JP2009084936A - Thermal insulation dwelling house and ventilation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermal insulation dwelling house having a thermal insulation structure capable of comfortably keeping a temperature in a room without requiring an air conditioning facility such as an air conditioner. <P>SOLUTION: This thermal insulation dwelling house 1 comprises a thermal insulation structure around an external wall 12. The thermal insulation structure comprises an inner heat insulation sheet 25 disposed along the external wall 12, a side board 26 surrounding the outer periphery of the inner heat insulation sheet 25, an outer heat insulation sheet 27 opposed to the inner heat insulation sheet 25 through the side board 26, and a heat insulation material 24 such as cellulose fibers and glass wool disposed in the heat insulation space parts 23 surrounded by the inner heat insulation sheet 25, the side board 26, and the outer heat insulation sheet 27. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an insulated house and a ventilation system that can achieve efficiency and energy saving of air conditioning.

  Conventionally, in order to have a comfortable winter and summer seasons, and to improve the efficiency and labor saving of heating and cooling, heat insulation is provided on the housing such as walls of many houses and buildings. As for the construction of this heat insulating material, an internal heat insulating method generally formed by filling a wall with fiber-based heat insulating material such as glass wool is common, but the outer surface of the wall is covered with a plastic heat insulating board. Thermal insulation methods are also being adopted.

  Since the inner heat insulating method is filled with the heat insulating material in the wall, the space inside and outside the building can be effectively secured, but the thickness of the heat insulating material is limited to the thickness inside the wall, Since the filling of the heat insulating material is divided by pillars or other partitions, there is a problem that a sufficient heat insulating effect cannot be obtained.

  On the other hand, the outer heat insulation method has the advantage that the heat insulation effect is superior to the inner heat insulation method because the continuity of heat insulation is maintained because the wall surface is completely covered with the heat insulation board. However, since the said heat insulation board protrudes from a wall surface, it has the problem that the surrounding space is restrict | limited. Regarding this outer heat insulation construction method, some have devised the heat insulation structure, attachment to the wall surface, and the like (see Patent Documents 1 and 2).

Several proposals have also been made for housing structures that employ a ventilation system to keep the temperature and humidity inside the building constant by taking outside air into the building and exhausting the air accumulated in the building to the outside. ing. This ventilation system can be used in combination with the heat insulation structure.
Japanese Patent Laid-Open No. 2005-23678 Japanese Patent Laid-Open No. 2004-060959

  In the conventional inner heat insulating structure, since the heat insulating material must be installed in a state where a predetermined space for ventilation is secured inside the wall, the installation location and the thickness of the heat insulating material are limited. For this reason, the effect of installing the heat insulating material cannot be obtained sufficiently, and there is a problem that the room temperature cannot be maintained in a comfortable state unless a cooling / heating facility such as an air conditioner is borrowed in midsummer or midwinter. Moreover, the room temperature which became comfortable state by the said air conditioning equipment will return to the same state as external air with progress of time. For this reason, the operation rate of the said air conditioning equipment increases, and there also exists a problem of causing an environmental destruction in connection with it.

  On the other hand, in the conventional outer heat insulating structure, there are two methods of construction, in which the heat insulating material is provided on the inside of the wall facing the room and applied on the outside of the wall. The former construction method has a drawback that the indoor living space becomes narrow depending on the thickness of the heat insulating material. On the other hand, since the latter construction method installs the said heat insulating material in the outer side of a wall, it can adjust the thickness of a heat insulating material freely, without narrowing an indoor living space. However, it is difficult to obtain the heat insulation effect until the air conditioning equipment is not required only by adjusting the thickness of the heat insulating material. Moreover, since the weight increases when the heat insulating material is formed thick, there is a problem that the fixing to the wall must be made strict.

  In addition, in a conventional ventilation system in a house, there is one in which an underfloor space and a shed space are communicated with each other through a ventilation space provided in a wall. Since the space for ventilation is narrowed by installing the heat insulating material inside, there is a problem that the air flow between the underfloor space and the attic space is not smoothly performed. On the other hand, in the outer heat insulating structure, since the heat insulating material is provided outside the wall, the ventilation space inside the wall can be effectively taken, but since the heat insulating effect is not sufficient, the cold air sent from the underfloor space There is a problem that the warm air sent from the cabin space cannot be efficiently led into the room as it is. Further, since the cool air sent from the underfloor space often contains moisture, there is a risk of corroding the wall when introducing outside air into the room.

  Therefore, an object of the present invention is to improve heat insulation efficiency by using together with a heat insulation house having a heat insulation structure that can keep indoor temperature comfortable without requiring air conditioning equipment such as an air conditioner and the heat insulation structure. It provides a ventilation system that can.

  In order to solve the above-described problems, the heat-insulated house of the present invention is a heat-insulated house having a heat-insulating structure around an outer wall, and the heat-insulating structure is formed by a frame projecting outside the outer wall. And a heat insulating material filled in the heat insulating space.

  In addition, the ventilation system of the present invention includes an air circulation path in which an air passage provided on the outer periphery of the heat insulating structure communicates with the space behind the hut and the space under the floor, and an outside air is provided from an outside air inlet provided at one end of the air passage. The interior of the house is heated or cooled by introducing the air and circulating in the air circulation path.

  According to the heat insulating house of the present invention, a heat insulating structure is provided around the outer wall, and the heat insulating structure is formed by a frame body that protrudes outside the outer wall, and the heat insulating material filled in the heat insulating space. It consists of. For this reason, the said heat insulation space part can be formed so that it may protrude largely to the circumference | surroundings of an outer wall, and the high heat insulation effect according to this protrusion width | variety can be acquired. As a result, it is possible to maintain a comfortable temperature throughout the year without using air conditioning equipment such as an air conditioner.

  Further, according to the ventilation system of the present invention, since the heat insulating effect by the heat insulating structure can be sufficiently obtained, it is possible to circulate the air indoors in a state in which the cool air from the underfloor space and the warm air from the cabin space are sufficiently retained. .

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a heat-insulated house according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 shows a cross-sectional structure of a two-story heat insulating house 1 having a heat insulating structure. The heat-insulating house 1 includes a base portion 2a made of concrete, a frame portion 2b formed of pillars 3 and walls 4 and a roof 5 assembled on the base portion 2a, and a heat insulating structure (heat insulator) provided on the frame portion 2b. 20a and 20b. The housing 2b is composed of, for example, a first-floor room 6, a second-floor room 7, and a shed space 8, and has a ceiling space 9 above the first-floor room 6 and the second-floor room 7. . The heat insulators 20a and 20b are formed with a large capacity in order to comfortably maintain the temperature and humidity in each room, and are provided outside the wall 4 and in the ceiling space 9.

  As shown in FIG. 2, the wall 4 includes an outer wall 12 and an inner wall 13 that are provided to face each other, and a space (inner air passage) 15 that is formed between the outer wall 12 and the inner wall 13. . The inner air passage 15 is provided to take in fresh outside air into the heat-insulating house 1 or to discharge dirty air inside. And vents for discharging are appropriately provided.

  As shown in FIG. 2, the heat insulating body 20 a includes a heat insulating space portion 23 formed by a frame 22 provided so as to protrude from the outer surface of the outer wall 12, and a heat insulating material 24 filled in the heat insulating space portion 23. And is composed of.

  The frame body 22 is disposed so as to face the inner heat insulating sheet 25 through the side plate 26, an inner heat insulating sheet 25 disposed along the outer wall 12, a side plate 26 surrounding the outer periphery of the inner heat insulating sheet 25, and the side plate 26. The outer heat insulating sheet 27 is formed. The inner heat insulating sheet 25 covers the entire outer side surface of the heat-insulating house 1, and the end portion is widely formed by hanging on the pillar 3. The inner heat insulating sheet 25 is joined or fixed so as to be in close contact with the outer wall 12. The side plate 26 is attached so as to surround the four sides by using L-shaped mounting brackets 28 provided at the corners of the inner heat insulating sheet 25. The width of the side plate 26 is the width of the heat insulating space 23 and is formed to be 20 to 40 cm. Further, the outer heat insulating sheet 27 is formed to have substantially the same size as the outer wall 12 and is placed and fixed on the upper end of the side plate 26 so as to face the inner heat insulating sheet 25.

  The heat insulating space 23 formed by the frame body 22 is filled with a heat insulating material 24 such as cellulose fiber or glass wool. The heat insulating material 24 is inserted into the inlet (not shown) with a part of the side plate 26 opened, and the tip of a hose or nozzle is inserted from here to fill the heat insulating material 24, and the heat insulating space 23 is completely filled. Close and seal. In addition to the cellulose fiber and glass wool, the heat insulating material 24 can be used by mixing finely cut materials such as wool, rice husk, straw, and wood waste.

  The frame body 22 is fixed to one end of the eaves of the roof 5 via an attachment plate 29 attached to the outer surface of the outer heat insulating sheet 27.

  In addition, an outer panel 42 is disposed on the outer periphery of the mounting plate 29 so as to have a space portion of a predetermined interval that becomes the outer ventilation path 43. The outer air passage 43 is for taking outside air that passes outside the heat insulating body 20a into the inside of the housing portion 2b, or for discharging dirty air in the housing portion 2b to the outside, for example, 15 to 18 mm. It is formed from under the floor to the back of the ceiling at intervals of. In addition, at the lower end of the exterior panel 42, a control metal fitting 44 is provided for preventing drainage of rainwater and the like and entry of pests such as termites into the outer ventilation path.

  FIG. 3 shows a construction example in the case where the heat insulator 20a is provided on the outer wall 12 provided with the window 45. As shown in FIG. The heat insulator 20 a is provided along the outline of the inner heat insulating sheet 25 disposed so as to avoid the window portion 45, the outer heat insulating sheet 27 provided to face the inner heat insulating sheet 25, and the window portion 45. And the side plate 26. In addition, the said heat insulating body 20a can be formed in a block unit, and can also be arrange | positioned by combining in the left-right direction and the up-down direction of the said window part 45, or joining. The heat insulating space portion 23 formed by the heat insulating body 20a is set to a width of 20 to 40 cm like the frame body 22 shown in FIG.

  As shown in FIGS. 2 and 3, by providing the heat insulating body 20 a having the heat insulating space portion 23 having a large capacity so as to protrude outward from the outer wall 12, the amount of heat insulating material 24 is increased and the heat insulating efficiency is increased. Can do. Further, the inner air passage 15 in the outer wall 12 to which the inner heat insulating sheet 25 of the frame body 22 is fixed, and the outer air passage 43 provided between the outer heat insulating sheet 27 and the exterior panel 42 are used. Heavy air passages can be formed. In the summer, the outer ventilation path 43 serves to release heat from the exterior panel 42 heated by solar heat upward, and at the same time, serves to release moisture inside the housing portion 2b. On the other hand, the inner air passage 15 is provided to circulate fresh air from the underfloor space 54 and the attic space 8 into the room. In particular, in the summer season, by sucking cool air from the underfloor space 54, a cooling effect in each room can be obtained. In winter, each warm air warmed in the cabin space 8 is blown down to the underfloor space 54, An indoor heating effect can be obtained. Further, by providing the inner air passage 15, it is possible to always let fresh air come into contact with the wood constituting the frame portion 2b such as the base, pillar, beam, etc., and to suppress corrosion and generation of mold due to moisture and durability. Can be increased. In addition, since the heat insulating space 23 is wide, the heat insulating body 20a can completely block the air flowing through the inner air passage 15 and the air flowing through the outer air passage 43. Therefore, the influence of the temperature change caused by the interference between the warm air and the cold air passing through the respective air passages can be suppressed.

  FIG. 4 shows an embodiment in which the heat insulator 20b is provided between the ceiling back space 9 and the cabin back space 8. As shown in FIG. The heat insulating body 20b includes an upper heat insulating sheet 46 provided on the back side of the floor of the cabin space 8 and a lower heat insulating sheet 47 provided to face the upper heat insulating sheet 46. The heat insulating material 24 is filled in the heat insulating space 23 sandwiched between the lower heat insulating sheet 47. The heat insulating body 20b composed of the upper heat insulating sheet 46, the lower heat insulating sheet 47 and the heat insulating material 24 has the same configuration as the heat insulating body 20a shown in FIGS. 2 and 3, but the construction method is different. As described above, the upper heat insulating sheet 46 is fixed by sticking or striking along the floor lower surface of the cabin space 8 excluding columns and beams. On the other hand, the corners and side portions of the lower heat insulating sheet 47 are supported by pillars, beams, and the like, and the lower surface is supported by a bar-like support member that is erected at a predetermined interval from the floor surface of the ceiling back space 9. The heat insulating material 24 is filled by inserting a hose or a nozzle from a hole (not shown) provided at one end of the upper heat insulating sheet 46 from the cabin space 8 side.

  Thus, by providing the heat insulator 20b between the attic space 8 and the ceiling space 9, the cool air from the underfloor space 54 can be blocked from the attic space 8 heated by solar heat in the summer. . For this reason, the cooling effect in the ceiling space 9 can be sufficiently retained. Further, in the winter season, warm air introduced from the back space 8 into the ceiling space 9 can be stored and released to the outside, so that the heat retaining effect in the ceiling space 9 can be sufficiently maintained.

  Next, based on FIG. 5, the structural example of the heat insulation house 10 provided with the said heat insulating bodies 20a and 20b and the ventilation system 30 is demonstrated. The insulated house 10 includes a blower 31 that forcibly circulates air in the housing portion 2b provided with the heat insulators 20a and 20b, and an air circulation path connected to the blower 31, and also circulates cold air underground. The cold air introducing portion 61 is installed.

  As shown in FIG. 1, in addition to the inner ventilation path 15 in the wall 4 and the outer ventilation path 43 outside the heat insulator 20a, the air circulation path is connected to the space between the cabin space 8 and the underfloor space 54. An air duct 48 and an exhaust duct 49 are included. The inner air passage 15 is formed with a gap of about 90 mm, and the outer air passage 43 is formed with a gap of about 18 mm, and communicates with the back space 8 and the under floor space 54. The outside air introduced into the outside air passage 43 is guided from the first outside air inlet 16 provided between the base portion 2 a and the lower end portion of the exterior panel 42. Also, on the inner wall 13 of the first-floor room section 6 and the second-floor room section 7, the air supply window 17a for taking the air transmitted through the inner air passage 15 into each room and the air circulated in the room are discharged. An exhaust window 17b is provided. The air supply window 17a and the exhaust window 17b are provided with a filter so as not to let dust and dirty air pass therethrough, or provided with opening / closing means such as a shutter so as to be closed when not in use. There is.

  The air supply duct 48 guides the air collected in the attic space 8 to the underfloor space 54, and the exhaust duct 49 is provided to discharge the air circulated in each room to the outside. The air supply duct 48 is connected to the air supply portion of the blower 31 installed in the cabin space 8 and extends as it is toward the underfloor space 54. The exhaust duct 49 is sent from the exhaust window 17b provided in each room to the exhaust part of the blower 31. The exhaust ducts 49 extending from the living rooms are combined together via the branch chamber 41 and connected to the exhaust part of the blower 31. The air supply duct 48 and the exhaust duct 49 are provided independently so as not to be mixed with air passing through the outer air passage 43 and the inner air passage 15.

  As shown in FIG. 6, the blower 31 includes an air supply portion 32 that circulates outside air into the housing portion 2 b through the heat storage member 51, and a housing portion that circulates the air circulated in each room through the heat storage member 51. 2b and an exhaust part 33 for discharging outside. The air supply unit 32 includes an air supply port 34 for introducing air rising in the outer air passage 43, an exhaust port 35 for connecting an air supply duct 48 extending to the underfloor space 54, and the air supply port 34. A first blower fan (not shown) that feeds air toward the exhaust port 35 is provided. On the other hand, the exhaust part 33 is connected to an air supply port 36 to which an exhaust duct 49 extending from the branch chamber 41 is connected, and an exhaust port 37 leading to an exhaust window 38 provided on the wall surface of the cabin space 8 via the heat storage member 51. And a second blower fan (not shown) for sending dirty air from the exhaust port 37 to the exhaust window 38 through the heat storage member 51 from the exhaust port 37.

  The heat storage member 51 is provided to replace the air without reducing the efficiency of heating or cooling. As shown in FIG. 6, an air supply path 52 is provided at the center, and an air passage is provided on the outer periphery thereof. A plurality of exhaust passages 53 are provided. The air supply passage 52 is made of a vinyl chloride pipe having a hollow central portion, and the exhaust passage 53 is provided with a sheet member such as a permeation sheet having moisture exhaustion and heat absorption around the vinyl chloride pipe. Or a porous resin material. This heat storage member 51 is provided in the front stage of the blower 31 and takes in fresh outside air introduced into the cabin space 8 and absorbs heat in the process of passing through the air supply path 52 provided in the interior. Is adjusted and is taken into the air supply port 34 of the blower 31. Moreover, since the warm air from each room sent out from the exhaust port 35 of the blower 31 passes through the exhaust passage 53, the heat storage member 51 is always in a warm state. Thus, by discharging the warm air released to the outside of the heat insulating house 10 by the heat storage member 51, the fresh air introduced into the cabin space 8 can be sent to the blower 31 in a warmed state, Heat loss can be significantly reduced, and labor saving can be achieved.

  In addition, a three-way valve 39 is provided at the tip of the heat storage member 51, and the inflow of air is switched between the inlet A for drawing air in the cabin space 8 and the inlet B for drawing air from the ceiling space 9. A route can be selected. The inlet A is mainly used when circulating the warm outside air sent to the cabin space 8 through the outer ventilation path 43, and the inlet B is used when circulating the cool air transmitted through the inner ventilation path 15. It is done.

  As shown in FIG. 5, the outer air passage 43, the cabin space 8, the underfloor space 54, the inner air passage 15, the ceiling back space 9, the air supply duct 48 and the exhaust duct 49 are connected to each other as one air circulation. The air is forcibly circulated in the heat-insulated house 10 by the blower 31 installed in the attic space 8, and the air in each room is always kept fresh. Yes. The ventilation jalousie 60 provided in the upper part of the attic space 8 can be opened and closed in order to adjust the temperature in the attic space 8, and is closed when circulating warm air so as not to miss the warm air. When it is circulated through the cold air, it is opened so that heat does not accumulate.

  Next, FIG. 6 shows the configuration and operation when heating is performed by circulating warm air in each room. Hereinafter, the air flow is indicated by arrows. In winter when the room temperature is low, warm air on the south side that is well radiated by sunlight enters the first outside air inlet 16 provided at the lower end between the exterior panel 42 and the outer surface of the heat insulator 20a, and enters the outside air passage. It is collected in the attic space 8 by riding on the rising air current due to the temperature difference in 43. Then, the air collected in the shed space 8 is further warmed by sunlight falling on the roof 5 surface. This warmed air is drawn from the A side of the three-way valve 39 provided at the inlet of the air supply section 32 of the blower 31 and is sent to the underfloor space 54 via the air supply duct 48. While the floor material 21 is warmed by the air sent into the underfloor space 54, the inner air passage 15 of the communicating wall 4 is raised, and warm air flows into each living room through the air supply window 17 a. Then, the air that has flowed in circulates in each room, and is then exhausted from the exhaust window 38 through the branch chamber 41 and the exhaust part 33 of the blower 31 from the exhaust window 17b provided on the ceiling surface. In this way, by operating the blower 31, it is possible to heat without using a heat source such as electricity or oil by always taking in warm outside air and circulating it in each room. In addition, air that has been circulated through each living room and exhausted through the exhaust duct 49 and the exhaust portion 33 of the blower 31 is discharged outside the heat insulating house 1, so that fresh air can always be circulated into the heat insulating house 10. it can.

  FIG. 7 shows the configuration and operation in the case where cold air is circulated in each room by the ventilation system 30 of the present invention. The air flow is indicated by arrows as in FIG. As a means for introducing cold air, a cold air introducing portion 61 for allowing cool outside air to flow into the underfloor space 54 of the heat-insulated house 10 is provided. The cold air introduction unit 61 includes an air supply pipe 62 that extends from the cool north side surface that is not directly irradiated with sunlight through the ground into the underfloor space 54. The air supply pipe 62 is piped through the water storage tank 63 such as a septic tank or a rainwater tank. Therefore, the air introduced from the second outside air introduction port 64 protruding to the ground surface can be sent into the underfloor space 54 while being cooled. On the other hand, warm air is carried to the cabin space 8 from the first outside air introduction port 16 and is carried to the cabin space 8 but can be released outside the building through the ventilation jalousie 60 without being circulated inside the building. The cooling effect is not impaired. In addition, by setting a double moisture absorption filter in the second outside air introduction port 64, moisture contained in the cold air on the ground surface can be absorbed and only dry cold air can be circulated in each room.

  The air sent into the underfloor space 54 rises in the inner air passage 15 by the blower 31 installed in the cabin space 8. As the air rises, cold air flows from the air supply window 17a provided on the inner wall of each living room and circulates in the living room. Further, the air rising from the underfloor space 54 through the inner ventilation path 15 is sucked by the blower 31 from the ceiling space 9 on the uppermost floor and further circulated through the air supply duct 48 into each living room again. When air is supplied from the ceiling space 9 to the blower 31, the inlet A of the three-way valve 39 provided at the inlet 34 of the blower 31 is closed and the other inlet B is opened. Done. The air circulated in each room is sent from the exhaust window 17b provided near the ceiling in each room to the exhaust part of the blower 31 through the exhaust duct 49 and is discharged from the exhaust window 38. In summer, the ventilation jalousie 60 is opened as described above so that the temperature in the cabin space 8 is adjusted so as not to rise.

  In the above embodiment, in the winter season, warm air can be effectively circulated through the building from the first outside air inlet 16 facing the south side for heating, and in the summer season, the water passes through the water storage tank 63 such as a septic tank or rainwater tank. The cooling effect can be obtained by drawing the air into the underfloor space 54 through the air supply pipe 62 that is piped in this way and circulating it in each room through the inner air passage 15 and the like.

It is sectional drawing which shows the whole structure of the heat insulation house which concerns on this invention. It is a fragmentary sectional view of the wall surface of the said heat insulation house. It is a fragmentary sectional view of the window part periphery of the said heat insulation house. It is a fragmentary sectional view which shows the ceiling back space and the hut back space of the said heat insulation house. It is sectional drawing which shows the whole structure of the heat insulation house provided with the ventilation system. It is explanatory drawing which shows the structure of an air blower and a thermal storage member. It is explanatory drawing which shows the circulation path | route of the cold in the said heat insulation house.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,10 Thermal insulation house 2a Foundation part 2b Housing part 3 Column 4 Wall 5 Roof 6 1st floor room part 7 2nd floor room part 8 Hut space 9 Ceiling space 12 Outer wall 13 Inner wall 15 Inner air passage 16 First outside air inlet 17a Air supply window 17b Exhaust window 20a Heat insulator (heat insulation structure)
20b Heat insulator (heat insulation structure)
DESCRIPTION OF SYMBOLS 21 Floor material 22 Frame 23 Heat insulation space part 24 Heat insulation material 25 Inner heat insulation sheet 26 Side plate 27 Outer heat insulation sheet 28 Mounting bracket 29 Mounting plate 30 Ventilation system 31 Blower 32 Air supply part 33 Exhaust part 34,36 Air supply port 35,37 Exhaust port 38 Exhaust window 39 Three-way valve 41 Branch chamber 42 Exterior panel 43 Outer air passage 44 Control metal fitting 45 Window part 46 Upper heat insulation sheet 47 Lower heat insulation sheet 48 Air supply duct 49 Exhaust duct 51 Heat storage member 52 Air supply path 53 Exhaust Road 54 Underfloor space 60 Ventilation jalousie 61 Cold air introduction part 62 Air supply pipe 63 Reservoir 64 Second outside air introduction port

Claims (9)

It is an insulated house with a heat insulation structure around the outer wall,
The heat insulating structure includes a heat insulating space formed by a frame protruding outside the outer wall and a heat insulating material filled in the heat insulating space. A heat-insulating house with a heat insulating structure around the outer wall and between the roof and the ceiling,
The heat insulating structure includes a heat insulating space formed by a frame projecting outside the outer wall and inside the shed, and a heat insulating material filled in the heat insulating space. The heat insulation house according to claim 1 or 2, wherein the heat insulation structure includes the frame body and a ventilation path provided along an outer surface of the frame body. The heat insulation house according to claim 1 or 2, wherein the frame body includes a pair of heat insulating sheets facing each other with a thickness width for filling the heat insulating material. The heat insulation house according to claim 4, wherein the thickness width is 20 cm or more and 40 cm or less. The heat insulating house according to claim 1 or 2, wherein the heat insulating material is any one of cellulose fiber, glass wool, wool, chaff, straw, and wood waste. An air circulation path in which the air passage provided on the outer periphery of the heat insulating structure according to claim 1 and the space behind the hut and the space under the floor communicates, and introduces outside air from an outside air inlet provided at one end of the air passage. A ventilation system that heats or cools a house by circulating the air circulation path. A ventilation path provided on the outer periphery of the heat insulating structure according to claim 1, an air circulation path in which the back of the hut and the space under the floor communicate with each other, and a blower that controls the flow of air in the air circulation path, A ventilation system that heats or cools a house by circulating outside air introduced from an outside air introduction port provided at one end of the ventilation passage through the air circulation passage by the blower. The ventilation system according to claim 8, wherein a heat storage member is provided at an air supply port and an exhaust port of the blower, and air accumulated in the back of the cabin is circulated in the air circulation path by the heat storage member.

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