Balcony rainproofing structure

Abstract

To be able to prevent rainwater infiltration from non-installed areas of interior wall panels in a handrail section, mainly.SOLUTION: This invention relates to a temporary weathering structure for a balcony 2. A balcony 2 is provided with a floor section 11 and a handrail section 12 attached to an edge 11a of the floor section 11 that is not in contact with a building 1. The handrail section 12 comprises an inner wall 13 and an outer wall 14. The handrail section 12 comprises a non-installed portion 17 around an edge 16 on the building 1 side, where one interior wall panel 15 is not installed. The interior wall panel non-installed portion 17 is sealed with a temporary weathering sheet 18.SELECTED DRAWING: Figure 4A

Description

[Technical Field]

[0001] The present invention relates to a temporary weatherproofing structure for a balcony. [Background technology]

[0002] BACKGROUND ART Balconies are attached to buildings such as houses (see, for example, Patent Document 1).

[0003] The balcony has a floor and a handrail attached to the side of the floor that is not in contact with the building. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-286866 Summary of the Invention [Problem to be solved by the invention]

[0005] Balconies are manufactured to a nearly complete state in a factory, then transported to the construction site, where they are attached to the building in one go.

[0006] In this case, the balcony could be left in a completed state, but if it were completed, at least a portion of the balcony would have to be disassembled to, for example, attach hoisting equipment for transportation or lifting, or to connect the waterproofing structure on the building side to the waterproofing structure on the balcony side when attaching it to the building. Therefore, to avoid the trouble of disassembling part of the balcony, at least the part of the balcony closest to the building is intentionally left in an unfinished state, just short of completion.

[0007] However, the unfinished parts of the balcony did not yet have a waterproof structure, so when the balcony was transported to the construction site during rainfall or when it was attached to the building at the construction site, rainwater would seep into the balcony through the unfinished parts, causing problems.

[0008] Therefore, a main object of the present invention is to contribute to improving the above-mentioned problems. [Means for solving the problem]

[0009] In response to the above problems, the present invention provides: a balcony having a floor and a handrail attached to an edge of the floor that is not in contact with the building; The handrail portion has an inner wall and an outer wall, The handrail portion has an interior wall panel non-installed portion in which only one interior wall panel is not attached around the end portion on the building side, The areas where the interior wall panels are not installed are covered with temporary rainproof sheets. And, The interior wall panel non-installation portion is a rectangular frame portion surrounded by a pair of handrail posts and upper and lower furring strips installed between the upper and lower ends of the pair of handrail posts, The pair of handrail posts are end posts installed at the end of the handrail section that abuts against the building, and an intermediate post adjacent to the end post, The temporary rainproof sheet is rectangular and is attached to the frame portion with airtight waterproof tape. It features a temporary rainproof structure for the balcony. [Effects of the Invention]

[0010] According to the present invention, with the above configuration, The temporary rainproof sheet is easily attached with airtight waterproof tape to the rectangular frame area surrounded by a pair of handrail posts (end posts and middle posts) and the upper and lower furring strips. Handrail section Around the handrail post (end post) that abuts against the building at the end of the building This can prevent rainwater from entering through areas where the interior wall panels are not installed. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a plan view of a building (unit building) for explaining a temporary weatherproofing structure for a balcony according to the present embodiment. FIG. [Figure 2] This is an overall perspective view of the balcony in a lifted state. [Figure 3] A longitudinal cross-sectional view of a balcony. [Figure 4A] This is an enlarged oblique view of the portion of the balcony handrail where no interior wall panel is installed, located around the end facing the building. [Figure 4B] 4B is a vertical cross-sectional view of an upper portion (viewed from the arrow AA) of a portion where no interior wall panel is installed in FIG. 4A. [Figure 4C] 4B is a cross-sectional view of the upper part of the interior wall panel non-installed portion of FIG. 4A, where (a) is the upper left part (viewed from the arrow BB) and (b) is the upper right part (viewed from the arrow CC). [Figure 4D] 4B is an enlarged perspective view of a lower corner of the portion where no interior wall panel is installed in FIG. 4A. Of these, (a) is the lower left portion (portion D), and (b) is the lower right portion (portion E). [Figure 5] FIG. 10 shows the state in which the balcony is fixed to the building unit on the lower floor. [Figure 6] This is an oblique view showing the waterproofing structure (full-scale rainproofing structure) for the upper part of the balcony handrail. [Figure 7] FIG. 2 is a perspective view showing the waterproof structure of the building unit. [Figure 8] FIG. 10 is a perspective view showing the state in which the waterproof structure of the building unit and the waterproof structure of the balcony are connected. [Figure 9] 10 is a perspective view showing the state in which an interior wall panel is attached to a non-installed portion of the interior wall panel. FIG. [Figure 10] This is an enlarged view of the ceiling of the building installed below the balcony. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, this embodiment will be described in detail with reference to the drawings. 1 to 10 are used to explain this embodiment. [Example]

[0013] <Configuration> The configuration of this embodiment will now be described.

[0014] Fig. 1 is a plan view of a building 1. The building 1 has a balcony 2 (Figs. 2 and 3).

[0015] The building 1 can be a detached house, an apartment building, etc. The building 1 may have any structure, but is, for example, a unit building.

[0016] A unit building is a building 1 that can be constructed in a short period of time by manufacturing box-shaped (rectangular) building units 3 in advance in a factory, transporting them to the construction site, and assembling and installing them at the construction site. There are various types of building units 3, including full-size and half-size. In the illustration, the single building unit 3 on the left is full-size, and the two building units 3 on the right are half-size.

[0017] A unit building becomes multi-story by placing an upper floor building unit 3 on top of a lower floor building unit 3. In the figure, the upper floor building unit 3 is placed in an L-shape and together with the lower floor building unit 3, forms the main body of the building 1 (building main body).

[0018] The balcony 2 is an accessory to the building 1 that is installed on the outside of the main body of the building 1. The balcony 2 is installed at a relatively high position, such as on an upper floor of the building 1, so that it protrudes outward from the building 1. Most balconies 2 are installed in a position facing an opening on an upper floor, but they can also be installed on a wall without an opening. There are various sizes of balconies 2, such as small ones such as flower balconies where plants are placed outside the window, and large ones that allow access from indoors to outdoors, and all of these can be broadly included in the term balcony 2.

[0019] The balcony 2 in this embodiment is large, and is installed so that two sides of the balcony 2 in the figure are in contact with the building units 3 on the upper floor, which are arranged in an L-shape. This balcony 2 has approximately the same size and planar shape as the full-size building units 3, and is installed side by side at approximately the same height as the building units 3 on the upper floor, so that the planar shape of the upper floor is approximately rectangular.

[0020] However, the arrangement of the unit buildings and the shape, size, and position of the balcony 2 are not limited to those described above, and the balcony 2 may, for example, be smaller, larger, or different in plan view than the building unit 3. As described above, the balcony 2 may be called something other than a "balcony," regardless of size or type, as long as it has a structure to which the configuration of this embodiment can be applied. For example, a front porch with surrounding walls has a similar structure, and can therefore be included in the balcony 2 of this embodiment. Alternatively, the balcony 2 may be referred to as a building overhang with surrounding walls, but for ease of understanding, it is referred to as a balcony 2 in this embodiment.

[0021] Note that the balcony 2 may have a building unit 3 on a lower floor below it, or may not have a building unit 3 on a lower floor below it, and either case is acceptable. In this example, a building unit 3 exists on a lower floor. The building 1 mainly refers to only the main part excluding the balcony 2, but may also broadly include the balcony 2.

[0022] In addition to the basic configuration described above, this embodiment may also have the following configuration.

[0023] (1) A balcony 2 is provided, which has a floor portion 11 and a handrail portion 12 attached to an edge 11a of the floor portion 11 that does not contact the building 1. As shown in FIG. 2 (FIG. 3), the handrail portion 12 has an inner wall 13 and an outer wall 14.

[0024] The temporary rainproofing structure for balcony 2 is as follows: The handrail section 12 has an interior wall panel non-installed section 17 around the end section 16 on the building 1 side, where one interior wall panel 15 is not attached. The interior wall panel non-installed portion 17 is covered with a temporary rainproof sheet 18.

[0025] Here, the temporary weatherproofing structure of the balcony 2 is a structure that temporarily protects the balcony 2 (which has been assembled in a nearly completed state) from rainwater 21 (Figure 3) before and after it is attached to the building 1. This makes it possible to transport the balcony 2 from the factory to the construction site and attach it to the building 1, even during rainfall. In contrast, permanent weatherproofing refers to the continuous protection of the balcony 2 from rainwater 21 after it has been installed on the building 1.

[0026] The floor section 11 is a substantially horizontal surface that serves as the floor of the balcony 2, and is substantially rectangular in plan view. The floor section 11 has a structure in which a floor surface material is attached to the inside of a floor frame.

[0027] Sides 11a and 11b are four straight line portions that define the periphery of rectangular floor portion 11, or four frame members that form the floor frame of floor portion 11. By installing balcony 2 on building 1, the four sides 11a and 11b of floor portion 11 are divided into sides 11b that contact building 1 and other sides 11a (sides 11a that do not contact building 1).

[0028] The side 11a that does not contact the building 1 is an edge of the floor portion 11 that is located on the opposite side from the building 1 and away from the building 1, facing outward. In contrast, the side 11b that contacts the building 1 is an edge of the floor portion 11 that is located on the side of the building 1, extends along the building 1, and is in approximate line contact with the building 1. In this embodiment, the floor portion 11 has two sides 11a that do not contact the building 1 and two sides 11b that contact the building 1.

[0029] The handrail section 12 is a vertical surface that rises from the side 11a of the floor section 11 of the balcony 2 that does not contact the building 1 and surrounds the floor section 11. The handrail section 12 can be a fence-like or wall-like section. In this embodiment, the handrail section 12 is wall-like. A coping 22 (Fig. 3) is attached to the top edge (upper edge) of the handrail section 12 at the construction site as a finishing touch. Then, by fixing the handrail section 12 to the floor section 11 at the factory, the balcony 2 becomes a balcony unit with the main parts pre-integrated.

[0030] The inner wall 13 is a wall that forms the inner surface of the wall-shaped handrail portion 12. The inner wall 13 is formed by attaching a plurality of inner wall panels 15.

[0031] The exterior wall 14 is a wall that constitutes the outer surface of the wall-shaped handrail portion 12. The exterior wall 14 is formed by attaching a plurality of exterior wall panels 23.

[0032] The end 16 on the building 1 side is the terminal part of the handrail section 12 that is closest to the building 1 (the building unit 3 on the upper floor). The periphery of the end 16 is the end 16 and a certain range in its vicinity. The end 16 on the building 1 side is installed so that it butts against the building 1. In this embodiment, there are two end parts 16 on the building 1 side.

[0033] The end 16 on the building 1 side is intentionally left partially unfinished (for example, the portion 17 where the interior wall panel is not installed) in order to attach the lifting device 24 (Figure 2) for lifting the balcony 2 and to perform finishing work to connect the waterproof structure on the building 1 side with the waterproof structure on the balcony 2 side, and the product is shipped from the factory in this state.

[0034] The inner wall panel 15 is a panel that constitutes the inner wall 13 of the handrail section 12. The inner wall panel 15 has a predetermined size and shape, and is installed singly or in multiple panels lined up horizontally along the inner surface of the handrail section 12. The inner wall panel 15 has a height that is approximately equal to the inner surface of the handrail section 12.

[0035] A single interior wall panel 15 not being attached refers to a state in which a single interior wall panel 15 is not attached to one of the positions where an interior wall panel 15 should be installed on the inside surface of the handrail section 12. Note that this state is different from, for example, a state in which an incompletely shaped interior wall panel 15 with a notch or the like is attached to one of the positions where an interior wall panel 15 should be installed on the inside surface of the handrail section 12.

[0036] As shown in Figure 4A, the non-installed interior wall panel area 17 is an intentionally unfinished area that is left missing one interior wall panel 15 around the edge 16 of the inner surface of the handrail section 12 facing the building 1 when the balcony 2 is manufactured at the factory. Therefore, the non-installed interior wall panel area 17 becomes an opening approximately the size of one interior wall panel 15. The balcony 2 is shipped from the factory with the non-installed interior wall panel area 17 on the inner surface of the handrail section 12. The non-installed interior wall panel area 17 is ultimately closed by attaching a complete interior wall panel 15 at the construction site.

[0037] The temporary rainproofing sheet 18 is a thin, light, and flexible resin sheet that is waterproof. The temporary rainproofing sheet 18 is formed to be approximately the same size and shape as the interior wall panel 15 that is to be attached to the non-interior wall panel installation portion 17. The temporary rainproofing sheet 18 is attached in advance to the non-interior wall panel installation portion 17 so as to completely cover the non-interior wall panel installation portion 17, such as when the balcony 2 is manufactured at a factory or when it is shipped. Then, when it rains, the balcony 2 is shipped from the factory with the non-interior wall panel installation portion 17 covered with the temporary rainproofing sheet 18.

[0038] (2) As shown in Figure 4A (to Figure 4D), The interior wall panel non-installation portion 17 may be formed in a rectangular frame portion 35 surrounded by a pair of handrail posts 31, 32 and upper and lower furring strips 33, 34 installed between the upper and lower ends of the pair of handrail posts 31, 32. The temporary rainproof sheet 18 may be rectangular and attached with airtight waterproof tape 36 while covering the frame portion 35.

[0039] Here, the handrail posts 31, 32 are vertical members that form the handrail frame, which is the basic structure of the handrail section 12. Of these, the handrail posts 31 are installed at both ends of each surface that makes up the handrail section 12 (end posts). Furthermore, multiple handrail posts 32 are installed with the required spacing between the handrail posts 31 at both ends (intermediate posts). The handrail posts 31 at both ends and the intermediate handrail post 32 may be made of the same material, or different materials. The handrail posts 31, 32 to which the temporary rainproofing sheet 18 is attached are the one closest to the building 1 (end post) and the one adjacent to it (intermediate post).

[0040] The handrail posts 31 located at both ends of each surface of the handrail section 12 have holes 31a (Fig. 5) at their upper ends for attaching the slings 24, etc. Holes 31a can also be used to insert a connecting and fixing tool 37 (Fig. 5) from above. The handrail post 31 also has holes 31b (Fig. 5) on its lower side for inserting fastening members 38 such as washers and nuts to connect and fix the lower end surface of the handrail post 31 to the building unit 3 on the lower floor using the connecting and fixing tool 37. Holes 31a and 31b can be sealed with tape 39 (Fig. 5) for waterproofing, as needed.

[0041] The furring strips 33, 34 are horizontal members used to form the handrail frame. The furring strips 33, 34 are provided continuously so as to straddle the upper and lower ends of multiple handrail posts 31, 32. In the figure, the furring strip 33 is on the upper side (upper furring strip) and the furring strip 34 is on the lower side (lower furring strip). The furring strips 33, 34 to which the temporary rainproofing sheet 18 is attached are the section between the handrail post 31 (end post) closest to the building 1 and the adjacent handrail post 32 (intermediate post).

[0042] The frame portions 35 are multiple frame-like portions formed by providing handrail posts 32 inside the handrail frames that form the basic structure of each side of the handrail section 12. The frame portions 35 are formed between adjacent handrail posts 31, 32 and between adjacent handrail posts 32, 32 between the upper and lower furring strips 33, 34. The interior wall panels 15 and exterior wall panels 23 are formed to a size (height and width) that matches the frame portions 35, and are attached to the frame portions 35 so as to close them. The frame portion 35 to which the temporary waterproofing sheet 18 is attached is the one closest to the building 1.

[0043] An inner wall underwater edge 41 is attached to the lower part of the handrail frame along the inside surface of the lower furring strip 34 (lower furring strip). Also, an under-wall bracket 42 is attached to the lower part of the frame part 35 to support and secure the lower edge of the interior wall panel 15. The under-wall bracket 42 is installed approximately in the center of the furring strip 34 that forms the frame part 35, overlapping on top of the inner wall underwater edge 41.

[0044] The airtight and waterproof tape 36 is an adhesive tape that is airtight and waterproof. Four pieces of the airtight and waterproof tape 36 are attached to the frame portion 35 of the handrail portion 12 so as to form a closed rectangle along the frame portion 35.

[0045] As shown in Figure 4B, the upper airtight waterproof tape 36 is attached horizontally along the inner surface of the upper furring strip (furring strip 33), and is installed so that its upper edge is aligned with the position of the upper surface of the upper furring strip (furring strip 33) (alignment line 43).

[0046] 4C(b), the airtight waterproof tape 36 that is applied vertically along the end handrail post 31 located on the building 1 side is installed, for example, with the edge opposite the building 1 roughly aligned with the inner surface of the end handrail post 31, on the side of the handrail post 31 opposite the building 1. This vertical airtight waterproof tape 36 is installed so that the upper and lower ends overlap with the airtight waterproof tapes 36 above and below it.

[0047] 4C(a), the airtight waterproof tape 36 that is applied vertically along the handrail post 32 located in the middle of the handrail section 12 is installed, for example, with the edge facing the building 1 roughly aligned with the face of the handrail post 31 facing the building 1 relative to the inner surface of the middle handrail post 32. This vertical airtight waterproof tape 36 is installed so that its upper and lower ends overlap with the upper and lower airtight waterproof tapes 36. Alternatively, a sheet-like interior wall support material may be attached to the inner surface of the middle handrail post 32, and the vertical airtight waterproof tape 36 may be installed using the interior wall support material as a reference.

[0048] 4D, the lower airtight waterproof tape 36, which is applied horizontally along the inside surface of the lower furring strip (furring strip 34), is installed so that its upper edge is aligned with the position of the upper surface of the lower furring strip (furring strip 34) (alignment line 44). The above-mentioned inside surface is the surface to which the interior wall panel 15 of the handrail posts 31, 32 and furring strips 33, 34 is attached.

[0049] The temporary rainproof sheet 18 is then attached so that, for example, its outer periphery matches the outer periphery of the rectangular portion formed by the four airtight waterproof tapes 36 (matching lines 43 and 45).

[0050] The following describes the waterproof structure of the building 1 and balcony 2. The waterproof structure is a permanent rainproofing that continuously protects the main body of the building 1 and the balcony 2 from rainwater 21 after the building 1 is constructed. For convenience of illustration, Fig. 3 and Figs. 6 to 8 show the interior wall panel 15 attached to the position of the interior wall panel non-installation section 17, but depending on the situation, the description will be given assuming that the interior wall panel non-installation section 17 is in place.

[0051] As shown in Figure 6, at the factory, a strip-shaped wall waterproof sheet 51 is attached to the upper edge of the handrail 12 along the upper surface of the upper furring strip 33 of the balcony 2. Caulking (caulking agent 52) ​​is applied between the upper furring strip 33 and the upper ends of the inner wall 13 and outer wall 14.

[0052] At this time, the wall-mounted waterproof sheet 51 is left as it is, not attached to the top surface of the furring strip 33, around the end 16 of the handrail section 12 on the building 1 side. The portion of the wall-mounted waterproof sheet 51 that has not been attached (unattached portion) is folded back upward and placed on top of the portion that has already been attached (already attached portion), and temporarily fixed to the upper edge of the handrail section 12 with temporary fixing tape or the like.

[0053] On the other hand, as shown in FIG. 7 (to FIG. 9), the main body of the building 1 has a waterproof sheet 55 on the back side of its exterior wall 54 so as to cover almost the entire side surface of the building 1.

[0054] In addition, the main body of the building 1 has a cutout 56 that accommodates the handrail post 31, and is approximately the same shape and size as the handrail post 31, at the part of the exterior wall 54 attached to the surface on which the balcony 2 is installed, where the end 16 of the handrail section 12 abuts.

[0055] A portion of the waterproof sheet 55 on the back side of the exterior wall 54 extends so as to protrude from the cutout 56. The extended portion of the waterproof sheet 55 protruding from the cutout 56 has at least an upper piece 55a and a side piece 55b, each of which is folded back along the surface of the exterior wall 54 and temporarily attached to the surface of the exterior wall 54 with tape 57. The waterproof sheet 55 also has an extended portion (lower piece 55c) that protrudes downward from the lower edge of the exterior wall 54.

[0056] The structure of the building unit 3 that constitutes the main body of the building 1 will be described below.

[0057] The building unit 3 has a unit frame with a box-frame rigid frame structure inside. As shown in Figure 2, the unit frame is a box frame with the upper ends of four columns 3a (unit columns) connected in a rectangular shape by four ceiling beams 3b, and the lower ends of the four columns 3a connected in a rectangular shape by four floor beams 3c (Figure 7).

[0058] 10, the upper part of the building unit 3 (on the lower floor) has ceiling joists 61 erected between opposing ceiling beams 3b. Ceiling panels 62 are attached to the underside of the ceiling joists 61, and ceiling work panels 63 and gypsum boards 64 are attached to the upper side of the ceiling joists 61.

[0059] The ceiling work board 63 and the gypsum board 64 are sized so as not to reach the ends of the ceiling joists 61, and heat insulating material 65 such as glass wool is attached to the parts of the ends of the ceiling joists 61 that are not covered by the ceiling work board 63 and the gypsum board 64. The glass wool is in a state that allows rainwater 21 to penetrate.

[0060] <Operation> The operation of this embodiment will now be described.

[0061] At the factory, a balcony unit is manufactured by attaching the handrail section 12 to the floor section 11, integrating the main parts of the balcony 2. The handrail section 12 of the balcony 2 is a wall-like structure having an inner wall 13 and an outer wall 14.

[0062] At this time, an interior wall panel-free portion 17 is formed on the inner surface of the handrail portion 12 around at least the end portion 16 on the building 1 side, where one interior wall panel 15 is not attached, leaving the handrail portion 12 in an incomplete state just before completion. For the outer surface portion of the handrail portion 12, an exterior wall 14 is also attached to the end portion 16 on the building 1 side (the side opposite to the interior wall panel-free portion 17).

[0063] This makes it possible to use the interior wall panel non-installed portion 17, for example, to attach a hoisting device 24 to the balcony 2 for transport or lifting, or to connect the waterproof structure on the building 1 side to the waterproof structure on the balcony 2 side when attaching the balcony 2 to the building 1. This eliminates the need to take the trouble of disassembling some of the main parts of the completed balcony 2 to attach the hoisting device 24 or connect the waterproof structure when shipping from the factory or at the construction site.

[0064] Then, in the balcony 2, a temporary rainproof sheet 18 is attached in advance at the factory to the interior wall panel non-installed portion 17 of the handrail portion 12. In this way, the interior wall panel non-installed portion 17 is covered with the temporary rainproof sheet 18, and the interior wall panel non-installed portion 17 is temporarily rainproofed.

[0065] Then, when it rains, the balcony 2 is transported from the factory to the construction site, where it is installed on the building 1. Work for that day ends when the balcony 2 is installed. The balcony 2 has its interior wall panel-free areas 17 sealed with temporary rainproofing sheets 18, so rainwater does not seep in through the interior wall panel-free areas 17.

[0066] Then, later, when the rain stops, the temporary rainproof sheet 18 is peeled off from the interior wall panel non-installation portion 17. The temporary rainproof sheet 18 can be peeled off relatively easily. The airtight waterproof tape 36 may be peeled off or may be left on the interior wall panel non-installation portion 17.

[0067] Thereafter, as a finishing work, the waterproof structure on the building 1 side and the waterproof structure on the balcony 2 side are connected, and the interior wall panel 15 is attached to the interior wall panel non-installation portion 17.

[0068] Specifically, for example, as shown in Figure 5, with a balcony 2 installed on the main body of the building 1 (such as on top of a building unit 3 on a lower floor), the upper piece 55a and side piece 55b of the waterproof sheet 55 of the building 1 (on the building unit 3 on the upper floor) are removed from the surface of the exterior wall 14 and attached to the top and inner surface of the nearest handrail post 31, so that the state changes from that of Figure 7 to that of Figure 8.

[0069] In parallel with the work of connecting the waterproof structure described above, the interior wall panels 15 are attached to the non-installed interior wall panel sections 17 with screws or the like, as shown in Figure 9. The above-mentioned wall-mounted waterproof sheet 51 is attached after the interior wall panels 15 have been attached to the non-installed interior wall panel sections 17. This completes the interior wall 13 of the balcony 2.

[0070] Then, the end of the wall-mounted waterproof sheet 51 on the balcony 2 is attached to the upper piece 55a of the waterproof sheet 55 on the building 1 side, which is attached to the top surface of the handrail post 31, so that they overlap vertically. This makes the waterproof structure on the building 1 side continuous with the waterproof structure on the balcony 2 side.

[0071] In this case, the interior wall panel non-installation section 17 is formed into a rectangular frame section 35 surrounded by a pair of handrail posts 31, 32 and upper and lower furring strips 33, 34. A single complete interior wall panel 15 is then attached to this interior wall panel non-installation section 17. This results in a beautifully finished interior wall 13, improving the appearance quality of the balcony 2.

[0072] Then, as a finishing touch, the coping 22 is attached to the top of the balcony 2 from above the wall-mounted waterproof sheet 51. This completes the balcony 2.

[0073] The above-described procedure may be modified as appropriate depending on the configuration of the building 1 and balcony 2 and the procedure for constructing them. For example, either the balcony 2 or the adjacent building unit 3 on the upper floor may be installed first on top of the building unit 3 on the lower floor.

[0074] The end of the waterproof sheet 51 on the wall of the balcony 2 and the upper piece 55a of the waterproof sheet 55 on the building 1 side may be overlapped with either side facing up.

[0075] The order of the waterproof structure continuation and the attachment of the interior wall panel 15 to the interior wall panel non-installation portion 17 may be any.

[0076] <Effects> According to this embodiment, the following effects can be obtained.

[0077] (Effect 1) In the temporary rainproofing structure of the balcony 2, the handrail portion 12 has an inner wall panel non-installed portion 17 around the end portion 16 on the building 1 side, which is the same size as one of the inner wall panels 15, and the inner wall panel non-installed portion 17 is covered with a temporary rainproofing sheet 18.

[0078] In this way, by covering the interior wall panel non-installed portion 17 with the temporary rainproof sheet 18, the temporary rainproof sheet 18 has waterproofing properties and is thin, light and flexible, making it easy to handle, so that the interior wall panel non-installed portion 17 can be easily covered.

[0079] The temporary rainproofing sheet 18 can reliably prevent rainwater 21 from seeping into the handrail section 12 from the non-installed interior wall panel section 17. Therefore, by covering the non-installed interior wall panel section 17 with the temporary rainproofing sheet 18, it is possible to prevent rainwater 21 from seeping into the handrail section 12 from the opening in the non-installed interior wall panel section 17 during rainfall, as shown by the arrow in Figure 3, and wetting the exterior wall 14 from the inside. Furthermore, it is possible to prevent the infiltrated rainwater 21 from reaching the lower floor and wetting the ceiling of the lower floor, as shown by the arrow in Figure 10. Therefore, it is possible to install the balcony 2 on the building 1 without worrying about rainwater 21 seeping into the handrail section 12 from the non-installed interior wall panel section 17, even during rainfall.

[0080] Moreover, since only a temporary rainproofing sheet 18 is attached to the non-installed interior wall panel portion 17, the temporary rainproofing sheet 18 can be easily peeled off. Then, by peeling off the temporary rainproofing sheet 18, the interior wall panel 15 can be attached to the non-installed interior wall panel portion 17 as is, making post-processing easy. Furthermore, the interior wall panel 15 to be attached to the non-installed interior wall panel portion 17 can be attached as is, and no processing such as adjusting the size or providing notches is required.

[0081] (Effect 2) In the rainproofing structure of the balcony 2, the rainproofing sheet 18 may be attached with airtight waterproof tape 36 to a frame portion 35 formed by a pair of handrail posts 31, 32 and upper and lower furring strips 33, 34 in the non-interior wall panel installation portion 17 of the handrail portion 12 at the end 16 that abuts against the building 1. This allows the frame portion 35 for attaching the interior wall panel 15 in the handrail portion 12 to be used as the non-interior wall panel installation portion 17 and to be used for attaching the rainproofing sheet 18. This eliminates the need to provide unnecessary structure in the handrail portion 12 for attaching the rainproofing sheet 18.

[0082] The frame portion 35 can easily be affixed with the temporary rainproof sheet 18 using airtight waterproof tape 36, and the non-installed interior wall panel portions 17 can be easily and reliably blocked with the temporary rainproof sheet 18, reliably preventing rainwater 21 from seeping into the interior from the non-installed interior wall panel portions 17. The airtight waterproof tape 36 can also be firmly affixed to the frame portion 35 so that the temporary rainproof sheet 18 can withstand heavy rainfall, strong winds, and the like. [Explanation of symbols]

[0083] 1. Building 2 Balcony 11 Floor Area 11a 12 Handrail section 13 Inner wall 14 Exterior Wall 15 Interior wall panels 16 Building side edge 17 Interior wall panel non-installed area 18 Temporary rainproof sheet 31 Handrail pillar 33 Fuselage 34 Fusuri 35 Frame part 36 Airtight waterproof tape

Claims

[Claim 1] a balcony having a floor and a handrail attached to an edge of the floor that is not in contact with the building; The handrail portion has an inner wall and an outer wall, The handrail portion has an interior wall panel non-installed portion in which only one interior wall panel is not attached around the end portion on the building side, The non-installed portion of the interior wall panel is covered with a temporary rainproof sheet, The interior wall panel non-installation portion is a rectangular frame portion surrounded by a pair of handrail posts and upper and lower furring strips installed between the upper and lower ends of the pair of handrail posts, The pair of handrail posts are end posts installed at the end of the handrail section that abuts against the building, and an intermediate post adjacent to the end post, The temporary rainproofing structure for a balcony is characterized in that the temporary rainproofing sheet is rectangular and is attached with airtight waterproof tape while covering the frame portion.

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