JP5170400B2 - curtain wall - Google Patents

Description

  The present invention relates to a curtain wall, and more particularly, to a curtain wall for constructing a wall surface of a building with a panel material such as a single plate glass or a multi-layer glass.

  The curtain wall construction methods disclosed in Patent Documents 1 and 2 are configured to form a glass panel unit by bonding and fixing a metal frame member having a substantially U-shaped cross section to the edge of the glass plate. This is a construction method in which a curtain wall is constructed by assembling a to the opening of the outer wall surface.

  On the other hand, the glass panel unit 1 of the curtain wall shown in the horizontal cross section of FIG. 6 is configured by integrating the multi-layer glass 2 and the frame material 3 via the sealing material 4, and the multi-layer glass 2 and the frame material 3. Between the two, an isobaric space portion 5 that is substantially isobaric with the outside is formed.

  By the way, when it is going to apply the curtain wall construction method of patent documents 1 and 2 to double glazing, there are the following problems. That is, when water enters from a minute gap between the frame material and the small glass surface of the multilayer glass, the water stays on the small glass surface of the multilayer glass and enters the multilayer glass. Thereby, there exists a problem of reducing durability, ie, a weather resistance, of a multilayer glass.

  On the other hand, in the curtain wall shown in FIG. 6, since the isobaric space portion 5 is provided facing the small edge surface of the multilayer glass 2, a gap between the multilayer glass 2 and the frame member 3 is provided. Water such as rainwater that has entered from the air is drained from an air intake hole / drain (not shown) through the isobaric space 5. Therefore, since the infiltrated water does not stay on the facet of the multilayer glass 2, there is an advantage that the durability of the multilayer glass can be maintained. Reference numeral 6 in FIG. 6 is a seal member that seals the gap between the adjacent frame members 3 and 3, and reference numeral 7 is a spacer provided at the peripheral edge of the multilayer glass 2. Is bonded to the glass plates 2A and 2B of the multilayer glass 2 by a butyl primary sealing material (not shown). Further, reference numeral 8 denotes a secondary sealing material made of an elastic sealing material or the like placed in a space defined by the peripheral edges of the two glass plates 2A and 2B spaced apart and the spacer 7. is there. As a result, a sealed hollow layer 9 is formed inside the multilayer glass 2.

  However, since the conventional curtain wall shown in FIG. 6 has the isobaric space 5 formed for each glass panel unit 1, the frame 3 has a wider width, and the curtain wall has landscape and design characteristics. There was a problem that it became worse.

Such a problem is caused by directly adhering a sealing member made of resin as a dry seal to the small face of the glass plate and bringing the sealing members adhered to the adjacent glass plates into close contact with each other. This can be solved by forming a joint having a defined isobaric space.
Japanese Patent No. 2612400 Japanese Patent No. 3762656

  However, if the resin sealing member is directly bonded to the small edge of the glass plate constituting the curtain wall as described above, the adhesion between the glass plate and the sealing member due to the large difference in the linear expansion coefficient between the glass and the resin. There was a risk that the part would peel off. Particularly in the summer when the temperature is high, the sealing member is greatly expanded with respect to the glass plate along the longitudinal direction of the facet of the glass plate, so that the problem of peeling is concerned. When peeling occurs, a large amount of water infiltrates from the peeled portion and stays on the small edge surface of the glass plate. Therefore, when the glass plate is a double-glazed glass, the weather resistance is lowered as described above. .

  This invention is made | formed in view of such a situation, A landscape property and designability can be improved by forming a joint part and an isobaric space with a sealing member, without using a frame material. Another object of the present invention is to provide a curtain wall that can improve the weather resistance of the panel material by preventing water from staying on the small edge surface of the panel material.

In order to achieve the above object, the present invention provides a curtain wall in which a plurality of multiple glass layers are arranged adjacent to each other in the vertical direction and / or the horizontal direction to form a wall surface, and is provided at a joint portion between the adjacent multiple glass sheets. In addition, an isobaric space portion that is substantially isobaric with the outside is provided in a resin sealing member that seals the joint portion, and the sealing member is formed on the small edge surface with respect to the small edge surface of the multilayer glass. An intermediate member is bonded to a sealing material that is slidably engaged in a direction along the longitudinal direction of the glass plate and is placed between the peripheral edges of the glass plates constituting the multi-layer glass. by the sealing member to the engaging portion formed are engaged, the sealing member, and wherein Rukoto slidably engaged in the direction along the longitudinal direction of the small surface of the insulating glass Provide curtain walls.
Here, the longitudinal direction of the facet of the multilayer glass refers to the length direction of the facet.

The present invention is an invention specializing in curtain walls that use multi-layer glass as a panel material. According to the present invention, without Ru attach the frame member to the insulating glass, so to form between the outside and substantially isobaric equi-pressure sealing member provided on the joint portion between the adjacent double glazing curtain The landscape and design of the wall can be improved.

Then, the onset Ming, rather than adhering the sealing member directly to small surface of the insulating glass, slidably in a direction along the longitudinal direction of the small surface with respect to small surface of the insulating glass sealing The sealing member was attached to the double glazing with the members engaged. As a result, even when the sealing member expands greatly with respect to the panel material along the longitudinal direction of the facet of the double-glazed glass, particularly in summer when the temperature is high, the sealing member engages with the double-glazed glass. Since it slides along the longitudinal direction of the facet of the double-glazed glass in this state, it is possible to prevent the sealing member from peeling from the double-glazed glass. Therefore, it is possible to prevent water from entering the small glass surface of the multilayer glass, and it is possible to prevent water from staying on the small glass surface, thereby improving the weather resistance of the multilayer glass.

The present invention, before the intermediate member is bonded to the sealing material to be Da設the periphery of each other each glass plate constituting the Kifukuso glass, the sealing member to the engaging portion formed in the intermediate member By being engaged, the sealing member is slidably engaged in a direction along the longitudinal direction of the facet of the multilayer glass.

In order to directly engage the sealing member with the multilayer glass, an engaging portion for engaging the sealing member with the multilayer glass must be formed. Forming is difficult in terms of processing, and increases the number of manufacturing steps, leading to increased costs. Therefore, as the onset Ming, an intermediate member is interposed between the double glazing and the sealing member, it is preferable to form the engaging portion for engaging the sealing member to the intermediate member.

  The intermediate member is preferably adhered to a sealing material (secondary sealing material) placed between the peripheral edges of the glass plates constituting the multilayer glass and integrated with the multilayer glass. Further, it is preferable that a sealing member is engaged with the intermediate member in advance. Thereby, the panel unit in which the sealing member and the intermediate member are attached to the multilayer glass in advance can be shipped from the multilayer glass manufacturing factory, and the workability at the construction site of the curtain wall is improved. The material of the intermediate member may be a metal such as aluminum or stainless steel, or may be made of resin.

The present invention, before Symbol intermediate member, wherein a member which is arranged along the longitudinal direction of the small surface of the glass plate positioned interior side of the insulating glass, two double adjoining across the joints A seal member that seals the gap is provided in a gap between the intermediate member and the edge surface of the adjacent double-layer glass that is disposed only on one side of the layer glass.

According to this invention, it is preferable to arrange | position an intermediate member along the longitudinal direction of the fore edge surface of the glass plate located in the room inner side of a multilayer glass. Thereby, since an intermediate member becomes inconspicuous from the indoor side and an outdoor side, the fall of landscape property can be suppressed.

And it is preferable to provide the sealing member which seals this clearance gap in the clearance gap between this intermediate member and the edge surface of the adjacent multilayer glass. Thereby, the airtightness with respect to the indoor side space of a joint part and watertightness improve. The present invention is directed to a curtain wall in which an intermediate member is provided in one of the two adjacent laminated glasses and an intermediate member is not provided in the other laminated glass. The sealing material may be a dry fixed seal such as a gasket or a wet non-standard seal such as a sealing material.

The present invention, before Symbol intermediate member, wherein a member which is arranged along the longitudinal direction of the small surface of the glass plate positioned interior side of the insulating glass, two double adjoining across the joints A seal member that seals the gap is provided in a gap between the intermediate member and the intermediate member of the double-layer glass that is disposed on both of the layer glasses.

According to this invention, it is preferable to arrange | position an intermediate member along the longitudinal direction of the fore edge surface of the glass plate located in the room inner side of a multilayer glass. Thereby, since an intermediate member becomes inconspicuous from the indoor side and an outdoor side, the fall of landscape property can be suppressed.

And it is preferable to provide the sealing member which seals this clearance gap in the clearance gap between this intermediate member and the intermediate member of the adjacent laminated glass. Thereby, the airtightness with respect to the indoor side space of a joint part and watertightness improve. The present invention is directed to a curtain wall in which an intermediate member is provided on both of two adjacent multilayer glasses. The sealing material may be a dry seal such as a gasket, or a wet, irregular shaped seal such as a sealing material.

The present invention, before Kifutome member is characterized in that a rain barrier seal.

According to the present invention, it is preferable to use a rain barrier seal as the sealing member. Thereby, the watertightness of the isobaric space can be improved.

  According to the curtain wall according to the present invention, without attaching a frame material to the panel material, the sealing member provided at the joint portion between adjacent panel materials formed an isobaric space that is substantially isobaric with the outside. The scenery and design of the curtain wall can be improved. Further, since the sealing member is slidably engaged with the small edge surface of the panel material in the direction along the longitudinal direction of the small edge surface, peeling of the sealing member due to the difference in thermal expansion can be prevented. Accordingly, it is possible to prevent water from entering the small edge surface of the panel material, and it is possible to prevent water from staying on the small edge surface, thereby improving the weather resistance of the panel material.

  Hereinafter, preferred embodiments of a curtain wall according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a horizontal sectional view of mosquitoes over ten wall 10 is shown. A plurality (two in FIG. 1) of single glass plates (panel members) 12 and 12 constituting the curtain wall 10 are disposed adjacent to the opening for the wall surface of the building in the vertical direction and / or the horizontal direction. This constitutes a glass wall surface with good transparency.

  Further, as shown in the figure, on the opposite facet surfaces 12A, 12A of the adjacent glass plates 12, 12, a long rain barrier seal 14 which is a sealing member along the longitudinal direction of the facets 12A, 12A. , 14 are provided. The rain barrier seal 14 is made of resin and has a substantially U-shaped cross section. The lip portions 14A and 14A of the opposing rain barrier seals 14 and 14 are elastically contacted when the curtain wall 10 is constructed, so that the isobaric pressure between the rain barrier seals 14 and 14 is substantially equal to the outside. A space 16 is formed. Further, a sliding portion 14 </ b> C having a substantially triangular cross section is integrally formed along the longitudinal direction of the rain barrier seal 14 on the back side when the concave portion 14 </ b> B of the rain barrier seal 14 is front.

  On the other hand, dovetail grooves (engagement portions) 12B are formed in the small edge surface 12A of the glass plate 12 to which the rain barrier seal 14 is attached along the longitudinal direction of the small edge surface 12A. A sliding portion 14C of the rain barrier seal 14 is slidably engaged with the dovetail groove 12B. As a result, the rain barrier seal 14 is slidably engaged along the longitudinal direction of the small edge surface 12A of the glass plate 12, that is, in a direction orthogonal to the paper surface of FIG.

  Next, the operation of the curtain wall 10 configured as described above will be described.

  The curtain wall 10 is provided with an isobaric space 16 that is substantially equal in pressure to the outside on the rain barrier seals 14 and 14 provided at the joints between the adjacent glass plates 12 and 12 without attaching a frame material to the glass plate 12. Forming. Therefore, the curtain wall 10 has improved landscape and design.

  According to the curtain wall 10, the rain barrier seal 14 is not directly bonded to the small edge surface 12A of the glass plate 12, but the direction along the longitudinal direction of the small edge surface 12A with respect to the small edge surface 12A of the glass plate 12. The rain barrier seal 14 is slidably engaged with the glass plate 12, and the rain barrier seal 14 is attached to the glass plate 12. As a result, even when the rain barrier seal 14 greatly expands with respect to the glass plate 12 along the longitudinal direction of the small edge surface 12A of the glass plate 12, particularly in the summer when the temperature is high, the rain barrier seal 14 is 12 is slid along the edge surface 12A of the glass plate 12 while being engaged with the glass plate 12. Therefore, the rain barrier seal 14 can be prevented from peeling from the glass plate 12, water can be prevented from entering the small edge surface 12A (the dovetail groove 12B) of the glass plate 12, and water can remain in the small edge surface 12A (the dovetail groove 12B). Therefore, the weather resistance of the glass plate 12 can be improved.

  In the curtain wall 10 of FIG. 1, the single glass plate 12 is exemplified as the panel material, but tempered glass and laminated glass may be used, and so-called organic resin materials such as polycarbonates and polystyrenes may be applied. However, as will be described later, it is preferable that the glass is a double-glazed glass in that durability and weather resistance can be maintained by improving drainage.

FIG. 2 is a perspective view of a main part when the curtain wall 20 according to the first embodiment is viewed from the outdoor side, and shows a form in which a multilayer glass 22 is applied as a panel material. FIG. 3 is a horizontal sectional view of the curtain wall 20.

  As shown in FIG. 3, the multi-layer glass 22 is formed by separating two glass plates 22A and 22B via a spacer 26 arranged to form an air layer 24 therebetween, and the spacer 26 and the glass 26, respectively. A primary sealant (not shown) made of a butyl sealant or the like is placed between the glass plates 22A and 22B, and the peripheral edges of the spaced glass plates 22A and 22B and the spacer 26 A secondary sealing material 28 made of an elastic sealing material or the like is placed in the space formed to seal the air layer 24.

  In addition, the curtain wall 20 is provided with a resin rain barrier seal 30 for sealing the joint portion at the joint portion between the adjacent multiple glass layers 22 and 22.

  Although the detailed structure of the rain barrier seal 30 will be described later, the rain barrier seal 30 has an isobaric space 32 that is substantially equal in pressure to the outside between the small glass surfaces 22C and 22C of the adjacent double-layer glasses 22 and 22. , 34 are formed. The rain barrier seal 30 is also slidably engaged in the direction along the longitudinal direction of the small edge surfaces 22C, 22C with respect to the small edge surfaces 22C, 22C of the adjacent multilayer glasses 22, 22.

  This curtain wall 20 is an embodiment specialized for a curtain wall using a multi-layer glass 22 as a panel material, and a joint between adjacent multi-layer glasses 22 and 22 without attaching a frame material to the multi-layer glass 22. Isobaric spaces 32 and 34 having substantially the same pressure as the outside are formed between the rain barrier seal 30 provided in the portion and the small-mouthed surfaces 22C and 22C of the multilayer glasses 22 and 22. Thereby, it is the curtain wall 20 which improved scenery nature and design nature.

  Incidentally, the rain barrier seal 30 is made of resin, and as shown in FIGS. 3 and 4, a plate 30A for sealing the joint portion on the outdoor side, a plate 30B for sealing the joint portion on the indoor side, and the plate 30A. And the plate 30C integrally connecting the plate 30B.

  A lip portion 30D is formed on the right edge of the plate 30A in FIG. 4, and a sliding portion 30E bent inward is formed on the right edge of the plate 30B in FIG. The lip portion 30D is elastically brought into contact with the small edge surface of the right outdoor glass plate 22B in FIG. 4, and the sliding portion 30E is attached to the small edge surface of the right indoor glass plate 22A in FIG. The holder (intermediate member) 36 is slidably engaged with the dovetail groove 36A. As a result, an isobaric space 32 is formed between the rain barrier seal 30 and the right-side multilayer glass 22.

  Further, a lip portion 30F is formed at the left edge portion of the plate 30A in FIG. 4, and a sliding portion 30G having a substantially triangular cross section is formed at the left edge portion of the plate 30B in FIG. The lip portion 30F is elastically brought into contact with the small edge surface of the left outdoor glass plate 22B in FIG. 4, and the sliding portion 30G is attached to the small edge surface of the left indoor glass plate 22A in FIG. The holder 36 is slidably engaged with the dovetail groove 36 </ b> A of the holder 36. As a result, an isobaric space 34 is formed between the rain barrier seal 30 and the left multi-layer glass 22.

  The holder 36 described above includes a plate-like portion 36B and a bent portion 36C bent at a right angle. The plate-like portion 36B is disposed along the longitudinal direction of the small edge surface of the glass plate 22A on the indoor side, and is folded. The curved portion 36 </ b> C is bonded to the secondary sealing material 28 placed on the peripheral edge of the multilayer glass 22 and integrated with the multilayer glass 22. Therefore, the holder 36 is fixed in the longitudinal direction of the small edge surface of the glass plate 22 </ b> A disposed on the indoor side of the multilayer glass 22.

  Therefore, according to the curtain wall 20, the rain barrier seal 30 is not directly bonded to the small edge surface 22 </ b> C of the multilayer glass 22, but the small edge is formed with respect to the small edge surface 22 </ b> C of the multilayer glass 22 by interposing the holder 36. The rain barrier seal 30 is slidably engaged in a direction along the longitudinal direction of the surface 22C.

  Thereby, even when the rain barrier seal 30 greatly expands with respect to the multi-layer glass 22 along the longitudinal direction of the facet 22C of the multi-layer glass 22 particularly in summer when the temperature is high, the rain barrier seal 30 is Since it slides along the longitudinal direction of the facet 22 </ b> C of the multilayer glass 22 while being engaged with the multilayer glass 22, it is possible to prevent the rain barrier seal 30 from peeling from the multilayer glass 22. Therefore, it is possible to prevent water intrusion into the small edge surface 22C of the multilayer glass 22, and it is possible to prevent water from staying on the small edge surface 22C, so that the weather resistance of the multilayer glass 22 can be improved.

  In order to directly engage the rain barrier seal 14 with the multi-layer glass 22, an engaging portion that engages the sliding portions 30 </ b> E and 30 </ b> G of the rain barrier seal 30 is formed directly on the small edge surface 22 </ b> C of the multi-layer glass 22. do it. However, it is difficult to form the engaging portion directly on the small-mouthed surface 22C of the multilayer glass 22, and the manufacturing process increases, leading to an increase in cost. Therefore, as shown in FIGS. 3 and 4, the holder 36 is interposed between the multilayer glass 22 and the rain barrier seal 30, and the dovetail 36 </ b> A for engaging the rain barrier seal 30 with the holder 36 is formed. preferable.

  On the other hand, as shown in FIGS. 3 and 4, the holder 36 is preferably bonded to the secondary sealing material 28 placed on the peripheral edge of the multilayer glass 22 and integrated with the multilayer glass 22. Further, as shown in FIG. 4, it is preferable that the rain barrier seal 30 is previously engaged with one holder 36 to which the sliding portion 30G of the rain barrier seal 30 is engaged.

  Thereby, the panel unit in which the rain barrier seal 30 and the holder 36 are previously attached to the multilayer glass 22 can be shipped from the manufacturing factory of the multilayer glass 22, and the workability at the construction site of the curtain wall is improved. To do. That is, at the construction site, it is only necessary to engage the sliding portion 30E of the rain barrier seal 30 with the dovetail 36A of the holder 36 of the adjacent multilayer glass 22. The material of the holder 36 may be a metal such as aluminum or stainless steel, or may be made of resin.

  Moreover, it is preferable to arrange | position the holder 36 along the longitudinal direction of the small edge surface 22C of 22 A of glass plates located in the room inner side of the multilayer glass 22. FIG. Thereby, since the holder 36 becomes inconspicuous from the indoor side and the outdoor side, it is possible to suppress a decrease in scenery. As shown in FIGS. 3 and 4, the glass plate 22 </ b> A located on the indoor side of the multi-layer glass 22 is made more than the glass plate 22 </ b> B located on the outdoor side by the thickness of the plate-like portion 36 </ b> B of the holder 36. It is preferable to reduce the dimensions. Thereby, in a state where the holder 36 is disposed along the longitudinal direction of the small edge surface of the glass plate 22A on the indoor side, the small edge surface of the outdoor glass plate 22B and the surface of the plate-like portion 36B of the holder 36 are substantially planes. Become one.

  And it is preferable to provide the sealing member 38 which seals this clearance gap in the clearance gap between this holder 36 and the holder 36 arrange | positioned at the multilayer glass 22 adjacent as shown in FIG. Thereby, the airtightness with respect to the indoor side space of a joint part and watertightness improve. The sealing material 38 may be a dry fixed seal such as a gasket, or may be a wet amorphous seal such as a sealing material.

FIG. 5 is a horizontal cross-sectional view of the main part of the curtain wall 40 according to the second embodiment.

  The difference in configuration between the curtain wall 40 shown in FIG. 3 and the curtain wall 20 shown in FIG. 3 will be described. The curtain wall 20 shown in FIG. 3 has holders on the small edge surfaces 22C and 22C of the adjacent double glazings 22 and 22, respectively. The curtain wall 40 of FIG. 5 has the holder 42 bonded to the small edge surface 22C of the double glazing 22 on the left side of FIG. Specifically, a convex portion 42 </ b> A that protrudes from the back side of the holder 42 is bonded to the multilayer glass 22 by the secondary sealing material 28.

  And this holder 42 is arrange | positioned along the longitudinal direction of the small edge surface of the glass plate 22A of an indoor side, and the small edge surface of the glass plate 22B of an outdoor side, and a pair of dovetail grooves 42B and 42B are formed in the front side. It is formed along the longitudinal direction of each facet. The sliding portions 44A and 44A of the rain barrier seal 44 are slidably engaged with the dovetail grooves 42B and 42B, and the lip portions 44B and 44B of the rain barrier seal 44 are adjacent to the indoor side of the multilayer glass 22. The glass plate 22A is in contact with the small edge surface of the glass plate 22A and the small edge surface of the outdoor glass plate 22B with elasticity. As a result, an isobaric space 46 is formed between the lip portions 44B and 44B of the rain barrier seal 44 and the facet 22C of the double-sided glass 22 on the right side of FIG. Further, a seal member 48 for sealing the gap is provided in the gap between the holder 42 and the fore-edge surface of the double-layer glass 22 (inner side glass plate 22A) on the right side of FIG.

  Since the function and effect of the curtain wall 40 configured in this way are the same as those of the curtain wall 20 shown in FIG. 3, the description thereof is omitted here.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above-described embodiments, and various design changes and the like can be made without departing from the scope of the present invention. is there. For example, in the curtain wall 40 shown in FIG. 5, the holder 42 is also provided on the small edge surface of the outdoor glass plate 22B, but the present invention is not limited to this, and the small edge surface of the indoor glass plate 22A is not limited thereto. You may provide only. In the embodiment described above, the shape of the engagement portion of the sealing member is the dovetail groove 12B, 36A, 42B. However, the shape is not limited to this, and the sliding portion 14C, 30G, 44A Any shape may be used as long as the shape is rich in watertightness and can smoothly slide and support the sliding portions 14C, 30G, and 44A.

Main part horizontal sectional view of a mosquito over ten Wall The principal part perspective view of the curtain wall which concerns on 1st Embodiment Horizontal sectional view of the main part of the curtain wall shown in FIG. Explanatory drawing which shows the construction form of the curtain wall shown in FIG. The principal part horizontal sectional view of the curtain wall concerning a 2nd embodiment Horizontal section of the main part of a conventional curtain wall

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Curtain wall, 12 ... Glass plate, 12A ... Small facet, 12B ... Dovetail groove, 14 ... Rain barrier seal, 14A ... Lip part, 14B ... Recessed part, 14C ... Sliding part, 16 ... Isobaric space, 20 ... Curtain Wall, 22 ... Multi-layer glass, 22A ... Glass plate, 22B ... Glass plate, 22C ... Small facet, 24 ... Air layer, 26 ... Spacer, 28 ... Secondary sealant, 30 ... Rain barrier seal, 30A ... Plate, 30B ... Plate, 30C ... Plate, 30D ... Lip part, 30E ... Sliding part, 30F ... Lip part, 30G ... Sliding part, 32 ... Isobaric space, 34 ... Isobaric space, 36 ... Holder, 36A ... Dovetail groove, 36B ... Plate-like part, 36C ... Bending part, 40 ... Curtain wall, 42 ... Holder, 42A ... Convex part, 42B ... Dovetail groove, 44 ... Rain barrier seal, 44A ... Sliding part, 44B ... -Up part, between 46 ... etc. pressure, 48 ... seal member

Claims (4)

In a curtain wall in which a plurality of double glazings are arranged adjacent to each other in the vertical direction and / or in the horizontal direction,
An isobaric space is provided at the joint between the adjacent double glazings and within the resin sealing member that seals the joint.
The sealing member is slidably engaged in the direction along the longitudinal direction of the small edge surface with respect to the small edge surface of the multilayer glass,
An intermediate member is bonded to a sealing material placed between the peripheral edges of each glass plate constituting the multilayer glass, and the sealing member is engaged with an engagement portion formed on the intermediate member. Thus, the sealing member is slidably engaged in a direction along the longitudinal direction of the facet of the multilayer glass. The intermediate member is a member arranged along the longitudinal direction of the facet of the glass plate located on the indoor side of the double glazing, and is attached to one of the two double glazings adjacent to each other with the joint portion interposed therebetween. The curtain wall according to claim 1, wherein a seal member that seals the gap is provided in a gap between the intermediate member and the edge of the double-sided glass adjacent to the intermediate member. The intermediate member is a member arranged along the longitudinal direction of the facet of the glass plate located on the indoor side of the double-glazed glass, and the two adjacent double-glazed glasses sandwiching the joint portion. The curtain wall according to claim 1, wherein a sealing member is provided in a gap between the intermediate member and the intermediate member of the double-glazed glass that is disposed and seals the gap. The curtain wall according to claim 1, wherein the sealing member is a rain barrier seal.

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