Balcony rainproofing structure

Abstract

To be able to prevent rainwater infiltration from upper unsealed portions of an upper edge section of a handrail section, mainly.SOLUTION: This invention is related 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 is wall-shaped and has an above-wall waterproofing sheet 13 at an upper edge 12a. The upper edge 12a has an upper edge unsealed portion 15 around an edge 14 on the building 1 side, where the above-wall waterproofing sheet 13 is not locally installed. A waterproof tape 16 is applied to the upper edge unsealed portion 15.SELECTED DRAWING: Figure 7

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 is wall-shaped and has an upper edge , a full-length rainproofing sheet extending over the entire upper edge portion Wall-mounted waterproof sheet It has been installed And, The upper side portion is When shipped from the factory, Around the edge of the building but , the upper edge non-waterproof portion where the wall-mounted waterproof sheet is not locally installed The wall-mounted waterproof sheet is installed from the side opposite the building to a position on the front side of the upper edge non-waterproof portion, and the remaining part of the wall-mounted waterproof sheet is folded back onto the installed part and temporarily fixed, The aforementioned The non-waterproof upper part has A temporary waterproofing sheet is provided from the folded portion of the wall-mounted waterproof sheet to the end of the handrail on the building side. It features a temporary rainproof structure on the balcony with waterproof tape attached. [Effects of the Invention]

[0010] According to the present invention, with the above configuration, When setting up a balcony during rainy weather, Prevents rainwater from seeping in through the non-waterproof upper part of the handrail By waterproof tape for temporary rainproofing It is possible to prevent this. [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 4] This is an oblique view showing the waterproof structure for the upper edge of the balcony handrail (a permanent rainproof structure using a waterproof sheet on the wall). [Figure 5] This is an oblique view of the handrail of a balcony showing the non-waterproof part of the upper edge. [Figure 6] 6 is a partial enlarged view of an interior wall panel non-installed portion and an upper edge non-waterproof portion of FIG. 5. FIG. [Figure 7] 7 is a diagram showing a state in which waterproof tape is attached to the upper non-waterproof portion of FIG. 6. FIG. [Figure 8] 8(a) is a partially enlarged vertical cross-sectional view of the folded-back position of the wall-mounted waterproof sheet in FIG. 7. (b) is a partially enlarged vertical cross-sectional view of the part with the inner wall in FIG. 7. (c) is a partially enlarged vertical cross-sectional view of the part without the inner wall in FIG. 7. [Figure 9] FIG. 10 shows the state in which the balcony is fixed to the building unit on the lower floor. [Figure 10] FIG. 2 is a perspective view showing the waterproof structure of the building unit. [Figure 11] This 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 12] 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 13] This is an oblique view showing the state in which a wall-mounted waterproof sheet is attached to the upper non-waterproof portion of the upper edge of the handrail section after the interior wall panel has been installed. [Figure 14] 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 14 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. 4 (FIG. 5), the handrail portion 12 is wall-shaped and has a wall-mounted waterproof sheet 13 on the upper side portion 12a. As shown in FIG. 6, the upper side portion 12a has an upper side non-waterproof portion 15 around the end portion 14 on the building 1 side where the wall-mounted waterproof sheet 13 is not locally installed. Waterproof tape 16 is attached to the upper non-waterproof portion 15.

[0024] 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 17 (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, the continuous protection of the balcony 2 from rainwater 17 after it has been installed on the building 1 is called permanent weatherproofing.

[0025] 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 may have any structure, but for example, has a structure in which a floor surface material is attached to the inside of a floor frame.

[0026] 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).

[0027] 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.

[0028] 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, as described above. A coping 18 (Fig. 3) is attached to the top side 12a (upper side) 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 whose main parts are pre-set.

[0029] The upper edge portion 12a is the upper edge of the handrail portion 12, and is the portion to which the capping 18 is attached. The balcony 2 is manufactured in a factory up to the state before the capping 18 is attached. The capping 18 is attached to the upper edge portion 12a of the handrail portion 12 after the balcony 2 is installed on the building 1 at the construction site.

[0030] The wall-mounted waterproof sheet 13 is a waterproof resin sheet used to waterproof (fully waterproof) the upper edge 12a of the handrail section 12. The wall-mounted waterproof sheet 13 is preferably in the form of a strip of approximately the same width as the upper edge 12a, rolled up, and installed on the upper edge 12a. The wall-mounted waterproof sheet 13 is installed continuously along the upper edge 12a of the handrail section 12 so as to extend over the entire upper edge 12a. Before attaching the wall-mounted waterproof sheet 13 to the upper edge 12a of the handrail section 12, caulking is applied to any gaps (Figure 4, caulking agent C). The wall-mounted waterproof sheet 13 is interposed between the upper edge 12a and the coping 18.

[0031] The end 14 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 14 is the end 14 and a certain range in its vicinity. The end 14 on the building 1 side is installed so that it butts against the building 1. In this embodiment, there are two end parts 14 on the building 1 side.

[0032] The end 14 on the building 1 side is intentionally left partially unfinished (for example, the non-waterproof upper edge part 15) in order to attach a lifting device 19 (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 is shipped from the factory in this state.

[0033] The upper edge non-waterproof portion 15 is the portion of the upper edge portion 12a of the handrail portion 12 that is not waterproofed by the wall-mounted waterproof sheet 13. The upper edge non-waterproof portion 15 is an intentional portion of the upper edge portion 12a that is formed by not completely attaching the wall-mounted waterproof sheet 13 to the entire area of ​​the upper edge portion 12a at the factory, and is therefore an intentional portion of the wall-mounted waterproof sheet 13 that is not attached to a part of the upper edge portion 12a. The upper edge non-waterproof portion 15 is formed around the end portion 14 on the building 1 side. The upper edge non-waterproof portion 15 is basically shipped from the factory in almost the same state, except for the application of waterproof tape 16.

[0034] The waterproof tape 16 is a waterproof adhesive tape. The waterproof tape 16 is attached to the upper-side non-waterproof portion 15 to waterproof it. The waterproof tape 16 is attached to the upper-side non-waterproof portion 15 of the upper side portion 12a as needed, either to the entire upper-side non-waterproof portion 15 or to the portion that needs waterproofing, for example, when shipping from the factory during rainfall, or before that. This allows the upper-side non-waterproof portion 15 to be temporarily waterproofed by the waterproof tape 16, making it possible to temporarily waterproof the upper-side non-waterproof portion 15. The waterproof tape 16 is peeled off from the upper side portion 12a after the balcony 2 is installed on the building 1.

[0035] (2) More specifically, as shown in FIG. 5 (FIG. 6), the handrail section 12 may have a handrail frame 21, an outer wall 22 attached to the outer surface of the handrail frame 21, and an inner surface blocking section 23 attached to the inner surface of the handrail frame 21. As shown in Figure 7 (Figure 8), the waterproof tape 16 may be attached so as to span the upper part of the upper edge non-waterproof portion 15 between the handrail frame 21 and the outer wall 22, and the upper part of the handrail frame 21 and the inner closure portion 23.

[0036] Here, the handrail frame 21 is a frame body that forms the basic structure of the handrail section 12. The handrail frame 21 is mainly composed of handrail posts 24 and furring strips 25. The handrail posts 24 are vertical members that are installed at intervals at both ends and the middle of each face that makes up the handrail section 12. The furring strips 25 are horizontal members (upper furring strips, lower furring strips) that are installed above and below the handrail posts 24 and connect the upper and lower ends of the handrail posts 24. The top of the handrail frame 21 forms the top surface of the upper furring strip 25.

[0037] The handrail posts 24 located at both ends of each surface of the handrail section 12 have holes 24a at their upper ends for attaching the slings 19, etc. Holes 24a can also be used to insert a connecting and fixing tool T (Fig. 9) from above. The handrail post 24 also has holes 24b (Fig. 9) on its lower side for inserting fastening members N such as washers and nuts for connecting and fixing the lower end surface of the handrail post 24 to the building unit 3 on the lower floor using the connecting and fixing tool T. Holes 24a and 24b can be sealed with tape P (Fig. 9) for waterproofing, if necessary.

[0038] The exterior wall 22 is a wall that constitutes the outer surface of the wall-shaped handrail section 12. The exterior wall 22 is attached to the handrail frame 21 so as to cover the handrail frame 21 from almost the outside. The exterior wall 22 is made up of one or more exterior wall panels 22a. The multiple exterior wall panels 22a are attached to the handrail frame 21 in a state where they are lined up horizontally along the handrail section 12.

[0039] Additionally, an inner wall 26 is attached to the inner surface of the wall-shaped handrail section 12. The inner wall 26 is attached to the handrail frame 21 so as to cover the handrail frame 21 from almost the inside. The inner wall 26 is made up of one or more inner wall panels 26a. The multiple inner wall panels 26a are attached to the handrail frame 21 in a state where they are lined up horizontally along the handrail section 12.

[0040] The inner surface closing portion 23 is a member that closes the inner surface of the wall-shaped handrail portion 12, and is mainly composed of an inner wall panel 26a.

[0041] The handrail section 12 is shipped from the factory with an interior wall panel-free area 27 (FIG. 5) in place around the end 14 on the building 1 side, where one interior wall panel 26a is not installed. In the shipped state, the interior wall panel-free area 27 is covered with a resin-made temporary rainproof sheet 27a (FIG. 6) that is approximately the same size as one interior wall panel 26a, instead of the interior wall panel 26a. The temporary rainproof sheet 27a is attached to the handrail frame 21 using airtight waterproof tape 27b (FIG. 6). Therefore, the temporary rainproof sheet 27a is also included in the inner surface blocking area 23. The exterior wall panel 22a is attached in advance to the entire surface of the handrail section 12, including the position of the interior wall panel-free area 27.

[0042] Being stuck across the upper part of the handrail frame 21 and the outer wall 22 means that the waterproof tape 16 is stuck continuously in one strip along at least the upper edge 12a (upper surface of the upper furring strip 25) of the handrail frame 21 and the upper edge of the outer wall 22 so as to straddle the two.

[0043] Also, being stuck across the upper part of the handrail frame 21 and the inner closure part 23 means that the waterproof tape 16 is stuck continuously in one strip along at least the upper edge part 12a (upper surface of the upper furring strip 25) of the handrail frame 21 and the upper edge part of the inner closure part 23 so as to straddle the two.

[0044] As a result of the above, at least two strips of waterproof tape 16 are attached, one on the side of the exterior wall 22 and the other on the side of the inner closure portion 23. The waterproof tape 16 is stretched and attached until it reaches the side of the handrail post 24 on the building 1 side that faces the building 1.

[0045] More specifically, as shown in Fig. 4, the wall-mounted waterproof sheet 13 is installed in the factory on the upper edge 12a of the handrail section 12, from the end opposite the building 1 toward the building 1. At this time, as shown in Fig. 6, the wall-mounted waterproof sheet 13 is installed up to a position just before the position of the interior wall panel non-installation section 27 where the temporary rainproof sheet 27a will be installed. In other words, the wall-mounted waterproof sheet 13 is attached in advance up to a position partway along the interior wall panel 26a adjacent to the temporary rainproof sheet 27a.

[0046] The portion of the wall-mounted waterproof sheet 13 that will be around the end 14 on the building 1 side is not yet attached to the upper edge portion 12a, but is folded back onto the portion of the wall-mounted waterproof sheet 13 that has already been attached to the upper edge portion 12a, and is temporarily fixed with a temporary fixing tape 28.

[0047] If necessary, the first waterproof tape 16 (first piece 16a) may be attached horizontally to the folded portion 29 of the wall-mounted waterproof sheet 13 in the width direction of the upper side 12a of the handrail portion 12. As shown in Figure 8(a), the first waterproof tape 16 is cut to a length that causes both ends to extend laterally beyond the upper side 12a of the handrail portion 12, and the both extending ends are attached to the upper side surfaces of the outer wall 22 and the inner wall 26, respectively. This prevents rainwater 17 from seeping in through the folded portion 29.

[0048] In this state, as shown in Figure 7, the second waterproof tape 16 (second piece 16b) and the third waterproof tape 16 (third piece 16c) are continuously attached from the folded portion 29 of the wall-mounted waterproof sheet 13 to the end 14 of the handrail section 12 on the building 1 side. As a result, the second waterproof tape 16 and the third waterproof tape 16 have approximately the same length as the upper edge non-waterproof section 15. In other words, the second waterproof tape 16 and the third waterproof tape 16 are attached to a length longer than the width of one interior wall panel 26a.

[0049] The second waterproof tape 16 and the third waterproof tape 16 are applied so as to overlap the first waterproof tape 16 by a required amount. Note that the second waterproof tape 16 and the third waterproof tape 16 may be applied first, and then the first waterproof tape 16 may be applied so as to overlap the folded portion 29 of the wall-mounted waterproof sheet 13 and the ends of the second waterproof tape 16 and the third waterproof tape 16 by a required amount. Alternatively, the first waterproof tape 16 may be applied twice, both below and above the ends of the second waterproof tape 16 and the third waterproof tape 16.

[0050] In this case, as shown in Figure 8(b), the second waterproof tape 16 is attached so that its edge is aligned with the outdoor surface of the exterior wall 22 and the gap between the small end of the upper edge of the exterior wall 22 and the upper surface of the upper furring strip 25 is filled.

[0051] In addition, in the area where the inner wall 26 exists, the third waterproof tape 16 is attached so as to fill the gap between the small end of the upper edge of the inner wall 26 and the upper surface of the upper furring strip 25, with its edge aligned with the position of the surface of the inner wall 26 on the floor 11 side.

[0052] As shown in Figure 8(c), the third waterproof tape 16 is further extended to the portion of the temporary waterproof sheet 27a where the inner wall 26 does not exist, and is also stuck between the upper edge of the temporary waterproof sheet 27a and the upper surface of the upper furring strip 25. In this case, since the edge of the third waterproof tape 16 protrudes laterally by the thickness of the inner wall 26, the protruding portion is stuck to the upper surface of the temporary waterproof sheet 27a.

[0053] In addition, the upper surface of the handrail frame 21 may not be flush with the upper edge of the outer wall 22 and the upper edge of the inner closure portion 23, and a step may be formed between the two, for example, such that the upper surface of the handrail frame 21 is higher and the upper edge of the outer wall 22 and the upper edge of the inner closure portion 23 are lower.

[0054] In this case, the wall-mounted waterproof sheet 13 and waterproof tape 16 are pressed using a hand roller R or the like so as to adhere sufficiently to the top surface of the handrail frame 21, the outer wall 22, the inner wall 26, the inner closure portion 23, and the step surface.

[0055] 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 17 after the building 1 is constructed. For convenience of illustration, Figures 3, 9 to 13, etc. show interior wall panel 26a attached to the position of interior wall panel non-installation section 27, but depending on the situation, the description will be given assuming that interior wall panel non-installation section 27 is in place.

[0056] As shown in FIG. 10, the main body of the building 1 has a waterproof sheet 32 ​​on the back side of its exterior wall 31 so as to cover almost the entire side of the building 1.

[0057] In addition, the main body of the building 1 has a cutout 33 that accommodates the handrail post 24, and is approximately the same shape and size as the handrail post 24, at the part of the exterior wall 31 attached to the surface on which the balcony 2 is installed, where the end 14 of the handrail section 12 abuts.

[0058] The waterproof sheet 32 ​​on the back side of the exterior wall 31 is partially extended so as to protrude from the cutout 33. The extended portion of the waterproof sheet 32 ​​protruding from the cutout 33 has at least an upper piece 32a and a side piece 32b, each of which is folded back along the surface of the exterior wall 31 and temporarily secured to the surface of the exterior wall 31 with tape 34. The waterproof sheet 32 ​​also has an extended portion (lower piece 32c) that protrudes downward from the lower edge of the exterior wall 31.

[0059] The building unit 3 that constitutes the main body of the building 1 will be described below.

[0060] 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 10).

[0061] 14, the upper part of the building unit 3 (on the lower floor) has ceiling joists 35 erected between opposing ceiling beams 3b. Ceiling panels 36 are attached to the underside of the ceiling joists 35, and ceiling work panels 37 and gypsum boards 38 are attached to the upper side of the ceiling joists 35.

[0062] The ceiling work board 37 and gypsum board 38 are sized so as not to reach the end 14 of the ceiling joist 35, and the part of the end 14 of the ceiling joist 35 that is not covered by the ceiling work board 37 and gypsum board 38 is fitted with heat insulating material 39 such as glass wool. The glass wool is in a state that allows rainwater 17 to penetrate.

[0063] <Operation> The operation of this embodiment will now be described.

[0064] 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 26 and an outer wall 22.

[0065] At this time, an interior wall panel non-installed portion 27 where only one interior wall panel 26a is not attached is formed on at least the inner surface portion of the handrail portion 12 around the end portion 14 on the building 1 side, 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 22 is also attached to the end portion 14 on the building 1 side (the side opposite to the interior wall panel non-installed portion 27).

[0066] Furthermore, a non-waterproof upper portion 15 where the wall-mounted waterproof sheet 13 is not locally installed is formed on the upper portion 12a of the handrail portion 12 around the end portion 14 on the building 1 side, leaving the upper portion 12a in an unfinished state just before completion, with the wall-mounted waterproof sheet 13 not completely attached. The non-waterproof upper portion 15 is formed over an area slightly wider than the non-installed portion 27 of the interior wall panel.

[0067] As a result, the interior wall panel non-installation portion 27 and the upper edge non-waterproof portion 15 can be used to, for example, attach hoisting fixtures 19 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 hoisting fixtures 19 or connect the waterproof structure when shipping from the factory or at the construction site.

[0068] In addition, a temporary rainproof sheet 27a is attached in advance at the factory to the non-installed interior wall panel portion 27 of the handrail portion 12 of the balcony 2. This closes the non-installed interior wall panel portion 27 with the temporary rainproof sheet 27a, and the non-installed interior wall panel portion 27 is temporarily rainproofed.

[0069] Furthermore, the balcony 2 has waterproof tape 16 attached in advance to the upper non-waterproof portion 15 of the handrail portion 12 at the factory. This seals the upper non-waterproof portion 15 with the waterproof tape 16, and temporarily waterproofs the upper non-waterproof portion 15.

[0070] 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 27 sealed with temporary rainproofing sheets 27a and its upper edge non-waterproof areas 15 sealed with waterproof tape 16, so rainwater 17 does not seep in through the interior wall panel-free areas 27 or the upper edge non-waterproof areas 15.

[0071] Then, later, when the rain stops, the temporary rainproof sheet 27a is peeled off from the interior wall panel non-installation portion 27. The temporary rainproof sheet 27a can be peeled off relatively easily. The airtight waterproof tape 27b may be peeled off or may be left on the interior wall panel non-installation portion 27.

[0072] The waterproof tape 16 is also peeled off from the upper-side non-waterproof portion 15. The waterproof tape 16 can be peeled off from the upper-side non-waterproof portion 15 relatively easily.

[0073] 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 26a is attached to the interior wall panel non-installation portion 27.

[0074] Specifically, for example, as shown in Figure 9, a balcony 2 is installed and fixed to the main body of the building 1 (such as above a building unit 3 on a lower floor), and then the upper piece 32a and side piece 32b of the waterproof sheet 32 ​​of the building 1 (of the building unit 3 on an upper floor) are removed from the surface of the exterior wall 22 and attached to the upper surface and inner surface of the nearest handrail post 24, so that the state changes from Figure 10 to Figure 11.

[0075] In parallel with the work of connecting the above-mentioned waterproof structure, the interior wall panel 26a is attached to the non-installed interior wall panel portion 27 with screws or the like, as shown in Figure 12. The wall-mounted waterproof sheet 13 is attached to the upper non-waterproof portion 15 after the interior wall panel 26a has been attached to the non-installed interior wall panel portion 27. Gaskets G are attached to both sides of the interior wall panel 26a installed at the construction site, and the gaskets G are inserted into the joints between adjacent interior wall panels 26a and the exterior wall 31 of the building 1. Caulking agent C is applied to the top of the joints as appropriate. This completes the interior wall 26 of the balcony 2.

[0076] Then, the end 14 of the wall-mounted waterproof sheet 13 of the balcony 2 is attached to the upper non-waterproof part 15. Furthermore, the end 14 of the wall-mounted waterproof sheet 13 is attached to the upper piece 32a of the waterproof sheet 32 ​​on the building 1 side, which has been attached to the top surface of the handrail post 24, by overlapping it vertically. This makes the waterproof structure on the building 1 side continuous with the waterproof structure on the balcony 2 side.

[0077] Then, as a finishing touch, a coping 18 is attached to the upper side 12a of the balcony 2 from above the wall-mounted waterproof sheet 13. This completes the balcony 2.

[0078] 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.

[0079] The end 14 of the wall-mounted waterproof sheet 13 of the balcony 2 and the upper piece 32a of the waterproof sheet 32 ​​on the building 1 side may be overlapped with either side facing up.

[0080] Either the continuation of the waterproof structure or the attachment of the interior wall panel 26a to the interior wall panel non-installation portion 27 may be performed first.

[0081] <Effects> According to this embodiment, the following effects can be obtained.

[0082] (Effect 1) In the temporary weatherproofing structure of the balcony 2, the handrail portion 12 of the balcony 2 has waterproof tape 16 attached to the upper non-waterproof portion 15 provided around the end 14 of the upper edge portion 12a on the building 1 side.

[0083] In this way, the upper side non-waterproof portion 15 is waterproofed with the waterproof tape 16, and gaps through which rainwater 17 can seep into the upper side non-waterproof portion 15 of the upper side portion 12a can be eliminated. Therefore, the waterproof tape 16 can reliably prevent the upper side portion 12a from seeingp into the inside of the handrail portion 12 from the upper side non-waterproof portion 15.

[0084] This prevents rainwater 17 from seeping into the handrail section 12 through the gap in the upper non-waterproof section 15 of the upper section 12a during rainfall, wetting the exterior wall 22 from the inside. Furthermore, it prevents the seeping rainwater 17 from reaching the lower floor and wetting the ceiling of the lower floor, as shown by the arrow in Figure 14.

[0085] Therefore, even when it rains, the balcony 2 can be transported from the factory to the construction site and installed on the building 1 at the construction site without having to worry about rainwater 17 infiltrating from the upper non-waterproof part 15 to the inside of the handrail part 12.

[0086] Furthermore, since only waterproof tape 16 is applied to the upper-side non-waterproof portion 15, the waterproof tape 16 can be easily peeled off. Then, by peeling off the waterproof tape 16, the wall-mounted waterproof sheet 13 (the remaining part thereof) can be applied to the upper-side non-waterproof portion 15 as is, thereby waterproofing the upper-side non-waterproof portion 15 (fully waterproofing), and subsequent processing is also easy.

[0087] (Effect 2) In the temporary rainproof structure of the balcony 2, the waterproof tape 16 may be applied so as to straddle the upper part of the upper edge non-waterproof portion 15 between the handrail frame 21 and the outer wall 22, and the upper part of the handrail frame 21 and the inner closure portion 23.

[0088] This makes it easy to apply the waterproof tape 16 to the upper edge 12a of the handrail section 12. Furthermore, with a minimum amount of waterproof tape 16 applied, it is possible to easily and reliably seal the gaps between the upper parts of the handrail frame 21 and the exterior wall 22, and between the upper parts of the handrail frame 21 and the inner surface closing section 23, preventing rainwater 17 from seeping into the inside of the upper edge non-waterproof section 15 of the handrail section 12 through the gaps between the upper parts. It is also possible to make the tape 16 resistant to heavy rainfall and strong winds. [Explanation of symbols]

[0089] 1. Building 2 Balcony 11 Floor Area 11a 12 Handrail section 12a Upper edge 13 Wall-mounted waterproof sheet 14 End of the abutment 15 Upper non-waterproof part 16 Waterproof tape 21 Handrail frame 22 Exterior Wall 23 Internal closed area

Claims

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 is wall-shaped, and a waterproof wall sheet for rainproofing is installed on the upper edge portion over the entire length of the upper edge portion, When the upper edge portion is shipped from the factory, the periphery of the end portion on the building side is made into an upper edge non-waterproof portion where the wall-mounted waterproof sheet is not installed locally, and the wall-mounted waterproof sheet is installed from the side opposite the building to a position in front of the upper edge non-waterproof portion, and the remaining portion of the wall-mounted waterproof sheet is folded back over the installed portion and temporarily fastened, A temporary rainproofing structure for a balcony, characterized in that waterproof tape for temporary rainproofing is attached to the non-waterproof upper edge portion from the position of the folded part of the waterproof sheet on the wall to the position of the end of the handrail portion on the building side.

2. The balcony temporary rainproofing structure according to claim 1, The handrail portion includes a handrail frame, an outer wall attached to the outer surface of the handrail frame, and an inner surface closing portion attached to the inner surface of the handrail frame, The waterproof tape is attached so as to straddle the upper part of the upper edge non-waterproof portion between the handrail frame and the outer wall, and the upper part of the handrail frame and the inner closure portion.

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