building

Abstract

The present invention provides a building that allows for a sense of unity between the ceiling surface facing the interior space and the exterior wall surface, while suppressing the concentration of volatile organic compounds within the interior space. [Solution] The building 100 according to this disclosure is a building 100 having an interior space R1 partitioned from other spaces R2, R3, OT by partition members, wherein the partition members constituting the ceiling material CL of the interior space R1 and the outer wall WL1 of the building 100 have cavities sp1, sp3 and two partition members (first partition member wo1, c1 and second partition member wo2, c2) facing each other with the cavities sp1, sp3 in between, and the partition member (first partition member wo1, c1) on the interior space R1 side of the two partition members (first partition member wo1, c1) is capable of adsorbing or decomposing volatile organic compounds through the surface exposed into the cavities, and the moisture permeability of the interior space R1 side surface of the partition member on the interior space R1 side is 1000 [g / m³] 2 The system is characterized by the placement of finishing materials wf and cf with a shelf life of less than 24 hours.

Description

Technical Field

[0001] The present disclosure relates to a building capable of suppressing the concentration of volatile organic compounds in an indoor space.

Background Art

[0002] With the implementation of the amended Building Standards Law related to countermeasures against sick houses, it has become obligatory to control the emission rate of formaldehyde for building materials used in interior finishes. In response, building contractors manage the emission rate of formaldehyde by, for example, performing interior finishes using building materials managed by JIS standards grades (e.g., F☆☆☆☆ (F Foster)).

[0003] Further, Patent Document 1 discloses an interior building material and an interior structure of a building capable of capturing formaldehyde emitted into an indoor space. By adopting such an interior structure, even when a formaldehyde-based adhesive is used in the assembly of building materials, etc., the emitted formaldehyde can be captured and an increase in the indoor formaldehyde concentration can be suppressed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Incidentally, in the interior building materials disclosed in Reference 1, if one attempts to configure the material to capture formaldehyde from the interior space side by placing a moisture-permeable finishing material on the interior space side, the mechanical strength of the moisture-permeable finishing material is insufficient, and it can only be used for ceiling materials that users do not directly touch. Therefore, it was sometimes difficult to achieve a sense of unity in color, pattern, texture, etc., between the ceiling surface and the exterior wall surface within the interior space, and there was still room for improvement in this respect.

[0006] This disclosure has been made in view of these challenges, and its purpose is to provide a building that can suppress the concentration of volatile organic compounds in the interior space while maintaining a sense of unity on the ceiling surface and exterior wall surface facing the interior space. [Means for solving the problem]

[0007] To address the above issues, the building related to this disclosure is: [1] A building having an interior space separated from other spaces by partition members, Among the partition members, the ceiling material including the ceiling of the interior space and the partition members constituting the outer walls of the building have a cavity and two partition members facing each other on either side of the cavity, and the partition member on the interior space side of the two partition members is capable of adsorbing or decomposing volatile organic compounds through the surface exposed into the cavity, and the moisture permeability of the interior space side surface of the partition member on the interior space side is 1000 g / m³ 2 It is characterized by the placement of finishing materials with a shelf life of less than 24 hours.

[0008] Furthermore, the building related to this disclosure is [2] In the configuration described in [1] above, it is preferable that the partition wall among the partition members that separates the interior space from the adjacent interior space has no function of adsorbing or decomposing volatile organic compounds, and that the upper end of the partition wall is configured to end on the lower surface of the ceiling material.

[0009] Furthermore, the building related to this disclosure is [3] In the configuration of [1] or [2] described above, it is preferable that a finishing material of the same pattern and material is placed on the interior space side of the partition member that constitutes the ceiling material and the outer perimeter wall.

[0010] Furthermore, the building related to this disclosure is [4] In the configuration described in [3] above, it is preferable that the interior side of the partition wall that separates the interior space from the adjacent interior space is fitted with a finishing material of the same pattern and material as the ceiling material and the outer perimeter wall. [Effects of the Invention]

[0011] According to this disclosure, it is possible to provide a building that can suppress the concentration of volatile organic compounds in the interior space while maintaining a sense of unity on the ceiling surface and exterior wall surface facing the interior space. [Brief explanation of the drawing]

[0012] [Figure 1] This is a front cross-sectional view showing the schematic configuration of a building according to one embodiment of the present disclosure. [Figure 2] This is a plan cross-sectional view of a cavity portion of the outer wall of a building according to one embodiment of the present disclosure. [Modes for carrying out the invention]

[0013] The present disclosure will be described in more detail below with reference to the drawings.

[0014] Figure 1 is a front cross-sectional view showing the schematic configuration of a building 100 according to one embodiment of the present disclosure. First, the overall configuration of the building 100 will be described. The building 100 shown in Figure 1 is a two-story industrialized house with a steel frame structure.

[0015] In addition, the "volatile organic compounds" described in the specification of this application and the claims shall include volatile organic compounds (VOCs), formaldehyde, and other carbonyl compounds of building materials that are target chemical substances in JIS A 1901:2015.

[0016] The building 100 includes a reinforced concrete foundation structure 1 fixed to the ground GL, and a frame structure composed of frame members such as column members and beam members, and an upper structure 2 fixed to the foundation structure 1. The frame members constituting the frame structure are standardized (standardized), manufactured in a factory in advance, and then transported to the construction site for assembly.

[0017] The foundation structure 1 is located below the frame structure and supports the frame structure. Specifically, the foundation structure 1 includes a peripheral foundation beam 10 and a footing 12 made of reinforced concrete. The foundation structure 1 is buried in the ground GL and may further include a pile body arranged to abut against the bottom surface of the footing 12. In addition, a column base fixing portion for fixing the column base of the column member of the frame structure by an exposed type fixed column base method is provided at the upper end portion of the peripheral foundation beam 10, and anchor bolts protrude from the upper surface of the peripheral foundation beam 10. In addition to the function of dispersing and transmitting the vertical load from the frame structure of the upper structure 2 to the ground GL, the foundation structure has the function of supporting exterior members and floor members in the upper structure 2.

[0018] The peripheral foundation beam 10 is made of reinforced concrete, is located below the upper structure 2, and supports the upper structure 2. In addition, below the peripheral foundation beam 10, a footing 12 made of reinforced concrete, which is integrally formed with the peripheral foundation beam 10 and transmits the load of the building 100 to the ground GL, is provided.

[0019] The upper structure 2 includes a frame structure composed of a plurality of column members and a plurality of beam members installed between the column members, an outer peripheral wall WL1 arranged on the outer peripheral portion of this frame structure, a ceiling material CL located between floors and separating the space between floors into an upper floor indoor space and a lower floor indoor space, and a partition wall WL2 partitioning an adjacent indoor space as another space R2 adjacent to the indoor space R1.

[0020] The outer perimeter wall WL1 includes an exterior member, an insulation member, and an interior member. The exterior member can be made of panels of, for example, autoclaved light weight concrete (hereinafter referred to as "ALC," which is an abbreviation for "autoclaved light weight concrete"). By connecting multiple ALC panels around the frame structure, the outer layer of the outer perimeter wall WL1 (the exterior panel wp of the second partition member wo2 in the example of Figure 1) can be formed. The insulation member is, for example, the insulation material hw that constitutes the second partition member wo2 in the example of Figure 1, and can be made of foamed resin materials such as phenol foam, polystyrene foam, or urethane foam. The interior member is, in the example of Figure 1, the first partition member wo1 that constitutes the outer perimeter wall WL1, and can be made of, for example, a functional building material that has an effect of reducing volatile organic compounds, or a member in which a functional sheet that has an effect of reducing organic compounds is attached to the outer surface of a gypsum board.

[0021] The outer perimeter wall WL1 is a partitioning member that separates the interior space R1 (described later) from the other space OT (the space outside the outer perimeter wall WL1 of the building 100). As shown in Figure 1, the outer perimeter wall WL1 comprises a first partitioning member wo1 facing the interior space R1, a second partitioning member wo2 facing the other space OT, and a cavity sp1 which is the space formed by the first partitioning member wo1 and the second partitioning member wo2. The first partitioning member wo1 and the second partitioning member wo2 are provided facing each other with the cavity sp1 in between.

[0022] In this embodiment, the first partition member wo1 of the outer perimeter wall WL1 refers to the portion of the partition member that is on the side of the interior space R1 that is closer to the cavity sp1. Similarly, the second partition member wo2 refers to the portion of the partition member that is on the opposite side of the cavity sp1 that is closer to the interior space R1. Therefore, in this embodiment, the outer perimeter wall WL1 is composed of two partition members (the first partition member wo1 and the second partition member wo2) and the cavity sp1.

[0023] As shown in Figure 1, the building 100 according to this embodiment includes an interior space R1. Interior space R1 is partitioned from other spaces R2, R3 and OT by partitioning members. Other space R2 is an interior space adjacent to interior space R1 and is partitioned from interior space R1 by a partition wall WL2, which is a partitioning member. Other space R3 is an interior space located above interior space R1 and is partitioned from interior space R1 by a ceiling material CL, which is a partitioning member. Other space OT is an exterior space of building 100 as described above and is partitioned from interior space R1 by an outer perimeter wall WL1, which is a partitioning member.

[0024] In this embodiment, the first partition member wo1 of the outer perimeter wall WL1 can be made of, for example, a functional building material that has an effect of reducing volatile organic compounds. Examples of functional building materials used for the first partition member wo1 include building materials that enhance the capture performance of aldehydes such as formaldehyde and other volatile organic compounds by incorporating hydrazide compounds, or Tiger High Clean Board (registered trademark) manufactured by Yoshino Gypsum Co., Ltd. Other building materials with adsorption or decomposition properties for volatile organic compounds other than those mentioned above may also be used. Furthermore, the first partition member wo1 may be made by attaching a sheet-like member with adsorption or decomposition properties for volatile organic compounds to at least the outer surface (the surface facing the cavity sp1) of a gypsum board, thereby ensuring adsorption or decomposition of volatile organic compounds on the outer surface. In other words, the first partition member wo1 can be made of a functional building material or other member capable of adsorbing or decomposing volatile organic compounds through its outer surface (the surface facing the cavity sp1).

[0025] In addition to the first partition member wo1, functional building materials may also be used for the second partition member wo2, which faces the first partition member wo1 across the cavity sp1. When functional building materials are used for the second partition member wo2, it is preferable to configure it so that volatile organic compounds can be adsorbed or decomposed from the cavity sp1 side of the second partition member wo2.

[0026] In this embodiment, a finishing material wf with poor moisture permeability is provided on the interior space R1 side of the first partition member wo1. By providing such a finishing material wf, the first partition member wo1 does not exhibit the function of adsorbing or decomposing volatile organic compounds through the surface facing the interior space R1. Furthermore, as will be described later, volatile organic compounds in the interior space R1 are adsorbed or decomposed from the cavity sp1 side of the first partition member wo1 as air flows through the gap in the first partition member wo1 between the interior space R1 and the cavity sp1.

[0027] The gaps in the first partition member wo1 include, for example, gaps in the gypsum board surface caused by the installation of switches, outlets, and lighting fixtures, or gaps between functional building materials when the first partition member wo1 is composed of multiple rectangular functional building materials. In addition to the gaps in the first partition member wo1, ventilation openings such as louvers for the interior wall may be provided in the first partition member wo1 to promote air circulation between the interior space R1 and the cavity sp1.

[0028] The material used for the finishing material wf has a moisture permeability of 1000 g / m². 2 Materials with a moisture content of less than 24 hours are used. Examples of finishing materials with poor breathability (low moisture permeability) include vinyl wallpaper. The moisture permeability referred to here is the value measured using the measurement method specified in the moisture permeability test method (cup method) for moisture-proof packaging materials (JIS Z 0208).

[0029] Generally, finishing materials with high moisture permeability that can be used on room walls have a more limited range of colors, materials, and patterns compared to finishing materials with poor breathability. As far as the applicant has investigated, finishing materials with high moisture permeability (moisture permeability of 1000 g / m³) are available. 2The materials with a moisture permeability of 24 hours or more are limited to cotton nonwoven fabric manufactured by Tokiwa Sangyo Co., Ltd. (product name: Cotton Sofina®), breathable wallpaper manufactured by Sangetsu Co., Ltd. (made of vinyl chloride), breathable wallpaper manufactured by Sincol Co., Ltd. (made of vinyl chloride), breathable wallpaper manufactured by Runon Co., Ltd. (made of vinyl chloride), and woven fabric manufactured by Kyokuso Co., Ltd. (product name: No Yellow®). Furthermore, as mentioned above, from the viewpoint of mechanical strength, etc., finishing materials with high moisture permeability can only be used for ceiling materials CL that are not directly touched by residents. Therefore, it was sometimes difficult to unify the finishing materials wf and cf used for the outer perimeter wall WL1 and the ceiling material CL within the interior space R1, or to intentionally combine different colors. In this embodiment, the finishing material wf placed on the interior space R1 side of the first partition member wo1 that constitutes the outer perimeter wall WL1, and the finishing material cf placed on the interior space R1 side of the first partition member c1 that constitutes the ceiling material CL, both have a moisture permeability of 1000 g / m³. 2 It is composed of finishing materials with a shelf life of less than 24 hours. Therefore, it is easy to unify the finishing material wf of the exterior wall WL1 and the finishing material cf of the ceiling material CL with the same pattern and / or the same material, or unify them with the same color, or intentionally combine different colors.

[0030] In this embodiment, the second partition member wo2 is made of a material that has the same volatile organic compound reduction effect as the first partition member wo1 described above. However, the embodiment is not limited to this, and the second partition member wo2 may be made of a material that does not have a volatile organic compound reduction effect.

[0031] The cavity sp1 is a space formed by a first partition member wo1 and a second partition member wo2 arranged opposite each other, and in this embodiment, it constitutes an air circulation path. The first partition member wo1 of the outer peripheral wall WL1 is provided with a gap (not shown) that connects the interior space R1 and the cavity sp1. In this embodiment, as shown in Figure 1, the cavity sp1 of the outer peripheral wall WL1 is in communication with the cavity sp3 of the ceiling material CL, which will be described later, at its upper end. The white arrow drawn at the boundary between the cavity sp1 of the outer peripheral wall WL1 and the cavity sp3 of the ceiling material CL in Figure 1 indicates that air can circulate between the cavities sp1 and sp3.

[0032] In this embodiment, the cavity sp1 continuously surrounds the interior space R1 in a plan view. That is, the cavity sp1 surrounds the interior space R1 without interruption in a plan view. Figure 2 shows the arrangement of the base material bm supporting the first partition member wo1 and the second partition member wo2 in a plan view of the building 100 according to this embodiment. For example, as shown in Figure 2, by arranging the base material bm so that it does not spread in the width direction of the cavity sp1, the cavity sp1 can be made to continuously surround the interior space R1 in a plan view. This can promote the circulation of air within the cavity sp1.

[0033] In Figure 2, it is preferable that the base material bm supporting the first partition member wo1 and the second partition member wo2 of the outer perimeter wall WL1 contains steel material. With this configuration, volatile organic compounds are less likely to be released from the base material bm, and thus the increase of volatile organic compounds can be suppressed in the building 100 according to this disclosure. Furthermore, it is preferable that the framing structure other than the base material bm contained within the partition members also contains steel material for the same reason.

[0034] The base panel for fixing the first partition member wo1 and the second partition member wo2 to the base material bm is often made of wood due to its cost advantages and ease of processing. This is also true for the base panel supporting the first partition member c1 of the ceiling material CL. Therefore, by placing the first partition member wo1, etc., which is capable of adsorbing or decomposing volatile organic compounds, near the wooden base panel, which is a source of formaldehyde emission, formaldehyde and other compounds emitted into the cavity sp1 can be efficiently absorbed. Note that the base panel does not necessarily have to be made of wood and may include steel materials.

[0035] In this embodiment, the second partition member wo2 of the outer perimeter wall WL1 is equipped with an insulating material hw and an exterior panel wp, in that order from the side closest to the cavity sp1. The exterior panel wp is made of ALC panel and is fixed to the frame structure. The cavity sp1 is located on the interior space R1 side of the insulating material hw. In this embodiment, the insulating material hw mainly suppresses the release of heat from the interior space R1 to the outside space.

[0036] The ceiling material CL includes the ceiling of the interior space R1 and is a partitioning member that separates the interior space R1 from another space R3. As shown in Figure 1, the ceiling material CL comprises a first partitioning member c1 facing the interior space R1, a second partitioning member c2 located on the opposite side of the interior space R1, and a cavity sp3 formed by the first partitioning member c1 and the second partitioning member c2. The first partitioning member c1 and the second partitioning member c2 are provided facing each other with the cavity sp3 in between.

[0037] In this embodiment, the first partition member c1 can be made of a functional building material or the like that capable of adsorbing or decomposing volatile organic compounds through at least its outer surface (the surface facing the cavity sp3), similar to the first partition member wo1 of the outer perimeter wall WL1. The first partition member c1 is attached to the base material together with a wooden base panel, similar to the outer perimeter wall WL1. The wooden base panel can be a source of formaldehyde emission, but in this embodiment, adsorption or decomposition of volatile organic compounds is possible from the side of the first partition member c1 facing the cavity sp3. Therefore, formaldehyde can be efficiently adsorbed or decomposed.

[0038] In this embodiment, the second partition member c2 comprises a ceiling panel cp, an insulating material hc, and a floor member ff, starting from the side closest to the cavity sp3. The ceiling panel cp is formed of ALC panel, similar to the exterior panel wp of the outer wall WL1, and is fixed to the framing structure (e.g., beams). The cavity sp3 is located on the interior space R1 side of the insulating material hc.

[0039] In this embodiment, the first partition member c1 has a moisture permeability of 1000 g / m³ on the interior space R1 side. 2 A finishing material cf with a shelf life of less than 24 hours is provided. By providing such a finishing material cf, the adsorption or decomposition of volatile organic compounds from the interior space R1 side by the first partition member c1 is suppressed. Furthermore, by circulating air between the interior space R1 and the cavity sp3 through the gap in the first partition member c1, volatile organic compounds in the interior space R1 are adsorbed or decomposed from the cavity sp3 side of the first partition member c1.

[0040] The gaps in the first partition member c1 include, for example, gaps in the gypsum board surface caused by the installation of lighting fixtures, or gaps between functional building materials when the first partition member c1 is composed of multiple rectangular functional building materials.

[0041] The cavity sp3 is a space formed by the first partition member c1 and the second partition member c2, which are arranged opposite each other, and in this embodiment it constitutes an air circulation path. In this embodiment, the cavity sp3 of the ceiling material CL is in communication with the cavity sp1 of the outer peripheral wall WL1 described above, as shown in Figure 1.

[0042] Although the ceiling material CL has been described as a partitioning member that separates the interior space R1 from another space R3, the configuration is not limited to this, and the ceiling material CL may also include roofing material (not shown in Figure 1). That is, a member constituting the roof may be adopted as the second partitioning member c2 in Figure 1, and a cavity sp3 may be provided between the roofing member and the first partitioning member c1. In this case, it is preferable that the roofing member includes thermal insulation. In this case, the ceiling material CL becomes a partitioning member that separates the interior space R1 from the space above the roof.

[0043] In this embodiment, for example, if the temperature inside the indoor space R1 is higher than the temperature inside the cavities sp1 and sp3 (such as when the indoor space R1 is heated by a heater in winter), the heated air inside the indoor space R1 rises and flows out into the cavities sp3 through the gap provided in the first partition member c1 of the ceiling material CL. In addition to the gap in the first partition member c1, a louver for ceiling ventilation may be provided in the first partition member c1 to promote air circulation between the indoor space R1 and the cavities sp3. The air that flows out into the cavities sp3 flows into the cavities sp1 of the outer wall WL1, cools, and descends. As air flows into the cavity sp3 of the ceiling material CL and descends into the cavity sp1 of the outer wall WL1, it comes into contact with the outer surface (the surface on the side of the cavity sp3, sp1) of the first partition members c1, wo1. This allows the first partition members c1, wo1 to reduce formaldehyde and other volatile organic compounds released into the air from the wooden base panel, etc., by adsorbing or decomposing these compounds.

[0044] On the other hand, if the temperature inside the indoor space R1 is lower than the temperature inside the cavities sp1 and sp3 (for example, when the indoor space R1 is cooled by air conditioning in the summer), the air that flows out into the cavity sp1 through the gap in the first partition member wo1 of the outer wall WL1 is heated inside the cavity sp1 and rises. The air that rises inside the cavity sp1 flows into the cavity sp3 of the ceiling material CL, is cooled as it flows in a substantially horizontal direction along the first partition member c1, and flows into the indoor space R1 through the gap provided in the first partition member c1. The air that flows out into the cavity sp1 through the gap in the first partition member wo1 of the outer wall WL1 comes into contact with the outer surface of the first partition members wo1 and c1 (the surface on the side of the cavities sp1 and sp3), and formaldehyde and other substances emitted into the air from the wooden base panel, etc. can be reduced by the function of the first partition members wo1 and c1 to adsorb or decompose volatile organic compounds.

[0045] As described above, the first partition members wo1 and c1 of the outer perimeter wall WL1 and ceiling material CL have the effect of reducing volatile organic compounds by adsorbing or decomposing them through their outer surfaces facing at least the cavities sp1 and sp3. Therefore, as in this embodiment, even when finishing materials wf and cf with poor moisture permeability are used on the inner surfaces of the first partition members wo1 and c1 facing the interior space R1, it is possible to reduce the amount of volatile organic compounds contained in the air when the air from the interior space R1 flows out into the cavities sp1 and sp3. Thus, the range of choices regarding the color and material of the finishing materials wf and cf used on the inner surfaces of the outer perimeter wall WL1 and ceiling material CL facing the interior space R1 can be broadened.

[0046] Furthermore, the first partition members wo1 and c1 may be provided with adsorption or decomposition properties for volatile organic compounds, and at the same time, members that adsorb or decompose volatile organic compounds may be placed in the cavities sp1 and sp3. This makes it possible to more effectively reduce volatile organic compounds in the air flowing through the cavities sp1 and sp3.

[0047] Furthermore, as in this embodiment, since low moisture permeability finishing materials wf and cf can be used on the inner surfaces of the first partition members wo1 and c1 facing the indoor space R1, it is possible to suppress the direct re-release of volatile organic compounds adsorbed within the first partition members wo1 and c1 into the indoor space R1.

[0048] Furthermore, the first partition members wo1 and c1 adsorb or decompose volatile organic compounds through their outer surfaces facing the airflow cavities sp1 and sp3. By increasing the airflow on these outer surfaces, the amount of volatile organic compounds in the air can be effectively reduced.

[0049] The partition wall WL2 is a partitioning member that separates the interior space R1 from another space R2. As shown in Figure 1, the partition wall WL2 comprises a first partition member wd1 facing the interior space R1, a second partition member wd2 facing the other space R2, and a cavity sp2 which is the space formed by the first partition member wd1 and the second partition member wd2. The first partition member wd1 and the second partition member wd2 are provided facing each other with the cavity sp2 in between.

[0050] In this embodiment, the first partition member wd1 of the partition wall WL2 refers to the portion of the partition member that is on the side of the interior space R1 that is closer to the cavity sp2. Similarly, the second partition member wd2 refers to the portion of the partition member that is on the opposite side of the cavity sp2 that is closer to the interior space R1. Therefore, in this embodiment, the partition wall WL2 is composed of two partition members (the first partition member wd1 and the second partition member wd2 in this embodiment) and the cavity sp2.

[0051] In this embodiment, the first partition member wd1 and the second partition member wd2 of the partition wall WL2 do not have an effect of reducing volatile organic compounds. The first partition member wd1 and the second partition member wd2 of the partition wall WL2 are not fixed to a wooden base panel, but are fixed to a steel base, so there are fewer sources of formaldehyde emission than the outer wall WL1 and the ceiling material CL. In addition, the partition wall WL2 often adopts a ceiling-dominant configuration in which the upper end of the partition wall WL2 terminates on the lower surface of the ceiling material CL in order to easily accommodate changes in the room layout (see Figure 1), and in many cases air circulation through the cavity sp2 cannot be expected. Therefore, in this embodiment, the first partition member wd1 and the second partition member wd2 of the partition wall WL2 do not use functional building materials that can adsorb or decompose volatile organic compounds, which are more expensive than ordinary gypsum board.

[0052] Furthermore, at least one of the first partition member wd1 and the second partition member wd2 of the partition wall WL2 may be made of a functional building material capable of adsorbing or decomposing volatile organic compounds. Also, the cavity sp2 of the partition wall WL2 may be in communication with the cavity sp3 of the ceiling material CL. Alternatively, the partition wall WL2 may not have a cavity sp2, and the first partition member wd1 and the second partition member wd2 may be directly bonded together, or only one of the first partition member wd1 or the second partition member wd2 may be provided.

[0053] The finishing material wf2 for partition wall WL2 also has a moisture permeability of 1000 g / m³, similar to the finishing material wf for exterior wall WL1 and the finishing material cf for ceiling material CL. 2 The finishing materials may be made up of materials with a shelf life of less than 24 hours. This configuration makes it easier to unify the finishing materials wf, wf2, and cf for the exterior walls WL1, ceiling material CL, and partition walls WL2 with the same pattern and / or material, or with the same color, or to intentionally combine different colors.

[0054] In this embodiment, the outer perimeter wall WL1, ceiling material CL, and partition wall WL2 were described as partitioning members that separate the indoor space R1 from other spaces R2, R3, and OT. However, other partitioning members that separate other spaces include floor material FL. For example, the floor material FL in Figure 1 may be used as the first partitioning member, and a member that acts as a second partitioning member may be placed below the floor material FL, with the space between the floor material FL and the newly added member being configured as a cavity to allow air to circulate within the indoor space R1. In this case, the floor material FL may also be given the function of adsorbing or decomposing volatile organic compounds. Alternatively, the space between the floor material FL and the ground GL in Figure 1 may be used as a cavity.

[0055] As described above, this embodiment is a building 100 having an interior space R1 partitioned from other spaces R2, R3, OT by partitioning members, wherein the partitioning members, including the ceiling material CL of the interior space R1 and the outer wall WL1 of the building 100, have cavities sp1, sp3 and two partition members (first partition member wo1, c1 and second partition member wo2, c2) facing each other with the cavities sp1, sp3 in between, and the partition member (first partition member wo1, c1) on the interior space R1 side of the two partition members (first partition member wo1, c1 and second partition member wo2, c2) can adsorb or decompose volatile organic compounds through the surface exposed into the cavities sp1, sp3, and the moisture permeability of the interior space R1 side surface of the partition member (first partition member wo1, c1) on the interior space R1 side has a moisture permeability of 1000 [g / m³]. 2 The structure is configured so that finishing materials wf and cf with a moisture content of less than 24h are placed. By adopting this configuration, air in the indoor space R1 reaches the surface of the partition members (first partition members wo1 and c1) on the sp1 and sp3 side of the partition members (first partition members wo1 and c1) via the gaps and cavities sp1 and sp3, and volatile organic compounds can be adsorbed or decomposed from the surface of the partition members (first partition members wo1 and c1) on the sp1 and sp3 side of the partition members (first partition members wo1 and c1). In addition, the surface of the partition members (first partition members wo1 and c1) on the indoor space R1 side has a moisture permeability of 1000 g / m³. 2Since the finishing materials wf and cf have a moisture content of less than 24h, the freedom to select the color, material, and pattern of the finishing materials wf and cf is increased. Therefore, it is easy to unify the finishing material wf of the exterior wall WL1 and the finishing material cf of the ceiling material CL with the same pattern and / or material, unify them with the same color, or intentionally combine different colors. Furthermore, because the moisture permeability of the finishing materials wf and cf is low, it is possible to suppress the re-release of volatile organic compounds adsorbed in the first partition members wo1 and c1 directly into the indoor space R1.

[0056] Furthermore, in this embodiment, among the partition members, the partition wall WL2 that separates the interior space R1 from the adjacent interior space (another space R2) adjacent to interior space R1 does not have the function of adsorbing or decomposing volatile organic compounds, and is configured such that the upper end of the partition wall WL2 terminates on the lower surface of the ceiling material CL, thus creating a ceiling-dominant configuration. By adopting such a configuration, it is possible to effectively adsorb or decompose formaldehyde in the vicinity of the outer wall WL1 and the ceiling material CL, where wooden base panels are easily placed, while reducing the amount of functional building materials used.

[0057] Furthermore, in this embodiment, the partition members constituting the ceiling material CL and the outer wall WL1 are configured to have finishing materials wf and cf of the same pattern and material on the side facing the interior space R1. By adopting this configuration, it is possible to effectively reduce formaldehyde and other substances in the interior space R1 while maintaining a sense of unity between the finishing materials wf and cf of the outer wall WL1 and the ceiling material CL.

[0058] Furthermore, in this embodiment, among the partition members, the partition wall WL2 that separates the interior space R1 from the adjacent interior space (another space R2) adjacent to the interior space R1 is configured such that the surface facing the interior space R1 is fitted with a finishing material of the same pattern and material as the ceiling material CL and the exterior wall WL1. By adopting this configuration, it is possible to effectively reduce formaldehyde and other substances within the interior space R1 while maintaining a sense of unity among the finishing materials wf, cf, and wf2 of the exterior wall WL1, ceiling material CL, and partition wall WL2.

[0059] While this disclosure has been described based on the drawings and embodiments, it should be noted that those skilled in the art will find it easy to make various modifications or alterations based on this disclosure. Therefore, it should be noted that these modifications or alterations fall within the scope of the present invention. For example, the functions included in each component can be rearranged in a logically consistent manner, and multiple components can be combined into one or separated.

[0060] For example, although the building 100 in this embodiment has been described as a two-story industrialized house, it is not limited to this form and may be a one-story or a house with three or more stories.

[0061] Furthermore, in this embodiment, functional building materials capable of adsorbing or decomposing volatile organic compounds are used for all first partition members wo1,c1 of the outer perimeter wall WL1 and ceiling material CL, but the embodiment is not limited to this. Functional building materials capable of adsorbing or decomposing volatile organic compounds are not necessarily used for all first partition members wo1,c1 of the outer perimeter wall WL1 and ceiling material CL. Also, functional building materials capable of adsorbing or decomposing volatile organic compounds may be used for at least some of the first partition members wd1 of the partition wall WL2. [Explanation of Symbols]

[0062] 1 Basic structure 2 Superstructure 10 Perimeter foundation beam 12 Footing 100 buildings CL ceiling material FL flooring GL ground OT Other spaces R1 Interior Space R2 Other space (adjacent indoor space) R3 Other spaces WL1 Outer wall WL2 partition wall bm underlayment c1 First partition member c2 Second partition member CF finishing material CP ceiling panel ff Floor parts HC insulation material HW insulation wo1,wd1 First partition member wo2,wd2 Second partition member sp1,sp2,sp3 Cavity WF, WF2 finishing materials wp exterior panels

Claims

1. A building having an interior space separated from other spaces by partition members, Among the partition members, the ceiling material including the ceiling of the interior space and the partition members constituting the outer walls of the building have a cavity and two partition members facing each other on either side of the cavity, and the partition member on the interior space side of the two partition members is capable of adsorbing or decomposing volatile organic compounds through the surface exposed into the cavity, and the moisture permeability of the interior space side surface of the partition member on the interior space side is 1000 [g / m³] ２ A building in which finishing materials with a minimum 24-hour (24-hour) duration are applied.

2. The building according to claim 1, wherein, among the partition members, the partition wall that separates the interior space from the adjacent interior space adjacent to the interior space does not have the function of adsorbing or decomposing volatile organic compounds, and the upper end of the partition wall is configured to end on the lower surface of the ceiling material.

3. The building according to claim 1 or 2, wherein a finishing material of the same pattern and material is arranged on the interior space side of the partition member that constitutes the ceiling material and the outer perimeter wall.

4. The building according to claim 3, wherein, among the partition members, a finishing material of the same pattern and material as the ceiling material and the outer perimeter wall is arranged on the side of the partition wall that separates the interior space from an adjacent interior space adjacent to the interior space.

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