JP3344784B2 - Waterproof structure at the intersection of the body joint - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure at an intersection of a trunk joint by a dry method.

[0002]

2. Description of the Related Art Conventionally, joints formed between a pair of outer wall panels are waterproofed by a wet sealing method using a backup material and a wet sealing material.

[0003]

However, in such a wet construction method, the construction period depends on the weather and the construction period becomes longer, or a specialized craftsman is required, and the quality is influenced by the skill of the craftsman and is not stable. There is a problem.

Therefore, as an alternative to such a wet construction method, the present applicant has previously made a pair of band-shaped strips attached to the side surfaces of each outer wall panel at a vertical joint formed between both side edges of adjacent outer wall panels. Connect the ends of the tarpaulin to each other,
It has been proposed to adopt a dry method in which the paired waterproof sheets are embedded in a vertical joint, and then a joint finishing material made of a rubber-like elastic material is fitted into the vertical joint. However, even in this case, at a place where the body difference outer wall material between the upper and lower outer wall panels is attached, a wet waterproof structure performed at a horizontal joint formed between the body difference outer wall material and the upper and lower outer wall panels, There is a problem that the connection with the waterproof structure of the vertical joint by the waterproof sheet and the joint finishing material does not work well, and the construction is not easy.

Heretofore, in a portion covered with a decorative body gap, a drain board or the like is protruded from a horizontal joint, and waterproofing at the intersection of the body joint is entirely performed by a dry method. However, it cannot be used in the case of an outer wall that is not covered with a decorative cylinder, because it protrudes from the joint and deteriorates its appearance.

SUMMARY OF THE INVENTION An object of the present invention is to provide a waterproof structure at an intersection of a trunk joint, which can be easily constructed by a dry construction method and ensures reliable waterproofness.

[0007]

According to the present invention, two upper-floor outer wall panels and two lower-floor outer wall panels are juxtaposed, and a girder outer wall material is provided between the outer wall materials of the upper and lower outer wall panels. It is a waterproof structure at the intersection of the waist joints. Each exterior wall panel
Each of the panel frames is provided with an outer wall material via an outer wall base bar. The vertical joint formed between the outer wall materials of the outer wall panels arranged on the left and right of the upper and lower floors includes a pair of strip-shaped vertical members each having one side edge sandwiched between the outer wall material and the outer wall base bar in the left and right outer wall panels. The joint waterproofing sheets are provided in a state where the other side edges are connected to each other. At the upper end of the lower-floor outer wall panel, a lower-floor seam joint waterproof sheet whose lower edge is sandwiched between the outer-wall foundation bar and the outer wall material and extends over the overhanging portion of the outer-wall foundation bar, It is provided so as to overlap the front side of the vertical joint waterproof sheet.
At the lower end of the upper-floor outer wall panel, an upper-floor seam joint waterproof sheet whose upper edge is sandwiched between the outer-wall base bar and the outer wall material and extends over the lower overhanging portion of the outer-wall base bar, It is provided so as to overlap the back side of the vertical joint waterproof sheet. An upper edge overlaps the back side of the upper floor side seam waterproofing sheet and a lower edge is provided with a body difference waterproof sheet overlapping a front side of the lower floor side seam waterproofing sheet, and the body difference outer wall material is superimposed on the front side of the body difference waterproof sheet. Are attached to the upper and lower overhangs. A joint finishing material made of a rubber-like elastic material is fitted to the upper and lower two horizontal joints and the vertical joints formed between the upper and lower edges of the outer wall material and the outer wall material of each outer wall panel.

[0008]

In the vertical joint at the intersection of the wad joints, a pair of vertical joint waterproof sheets sandwiched between the outer wall base rails of the left and right outer wall panels and the outer wall material are joined to each other, and the joint finishing material is fitted. Therefore, a double waterproof structure is provided, and waterproofing at vertical joints is ensured. Further, at each horizontal joint of the waist portion, a horizontal joint waterproofing sheet is provided, and a joint finishing material is provided on the front side thereof. At the waist joint joint, the waterproofing is performed by each waterproofing sheet and the joint finishing material, but the order of overlapping these waterproofing sheets is successively overlapped on the back side with respect to the direction of rainwater flow. I have. That is, the horizontal joint waterproofing sheet of the upper floor, the body difference waterproofing sheet, the horizontal joint waterproofing sheet of the lower floor, and the vertical joint waterproofing sheet of the lower floor are sequentially connected to the back from the vertical joint waterproofing sheet of the upper floor. Therefore, rainwater does not infiltrate to the back side at the joint of the waterproof sheet, and reliable waterproofness can be obtained.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The waterproof structure at the intersection of the waist joints has two lower-floor outer wall panels 1A, 1A and two upper-floor outer wall panels 1B, 1B arranged side by side, and upper and lower outer wall panels 1A, 1B.
The present invention is applied to a place where the outer wall material 2 is provided between the two. Each of the outer wall panels 1A and 1B is obtained by attaching an outer wall base bar 4 and an outer wall material 5 to an outdoor surface of a panel frame 3 (FIG. 2). Panel frame 3 of each outer wall panel 1A, 1B
Are columns 14 made of square pipes or the like and beams 15 made of shaped steel.
(Fig. 4). The outer wall base bar 4 is made of a waterproof plywood or the like, and the outer wall material 5 is made of a cement board, a slate board or the like.

Each of the outer wall panels 1A and 1B has a structure shown in FIG.
As shown in FIG. 3A, the vertical joint waterproof sheet 6 and the horizontal joint waterproof sheets 7a and 7b made of a resin sheet or the like are attached in advance at a factory or the like. That is, at the side end of the lower floor outer wall panel 1A, one side edge of the strip-shaped vertical joint waterproof sheet 6 is sandwiched between the outer wall base bar 4 and the outer wall material 5 as shown in FIGS. Along with, lower floor outer wall panel 1A
The lower edge of the strip-shaped lower floor side joint waterproof sheet 7a extending on the upper overhanging portion 4a of the outer wall base bar 4 is sandwiched between the outer wall base bar 4 and the outer wall material 5. At this time, the side edges of the lower floor horizontal joint waterproof sheet 7a are overlapped with the front side of the vertical joint waterproof sheet 6.

Also, as shown in FIGS. 1 and 3A, one side of the strip-shaped vertical joint waterproof sheet 6 is provided between the outer wall base bar 4 and the outer wall material 5 at the side end of the upper floor outer wall panel 1B. At the lower end of the upper-floor outer wall panel 1B, the upper edge of the strip-shaped upper-floor side-joint waterproofing sheet 7b extending on the lower overhanging portion 4b of the outer-floor outer rail 4 is attached to the lower edge of the upper-floor outer wall panel 1B. Between the two. At this time, the upper floor horizontal joint waterproof sheet 7b is set so that its side edge overlaps the back side of the vertical joint waterproof sheet 6.

After the outer wall panels 1A, 1B have been built up, down, left and right, the other side edges of the vertical joint waterproof sheets 6, 6 of the lower floor outer wall panels 1A, 1A arranged side by side as shown in FIG. Connected to each other and then to the lower floor side seam tarpaulin 7 on both sides
a, 7a are connected to each other. In this embodiment, the bonding between the waterproof sheets is performed by the adhesive 8. The adhesive 8 may be an adhesive. Instead of the adhesive 8, a double-sided adhesive tape may be used.

Then, as shown in FIGS. 1 and 4, the body-difference waterproof sheet 9 is attached to the overhanging portions 4b, 4a of the outer wall base bar 4 in the upper and lower outer wall panels 1B, 1A with a double-sided tape or the like. In this case, the lower part of the body-difference waterproof sheet 9 is overlapped on the front side of the lower-floor side joint waterproof sheet 7b. A resin sheet similar to the other waterproof sheets 6, 7a, and 7b is also used for the body difference waterproof sheet 9.

Next, as shown in FIG. 3 (B), upper floor side joint waterproofing sheets 7b, 7 of upper floor outer wall panels 1B, 1B arranged side by side.
First, the side ends of b are connected to each other, and then the other side edges of the vertical joint waterproof sheets 6, 6 on both sides are connected to each other. At this time, the upper-floor side joint waterproof sheet 7b is overlaid on the front side of the upper edge of the body difference waterproof sheet 9 as shown in FIG.

Further, as shown in FIG. 4, the trunk outer wall material 2 is attached to the front side of the trunk difference waterproof sheet 9 with screws 10 or the like. Thereafter, two upper and lower horizontal joints 11 and vertical joints 12 formed between the upper and lower edges of the above-mentioned outer wall material 2 and the outer wall material 5 of each of the outer wall panels 1A and 1B are shown in FIGS. ), FIG.
(C) As shown in FIG. 4, a joint finishing material 13 made of a rubber-like elastic body is fitted.

According to this configuration, in the vertical joint 12, the vertical joint waterproofing sheet 6, the lower floor horizontal joint waterproofing sheet 7a, the upper floor horizontal joint waterproofing sheet 7b, and the joint finishing material 13 are included in the vertical joint 12 of the body joint. Since waterproofing is performed twice, a reliable waterproofing structure is obtained. Further, in the lower joint side joint 11, the waterproofing is performed twice by the lower joint side joint waterproof sheet 7 a, the body difference waterproof sheet 9 whose lower edge overlaps the front side thereof, and the joint finishing material 13,
The upper joint side joint 11 is also waterproofed by the upper joint side joint waterproof sheet 7b, the body difference waterproof sheet 9 whose upper edge overlaps the back side thereof, and the joint finishing material 13, so that a reliable waterproof structure is provided. Becomes Furthermore, these waterproof sheets 6, 7a, 7b
Is sandwiched between the outer wall material 5 and the base beam 4, so that the waterproof sheets 6, 7a, 7b and the small edge of the outer wall material 5 ensure complete waterproofness. In addition, the fore-edge surface of the outer wall material 5 is waterproofed.

At the body joint, the waterproof sheets 6, 7a, 7b, 9 and the joint finishing material 13 are waterproofed, and the order of overlapping these waterproof sheets 6, 7a, 7b, 9 is as follows. Since the rainwater is successively overlapped on the back side in the flowing direction of the rainwater, rainwater does not infiltrate into the backside at the joints of the waterproof sheets 6, 7a, 7b, 9 so that reliable waterproofness is obtained. Can be That is, from the vertical joint waterproof sheet 6 on the upper floor to the back side in order, the horizontal joint waterproof sheet 7b on the upper floor, the waist waterproof sheet 9, the horizontal joint waterproof sheet 7 on the lower floor.
a, and the vertical joint waterproof sheet 6 on the lower floor are superposed in this order, so that rainwater is prevented from entering the back side at the sheet joint portion. In addition, since the body difference waterproofing sheet 9 is attached to the base of the body difference outer wall material 2 instead of the drainage plate, there is no need to use a decorative body difference that hides the body drainage plate. It can be a certain body difference.

Further, at the time of construction, the vertical joint waterproof sheet 6 and the horizontal joint waterproof sheets 7a and 7b are combined, the body difference waterproof sheet 9 is attached, the body difference outer wall material 2 is attached, and the joint finishing material 13 is fitted. Since only dry work is required, the sealing work is simple, no sealing profession is required, and the quality is not affected by the skills of the workers. In addition, inspection can be performed easily even after completion of the sealing work. Attachment of the vertical joint waterproof sheet 6 and the horizontal joint waterproof sheets 7a and 7b to the outer wall panels 1A and 1B can be performed in a factory in advance, so that the on-site work can be reduced.

[0019]

The waterproof structure at the intersection of the body joints according to the present invention has a double waterproof structure comprising a waterproof sheet and a rubber-like elastic joint finishing material, and is provided at each of the vertical joint, the horizontal joint, and the body joint. The waterproof sheet to be provided is successively overlapped on the back side in the direction of rainwater flow, so that rainwater does not enter from the seam of the waterproof sheet, and each part has a double waterproof structure to ensure reliable waterproofness Can be In addition, all can be easily constructed by the dry method.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a waterproof structure of a body joint joint intersection according to the present invention.

FIG. 2 is an explanatory view showing a construction procedure on an upper end side of a lower floor outer wall panel of the waterproof structure.

FIG. 3 is an explanatory view showing a construction procedure on the lower end side of the upper floor outer wall panel of the waterproof structure.

FIG. 4 is a vertical sectional view of the waterproof structure.

[Explanation of symbols]

1A: Lower-floor outer wall panel, 1B: Upper-floor outer wall panel, 2: Outer wall material, 3: Panel frame, 4: Outer wall base rail, 5 ...
Outer wall material, 6 ... vertical joint waterproof sheet, 7a, 7b ... horizontal joint waterproof sheet, 9 ... trunk difference waterproof sheet, 11 ... horizontal joint, 12
... vertical joint, 13 ... joint finishing material

Claims (1)

(57) [Claims] 1. Two upper floor outer wall panels and two lower floor outer wall panels, each having an outer wall material stretched on a panel frame via an outer wall base bar, are arranged side by side, and the outer wall materials of the upper and lower outer wall panels are arranged side by side. The outer joint between the outer wall materials of the left and right outer wall panels is a vertical joint formed between the outer wall materials of the outer wall panels arranged side by side on the upper and lower floors. A pair of band-shaped vertical joint waterproof sheets each having one side edge sandwiched between the bars are provided in a state where the other side edges are joined to each other, and the upper end of the lower floor outer wall panel is provided between the outer wall foundation bar and the outer wall material. A lower-floor horizontal joint waterproofing sheet whose edge is sandwiched and extends over the upper overhanging portion of the outer wall base rail is provided so that the side end overlaps the front side of the lower-level vertical joint waterproofing sheet, and at the lower end of the upper floor outer wall panel The upper edge is sandwiched between the outer wall foundation and the outer wall material, and the An upper floor side seam waterproofing sheet extending over the overhang portion is provided so that a side edge overlaps the back side of the vertical floor seam waterproofing sheet of the upper floor, and an upper edge overlaps a back side of the upper floor side seam waterproofing sheet and a lower edge is formed. A slippage waterproof sheet overlapping the front side of the lower floor side seam waterproofing sheet is provided, and the slippage outer wall material is attached to the upper and lower overhang portions so as to overlap the front side of the slippage waterproof sheet, and the upper and lower edges of the slippage outer wall material A waterproof structure of a cross joint of a trunk joint in which two upper and lower horizontal joints formed between outer wall materials of each outer wall panel and a joint finishing material made of a rubber-like elastic body are fitted to each of the vertical joints.