JP2006263016A - Bathroom structure and construction method of bathroom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathroom structure exerting a stable heat retaining effect on the bathroom whole body including a wash place as well as a bathtub. <P>SOLUTION: A lower-part heat insulating material layer 21 is disposed below a unit bath 10 including the bathtub 14 and the wash place 15 at a prescribed interval, and a heat retaining air layer 18 thermally continued below from the bathtub 14 to the wash place 15 and having its circumference surrounded with an outer circumference heat insulating material layer 22 is formed between the unit bath 10 and the lower-part heat insulating material layer 21, so that the heat retaining air layer 18 is functioned as a perfect heat retaining layer surrounded with the outer circumference heat insulating material layer 22 and the lower-part heat insulating material layer 21, and the bathtub 14 and the wash place 15 are effectively retained warm by the presence of the heat retaining air layer 18 and the lower-part heat insulating material layer 21. The heat transmitted from the bathtub 14 to the heat retaining air layer 18 is transmitted below the wash place 15 and retains the heat of the wash place 15 from a floor face to provide the stable heat retaining effect of the bathroom whole body including the wash plate 15 as well as the bathtub 14. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a bathroom structure and a bathroom construction method capable of obtaining a stable heat retaining effect not only in a bathtub but also in the entire bathroom.

  As shown in FIG. 10, a so-called half-type bathroom is conventionally known. This half-type bathroom is a type in which a unit bath (tub with a washing area) 100 is provided inside the building 101 to form a bathroom, but the wall surface 102 and the bathtub 104 of the unit bath 100 are formed on the foundation of the building 101. The structure is such that it is directly exposed to the outside air entering from the vent 106. For this reason, even inside the building 101, the temperature of the space 108 (hereinafter referred to as “building internal temperature space”) composed of the outer wall 110 of the building 101, the wall surface 102 of the unit bath 100 and the bathtub 104 is The temperature is almost the same.

  In this way, the back surface of the bathtub 104 is directly exposed to the outside air, and the general bathtub 104 is made of a thin, lightweight, high-strength resin such as GFRP (glass fiber reinforced plastic). There is a problem that the heat retaining property is low, the heat of hot water in the bathtub 104 is easily radiated to the outside air temperature space 108 inside the building, and the hot water temperature is likely to be lowered. In particular, this phenomenon becomes remarkable in the winter when the outside air temperature rapidly decreases, and the heat retaining effect of the bathtub 104 is deteriorated.

  FIG. 11 is intended to improve the heat retaining effect of the bathtub 104. An FRP backing plate 107 that receives the heat insulating material 109 is installed below the unit bath 100 including the bathtub 104 and the washing place. A space between 107 and the unit bath 100 is filled with a heat insulating material 109. (Patent Document 1 below).

FIG. 12 also shows an attempt to improve the heat retaining effect of the bathtub 104, in which a waterproof pan 103 is disposed below the bathtub 104 and a heat retaining space 105 is formed between the waterproof pan 103 and the bathtub 104. (Patent Document 2 below).
Japanese Examined Patent Publication No. 60-49491 JP 2005-2738 A

  However, as in the above-mentioned Patent Document 1, in the case where the receiving plate 107 over the entire area of the unit bath 100 is installed below the unit bath 100, the lower surface of the bathroom is sealed with the receiving plate 107, which is sufficient. Air permeability cannot be secured. For this reason, moisture in the bathroom does not escape and condensation occurs, causing problems such as growth of mold, decay of wood, and rusting of reinforcing bars. Therefore, it is necessary to provide a vent hole 111 in the receiving plate 107. Further, since the backing plate 107 is made of FRP, there is a problem that it is difficult to perform maintenance of the piping, the bathtub 104, and the like from under the floor, and the maintainability is not good. Furthermore, since the backing plate 107 is a molded product of FRP, it is necessary to perform molding according to the state of the installation place, the productivity is extremely poor, and in some cases, on-site construction matched to the shape of the backing plate 107 is required. I had to do it. Moreover, a large FRP molded product such as the backing plate 107 is not preferable for disposal as industrial waste, and has a large environmental load.

  Further, in the case where the waterproof pan 103 is disposed under the bathtub 104 to form the heat retaining space 105 as in the above-mentioned Patent Document 2, the air permeability of the outside air temperature space 108 inside the building is ensured, and the heat retaining property of the bathtub 104 is Although it increases, there is a problem that the floor surface 112 of the washing place is directly exposed to the outside air temperature space 108 inside the building, and the heat retaining property in the bathroom is still poor. Therefore, even if only the bathtub 104 has better heat retention, the heat retention is not sufficient when viewed in the entire bathroom, resulting in a decrease in the temperature in the bathtub 104 and the cost of heating the bathroom. was there.

  As described above, in the conventional bathroom structure, not only the bathtub but also the entire bathroom can be obtained with a stable heat-retaining effect, and the air conditioner and maintainability are not provided.

  The present invention has been made in view of the circumstances as described above, and can obtain a stable heat-retaining effect not only in a bathtub but also in the entire bathroom including a washing place, and also has a bathroom structure and a bathroom construction method that have air permeability and maintainability. The purpose is to provide

  In order to achieve the above object, in the bathroom structure of the present invention, a lower heat insulating material layer is disposed at a predetermined interval below a unit bath including a bathtub and a washing place, and between the unit bath and the lower heat insulating material layer. In addition, the gist of the present invention is that a heat insulating air layer is formed which is thermally continuous from below the bathtub to below the washing place and is surrounded by an outer peripheral heat insulating material layer.

  Further, in order to achieve the above object, the bathroom construction method of the present invention includes a lower heat insulating material layer arranged at a predetermined interval below the unit bath in a unit bath installation portion including a bathtub and a washing place, By arranging the outer peripheral heat insulating material layer around the installation part and installing the unit bath in the installation part surrounded by the outer peripheral heat insulating material layer, from the lower part of the bathtub between the unit bath and the lower heat insulating material layer The gist is to form a heat insulating air layer that is thermally continuous over the lower part of the washing area and is surrounded by an outer peripheral heat insulating material layer.

  That is, according to the present invention, between the unit bath and the lower heat insulating material layer, a heat insulating air layer is formed which is thermally continuous from the lower part of the bathtub to the lower part of the washing place and is surrounded by the outer peripheral heat insulating material layer. . For this reason, since the heat insulating air layer functions as a heat insulating layer surrounded by the outer peripheral heat insulating material layer and the lower heat insulating material layer, the bathtub is effectively kept warm by the presence of the heat insulating air layer and the lower heat insulating material layer. The temperature drop of the hot water inside is prevented. In addition, the washing place is also effectively kept warm by the presence of the heat insulation air layer and the lower heat insulating material layer, and the temperature drop of the washing place is prevented. And since the said heat insulation air layer is formed over the downward direction of a washing place from the lower part of a bathtub, the heat transmitted from the bathtub to the heat insulation air layer is transmitted to the downward direction of a washing place, and heats a washing place from a floor surface. In this way, a stable heat-retaining effect can be obtained not only for the bathtub but also for the entire bathroom including the washing place, temperature drop in the bathtub can be prevented, and energy for bathroom heating can be saved.

  In the present invention, when the lower heat insulating material layer has water vapor permeability that allows water vapor to pass from the heat insulating air layer toward the lower space below the lower heat insulating material layer, the moisture in the heat insulating air layer. It effectively escapes to the lower space to prevent condensation in the thermal insulation air layer, and does not impair the function as the thermal insulation layer of the thermal insulation air layer, while exhibiting effective thermal insulation performance, and deterioration of building materials including wood and reinforcing bars Is prevented.

  In the present invention, when there is no structure for blocking the space between the heat insulation air layer and the lower space below the unit bath, the maintenance is hindered when the pipe or the bathtub needs to be repaired. Therefore, maintenance from under the floor can be easily performed. In addition, since there are few structural bodies that cause disposal problems, such as conventional backing plates, the environmental load is small. In addition, there is no need for on-site construction according to the shape of the backing plate as in the prior art, and the on-site workability and design freedom are improved.

  In the present invention, when a windproof treatment is applied to the seam portion present at the periphery of the heat insulating material constituting the lower heat insulating material layer and / or the outer peripheral heat insulating material layer, the seam between the heat insulating materials, the heat insulating material, and the like. The minute gap formed at the joint with the other member is windproofed, and the cold air passing through the lower space flows into the heat insulation air layer through the minute gap, preventing the heat insulation air layer from lowering temperature and reducing the heat insulation effect. In addition, a stable warming effect can be obtained throughout the bathroom.

  In the present invention, when the lower heat insulating material layer has ventilation openings with an area ratio of 70% or more of the installation area of the unit bath extending from the lower part of the bathtub to the lower part of the washing place, the moisture in the heat insulation air layer is vented. Since it effectively escapes to the lower space through the opening, condensation is prevented, the function of the heat insulation air layer as a heat insulation layer is not impaired, and deterioration of building materials including wood and reinforcing bars is prevented.

  Next, the best mode for carrying out the present invention will be described.

  1 and 2 are diagrams showing an embodiment of a bathroom structure according to the present invention.

  In this bathroom structure, a lower heat insulating material layer 21 is disposed at a predetermined interval below a unit bath 10 including a bathtub 14 and a washing place 15, and between the unit bath 10 and the lower heat insulating material layer 21, a bathtub is provided. A heat insulating air layer 18 is formed which is thermally continuous from the lower part of 14 to the lower part of the washing place 15 and is surrounded by the outer peripheral heat insulating material layer 22.

  More specifically, the unit bus 10 is installed in a building frame 11 including a foundation 28 and a base 29 installed on the foundation 28. The unit bath 10 is a three-part type in which the bathtub 14, the washing place 15 disposed beside the bathtub 14, and the apron 16 connecting the bathtub 14 and the washing place 15 are divided into three parts. The bathtub 14, the washing area 15, and the apron 16 are each formed from a molded product of FRP.

  The unit bath 10 including the bathtub 14, the washing place 15, and the apron 16 is installed on a suspension base 31 suspended from a base 29 of the building frame 11. The suspension base 31 is installed so as to span a plurality of bases 29 installed on the foundation 28. The suspension base 31 secures the lower space 19 on the lower side and the unit bus 10 is installed on the upper side. The unit bus 10 is installed at a predetermined interval via a height adjuster 35 disposed on the upper side of the suspension base 31.

  A receiving member 32 that receives the heat insulating material 44 is attached to the suspension base 31, and the heat insulating material 44 is filled between the suspension bases 31 on the receiving member 32 and between the foundation 28 and the suspension base 31. The material 44 and the suspension base 31 constitute the lower heat insulating material layer 21.

  On the outer periphery of the installation area of the unit bath 10 where the lower heat insulating material layer 21 is formed, a heat insulating material 45 is disposed so as to surround the four sides, and the outer heat insulating material layer 22 is configured by these heat insulating materials 45. The outer peripheral heat insulating material layer 22 is set to a height that covers the side surface of the bathtub 14 from the lower heat insulating material layer 21 where the bathtub 14 is installed, and from the lower heat insulating material layer 21 where the washing place 15 is installed. The height is set so as to cover the bottom surface of the washing area 15.

  A bathtub heat insulating material 24 is attached to the outer surface of the bathtub 14, and a washing place heat insulating material 25 is attached to the lower surface of the washing place 15. An apron heat insulating material 26 is also attached to the outer surface of the apron 16. The bathtub heat insulating material 24, the washing place heat insulating material 25, and the apron heat insulating material 26 constitute a unit-side heat insulating material layer.

  As a result, the lower heat insulating material layer 21 is disposed on the lower side between the unit bath 10 and the lower heat insulating material layer 21 that are installed on the lower heat insulating material layer 21 at a predetermined interval. A heat insulating air layer 18 surrounded by the layer 22 and further surrounded by the heat insulating material is formed by arranging the unit heat insulating material layer on the upper part. The heat insulation air layer 18 is surrounded by a heat insulating material on the lower side, the periphery, and the upper side, so that dead air exists and functions as a heat insulation layer.

  Here, the bathtub heat insulating material 24, the washing place heat insulating material 25 and the apron heat insulating material 26 constituting the unit side heat insulating material layer are more than the heat insulating materials 44 and 45 constituting the lower heat insulating material layer 21 and the outer peripheral heat insulating material layer 22. The thickness is set to be thin.

  In addition, a windproof sheet 33 is laid so as to cover the seam portions existing at the periphery of the heat insulating materials 44 and 45 constituting the lower heat insulating material layer 21 and / or the outer peripheral heat insulating material layer 22, and a windproof treatment is applied to each seam portion. Has been. Specifically, the joint between the heat insulating material 44 constituting the lower heat insulating material layer 21 and the suspension base 31, the heat insulating material 44 constituting the lower heat insulating material layer 21, and the heat insulating material 45 constituting the outer peripheral heat insulating material layer 22. The joint portions between the heat insulating materials 45 constituting the joint portions between them and the outer peripheral heat insulating material layer 22 are respectively covered with the windproof sheet 33. By doing in this way, it is prevented that the cold air which flows through the lower space 19 penetrate | invades into the heat insulation air layer 18 through the micro clearance gap formed in the said joint part.

  In this example, the unit bath 10 is a three-part type in which the bathtub 14, the washing place 15, and the apron 16 are divided as described above, and a waterproof pan is not installed on the lower side of the bathtub 14, that is, the heat insulating air layer 18. By installing the wall surface 12 in the waterproof bent portion formed on the upper edge of the bathtub 14 on the wall side, waterproofing is performed around the bathtub 14 and water in the bathroom is prevented from entering the heat-retaining air layer 18. ing. Moreover, the joint part of the bent part 17 of the bathtub 14 and the wall surface 12, the joint part of the apron 16 and the bathtub 14, and the joint part of the apron 16 and the washing place 15 are respectively sealed with a sealing member such as a waterproof packing, Water is prevented from entering the insulated air layer 18. In addition, a water stop member 20 as a seal member is disposed around the wall of the washing place 15 to prevent water in the bathroom from entering the heat retaining air layer 18. As described above, the space between the bathtub 14, the apron 16, the washing place 15 and the wall surface is stopped to prevent water in the bathroom from entering the heat insulation air layer 18. Effective thermal insulation performance can be demonstrated without impairing the function.

As the heat insulating material 44 constituting the lower heat insulating material layer 21, a material having water vapor permeability that allows water vapor to pass from the heat insulating air layer 18 toward the lower space 19 below the lower heat insulating material layer 21 is used. Specifically, various kinds of materials such as glass wool, rock wool, ceramic wool, carbon fiber, cellulose wool, wool, and a highly transparent beaded polystyrene foam can be used. As the heat insulating material 44, a material having a moisture permeability resistance of 1 (m ₂ hmmHg / g) or less is suitable.

  Therefore, the lower heat insulating material layer 21 is not covered with the windproof sheet 33, and a portion where the heat insulating material 44 is exposed becomes a ventilation opening, and water vapor escapes from the ventilation opening, thereby preventing condensation in the heat insulating air layer 18. And while maintaining the function as a heat insulation layer of the heat insulation air layer 18, while exhibiting effective heat insulation performance, the damage of building materials is prevented. In this example, the ventilation openings are present at an area ratio of 70% or more of the area of the installation area of the unit bath 10 extending from below the bathtub 14 to below the washing place 15.

  In such a structure, a column-shaped suspension base 31 and a belt-shaped receiving member 32 exist between the heat insulating air layer 18 and the lower space 19, and the heat insulating material 44 is supported by the receiving member 32. Has been. The heat insulating material 44 is a fiber heat insulating material 44 such as glass wool or rock wool. Thus, there is no plate-like structure that cuts off the space between the heat insulation air layer 18 and the lower space 19 below the unit bath 10.

  Next, a method for making the bathroom structure will be described.

  That is, first, the lower heat insulating material layer 21 is disposed at a predetermined interval below the unit bath 10 of the installation portion 47 of the unit bath 10 including the bathtub 14 and the washing place 15. Next, the outer peripheral heat insulating material layer 22 is disposed around the installation portion 47, and the unit bus 10 is installed in the installation portion 47 surrounded by the outer peripheral heat insulating material layer 22. Thereby, between the unit bath 10 and the lower heat insulating material layer 21, the heat insulating air layer 18 that is thermally continuous from the lower part of the bathtub 14 to the lower part of the washing place 15 and is surrounded by the outer peripheral heat insulating material layer 22. Form. Hereinafter, it will be described in detail with reference to the drawings.

  As shown in FIG. 3, the building frame 11 has a base 29 installed on a foundation 28, and a suspension base 31 is stretched over two bases 29 arranged in parallel. The suspension base 31 is configured by attaching engaging members 37 that engage the base 29 to both ends of a columnar support member 38. The hooking member 37 is formed by bending a metal plate set to the same width as the support member 38 into a hook shape. The hook member 37 is hooked on the base 29 and the suspension base 31 is hung on the two bases 29 so that the support member 38 is substantially horizontal at a position lower than the base 29 and at a predetermined height from the ground. Is done.

  As shown in FIG. 4A, the foundation 28 and the base 29 are installed in a rectangular frame shape, and a plurality of (four in this example) suspension bases 31 are hung on the bases 29 located on two opposite sides. hand over. In this state, the support member 38 of each suspension base 31 is set substantially parallel to the other two sides and at the same height.

  FIG. 5 is a cross section in a direction perpendicular to the longitudinal direction of the suspension base 31, and a receiving member 32 that is a receiving material for the heat insulating material 44 is attached to the place where the suspension base 31 is stretched. The receiving member 32 is formed by bending a long and narrow band-shaped metal plate, and is bent in a concave shape between the hooking portion 40 hooked on the base 29, between the base 28 and the suspension base 31, and between the suspension bases 31. A support portion 41 that supports the heat insulating material 44 and a relief portion 42 that is bent in a convex shape along the support member 38 of the suspension base 31 are formed. In this example, five support portions 41 and four escape portions 42 are formed.

  As shown in FIGS. 4A and 4B, a plurality (four in this example) of the receiving members 32 are attached in a direction orthogonal to the suspension base 31. Thereby, a ladder-shaped crosspiece is formed between the foundation 28 and the suspension base 31 and between the suspension bases 31 by the support portion 41 of the receiving member 32.

  As shown in FIGS. 6 and 7, a heat insulating material 44 is filled between the foundation 28 and the suspension base 31 and between the suspension bases 31. In this state, the lower heat insulating material layer 21 is formed by the suspension base 31 and the heat insulating material 44. This lower heat insulating material layer 21 forms a lower space 19 between itself and the ground, and is disposed substantially horizontally in the quadrangular building housing 11. The unit bath 10 is installed on the lower heat insulating material layer 21. It becomes the installation part 47.

  As shown in FIGS. 8A and 8B, the outer peripheral heat insulating material layer 22 is disposed around the installation portion 47 of the unit bus 10. As for the said outer periphery heat insulating material layer 22, the height of the substantially half side in which the bathtub 14 is installed is higher than the remaining substantially half in which the washing place 15 is installed. That is, the heat insulating material 45 arranged on one side facing the side surface of the bathtub 14 is set to a height that covers from the lower heat insulating material layer 21 to the side surface of the bathtub 14 and faces the side surface of the washing place 15 facing this. The heat insulating material 45 arranged on one side is set to a low height that covers from the lower heat insulating material layer 21 to the lower surface of the washing place 15. The remaining heat insulating material 45 arranged on the two sides is a height that covers the bathtub 14 side from the lower heat insulating material layer 21 to the side surface of the bathtub 14, and the washing room 15 side has a low height that covers the lower heat insulating material layer 21 to the lower surface of the washing room 15. It is formed in a step shape.

  As shown in FIG. 9, the heat insulating material constituting the joint between the heat insulating material 44 constituting the lower heat insulating material layer 21 and the suspension base 31, the heat insulating material 44 constituting the lower heat insulating material layer 21, and the outer peripheral heat insulating material layer 22. Windproof sheets 33 are laid on the joints between the heat insulation materials 45 constituting the joints between the heat insulation materials 45 and the outer heat insulation material layer 22.

  As shown in FIG. 1 and FIG. 2, the unit bath 10 including the bathtub 14, the washing place 15, and the apron 16 is installed in the installation portion 47 surrounded by the outer peripheral heat insulating material layer 22 above the lower heat insulating material layer 21. At this time, the height adjuster 35 is installed on the support member 38 of the suspension base 31, and the bathtub 14 and the washing place 15 are supported by the height adjuster 35, and the height of each height adjuster 35 is set. Is adjusted to position the bathtub 14 and the washing area 15 horizontally.

  The height adjuster 35 functions as a spacer capable of installing the bathtub 14 and the washing place 15 on the lower heat insulating material layer 21 at a predetermined interval, and the unit bath 10 including the bathtub 14, the washing place 15 and the apron 16 and the lower insulation. The above-described insulated air layer 18 is secured between the material layer 21 and the material layer 21.

  Thereby, between the unit bath 10 and the lower heat insulating material layer 21, there is a heat insulating air layer 18 that is thermally continuous from below the bathtub 14 to below the washing place 15 and is surrounded by the outer peripheral heat insulating material layer 22. It is formed.

  As described above, in the present invention, between the unit bath 10 and the lower heat insulating material layer 21, it is thermally continuous from the lower part of the bathtub 14 to the lower part of the washing place 15, and the periphery is surrounded by the outer peripheral heat insulating material layer 22. A warm air layer 18 is formed. For this reason, since the said heat insulating air layer 18 functions as a heat insulating layer enclosed by the outer periphery heat insulating material layer 22 and the lower heat insulating material layer 21, the bathtub 14 is effective by presence of the said heat insulating air layer 18 and the lower heat insulating material layer 21. Thus, the temperature of the hot water in the bathtub 14 is prevented from being lowered. Moreover, the washing place 15 is also effectively kept warm by the presence of the heat insulation air layer 18 and the lower heat insulating material layer 21, and the temperature drop of the washing place 15 is prevented. In addition, since the heat retaining air layer 18 is formed from below the bathtub 14 to below the washing place 15, heat transferred from the bathtub 14 to the heat retaining air layer 18 is transmitted below the washing place 15 and from the floor surface. Keep the wash area 15 warm. In this way, a stable heat retaining effect can be obtained not only for the bathtub 14 but also for the entire bathroom including the washing area 15, preventing a temperature drop in the bathtub 14, and saving energy for bathroom heating.

  The lower heat insulating material layer 21 has water vapor permeability that allows water vapor to pass from the heat insulating air layer 18 toward the lower space 19 below the lower heat insulating material layer 21. Is effectively released to the lower space 19 to prevent condensation in the heat insulation air layer 18, without deteriorating the function as the heat insulation layer of the heat insulation air layer 18, and exhibiting effective heat insulation performance, including wood, reinforcing bars, etc. Deterioration of building materials is prevented.

  In addition, since there is no structure for blocking the space between the heat insulation air layer 18 and the lower space 19 below the unit bath 10, maintenance is hindered when the pipes, the bathtub 14, etc. need to be repaired. Therefore, maintenance from under the floor can be easily performed. In addition, since there are few structural bodies that cause disposal problems, such as conventional backing plates, the environmental load is small. In addition, there is no need for on-site construction according to the shape of the backing plate as in the prior art, and the on-site workability and design freedom are improved.

  Moreover, since the windproof process is performed to the seam part which exists in the periphery of the heat insulating materials 44 and 45 which comprise the said lower heat insulating material layer 21 and / or the outer periphery heat insulating material layer 22, the joint of heat insulating materials 44 and 45, The minute gap formed at the joint between the heat insulating materials 44 and 45 and other members is windproofed, and the cold air passing through the lower space flows into the insulated air layer 18 through the minute gap, and the temperature of the insulated air layer 18 decreases. Therefore, the heat retention effect is prevented from being lowered, and a stable heat retention effect can be obtained for the entire bathroom.

  Further, the lower heat insulating material layer 21 has ventilation openings at an area ratio of 70% or more of the installation area of the unit bath 10 extending from the lower part of the bathtub 14 to the lower part of the washing place 15, so that moisture in the heat insulating air layer 18 is absorbed. Since it effectively escapes to the lower space through the ventilation opening, dew condensation is prevented, the function of the heat insulation air layer 18 as a heat insulation layer is not impaired, and deterioration of building materials including wood and reinforcing bars is prevented.

  Moreover, the said bathtub heat insulating material 24, the washing-room heat insulating material 25, and the apron heat insulating material 26 which comprise the said unit side heat insulating material layer are thicker than the heat insulating materials 44 and 45 which comprise the lower heat insulating material layer 21 and the outer periphery heat insulating material layer 22. Therefore, the heat of the bathtub 14 transmitted to the heat insulation air layer 18 is held by the heat insulation air layer 18 and is difficult to escape, and the heat insulation air layer 18 is more effectively kept warm.

  In the above description, the example of the unit bath 10 is a three-part type in which the bathtub 14, the washing area 15, and the apron 16 are divided into three parts. However, the unit bath 10 is not limited to this, and these are integrated. The integrated type can be applied, or other types can be applied.

It is sectional drawing which shows an example of the bathroom structure of this invention. It is a perspective view which shows the said bathroom structure. It is a figure which shows the construction method of the bathroom of this invention. It is a figure which shows the construction method of the bathroom of this invention. It is a figure which shows the construction method of the bathroom of this invention. It is a figure which shows the construction method of the bathroom of this invention. It is a figure which shows the construction method of the bathroom of this invention. It is a figure which shows the construction method of the bathroom of this invention. It is a figure which shows the construction method of the bathroom of this invention. It is sectional drawing which shows a prior art example. It is sectional drawing which shows a prior art example. It is sectional drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Unit bath 11 Building frame 12 Wall surface 14 Bathtub 15 Washing place 16 Apron 17 Bending part 18 Thermal insulation air layer 19 Lower space 20 Water stop member 21 Lower heat insulating material layer 22 Outer peripheral heat insulating material layer 24 Bathtub heat insulating material 25 Washing place heat insulating material 26 Apron heat insulating material 28 Foundation 29 Base 31 Suspension stand 32 Receiving member 33 Windproof sheet 35 Height adjuster 37 Engaging member 38 Bearing member 40 Engaging portion 41 Bearing portion 42 Escape portion 44 Heat insulating material 45 Heat insulating material 47 Installation portion 100 Unit bus 101 Building 102 Wall surface 103 Waterproof pan 104 Bath 105 Thermal insulation space 106 Ventilation hole 107 Receiving plate 108 Outside air temperature space 109 inside the building Thermal insulation material 110 Outer wall 111 Ventilation hole 112 Floor surface

Claims (6)

  A lower heat insulating material layer is disposed below the unit bath including the bathtub and the washing place at a predetermined interval, and is thermally continuous from the lower part of the bathtub to the lower part of the washing place between the unit bath and the lower heat insulating material layer. And a warm air layer surrounded by an outer peripheral heat insulating material layer is formed.   2. The bathroom structure according to claim 1, wherein the lower heat insulating material layer has water vapor permeability that allows water vapor to pass from the heat insulation air layer toward a lower space below the lower heat insulating material layer.   The bathroom structure according to claim 2, wherein there is no structure for blocking between the heat insulation air layer and the lower space below the unit bath.   The bathroom structure according to any one of claims 1 to 3, wherein a windproof treatment is applied to a joint portion present at a peripheral edge of the heat insulating material constituting the lower heat insulating material layer and / or the outer peripheral heat insulating material layer.   The bathroom structure according to any one of claims 1 to 4, wherein the lower heat insulating material layer has ventilation openings at an area ratio of 70% or more of a unit bath installation area extending from below the bathtub to below the washing area.   A lower heat insulating material layer is arranged at a predetermined interval below the unit bath of the installation part of the unit bath including the bathtub and the washing place, and an outer peripheral heat insulating material is arranged around the installation part. By installing the unit bath in the installation section surrounded by the layer, it is thermally continuous from the lower part of the bathtub to the lower part of the washing area between the unit bath and the lower insulating material layer, and the periphery is an outer peripheral insulating material layer. A bathroom construction method characterized by forming an enclosed warm air layer.

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