Water-repellent material

Abstract

To provide a water-repellent material capable of reducing the space between an exterior wall and the water-repellent material without preparing a dedicated water-repellent material that matches the shape of the exterior wall.MEANS: Provided is a water-repellent material that is installed below an exterior wall and above a waist wall located below the exterior wall, and on the inside of a building, and includes a water-repellent portion that is located below the exterior wall and above the waist wall and that diverts rainwater dripping from above to the outside of the building, and a partition portion that is located on the inside of the exterior wall and extends upward. The partition portion has a deformation portion that deforms when a predetermined pressure is applied.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a water-repellent material. [Background technology]

[0002] Conventionally, exterior wall structures are provided with flashing materials to prevent rainwater and the like from entering the interior of a building. It has also been disclosed that flashing materials shaped to match the shape of the exterior wall are used to reduce the gap between the flashing material and the exterior wall (Patent Document 1). By using the flashing material disclosed in Patent Document 1, it is possible to prevent pests such as ants, slugs, cockroaches, and other small animals and the like from entering the interior of the building through gaps in the exterior wall. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-003549 Summary of the Invention [Problem to be solved by the invention]

[0004] However, using a water-repellent material with a shape corresponding to the shape of the exterior wall as in Patent Document 1 is not preferable because it means preparing a dedicated water-repellent material for each shape of the exterior wall.

[0005] The present disclosure has been made in consideration of such problems, and its purpose is to provide a water-repellent material that can reduce the space between the exterior wall and the water-repellent material without having to prepare a dedicated water-repellent material that fits the shape of the exterior wall. [Means for solving the problem]

[0006] The water-repellent material according to one example of the present disclosure is: A waterproofing material installed below the exterior wall, above the waist wall located below the exterior wall, and on the inside of the building, A drip edge portion located below the exterior wall and above the waist wall, which catches rainwater dripping from above and directs it to the outside of the building; a partition portion located on the interior side of the exterior wall and extending upward; The partition portion has a deformation portion that is deformed when a predetermined pressure is applied thereto. [Effects of the Invention]

[0007] According to the water flashing material of the embodiment of the present disclosure, the space between the exterior wall and the water flashing material can be reduced without having to prepare a dedicated water flashing material that fits the shape of the exterior wall. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic view of the exterior of a building. [Figure 2] FIG. 2 is an exploded perspective view of a wall in a range A in FIG. [Figure 3] FIG. [Figure 4] 1 is a flowchart showing the procedure for exterior wall construction. [Figure 5] 2 before deformation of the deformation portion. FIG. [Figure 6] 2 after deformation of the deformation portion. FIG. [Figure 7] This is an oblique view of the water-repellent material after the deformation portion has been deformed, viewed from the inside of the building. [Figure 8] FIG. 2 is a plan view of the exterior wall and flashing material. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the present disclosure will be described below with reference to the drawings. In the drawings, for convenience of explanation, directions in space are indicated using three axes, XYZ. In particular, the Z direction corresponds to the direction of gravity (vertical direction), the +Z direction represents an upward direction, and the -Z direction represents a downward direction. The X direction and the Y direction are both perpendicular to the Z direction. That is, the X direction and the Y direction correspond to the horizontal direction. The X direction and the Y direction are perpendicular to each other. Note that the X direction is not limited to the direction shown in the drawings and can be any direction within a horizontal plane, and the Y direction can also be any direction accordingly.

[0010] FIG. 1 is a schematic external view of a building. The building 1 includes a foundation 3 and a main body 5. The foundation 3 is a supporting structure formed below ground level and made of, for example, concrete. The main body 5 is a shed supported by the foundation 3 and formed on the ground. The main body 5 is, for example, a warehouse. The main body 5 includes a skeleton 11, walls 13, a roof 15, and a spandrel wall 17. The skeleton 11 includes a plurality of steel columns 21 extending in the Z direction from the foundation 3 and a plurality of steel beams 23 (beams) extending in the X and Y directions between the plurality of steel columns 21. The steel columns 21 and the steel beams 23 are, for example, H-shaped steel. The steel columns 21 and the steel beams 23 may also be square columns. The wall 13 is, for example, a plate material arranged on the side of the main body 5 on the -Y side. The spandrel wall 17 is a member arranged on the foundation 3 and supports the skeleton 11. The roof 15 is provided on the top of the main body 5 and prevents raindrops from entering the main body 5.

[0011] 2 is an exploded perspective view of the wall 13 in range A in FIG. 1. The wall 13 includes furring strips 25, a flashing material 27, and an exterior wall 29. The furring strips 25 are members to which the exterior wall 29 is fixed. The furring strips 25 are arranged to extend horizontally (in the X direction in this embodiment) at predetermined intervals in the Z direction of the steel column 21. The furring strips 25 are attached to support members 26 welded to the steel column 21 using, for example, bolts and nuts. The furring strips 25 are, for example, C-shaped steel.

[0012] The flashing material 27 is located below the exterior wall 29 and above the spandrel wall 17 located below the exterior wall 29. It is a component that prevents rainwater dripping from above from falling on the exterior wall 29 or the spandrel wall 17 for a long period of time by deflecting the rainwater to the outside of the building. In other words, without the flashing material 27, rain would easily penetrate the exterior wall 29 or the spandrel wall 17, potentially causing deterioration of the exterior wall 29 or the spandrel wall 17. Furthermore, there is a gap between the exterior wall 29 and the spandrel wall 17, and the flashing material 27 can prevent rainwater from penetrating into the foundation 3. The flashing material 27 is installed below the exterior wall 29 and on the interior side of the building (the Y-side in this embodiment). The flashing material 27 is formed, for example, by plastically deforming a sheet metal member. The sheet metal member is, for example, a ferrous material, a non-ferrous material, or a non-metallic material. The ferrous material is, for example, a steel or stainless steel plate. In particular, the steel material is preferably Galvalume steel sheet (registered trademark). Furthermore, if the water-repellent material 27 is made of steel and is a corrosive material, it is preferable to prevent corrosion by painting or using an antiseptic sheet. Examples of non-ferrous materials include aluminum alloy sheets and copper alloy sheets. Examples of non-metallic materials include synthetic resin sheets and fiber materials.

[0013] The exterior wall 29 is a member for covering the side of the building 1. The exterior wall 29 is, for example, siding made of corrugated board material. The shape of the exterior wall 29 may be, for example, a shape with multiple protrusions in a cross-sectional view. The shape of the protrusions may be, for example, a trapezoid, a rectangle, a square, a semicircle, or an arc. The exterior wall 29 is fixed to the furring strips 25. The exterior wall 29 is fixed to the furring strips 25 by, for example, screws from the exterior wall 29 to the furring strips 25. The exterior wall 29 may also be fixed to the furring strips 25 by nails, double-sided tape, or bolts and nuts.

[0014] FIG. 3 is a perspective view of the flashing member 27. The flashing member 27 includes a flashing section 31 and a partition section 32. The flashing section 31 is a section for directing rainwater to the outside of the building. The flashing section 31 includes a first flashing section 311 extending toward the outside of the building and a second flashing section 312 extending downward from the outer end of the first flashing section 311. As will be described in detail later, the first flashing section 311 is a flat section extending to the side of the spandrel wall 17. The first flashing section 311 is formed with a slight downward inclination outward. The inclination angle of the first flashing section 311 may be any angle as long as rainwater flows downward. The second flashing section 312 is a flat section that guides rainwater flowing through the first flashing section 311 to the outside of the spandrel wall 17. The inner surface of the second flashing section 312 may be positioned so as to abut the side of the spandrel wall 17.

[0015] The partition portion 32 is a portion that separates the exterior wall 29 from the interior of the building. In other words, the partition portion 32 is a member that separates the outside and inside of the building 1. The partition portion 32 is located on the interior side of the building of the exterior wall 29 and extends upward. In this embodiment, the partition portion 32 is located between the exterior wall 29 and the furring strip 25. The partition portion 32 includes a deformation portion 33, a support portion 34, and a groove portion 35.

[0016] The deformation portion 33 is a portion that deforms when a predetermined force (for example, pressing force from an operator's finger) is applied. The deformation portion 33 extends along the Z direction. The deformation portion 33 is arranged so as to follow the side of the furring strip 25. The deformation portion 33 has a plurality of slits 37 that extend in the vertical direction. The plurality of slits 37 are cuts that extend from the upper end of the deformation portion 33 to the groove portion 35. The spacing between the slits 37 may be determined taking into consideration the thickness of the water-repellent material 27, the ease of deformation of the deformation portion 33, etc. The spacing between the slits 37 is, for example, about a few millimeters.

[0017] Support portion 34 is a portion that supports deformation portion 33 and groove portion 35. Support portion 34 is a flat portion that extends upward (in the Z direction) from the end portion on the inner side (in the Y direction) of first draining portion 311. The upper end of support portion 34 is connected to groove portion 35.

[0018] The groove portion 35 is a portion provided to facilitate deformation of the deformation portion 33. The groove portion 35 is formed between the deformation portion 33 and the support portion 34. That is, the groove portion 35 is connected to the lower end of the deformation portion 33 and also to the upper end of the support portion 34. The groove portion 35 is formed, for example, in an arc shape that protrudes inward (in the Y direction). When the deformation portion 33 is pressed, the partition portion 32 is likely to bend at the groove portion 35.

[0019] If the deformed portion 33 is made of a material and has a shape that is prone to spring back, i.e., returning to its original shape, adhesive 39 may be applied to the outer wall side surface of the deformed portion 33. By applying adhesive 39 to the deformed portion 33, the deformed portion 33 can be fixed along the shape of the outer wall 29, as will be described later.

[0020] Figure 4 is a flowchart showing the procedure for exterior wall construction. Here, exterior wall construction refers to the installation of water flashing material 27 and exterior wall 29, and it is assumed that the installation of framework 11, furring strips 25, etc. has already been completed. In exterior wall construction, first, water flashing material 27 is installed (step S1). Now, refer to Figure 5.

[0021] 5 is a cross-sectional view taken along arrow II in FIG. 2 before deformation of deformation portion 33. Water-repellent material 27 is installed so that second water-repellent portion 312 abuts against the side surface of waist wall 17 and deformation portion 33 is along the side surface of furring strip 25. Water-repellent material 27 is also installed so that first water-repellent portion 311 is inclined downward and outward. In other words, the connection portion between support portion 34 and first water-repellent portion 311 is positioned away from waist wall 17.

[0022] Next, in the exterior wall construction, the exterior wall 29 is attached (step S2). The exterior wall 29 is fixed to the furring strips 25 using screws, for example.

[0023] Next, in the exterior wall construction, the deformation portion 33 is pressed (step S3). Here, reference is made to FIGS.

[0024] 6 and 7 are a cross-sectional view taken along arrow II in FIG. 2 after the deformation of the deforming portion 33, and a perspective view of the flashing material 27 after the deformation of the deforming portion 33, as viewed from the inside of the building. Note that the furring strips 25 are not shown in FIG. 7. After the exterior wall 29 is installed, for example, a worker presses the deforming portion 33 toward the outside of the building 1 so that the deforming portion 33 deforms to conform to the shape of the exterior wall 29. This causes the lower portion 33a of the deforming portion 33 to extend from the groove 35 toward the protruding portion 291 of the exterior wall 29, and the upper portion 33b to deform to conform to the protruding portion 291 of the exterior wall 29. If adhesive 39 is applied to the deforming portion 33, the deforming portion 33 is fixed to conform to the shape of the protruding portion 291 of the exterior wall 29. Furthermore, by deforming the deforming portion 33 to conform to the shape of the exterior wall 29, the deforming portion 33 can reduce the space formed between the exterior wall 29 and the interior of the building.

[0025] FIG. 8 is a plan view of the exterior wall 29 and the flashing material 27. As described above, the deforming portion 33 can reduce the space formed between the exterior wall 29 and the interior of the building. However, even if the deforming portion 33 can fill most of the gap, a portion of the gap C may remain. In this case, as shown in FIG. 8, a sealant may be filled into the remaining gap C to fill the gap C. This allows the gap formed between the exterior wall 29 and the interior of the building to be suitably filled. Note that the sealant is preferably any of a silicone-based sealant, a silylated acrylate-based sealant, a modified silicone-based sealant, a polysulfide-based sealant, a polyurethane-based sealant, and an acrylic-based sealant.

[0026] As described above, flashing material 27 is installed below exterior wall 29 and above spandrel wall 17 located below exterior wall 29, on the interior side of the building. It includes flashing section 31 located below exterior wall 29 and above spandrel wall 17, which diverts rainwater dripping from above to the outside of the building, and partition section 32 located on the interior side of exterior wall 29 and extending upward. Partition section 32 has deformation section 33 that deforms when a predetermined pressure is applied (for example, pressure from a jig shaped to fit the irregularities of exterior wall 29 or the fingers of a worker). Therefore, when a predetermined force is applied, flashing material 27 deforms into a shape that conforms to the shape of exterior wall 29. As a result, flashing material 27 can reduce the space formed between exterior wall 29 and the interior of the building.

[0027] Furthermore, in the water-repellent material 27, the deformable portion 33 is formed with a slit 37 extending in the vertical direction. Therefore, for example, an operator can easily deform the deformable portion 33 of the water-repellent material 27.

[0028] Furthermore, in the water-repellent material 27, a groove portion 35 is formed below the deformed portion 33. Therefore, for example, an operator can easily deform the deformed portion 33 of the water-repellent material 27.

[0029] This concludes the description of the flashing material according to the present invention, but the present invention is not limited to the above embodiment and can be modified within the scope of the present invention. For example, in this embodiment, as shown in Figures 6 and 7, the lower part 33a of the deforming portion 33 extends from the groove 35 toward the protruding portion 291 of the exterior wall 29, and the upper part 33b is long enough to deform to fit the protruding portion 291 of the exterior wall 29. However, the length of the deforming portion 33 may be long enough so that the tip (end of the upper part 33b) of the deforming portion 33 contacts the inner surface of the exterior wall 29, as long as it can be appropriately changed to match the size of the irregularities in the exterior wall 29. Furthermore, in this embodiment, the partition portion 32 of the flashing material 27 is described as being located between the exterior wall 29 and the furring strip 25. However, it is sufficient if the partition portion 32 is located on the interior side of the exterior wall 29, as long as the deformation of the deforming portion 33 can reduce the space created by the protruding portion 291 of the exterior wall 29. In addition, in this embodiment, the deformation portion 33 is formed with a plurality of slits 37 extending in the vertical direction, but methods other than slits may be used. For example, a deformable deformation portion such as so-called aluminum tape may be used, or a deformable member such as a sheet-like member made of rubber or silicone may be used.

[0030] In addition, in this embodiment, it has been described that the flashing material 27 has the groove portion 35 formed in an arc shape that protrudes inward (in the +Y direction), but it may also be formed so as to protrude outward (in the -Y direction), or may be a groove with a U-shaped cross section, or may have intermittent slits as shown by the dashed or dotted lines. In addition, in this embodiment, it has been described that the adhesive 39 is applied to the deformed portion 33 and the deformed portion 33 is fixed to follow the shape of the outer wall 29, but it may also be fixed by nails or by welding. [Explanation of symbols]

[0031] 1. Building 27 Draining material 29 Exterior Wall 31 Draining section 32 Partition 33 Deformation section 35 Groove 37 Slit

Claims

1. A waterproofing material installed below the exterior wall, above the waist wall located below the exterior wall, and on the inside of the building, A drip edge portion located below the exterior wall and above the waist wall, which catches rainwater dripping from above and directs it to the outside of the building; a partition portion located on the interior side of the exterior wall and extending upward; The partition portion has a deformation portion that is deformed when a predetermined pressing force is applied. A drainage material characterized by:

2. The deformation portion has a slit extending in the vertical direction. The draining material according to claim 1 .

3. A groove portion is formed below the deformation portion. The draining material according to claim 1 .

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