JP4133792B2 - Water stop structure between floors of outer wall - Google Patents

Description

  The present invention relates to a water stop structure between floors of an outer wall.

  For example, as a water-stopping structure between the first and second floors of the outer wall of a building such as a house, a water-stopping plate made of a metal plate, a metal-resin composite plate, a resin plate, etc. Is installed, and the water stop plate guides and discharges the stopped water to the outer wall surface downstairs.

  However, in the structure in which the water stopped by the water stop plate drips down and discharges to the outer wall surface below the floor, there is a problem that the outer wall surface below the floor may be soiled due to the drained water.

  In view of the problems as described above, the present invention provides a floor water-stop structure for an outer wall that can drain water stopped by an inter-floor water stop plate without polluting the outer wall surface of the lower floor. The issue is to provide.

The above problem is that each of the outer walls below the upper floor is provided with a foamed resin heat insulating material on the back surface of the outer wall surface material, and a ventilation portion that allows air to pass vertically between the outer wall surface material and the foamed resin heat insulating material. Made up of
An interstitial water stop plate that stops the floor between the outer walls communicates with the ventilation part of the outer wall part below the upper floor, and discharges the stopped water downward through the ventilation part of the outer wall part below the floor. The problem is solved by a water-stopping structure between the outer walls of the outer wall having a ventilation part.

  In this structure, the outer wall part of the lower floor is provided with a foamed resin heat insulating material on the back surface part of the outer wall surface material, and a ventilation part that allows air to pass vertically between the outer wall surface material and the foamed resin heat insulating material provided with water blocking properties. Since the floor water stop plate is provided so as to discharge the water that has stopped, through the ventilation part of the downstairs outer wall, The water stopped by the board can be discharged down well without polluting the outer wall surface of the downstairs.

  Moreover, since the inter-story water stoppages are provided so that the ventilation part of the outer wall part below the upper floor communicates with each other, the ventilation is not blocked by the water stop board between the floors, and the heat insulation performance of the outer wall Will not be damaged. Needless to say, ventilation is not hindered by the discharge of water stopped by the inter-story water stop plate.

  In the water stop structure described above, when the upper end of the vertical joint of the outer wall part of the downstairs is blocked by a closed part that continues from the interstory water stop plate, the water stopped by the water stop plate It is prevented from entering the vertical joint of the outer wall, and water can be prevented from entering the indoor side through the vertical joint.

  Since the inter-story water stop structure of the outer wall of the present invention is as described above, the water stopped by the inter-story water stop plate can be discharged well without polluting the outer wall surface of the downstairs, And in the heat insulation outer wall structure which provided the foamed resin heat insulating material and the ventilation layer in the back side of the outer wall surface material, ventilation | gas_flow is not interrupted | blocked by an interstory water stop board, and the heat insulation performance of an outer wall is not impaired. Moreover, the water stopped by the water stop plate does not enter the vertical joints of the outer wall portion of the downstairs, and it is possible to prevent water from entering the indoor side through the vertical joints.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  1-4, 1 is an outer wall part on the floor, 2 is an outer wall part on the lower floor, and 3 is an inter-story water stop plate.

  As shown in FIG. 1 to FIG. 3, the outer wall portions 1 and 2 on the upper floor are each provided with a foamed resin heat insulating material 5 on the back surface of the outer wall surface material 4 such as ceramics, and the outer wall surface material 4 and the foamed resin. The heat insulating material 5 includes a ventilation portion 6 that allows air to pass in the vertical direction. The ventilation portion 6 is formed by unevenness provided on the front side of the foamed resin heat insulating material 5. Each of the outer wall portions 1 and 2 is composed of an outer wall panel, and a vertical joint 7 is provided between outer wall panels adjacent to each other on the left and right. The ventilation portion may be formed by unevenness provided on the back side of the outer wall surface material 4. 8 is a steel panel frame, and 9 is a steel body difference.

  The inter-story water stop plate 3 is made of a metal plate, a composite plate of metal and resin, a resin plate, and the like, and as shown in FIGS. 1 and 2, the upper end portion thereof is a foamed resin heat insulation of the upper outer wall portion 1. It is provided so as to protrude to the back side of the material 5. In addition, the foamed resin heat insulating material 5 on the outer wall of the lower floor has a portion 5 a on the indoor side that rises upward from the ventilation portion 6, and the lower end portion of the inter-story water stop plate 3 has an upper end opening portion of the ventilation portion 6. It is provided along the front side of the rising portion 5a so as to be located on the outdoor side.

  Due to such a structure, the ventilation portions 6 and 6 of the outer wall portions 1 and 2 below the upper floor communicate with each other without being blocked by the water stop plate 3, and the floor portion of the outer wall is stopped by the inter-floor water stop plate 3. The water that has been watered and stopped by the inter-story water stop plate 3 is discharged downward through the ventilation part 6 of the downstairs outer wall part 2. In addition, 10 is an outer wall surface material between floors as a finishing material between floors, and the ventilation parts 6 and 6 provided in the outer wall portions 1 and 2 below the upper floor are connected to the outer wall surface material 10 between floors. The space plate 11 communicates with the water plate 3 through the space 11.

  Further, as shown in FIGS. 1 and 3, the upper end portion of the vertical joint 7 of the downstairs outer wall portion 2 is closed by a closing portion 12 continuous from the interstory water stop plate 3, and is stopped by the water stop plate 3. Water that has been drained is prevented from entering the vertical joint 7 of the downstairs outer wall 2. Note that a sealing material 16 for water stop may be provided between the closing portion 12 and the upper end portion of the outer wall surface material of the vertical joint portion of the downstairs outer wall portion 2.

  As shown in FIG. 4 (a), the closing part 12 may be constituted by a protruding plate part 3a integrated with the inter-story water stop plate 3, or as shown in FIG. 4 (b). The plate 3 may be a joint of the closing plate 13. Further, as shown in FIG. 4 (c), the lower end 3b of the inter-story water stop plate 3 is installed on the upper surface of the outer wall member 4 of the downstairs outer wall 2 so as to block the lower end 3b. 12, the upper end portion of the vertical joint 7 of the downstairs outer wall portion 2 is closed, and the ventilation portions 6, 6 of the outer wall portions 1, 2 of the upper floor downstairs are openings 14 provided at the lower end portion of the inter-story water stop plate 3. It is good to make it communicate through.

  In addition, as shown in FIG. 3, the joint sealing material 15 is installed between the left and right outer wall surfaces, and the water that is stopped by the water stop plate 3 is used for the closing portion 12 of this embodiment. It plays a role of preventing the material 15 from entering behind.

  In the inter-floor water stop structure, the water stopped by the inter-floor water stop plate 3 is successfully discharged downward through the vent 6 of the down-floor outer wall 2 as shown in FIGS. 1 and 2. Therefore, the downstairs outer wall surface is not soiled by this water discharge. Of course, the water that is discharged downward through the ventilation portion 6 does not enter the indoor side due to the water stoppage of the foamed resin heat insulating material 5.

  In addition, as described above, the inter-story water stop plate 3 is provided so as to communicate with the ventilation portions 6 and 6 of the outer wall portions 1 and 2 below the upper floor, so that the ventilation is provided between the floors. The heat insulation performance of the outer wall parts 1 and 2 is not impaired.

  Further, since a blocking portion 12 that is continuous with the water stop plate 3 is installed at the upper end of the vertical joint 7 of the downstairs outer wall portion 2, the water stopped by the interlevel water stop plate 3 is It is possible to prevent the water from entering the joint 7 and to prevent water from entering the indoor side through the vertical joint 7. Further, when the water is blown up from behind the joint sealing material 15 in the vertical joint of the downstairs outer wall 2, the blocking portion 12 blocks the blown water to the indoor side. It also has a function to prevent water from entering.

It is a section perspective view showing the outer wall floor water stop structure of an embodiment. It is the II sectional view taken on the line of FIG. It is the II-II sectional view taken on the line of FIG. FIGS. 1A to 1C are cross-sectional perspective views of an interstitial water-stopping material provided with different forms of blocking portions.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Upper floor outer wall part 2 ... Lower floor outer wall part 3 ... Interstitial water stop plate 4 ... Outer wall surface material 5 ... Foam resin heat insulating material 6 ... Ventilation part 7 ... Vertical joint 12 ... Blocking part

Claims (2)

Each of the outer walls below the upper floor is provided with a foamed resin heat insulating material on the back surface of the outer wall surface material, and a ventilation portion for passing air vertically between the outer wall surface material and the foamed resin heat insulating material. ,
An interstitial water stop plate that stops the floor between the outer walls communicates with the ventilation part of the outer wall part below the upper floor, and discharges the stopped water downward through the ventilation part of the outer wall part below the floor. An interstory water stop structure of an outer wall having a ventilation part, characterized by being provided.   The floor water-stop structure of the outer wall having an aeration part according to claim 1, wherein an upper end portion of the vertical joint of the outer wall part below the floor is closed by a plug part continuous from the water-stop sheet.

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