than the second insulation material used in the other rooms 3, 4, 6, and 7 of the multiple rooms excluding the low-ceiling space 10, the low-ceiling space 10 becomes a room with particularly high thermal insulation compared to the other rooms 3, 4, 6, and 7. Furthermore, since the ceiling height of this low-ceiling space 10 is set to 0.8m to 1.4m, it does not take up as much space in the house 1 as it would if the ceiling height were set to a normal level.Therefore, it is possible to introduce the low-ceiling space 10 into the house 1 as a room with particularly high thermal insulation compared to the other rooms 3, 4, 6, and 7, while making effective use of the space in the house 1.

[0008] The invention described in claim 2 is, for example, as shown in Figures 1 and 3, in the house described in claim 1, The aforementioned low-ceiling space 30 is a sauna room (low-ceiling sauna room 30), The low-ceiling space 30 is located adjacent to the bathroom 31 and washroom 32, which are set to a normal ceiling height higher than the low-ceiling space 30. The low-ceiling space 30 is characterized by having entrances 34 and 35 provided between at least one of the rooms, the bathroom 31 and the washroom 32.

[0009] According to the invention described in claim 2, since the low-ceiling space 30, with a ceiling height set to 0.8m to 1.4m, is used as a sauna room, the heat from the sauna tends to accumulate more easily compared to when a room with a normal ceiling height is used as a sauna room. In other words, the sauna room 30 can be heated efficiently while reducing the cost and energy required for the sauna's heat source. Therefore, the sauna room 30 in the low-ceiling space, which is a room with particularly high insulation properties compared to other rooms, can be used for purposes that take advantage of its particularly high insulation properties. Furthermore, the low-ceiling space 30, which is the sauna room, is located adjacent to the bathroom 31 and washroom 32, which have a normal ceiling height higher than the low-ceiling space 30. The low-ceiling space 30 has entrances 34 and 35 between it and at least one of the bathroom 31 and washroom 32, so it is possible to move back and forth between the sauna room 30 and the bathroom 31, and between the sauna room 30 and washroom 32. Moreover, if there are entrances 34 and 35 between it and both the bathroom 31 and washroom 32, it is possible to move around the sauna room 30, bathroom 31, and washroom 32. This improves access to the sauna room 30 from the adjacent bathroom 31 and washroom 32, making it easier to enjoy the sauna.

[0010] The invention described in claim 3 is, for example, as shown in Figures 1 and 3, in the housing described in claim 2, The washroom 32 is located adjacent to the terrace 33, and an outdoor entrance 37 is formed between the washroom 32 and the terrace 33.

[0011] According to the invention described in claim 3, the washroom 32 is located adjacent to the terrace 33, and an outdoor entrance 37 is formed between the washroom 32 and the terrace 33, so that it is possible to move between the sauna room 30 and the terrace 33, and between the bathroom 31 and the terrace 33 via the washroom 32. This makes it possible to effectively lower the body temperature that has risen in the sauna room 30 or the bathroom 31 by taking an outdoor bath on the terrace 33.

[0012] The invention described in claim 4 is, for example, as shown in Figures 1, 4 to 6, in the house described in claim 1, The aforementioned low-ceiling space 45 (second low-ceiling storage room 45) is located on the north side of the house. At least a portion of the floor in the low-ceiling space 45 is a dirt floor 45a. The low-ceiling space 45 is characterized in that the wall located on the north side of the four walls is an exterior wall 45b, and a small window 45c is provided in the exterior wall 45b.

[0013] According to the invention described in claim 4, since the low ceiling space 45 is located on the north side of the house, the low ceiling space 45 can be kept at a relatively low temperature during the summer. Furthermore, at least a portion of the floor in the low ceiling space 45 is a dirt floor 45a, and the wall on the north side of the four walls in the low ceiling space 45 is an exterior wall 45b, and a small window 45c is provided in this exterior wall 45b. Therefore, during the time of day when the outside temperature is low in the summer, relatively cool air is drawn into the low ceiling space 45 from the small window 45c on the north side, lowering the temperature of the low ceiling space 45, and the dirt floor 45a further synergistically helps to maintain a low temperature in the low ceiling space 45.

[0014] The invention described in claim 5 is, for example, as shown in Figures 1, 4 to 6, in the housing described in claim 4, The first floor includes the low-ceiling space 45 and the adjacent living room 46 (47) located on the same floor as the low-ceiling space 45 and accessible horizontally. A second layer is located above the aforementioned first layer and directly below the roof 55, It includes a staircase 50 connecting the first layer and the second layer, The roof 55 is characterized in that a skylight 55a is provided on the northern roof surface, connecting the second layer with the outdoors.

[0015] According to the invention described in claim 5, the house comprises a first layer including a low-ceiling space 45 and a living room 46 (47), a second layer located above the first layer and directly below the roof 55, and a staircase 50 connecting the first and second layers. A skylight 55a is provided on the north side of the roof 55, connecting the second layer to the outdoors. This allows air taken into the low-ceiling space 45 to flow into the living room 46 (47), then rise to the second layer via the staircase 50, and finally exit through the skylight 55a, creating an airflow. This effectively dissipates hot air from inside the house, making it easier to create a comfortable living environment even in the summer.

[0016] The invention described in claim 6 is, for example, as shown in Figure 1, in the house 1 described in claim 1, The low-ceiling space 10 is equipped with an air conditioning system installed outside of it. A duct connecting the low ceiling space 10 to the outside of the low ceiling space 10 is routed through the building structures F1 and F2, and the air conditioning unit and the duct are connected. The air intake port of the duct is characterized by being provided facing the low ceiling space 10.

[0017] According to the invention described in claim 6, the temperature of the low-ceiling space 10 can be adjusted by an air conditioning system installed outside the low-ceiling space 10. This makes it easier to effectively utilize the low-ceiling space 10, which is a room with particularly high insulation properties compared to other rooms, by raising or lowering its temperature, for example, using it as a food storage room, a sauna room, or a server room, taking advantage of its particularly high insulation properties compared to other rooms.

[0018] The invention according to claim 7 is, for example, as shown in Fig. 1 and Fig. 7, in the house according to claim 1, comprising an air conditioner 61 installed inside the low-ceiling space 60, a duct 61a connecting the low-ceiling space 60 and the outside of the low-ceiling space 60 is arranged in the building frames F1 and F2, and the air conditioner 61 and the duct 61a are connected, wherein an air supply port 61b of the duct 61a is provided facing the living room.

[0019] According to the invention of claim 7, the temperature of the living room where the air supply port 61b of the duct 61a is provided facing can be adjusted by the air conditioner 61 installed inside the low-ceiling space 60. That is, since the duct 61a can be arranged centering on the low-ceiling space 60, efficient piping of the duct 61a becomes possible, and air conditioning of the entire house is facilitated. In addition, since the operating noise and heat generation of the air conditioner 61 installed inside the low-ceiling space 60 are less likely to leak to the outside, it becomes easy to form a comfortable living environment.

Effects of the Invention

[0020] According to the present invention, it is possible to introduce a room with particularly higher heat insulation than other rooms into a house while enabling effective use of the space in the house. Furthermore, the room with particularly higher heat insulation than other rooms introduced into the house can be effectively utilized in applications that take advantage of its particularly higher heat insulation than other rooms.

Brief Description of the Drawings

[0021] [Figure 1] It is a longitudinal cross-sectional view showing a house into which a low-ceiling space with particularly high heat insulation is introduced. [Figure 2] It is a plan cross-sectional view showing a house into which a low-ceiling cold storage room is introduced as a room with particularly high heat insulation. [Figure 3] It is a plan cross-sectional view showing a house into which a low-ceiling sauna room is introduced as a room with particularly high heat insulation. [Figure 4]This is a cross-sectional view of the first floor of a house that features a low-ceiling storage room, which is particularly well-insulated. [Figure 5] This is a cross-sectional view of the 1.5th floor of a house where a low-ceiling storage room has been installed as a particularly well-insulated room. [Figure 6] Figures 4 and 5 show longitudinal cross-sections of the house. [Figure 7] This is a vertical cross-sectional view showing a house in which a low-ceiling equipment room has been installed, which is particularly well-insulated. [Modes for carrying out the invention]

[0022] Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below are subject to various technically preferred limitations for carrying out the present invention, but the technical scope of the present invention is not limited to the embodiments and illustrated examples below. Note that the directions in the embodiments and illustrated examples below are set solely for the convenience of explanation.

[0023] In Figure 1, reference numeral 1 indicates a house. This house 1 is constructed using a panel construction method in which building components such as walls, floors, and roofs are pre-fabricated into panels in a factory, and these panels (hereinafter referred to as building wood panels) are assembled at the construction site. However, it is not limited to this, and houses constructed using conventional post-and-beam construction methods, wall-type construction methods, wooden structures, steel structures, reinforced concrete structures, etc., may also be used.

[0024] Furthermore, a wooden building panel is constructed by assembling vertical and horizontal frame members Fm in a rectangular shape, and then assembling auxiliary cross members (not shown) vertically and horizontally inside the rectangular frame to form a frame body F. A surface material B, such as plywood, is attached to one or both sides of this frame body F, resulting in a hollow internal structure. In addition, conventional insulation materials (not shown), such as glass wool, rock wool, or foamed plastic insulation, are appropriately selected and installed in the hollow internal portion. The conventional insulation materials mentioned here correspond to the second layer of insulation.

[0025] To explain in more detail, the house 1 of this embodiment is constructed as a multi-story building as shown in Figure 1, and has a first floor and a second floor. House 1 comprises living rooms and non-living rooms. Living rooms refer to rooms that are continuously used by the occupants for purposes such as living, working, and recreation, and include, for example, living rooms, dining rooms, kitchens, bedrooms, children's rooms, studies, and offices. Non-living rooms refer to rooms that are not living rooms, and include, for example, entrances, toilets, bathrooms, washrooms, dressing rooms, closets, storage rooms, and corridors. The low-ceiling spaces described in this embodiment are also, of course, included in non-living rooms.

[0026] The first floor of house 1 consists of a first-floor slab 2a built on the foundation and first-floor walls 2b erected on the first-floor slab 2a, and includes several rooms 3 and 4. The second floor of house 1 consists of a second floor 5a constructed on the first floor wall 2b and a second floor wall 5b erected on the second floor 5a, and comprises several rooms 6 and 7. The multiple rooms 3 and 4 on the first floor and the multiple rooms 6 and 7 on the second floor may be habitable rooms or non-habitable rooms.

[0027] The first-floor slab 2a and the second-floor slab 5a are constructed of building wood panels P, with facing material B attached to the upper surface of the frame F, and standard insulation material installed in the internal hollow space. The first-floor wall 2b and the second-floor wall 5b are constructed of building wood panels P, with facing material B attached to both sides of the frame F, and standard insulation material installed in the internal hollow space. Furthermore, a staircase 8 is provided between the first and second floors of the house 1, allowing movement between the first and second floors. The staircase 8 has a landing 8a in the middle.

[0028] For the sake of explanation, one of the multiple rooms 3 and 4 located on the first floor will be referred to as Room 1 3, and the other as Room 2 4. Also, one of the multiple rooms 6 and 7 located on the second floor will be referred to as Room 3 6, and the other as Room 4 7. The second room 4 on the first floor and the fourth room 7 on the second floor are adjacent to each other vertically via the second-floor slab 5a. Furthermore, a low-ceiling space, known as a low-ceiling room 10, is provided between the first room 3 on the first floor and the third room 6 on the second floor.

[0029] The low-ceiling room 10 is a low-ceiling space with a ceiling height of 0.8m to 1.4m, comprising an intermediate floor 11 located above a portion of the first-floor floor 2a, a second-floor floor 5a, and four walls 12 and 13. In other words, it is a non-habitable low-ceiling space enclosed by an intermediate floor 11 located above a portion of the first-floor floor 2a, a second-floor floor 5a, and four walls 12 and 13, with a ceiling height of 0.8m to 1.4m. Similar to the second room 4, the second-floor floor 5a is assumed to constitute part of the ceiling.

[0030] The intermediate floor 11 is supported by the first-floor wall 2b by the fact that its side ends rest on support members 11a fixed to the upper end of the first room 3 on the wall surface of the first-floor wall 2b. An adjustment member, which is thinner than the thickness of the intermediate floor 11, is attached to the side end of the intermediate floor 11, so that a recess is formed at the side end of the intermediate floor 11, and the support member 11a fits into this recess.

[0031] In this embodiment, a low-ceiling space (low-ceiling room 10 in this embodiment) is formed between the second-floor 5a and the intermediate floor 11. However, the height of the intermediate floor 11 may be set lower, and a low-ceiling space may be formed between the intermediate floor 11 and the first-floor 2a. In other words, the height of the intermediate floor 11, which is provided above a part of the floor of a specific floor (the first floor in this embodiment, but any floor may be used), determines whether the low-ceiling space is provided on the floor side or the ceiling side of that specific floor. Whether the intermediate floor 11 is positioned closer to the floor side of the specific floor or closer to the ceiling side of that specific floor, the ceiling height of the formed low-ceiling space is set in the range of 0.8m to 1.4m.

[0032] In this embodiment, the ceiling height of the low-ceiling room 10 can be appropriately changed within the range of 0.8m to 1.4m. This ceiling height range of 0.8m to 1.4m is the minimum height required to allow a person to enter the low-ceiling room 10 and perform some work, and by keeping the ceiling height to the absolute minimum, it is possible to minimize the impact on adjacent houses, etc., such as reduced sunlight, caused by the increased height of the house 1.

[0033] The intermediate floor 11, the second floor 5a, and the internal hollow spaces of the four walls 13 and 14 surrounding the low-ceiling room 10 are filled with vacuum insulation material 15, which has a higher thermal insulation effect than the conventional insulation material mentioned above. Therefore, the low-ceiling room 10 functions as a space with particularly high thermal insulation compared to the other rooms 3, 4, 6, and 7 in the house 1. The vacuum insulation material 15 mentioned here corresponds to the first insulation material 15.

[0034] Vacuum insulation material 15 is an insulation material that utilizes vacuum technology to enhance insulation performance by creating a vacuum around the insulation material, thereby bringing heat conduction by gas as close to zero as possible. Compared to the conventional insulation material described above, it is significantly thinner. More specifically, it is a plate-shaped insulation material in which an insulating core material such as glass fiber called glass wool is placed in an outer bag made of a composite film that provides excellent gas barrier properties, and the inside is vacuumed. Such plate-shaped vacuum insulation material is filled into the internal hollow spaces of the intermediate floor 11, second floor 5a, and the four walls 13, 14. In other words, the internal hollow spaces are filled with it. As a result, the intermediate floor 11, second floor 5a, and the four walls 13, 14 filled with vacuum insulation material 15 have significantly higher insulation performance compared to other building wood panels P that are not filled with vacuum insulation material 15. For example, the thermal conductivity of vacuum insulation material 15 is 0.002 W / m·K, while the thermal conductivity of glass wool is 0.044 W / m·K, and even rigid polyurethane foam, which is said to have relatively high insulation properties, has a thermal conductivity of 0.024 W / m·K. In this embodiment, the vacuum insulation material 15 functions as a first insulation material with particularly high insulation performance because multiple plate-shaped pieces are filled into the internal hollow space as described above. However, it is not limited to this, and it may also be a material that can fill the internal hollow space on its own.

[0035] The wooden building panels P that make up the four walls 13 and 14 have facing material B attached to both sides of the frame F, so the vacuum insulation material 15 can be held in place by the facing material B on both sides. Similarly, the second floor 5a that makes up the ceiling of the intermediate floor 11 and the low ceiling room 10 also has facing material B attached to both sides (top and bottom) of the frame F. Therefore, the vacuum insulation material 15 can also be held in place in the case of the intermediate floor 11 and the second floor 5a. The second-floor floor 5a that constitutes the low-ceiling room 10 is a ceiling structure, and the facing material B attached to the lower surface of the frame F functions as the ceiling material.

[0036] The low-ceiling room 10 has an entrance / exit 13a, which is an opening formed in the wall 13 adjacent to the landing 8a of the staircase 8. In other words, one can enter and exit the low-ceiling room 10 from the landing 8a. The entrance / exit 13a is opened and closed by an opening / closing door 16.

[0037] The opening and closing door 16 comprises a door body facing the landing 8a and an insulating section into which a vacuum insulation material 15 can be loaded. In other words, the opening and closing door 16 is a so-called insulated door. When the entrance 13a is closed by the opening and closing door 16, the door body is in close contact with the surface of the wall 13 on the landing 8a side, and the insulating section is aligned with the vacuum insulation material 15 of the wall 13, thereby performing the function of forming an insulating layer of the low-ceiling room 10 together with the vacuum insulation material 15 of the wall 13.

[0038] As described above, the low-ceiling room 10 has vacuum insulation material filled in the intermediate floor 11 located below, the second floor 5a located above, and the internal hollow spaces of the four walls 13 and 14, resulting in significantly high insulation performance in all directions of the low-ceiling room 10. As a result, the low-ceiling room 10 can maintain its internal temperature for a long period of time, much like a thermos or cooler box.

[0039] Furthermore, the functionality of the low-ceiling room 10 may be enhanced by providing an air supply vent for the whole-house air conditioning system in the intermediate floor 11, the second-floor floor 5a, or in one of the four walls 13, 14. In other words, although not shown in the diagram, a duct extending from the main unit of the whole-house air conditioning system is routed from the main unit toward the low-ceiling room 10, and the air supply vent of the duct is provided facing the low-ceiling room 10. If the low-ceiling room 10 is to be kept warm, the air supplied from the whole-house air conditioning system will be continuously warm air, and if the low-ceiling room 10 is to be kept cold, the air supplied from the whole-house air conditioning system will be continuously cold air. It is desirable that the air supply vent of the duct be equipped with a cover so that it can be opened and closed. Since condensation may occur when such temperature fluctuations occur, various types of sheets (such as breathable waterproof sheets, moisture-proof sheets, and condensation-preventing sheets) are attached to the surface or interior of the intermediate floor 11, the surface or interior of the second-floor floor 5a, and the surface or interior of the four walls 13 and 14 that constitute the low-ceiling room 10 to prevent condensation.

[0040] The low-ceiling room 10 of this embodiment can be used, for example, from the landing 8a of the staircase 8, and because it has good heat and cold retention properties, it can be used as a food storage room that can be accessed from, for example, the second floor. In other words, the low-ceiling space, the low-ceiling room 10 of this embodiment, functions as a low-ceiling storage room.

[0041] This embodiment provides the following excellent effects. In other words, the floor 11, ceiling 5a, and four walls 13 and 14 of the low-ceiling space 10 are formed in a hollow shape, having an internal hollow section, and the internal hollow section is filled with a first insulation material 15. Since the first insulation material 15 has higher thermal insulation performance than the second insulation material used in the other rooms 3, 4, 6, and 7 of the multiple rooms excluding the low-ceiling space 10, the low-ceiling space 10 becomes a room with particularly high thermal insulation compared to the other rooms 3, 4, 6, and 7. Furthermore, since the ceiling height of this low-ceiling space 10 is set to 0.8m to 1.4m, it does not take up as much space within the house 1 as it would if the ceiling height were set to normal. Therefore, it is possible to introduce the low-ceiling space 10 into the house 1 as a room with particularly high thermal insulation compared to the other rooms 3, 4, 6, and 7, while making effective use of the space within the house 1. In addition, it is possible to improve sound insulation between the room located directly above and the room located directly below the low-ceiling space 10.

[0042] Furthermore, the temperature of the low-ceiling space 10 can be adjusted by an air conditioning system installed outside the low-ceiling space 10. This allows the temperature of the low-ceiling space 10, which is particularly well-insulated compared to other rooms, to be raised or lowered, making it easier to effectively utilize the low-ceiling space 10 for purposes that take advantage of its superior insulation, such as using it as a food storage room, a sauna room, or a server room.

[0043] Furthermore, in recent years, there has been a growing demand for the realization of a decarbonized society through the promotion of carbon neutrality, which aims to reduce carbon dioxide emissions to virtually zero, and for the achievement of the Sustainable Development Goals (SDGs). In the construction industry, efforts are also being made to use wood in buildings, which reduces carbon dioxide emissions. Since the house 1 of this embodiment is constructed of wooden building panels P, it can contribute to the realization of a decarbonized society through the promotion of carbon neutrality and to the achievement of the SDGs. Moreover, if a low-ceiling room 10, which is a low-ceiling space with particularly high insulation properties, can be introduced into the house 1, it can contribute even more to the realization of a decarbonized society through the promotion of carbon neutrality and to the achievement of the SDGs.

[0044] [Variation] The embodiments to which the present invention can be applied are not limited to those described above, and can be modified as appropriate without departing from the spirit of the invention. Modifications are described below. The following modifications may be combined as much as possible. Furthermore, in each of the following modifications, elements common to the above-described embodiments are denoted by the same reference numerals, and their descriptions are omitted or simplified.

[0045] [Variation 1] Figure 2 is a plan cross-sectional view showing a house in which a low-ceiling cold storage room 20 has been introduced as a room with particularly high insulation properties. The low-ceiling cold storage room 20 comprises a first cold storage room 21, a second cold storage room 22, and a third cold storage room 23, each with different cold storage temperatures. The low-ceiling cold storage room 20 is a non-habitable room in a low-ceiling space with a ceiling height set to 0.8m to 1.4m.

[0046] These three cold storage rooms, the first 21, the second 22, and the third 23, are arranged in a straight line, with the first 21 having the highest temperature setting. The third 23 has the lowest temperature setting, and the second 22's temperature is set to be approximately midway between the temperatures of the first 21 and the third 23.

[0047] In this modified example, the first cold storage room 21 is set to a temperature suitable for use as a so-called cool, dark place. More specifically, it is set to 15°C or lower during periods other than summer, and is a place where direct sunlight can be avoided. The second cold storage compartment 22 is set to a temperature suitable for use as a refrigerator. More specifically, it is set to approximately 2°C to 5°C. However, the temperature is not limited to this range; any temperature lower than that of the first cold storage compartment 21 is acceptable. The third cold storage compartment 23 is set to a temperature suitable for use as a freezer. More specifically, it is set to -22°C to -16°C. However, the temperature is not limited to this range; any temperature lower than that of the second cold storage compartment 22 is acceptable.

[0048] The floors 21a, 22a, 23a, the ceiling (not shown), and the four walls 21b, 22b, 23b of the first, second, and third cold storage rooms 21, 22a, and 23a, as well as the ceiling (not shown), are formed in a hollow manner and have internal hollow sections, which are filled with vacuum insulation material 15. The wall located between the first cold storage room 21 and the second cold storage room 22 is the same wall 22b (21b) shared by both the first and second cold storage rooms 21 and 22, and the wall located between the second and third cold storage rooms 22 and 23 is the same wall 23b (22b) shared by both the second and third cold storage rooms 22 and 23. Furthermore, one of the floors 21a, 22a, and 23a of each room 21, 22, and 23, as well as the ceiling (not shown), is an intermediate floor located above a portion of the floor on a specific floor.

[0049] An entrance / exit 21c is formed in the southern wall 21b of the four walls 21b of the first cold storage room 21, and this entrance / exit 21c is opened and closed by an opening / closing door 21d. An entrance / exit 22c is formed in the southern wall 22b(21b) of the four walls 22b of the second cold storage room 22, and this entrance / exit 22c is opened and closed by an opening / closing door 22d. An entrance / exit 23c is formed in the southern wall 23b of the four walls 23b of the third cold storage room 23, and this entrance / exit 23c is opened and closed by an opening / closing door 23d.

[0050] For the sake of explanation, the entrance 21c formed in the south wall 21b of the first cold storage room 21 will be referred to as the first entrance 21c, the entrance 22c formed in the south wall 22b of the second cold storage room 22 will be referred to as the second entrance 22c, and the entrance 23c formed in the south wall 23b of the third cold storage room 23 will be referred to as the third entrance 23c. To reach the third cold storage room 23, one must pass through the first entrance / exit 21c, the second entrance / exit 22c, and the third entrance / exit 23c.

[0051] Furthermore, the low-ceiling refrigerated room 20 is located adjacent to several other rooms 24, 25, and 26. For the sake of explanation, the room 24 adjacent to the south side of the low-ceiling refrigerated room 20 will be referred to as the first adjacent room 24, the room 25 adjacent to the west side will be referred to as the second adjacent room 25, and the room 26 adjacent to the east side will be referred to as the third adjacent room 26.

[0052] The first cold storage room 21, located on the southernmost side of the low-ceiling cold storage rooms 20, is adjacent to the first adjacent room 24, and the first cold storage room 21 and the first adjacent room 24 are connected by the first entrance / exit 21c. Therefore, to enter or exit the low-ceiling cold storage rooms 20, it is necessary to go through the first adjacent room 24.

[0053] At least one of the second adjacent room 25 and the third adjacent room 26 may be a low-ceiling space, similar to the low-ceiling cold storage room 20. That is, at least one of the second adjacent room 25 and the third adjacent room 26 has a ceiling height set to 0.8m to 1.4m, and the floor height and ceiling height are set to be the same as those of the low-ceiling cold storage room 20. Although not shown in the figures, one of the second adjacent room 25 and the third adjacent room 26 that is a low-ceiling space is equipped with a heat exchanger for cooling the second cold storage room 22 and a heat exchanger for cooling the third cold storage room 23. However, it is not limited to this, and the heat exchangers may be installed outdoors.

[0054] In addition to using a heat exchanger, various other methods may be employed to cool the second and third cold storage rooms 22 and 23, such as forming a wind tunnel in the house 1, including the low-ceiling cold storage room 20, to continuously discharge air, utilizing evaporative cooling, or utilizing a heat source such as ice.

[0055] According to this modified example, a low-ceiling cold storage room 20 can be introduced into the house 1, and the low-ceiling cold storage room 20, which is a low-ceiling space with a ceiling height of 0.8m to 1.4m, can be effectively used for purposes that take advantage of its particularly high insulation performance compared to the other rooms 24, 25, and 26.

[0056] [Variation 2] Figure 3 is a plan cross-sectional view showing a house in which a low-ceiling sauna room 30 has been introduced as a room with particularly high insulation properties. The low-ceiling sauna room 30 is located adjacent to the bathroom 31 and washroom 32, which have a normal ceiling height, higher than the low-ceiling space of the sauna room 30. The washroom 32 is located adjacent to the terrace 33.

[0057] The low-ceiling sauna room 30 has a ceiling height set at 0.8m to 1.4m. Furthermore, vacuum insulation material 15 is filled into the floor, ceiling, and internal hollow spaces of the walls surrounding the low-ceiling sauna room 30.

[0058] Furthermore, the low-ceiling sauna room 30 is equipped with a heat source, such as a sauna stove or sauna stones (not shown), so that the interior space of the low-ceiling sauna room 30 is heated by the heat source. Furthermore, the low-ceiling sauna room 30 is equipped with a bed 30a made of a flat rock formation, such as tourmaline ore, germanium ore, and radium ore, solidified with silica sand mortar, allowing for rock bathing within the low-ceiling sauna room 30.

[0059] The bathroom 31 is equipped with a bathtub, and the washroom 32 is equipped with a washbasin and a washing machine space. The terrace 33 is surrounded by a fence 33a, which blocks views from the outside.

[0060] The low-ceiling sauna room 30 has a first entrance 34 between it and the bathroom 31, and a second entrance 35 between it and the washroom 32. The first entrance 34 is opened and closed by a door 34a, and the second entrance 35 is opened and closed by a door 35a. Furthermore, a third entrance 36 is formed between the bathroom 31 and the washroom 32. The third entrance 36 is opened and closed by a door 36a. As a result, the low-ceiling sauna room 30, the bathroom 31, and the washroom 32 can be accessed through the first entrance 34, the second entrance 35, and the third entrance 36. In other words, a circulation route is formed between the low-ceiling sauna room 30, the bathroom 31, and the washroom 32, making it easy to move between them.

[0061] Furthermore, an outdoor entrance 37 is formed between the washroom 32 and the terrace 33. The outdoor entrance 37 is opened and closed by a door 37a. Therefore, it is possible to access the terrace 33 from the low-ceiling sauna room 30 or the bathroom 31 through the washroom 32.

[0062] In the bathroom area of ​​the house, which includes the low-ceiling sauna room 30 configured as described above, it is possible to enjoy bathing in a sequence such as undressing in the washroom 32, using the sauna and bedrock bath in the low-ceiling sauna room 30, taking a cold bath in the bathroom 31, and then using the sauna and bedrock bath again in the low-ceiling sauna room 30, or enjoying fresh air on the terrace 33.

[0063] According to this modified example, since the sauna room 30 is a low-ceiling space with a ceiling height of 0.8m to 1.4m, the heat from the sauna tends to accumulate more easily compared to when a room with a normal ceiling height is used as a sauna room. In other words, the sauna room 30 can be heated efficiently while reducing the cost and energy required for the sauna's heat source. Therefore, the sauna room 30 in the low-ceiling space, which has particularly high insulation properties compared to other rooms, can be used for purposes that take advantage of its superior insulation. Furthermore, the low-ceiling space 30, which is the sauna room, is located adjacent to the bathroom 31 and washroom 32, which have a normal ceiling height higher than the low-ceiling space 30. The low-ceiling space 30 has entrances 34 and 35 between it and at least one of the bathroom 31 and washroom 32, so it is possible to move back and forth between the sauna room 30 and the bathroom 31, and between the sauna room 30 and washroom 32. Moreover, if there are entrances 34 and 35 between it and both the bathroom 31 and washroom 32, it is possible to move around the sauna room 30, bathroom 31, and washroom 32. This improves access to the sauna room 30 from the adjacent bathroom 31 and washroom 32, making it easier to enjoy the sauna.

[0064] Furthermore, the washroom 32 is located adjacent to the terrace 33, and an outdoor entrance 37 is formed between the washroom 32 and the terrace 33, allowing movement between the sauna room 30 and the terrace 33, and between the bathroom 31 and the terrace 33, via the washroom 32. This allows for effective reduction of body temperature, which has risen in the sauna room 30 or bathroom 31, by taking a break in the fresh air on the terrace 33.

[0065] [Variation 3] Figure 4 is a plan section showing the first floor of a house in which a low-ceiling storage room 45 (second low-ceiling storage room 45) has been introduced as a room with particularly high insulation properties, and Figure 5 is a plan section showing the 1.5th floor of the house. Figure 6 is a longitudinal section of the house shown in Figures 4 and 5. The modified house in this example consists of a first layer, which corresponds to the first floor and is composed of a first floor F1, and a second layer, which corresponds to the 1.5th floor and is located half a floor higher than the first layer and is composed of a second floor F2. The modified house in this example is a single-story house.

[0066] The entrance 40 of the house is located in the southeast of the main house and comprises a dirt floor area 40a, an entrance hall area 40b that is one step higher than the dirt floor area 40a, and a walk-in closet 40c. The height of the floor in the entrance hall area 40b is equal to the height of the entire first floor (first level).

[0067] At the western end of the northernmost part of the entrance hall 40b, there is an entrance with a door, and beyond this entrance is a first-floor living room 46. Furthermore, upon entering the first-floor living space 46 from the entrance 40, there is a corridor-like space 41 extending to the north. A bathroom / kitchen area 42 is located on the east side of this corridor-like space 41, and the master bedroom 43 is located on the north side.

[0068] The bathroom / kitchen area 42 is located north of the walk-in closet 40c in the entrance hall 40, and includes a toilet, washroom, laundry room, and bathroom.

[0069] The master bedroom 43 can be accessed through an entrance located at the northern end of the corridor-like space 41. The master bedroom 43 is located north of the first-floor living room 46 and west of the laundry room and bathroom in the wet area room 42. As shown in Figure 5, the master bedroom 43 has an open space above it that extends to the ceiling of the second floor and is adjacent to the second-floor bedroom 53.

[0070] Furthermore, a first low-ceiling storage room 44 is provided on the west side of the master bedroom 43. A second low-ceiling storage room 45 is provided on the west side of the first low-ceiling storage room 44. These first low-ceiling storage rooms 44 and the second low-ceiling storage room 45 are located between the first floor F1, which is the same as the first floor, and the second floor F2, which is the same as the 1.5 floor. In other words, the second floor F2, which constitutes the second layer of flooring, is located above a portion of the first floor F1, which constitutes the first layer of flooring, and the space between the first floor F1 and the second floor F2 is the first low-ceiling storage room 44 and the second low-ceiling storage room 45. The first low-ceiling storage room 44 and the second low-ceiling storage room 45 have ceiling heights set between 0.8m and 1.4m.

[0071] The first low-ceiling storage room 44 has an entrance / exit between it and the master bedroom 43, and can only be accessed from the master bedroom 43. In other words, the first low-ceiling storage room 44 is a storage space attached to the master bedroom 43, making it easily accessible to residents who spend their days in the master bedroom 43. In addition, items that are changed seasonally are stored in this first low-ceiling storage room 44.

[0072] The second low-ceiling storage room 45 has an entrance / exit between it and the first-floor living room 46, and is configured to be accessed through this entrance / exit. In other words, the second low-ceiling storage room 45 is a storage space attached to the first-floor living room 46, making it easily accessible to residents who spend their days in the first-floor living room 46.

[0073] Furthermore, the second low-ceiling storage room 45 is located on the north side of the house. At least a portion of the floor in the second low-ceiling storage room 45 is a dirt floor 45a. In addition, of the four walls surrounding the second low-ceiling storage room 45, the wall on the north side is an exterior wall 45b, and this exterior wall 45b is provided with several small windows 45c.

[0074] The earthen floor 45a of the second low-ceiling storage room 45 is formed in a T-shape in plan view, with the portion of the earthen floor 45a corresponding to the horizontal line of the T-shape positioned along the exterior wall 45b. In other words, one side of the earthen floor 45a is provided along the exterior wall 45b, and the portion of the earthen floor 45a corresponding to the vertical line of the T-shape extends from the central part of the portion provided along the exterior wall 45b toward the first-floor living room 46. The earthen floor 45a is located at a height one level lower than the first floor. In other words, the floor surface inside the second low-ceiling storage room 45 consists of two levels: the floor surface located at the same height as the first floor, and the earthen floor 45a. The earthen floor 45a is made of materials with high thermal conductivity, such as concrete, mortar, or tiles. Therefore, it has the effect of preventing the temperature of the second low-ceiling storage room 45 from rising even in the summer.

[0075] The exterior wall 45b is located on the north side of the house. Therefore, even in summer, relatively cool air can be taken in through the small windows 45c formed in this north-facing exterior wall 45b. Multiple small windows 45c have the effect of suppressing the temperature rise in the area corresponding to the horizontal line of the T-shaped floor 45a in plan view. And if the temperature rise in the area corresponding to the horizontal line of the T-shaped floor 45a in plan view is suppressed, then due to its high thermal conductivity, the temperature rise in the area corresponding to the vertical line of the T-shaped floor 45a in plan view will also be more easily suppressed. As a result, it is possible to suppress the temperature rise of the entire second low-ceiling storage room 45.

[0076] Vacuum insulation material 15 is filled into the internal hollow spaces of the floor, ceiling, and walls surrounding the second low-ceiling storage room 45. Specifically, although part of the floor is a dirt floor 45a as described above, the internal hollow spaces of the part located below the dirt floor 45a are filled with vacuum insulation material 15. The ceiling is composed of the second floor F2 of the second layer.

[0077] To the south of this second low-ceiling storage room 45, the first-floor living room 46 is located. The first-floor living room 46 is a room that combines the functions of a dining room 47, a living room 48, and a kitchen room 49 into a single room. This first-floor living space 46 is longer in the east-west direction than in the north-south direction, with the dining room 47 located on the west side and the living room 48 and kitchen room 49 located on the east side. The living room 48 is located on the south side, and the kitchen room 49 is located on the north side.

[0078] The dining room 47 is located south of the second low-ceiling storage room 45, and an entrance 47a is formed in the wall between the dining room 47 and the second low-ceiling storage room 45 (the wall located on the south side of the four walls surrounding the second low-ceiling storage room 45). In other words, this dining room 47 or the first-floor living room 46 including the dining room 47 corresponds to a first living room located on the same floor (same level) as the second low-ceiling storage room 45, which is a low-ceiling space, and is adjacent to it with free movement in the lateral direction. An opening and closing door is provided at the entrance 47a. Additionally, a sliding window 47b is provided in the exterior wall at the southern end of the dining room 47.

[0079] In the exterior wall at the southern end of the living room 48, a waist-high window 48b is provided, the lower end of which is positioned at about waist height (for example, about 80-100 cm from the floor). In this modified example, the waist-high window 48b is positioned to protrude further outward than the sliding door window 47b in the dining room 47, but these sliding door windows 47b and waist-high window 48b may be positioned on the same wall line.

[0080] Located on the east side of the second low-ceiling storage room 45, west of the kitchen room 49, and next to the entrance 47a of the second low-ceiling storage room 45, is a staircase 50 connecting the first floor F1 of the first level of the house and the second floor F2 of the second level. At the top of the stairs 50 is a corridor area 51, and on the north side of this corridor area 51, as shown in Figure 5, are two bedrooms 52 and 53, which are the places where the residents spend their daily lives, arranged from east to west. The corridor area 51 may also be considered as part of the stairs 50 (i.e., the space at the bottom of the stairs 50 or the stairwell).

[0081] On the south side of the corridor 51 at the top of the stairs 50, there is a second-floor room 54 facing the space above the first-floor living room 46, which is used as a multi-purpose space (home commons) shared by the residents. In this modified example, the second-floor room 54 is equipped with a desk and used as an office. The second-floor room 54 is positioned towards the western end of the main house and is adjacent to the upper space of the western end of the first-floor living space 46, where the dining room 47 is located. In other words, in a plan view, the second-floor room 54 is positioned adjacent to one end of the first-floor living space 46 in the longitudinal direction. This second-floor room 54 has a glass wall in the southeast corner, allowing a view of the first-floor living room 46.

[0082] Bedrooms 52, 53 and Room 54 on the second floor are all living spaces. Bedroom 52 and Room 54, located at the western end of the main house, are situated half a floor above the second low-ceiling storage room 45 on the first floor. Furthermore, these bedrooms 52, 53 and Room 54, along with the corridor 51, are located directly beneath the northern roof surface.

[0083] A roof 55 is provided above the main structure of the house, which is configured as described above. The roof 55 is a sloping roof. This roof 55 is a curved roof, with the south side having a longer length to the eaves and the north side having a shorter length to the eaves. In this embodiment, the south and north sides of the roof have a 1 / 3 slope. A solar cell array with multiple solar cell modules is installed on the south side of the roof. A skylight 55a is provided on the north side of the roof, which connects the second floor of the main structure of the house, located directly below the roof 55, to the outdoors. The skylight 55a is located directly above the corridor 51.

[0084] As shown in Figure 6, the first-floor living room 46 is an open space with an upper area that extends directly below the sloping roof 55, and is adjacent to the second-floor room 54. The ceiling 46a of the first-floor living room 46 is a sloped ceiling, and its upper end is set at the same height as the ceilings of each room on the second floor.

[0085] The house, configured as described above, includes a first floor containing a second low-ceiling storage room 45 and a first-floor living room 46, both of which can take in air through multiple small windows 45c; a second floor located above the first floor and directly below the roof 55; and a staircase 50 connecting the first and second floors. A skylight 55a is provided on the north side of the roof 55, connecting the second floor to the outdoors. As a result, air taken into the second low-ceiling storage room 45 flows into the first-floor living room 46, then rises to the second floor via the staircase 50, and finally exits through the skylight 55a, forming a flow.

[0086] According to this modified example, the second low-ceiling storage room 45 is located on the north side of the house, so that the temperature of the second low-ceiling storage room 45 can be kept relatively low during the summer. Furthermore, at least a portion of the floor of the second low-ceiling storage room 45 is a dirt floor 45a, and the wall on the north side of the four walls of the second low-ceiling storage room 45 is an exterior wall 45b, and a small window 45c is provided in this exterior wall 45b. Therefore, during the time of day when the outside temperature is low in the summer, relatively cool air is drawn into the second low-ceiling storage room 45 from the small window 45c on the north side, lowering the temperature of the second low-ceiling storage room 45, and the dirt floor 45a further synergistically helps to maintain a low temperature in the second low-ceiling storage room 45. Furthermore, the skylight 55a formed in the roof 55 allows for the effective expulsion of hot air from inside the house, making it easier to create a comfortable living environment inside the house even during the summer.

[0087] [Variation 4] Figure 7 is a vertical cross-sectional view showing a house in which a low-ceiling equipment room 60 has been introduced as a room with particularly high thermal insulation. The low-ceiling equipment room 60 is a single-story building similar to Figures 4 to 6 above, but with a different configuration of the low-ceiling space. In this modified example, the low-ceiling equipment room 60 is equipped with an air conditioning unit 61, a power conditioner 62, a distribution board 63, and a storage battery 64. Furthermore, this modified example of a house is equipped with a solar power generation system, and a solar cell array 65 is installed on the south-facing roof surface of roof 55.

[0088] The air conditioning unit 61 is connected to a plurality of ducts, including an air supply duct 61a. The air supply duct 61a connects the low-ceiling equipment room 60 to the outside of the low-ceiling equipment room 60 and is piped into the building structure. Specifically, the duct 61a is piped along the first floor F1 of the first layer and the second floor F2 of the second layer. This allows air whose temperature has been controlled by the air conditioning unit 61 to be supplied through the duct 61a.

[0089] The air supply duct 61a, which is piped along the first floor F1 and the second floor F2, is equipped with an air supply vent 61b from which conditioned air is blown out, and this air supply vent 61b is provided facing the living rooms of the house. In this modified example, as shown in Figure 7, air supply vents 61b are provided not only in the first floor living room 46, bedroom 52, and second floor room 54, but also in other living rooms, namely the master bedroom 43 and bedroom 53. This makes it possible to introduce a whole-house air conditioning system into the house of this modified example, and the air conditioning unit 61, which is the main unit of the whole-house air conditioning system, can be installed in the low-ceiling equipment room 60, which is easily accessible from the first floor living room 46.

[0090] The solar power generation system includes a solar cell array 65 consisting of one or more (multiple in this embodiment) solar cell modules, a junction box to which wiring 65a extending from the solar cell modules is connected, a power conditioner 62 to which wiring extending from the junction box is connected, a distribution board 63 to which wiring extending from the power conditioner 62 is connected, and a storage battery 64 to which wiring extending from the power conditioner 62 is connected. Furthermore, it may also include a power detection unit which is a sensor for detecting power, a monitor for checking the power status inside the house, and an autonomous operation outlet for use during power outages.

[0091] The power conditioner 62 has a DC-AC inverter function that converts the direct current (DC) power generated by the solar cell array 65 into alternating current (AC) power, and is directly or indirectly connected to the wiring 65a extending from the solar cell modules that make up the solar cell array 65. The power conditioner 62 also has functions such as voltage stabilization, frequency synchronization, grid power connection, autonomous operation, monitoring and communication, and battery connection. In this modified example, the power conditioner 62 employs an integrated junction box.

[0092] The solar cell array 65 is installed on the south-facing roof surface of the roof 55. The wiring 65a (lead wires) extending from the solar cell modules are routed into the building through through-holes formed by the building's wooden panels that make up the roof 55. Therefore, the wiring 65a extending from the solar cell modules is also referred to as the service drop wire 65a.

[0093] The distribution board 63 is an electrical device that distributes and supplies power to each room and household load within the house. This distribution board 63 receives power not only from the power conditioner 62 but also from the grid power supply via the electricity meter.

[0094] The battery 64 is connected to the power conditioner 62 and the distribution board 63, and can store electricity generated by the solar power generation system and electricity purchased from the grid, and can also supply the stored electricity to the distribution board 63 as needed.

[0095] In a house constructed as described above, most of the large equipment installed in the house is housed in the low-ceiling equipment room 60. Therefore, no large equipment is exposed inside or outside (on the property) of the house. However, equipment that requires ventilation during use should not be installed in the low-ceiling equipment room 60, or it should be installed in a safe manner using ventilation ducts or the like.

[0096] In this modified example, the low-ceiling equipment room 60 has a ceiling height set to 0.8m to 1.4m. Furthermore, vacuum insulation material 15 is filled into the floor (first floor F1), ceiling (second floor F2), and internal hollow spaces in the four walls surrounding the low-ceiling equipment room 60. Furthermore, the low-ceiling equipment room 60 can be partitioned by partition walls 66, and a portion of the low-ceiling equipment room 60 may be used as storage space 67. In this case, the partition walls 66 are also filled with vacuum insulation material 15, and the partition walls 66 are also provided with entrances and insulated doors (not shown).

[0097] According to this modified example, the air conditioning unit 61 installed inside the low-ceiling equipment room 60 can regulate the temperature of the living room facing the air supply opening 61b of the duct 61a. In other words, since the duct 61a can be routed with the low-ceiling equipment room 60 as the central point, more efficient duct 61a routing becomes possible, making it easier to air condition the entire house. In addition, the operating noise and heat generated by the air conditioning unit 61, power conditioner 62, and other equipment installed inside the low-ceiling equipment room 60 are less likely to leak to the outside, making it easier to create a comfortable living environment in the house. [Explanation of Symbols]

[0098] 1. Housing 2a first floor floor 2b First floor wall 3. First Room 4. Second Room 5a second floor 5b Second floor wall 6. Third Room 7. Fourth Room 8 stairs 10 Low ceiling room 11 floors (intermediate floor) 5a Second floor (ceiling) 13 Walls 13a Entrance 14 Wall 15 Vacuum insulation material 16 Opening and closing doors 20 Low-ceiling refrigerated room 21. First cold storage room (cool, dark place) 22. Second cold storage room (refrigerated room) 23 Third cold room (freezer room) 24 First adjacent room 30 Low-ceiling sauna rooms 31 Bathroom 32 Bathroom 33 Terrace 45. Second low-ceiling storage room 45a Earthen floor 45b Exterior wall 45c Small window 46 First floor room 47 Dining Room 55a Skylight 60 Low ceiling equipment room 61 Air conditioner 61a Air intake duct 62 Power Conditioner 63 Distribution board 64 Storage batteries 65 Solar cell arrays

Claims

1. In a dwelling with multiple rooms used as living rooms or non-living rooms, Among the aforementioned multiple rooms, the rooms used as non-habitable rooms include a low-ceiling space enclosed by a floor, a ceiling, and four walls, with a ceiling height set to 0.8m to 1.4m. The floor, the ceiling, and the four walls are formed in a hollow manner and have an internal hollow section. The aforementioned internal hollow portion is filled with the first insulating material. The house is characterized in that the first insulation material has higher thermal insulation performance than the second insulation material used in the other rooms among the multiple rooms, excluding the low-ceiling space.

2. In the dwelling described in claim 1, The aforementioned low-ceiling space is a sauna room. The aforementioned low-ceiling space is located adjacent to a bathroom and washroom, which are set to a normal ceiling height that is higher than the aforementioned low-ceiling space. The aforementioned low-ceiling space is characterized by having an entrance between at least one of the rooms, the bathroom and the washroom.

3. In the dwelling described in claim 2, A residence characterized in that the washroom is located adjacent to the terrace, and an outdoor entrance is formed between the washroom and the terrace.

4. In the dwelling described in claim 1, The aforementioned low-ceiling space is located on the north side of the house. At least a portion of the floor in the low-ceiling space is a dirt floor. A house characterized in that, of the four walls in the low-ceiling space, the wall located on the north side is an exterior wall, and a small window is provided in this exterior wall.

5. In the dwelling described in claim 4, The first floor includes the low-ceiling space and the adjacent living room located on the same floor as the low-ceiling space and accessible horizontally, A second layer, which is above the aforementioned first layer and located directly below the roof, It includes a staircase connecting the first layer and the second layer, A house characterized in that a skylight is provided on the northern roof surface of the aforementioned roof, connecting the second layer with the outdoors.

6. In the dwelling described in claim 1, The aforementioned low-ceiling space is equipped with an air conditioning system installed outside of it. A duct connecting the low-ceiling space to the outside of the low-ceiling space is routed through the building structure, and the air conditioning unit and the duct are connected. A house characterized in that the air intake of the duct is provided facing the low ceiling space.

7. In the dwelling described in claim 1, It is equipped with an air conditioning system installed inside the aforementioned low-ceiling space, A duct connecting the low-ceiling space to the outside of the low-ceiling space is routed through the building structure, and the air conditioning unit and the duct are connected. A dwelling characterized in that the air intake opening of the duct is provided facing the living room.

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