JPH03208933A - Water proof structure of external wall - Google Patents

Abstract

PURPOSE:To securely prevent water, by bonding one end of a waterproof sheet at the side edge of an external wall and holding the thick part at the other end, in the holding part having C-shaped section of a gasket and inserting into the joint of external wall. CONSTITUTION:One end 32 of a waterproof sheet 3 is bonded with the backface of the side edge part 12 of an adjacent external wall 1 and the other end, the thick part 31, of the waterproof sheet 3 is superimposed and inserted into the holding part having C-shaped section of a gasket 2. The gasket 2 is then slide along the waterproof sheet 3 and inserted into the thick part 31. Next, the waterproof sheet 3 inserted into the holding part 22 is inserted, along with the gasket 2, into the joint of adjacent external wall 1. In this way, the indoor side and outdoor side are insulated from each other with no gap.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a waterproof structure in which gaskets are inserted into joints in the outer walls of buildings.

(Prior Art) Various types of waterproof structures for the outer walls of buildings have been proposed, but as described in Japanese Patent Laid-Open No. 138528/1983, a gasket is inserted between the outer walls. Waterproof structures are widely used because they are easier to construct than plastering with cement mortar, etc., and do not cause cracks after drying.

(Problem B that the invention attempts to solve) However, even though this structure in which a gasket is inserted between the outer walls has good waterproof performance, it is still insufficient, and it is necessary to further improve the waterproof performance. There is a need.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a waterproof structure in which gaskets are inserted into the joints of an outer wall, which further improves its waterproof performance.

(Means for Solving the Problems) The present invention has been made to achieve the above-mentioned object, and includes a waterproof structure for an external wall in which gaskets are inserted into the joints of the external wall to make it waterproof. The other end of the waterproof sheet having a thickened part is adhered to the back side edge of the outer wall, and a hard sheet holding part with a C-shaped cross section is provided at the indoor end of the gasket, and the adjacent The thick part of each of the waterproof sheets adhered to both outer walls is sandwiched between sheet clamping parts having a C-shaped cross section, and this gasket is inserted into the joint of the outer wall, and the sheet clamping parts have a C-shaped cross section. The distance between the tips of the openings is less than twice the thickness of the thick portion of the sheet and more than twice the thickness of the sheet.

The gasket used in the present invention has a hard sheet holding part with a C-shaped cross section at the indoor end of the gasket, and this is divided into a long hard sheet holding part with a C-shaped cross section. It can also be used as a gasket.

There are various materials for the gasket used in the present invention, such as rubber such as natural rubber and Hewei rubber, Hewei resin such as soft vinyl chloride resin, and a combination of these and metal. - diene monomer copolymers), synthetic rubbers with good weather resistance such as phthyl rubber, and soft vinyl chloride resins are best.

The material of the hard sheet holding part with a C-shaped cross section provided at the indoor end of the gasket used in the present invention and the hard sheet holding part with a C-shaped cross section obtained by dividing this from the gasket is metal such as steel or aluminum. A rigid resin such as hard vinyl chloride resin is preferable. In particular, hard vinyl chloride resin is preferred.

There are various materials for the waterproof sheet used in the present invention, such as natural rubber, synthetic rubber, Hewei resin, paper impregnated with asphalt, etc., but sheets made of soft vinyl chloride resin are easy to provide with thick parts, so Best.

(Function) The waterproof structure of the outer wall of the present invention is achieved by using two
The thick part provided at one end of the waterproof sheet is held between a hard sheet holding part with a C-shaped cross section provided at the indoor end of the gasket, or a sheet holding tool split from the gasket. Therefore, the indoor side and the outdoor side of the outer wall are separated without a gap.

In addition, the distance between the sheet clamping part provided at the indoor end of the gasket or the opening tip of the C-shaped cross section of the sheet support is less than twice the thickness of the thick part of the waterproof sheet, and Since the thickness of the waterproof sheet is twice as thick as that of the waterproof sheet, if the two thick parts of the waterproof sheets of the adjacent outer walls are sandwiched between the two thick parts of the waterproof sheets, the thick parts of the waterproof sheets will not come off.

(Example) Examples of the present invention will be described below.

FIG. 1 shows one embodiment of the present invention, and is a sectional view taken horizontally through a vertical joint portion of an outer wall.

In the figure, 1 is the outer wall, which is a wood cement board with a thickness of 12 mm. The exterior side of this exterior wall 10 is painted 11. l2 is the side edge of this outer wall 1.

3 is a waterproof sheet made of soft vinyl chloride resin.

One longitudinal end of this waterproof sheet 3 is thickened to form a thick walled portion 31. Further, the other end 32 of the waterproof sheet 3 is adhered to the back surface of the side edge l2 of the outer wall 1.

2 is a gasket inserted into the joint of the outer wall 1, and the outdoor end 2l covers the joint of the outer wall to make the joint beautiful. Reference numeral 24 denotes a protruding piece protruding from the side surface of the gasket 2, which contacts the side surface of the outer wall and provides waterproofing, albeit incompletely. This gasket is made of soft vinyl chloride resin. Reference numeral 22 denotes a sheet holding part provided at the indoor end of the gasket 2, which has a C-shaped cross section, into which the thick part 31 of the waterproof sheet 3 is held. The distance between the tips of the openings of this C-shaped cross section is the thick part 31 of the waterproof sheet.
The thickness of the waterproof sheet 3 is smaller than twice the thickness of the waterproof sheet 3, and larger than twice the thickness of the waterproof sheet 3. This sheet holding portion 22 is made of hard vinyl chloride resin.

4 is a frame that supports the outer wall l.

Next, the construction method and operation of this embodiment will be explained.

One end 32 of the waterproof sheet 3 is glued to the indoor side edge of the outer wall. After that, the outer wall 1 is nailed to the frame 4, and the outer wall 1 is attached to the frame 4.
Attach to. Paint the exterior surface of the exterior wall to complete the look of the exterior wall panel. Attach this exterior wall panel to the house.

Next, the thick parts 31, 3I of the respective waterproof sheets 3, 3 glued to the back side edges of the adjacent outer walls 1, 1 are attached to the outer wall L.
1, and the thick parts 31, 31 of both waterproof sheets 3, 3 are inserted into the sheet clamping part of the gasket 2.

The method of sandwiching the thick parts 31, 31 of the waterproof sheets 3, 3 between the sheet holding parts 22 of the gasket 2 is to overlap the thick parts 31, 31 of the waterproof sheets 3, 3 pulled out from the joints, The overlapped thick portions 3l, 31 are inserted into the C-shaped cross-section holding portion 22 of the gasket from the upper or lower end of the waterproof sheet.

Thereafter, the gasket 2 is slid along the waterproof sheet, and the thick portions 31, 31 of the waterproof sheets 3, 3 are inserted into the holding portion of the gasket, which has a C-shaped cross section, and are sandwiched therebetween.

In this way, when the thick parts 31, 31 of the waterproof sheets 3, 3 adhered to the back side edges of both adjacent outer walls 1, 1 are sandwiched between the holding parts 22 of the gasket 2, which have a C-shaped cross-section, they form a C-shaped cross-section. Since the distance between the opening tips of the sheet holding parts 2 is smaller than twice the thickness of the thick part of the waterproof sheets, the waterproof sheets 3, 3
The thick wall portions 31, 31 will not come off from this clamping portion 22. Next, the waterproof sheet 3 held between the holding parts,
3 together with gasket 2 into the adjacent outer wall joints 1 and 10. In this way, when the gasket 2 and the waterproof sheet 3 are inserted, the protruding piece 24 protruding from the side surface of the gasket comes into contact with the side surface of the adjacent outer walls 1, 1, and is waterproofed here, but this is not sufficient. Since the waterproof sheets 3, 3 adhered to the back side edges of the adjacent outer walls 1, 1 and the gasket 2 are connected without any gap, complete waterproofing is achieved here.

Next, another embodiment of the present invention will be described with reference to FIG.

In FIG. 2, 1 is an outer wall, and 3 is a waterproof sheet. The structures of the outer wall 1 and the waterproof sheet 3 are the same as those shown in the embodiment shown in FIG.

2' is a gasket, and the outdoor side end 21' covers the outer wall and makes the joint beautiful. Reference numeral 24' denotes a protruding piece protruding from the side surface of the gasket 2, which contacts the side surface of the outer wall l and provides some degree of waterproofing. This gasket 2'
is made of EPDM.

Reference numeral 5 denotes a sheet clamping tool, which is a long body having a C-shaped cross section, and is made of hard vinyl chloride resin.

In the C-shaped cross section of this sheet holding tool 5, the adjacent outer wall 1
, 1 are sandwiched between the thick parts 31, 31 of the respective waterproof sheets adhered to the side edges of the back surfaces of the waterproof sheets.

Next, the construction method and operation of this example will be explained. One end 32 of the waterproof sheet 3 is adhered to the indoor side edge of the adjacent outer wall 1. After that, the outer wall 1 is nailed to the frame 5, the outer wall is attached to the frame, and the outdoor surface of the outer wall 1 is painted to complete the outer wall panel. Attach this exterior wall panel to the house.

Next, the thick parts 3l, 3l of the respective waterproof sheets 3, 3 glued to the back side edges of the adjacent outer walls 1, 1 are attached to the outer walls 1, 3.
, 1, and polymerize the thick parts 31, 31 of both waterproof sheets 3, 3, and the polymerized thick parts 3l,
31 from the upper or lower end of the waterproof sheet.
, and slide the clamping tool 5 along the waterproof sheet to allow the clamping tool 5 to clamp the thick parts 31, 31.

In this way, when the thick parts 31, 31 of the waterproof sheets 3, 3 bonded to the back side edges of the two adjacent outer walls 1, 1 are sandwiched between the clamping tools 5, the distance between the opening tips of the clamping tools 5 is is smaller than twice the thickness of the thick portions 31, 31 of the waterproof sheets 3, 3, so the thick portions 31, 31 of the waterproof sheets 3, 3 will not come off from the holding tool 5.

Thereafter, the clamping tool 5, which clamps the thick parts 31 and 3l of the waterproof sheets 3 and 3, is inserted into the joint part of the outer wall l.

Then, the indoor side and the outdoor side of this waterproof sheet are cut off without any gap.

Thereafter, a gasket 2' is inserted into the joint of this outer wall.

In this way, when the gasket 2' is inserted, the protruding piece 24' protruding from the side surface of the gasket 2' will cause the adjacent outer wall l,
■Touch the sides of and make it waterproof. However, this waterproof effect is not perfect.

Since the outdoor side and the indoor side are separated without any gap by the waterproof sheets 3, 3 glued to the back side edges of the adjacent outer walls 1, 3 and the sheet clamp 5, complete waterproofing is achieved here. , make up for the lack of waterproofing with just a gasket.

(Effects of the Invention) As explained above, the waterproof structure of the outer wall of the present invention is such that one end of the waterproof sheet in the longitudinal direction is adhered to the back side edge of the outer wall, and the other end is attached to the sheet holding part of the gasket or this gasket is divided. Because it is supported by a sheet holding tool, this joint part of the outer wall is connected to the indoor side! It is completely sealed off from the outside and is completely waterproof.

Further, when a gasket having a clamping part is used, the sheet sandwiched by the sheet clamping part at the indoor end of the gasket and the gasket are inserted into the joint at the same time, and this insertion process is completed in one step.

In addition, in the case where the clamping part and the gasket are separated into the clamping tool and the gasket, since the gasket is not connected to the clamping tool, it becomes easier to insert the thick part of the waterproof sheet into the clamping tool and support it. .

[Brief explanation of drawings]

Fig. 1 shows one embodiment of the present invention, and is a sectional view taken horizontally through a vertical joint part of an external wall, and Fig. 2 shows another embodiment, in which vertical joints of an external wall are cut horizontally. This is a horizontal cross-sectional view of the joint area. 1 ------------Outer wall 2--Gasket 23-Sheet clamping part (2'--1-Gasket) 3----------- --1 Waterproof sheet 311 Thick wall part--Sheet clamping tool 5

Claims (2)

[Claims] (1) In a waterproof structure for an exterior wall that is waterproofed by inserting gaskets into the joints of the exterior wall, one longitudinal end of the waterproof sheet is made thicker and the other end of the waterproof sheet has a thicker part and is glued to the back side edge of the exterior wall. , a hard sheet clamping part having a C-shaped cross section is provided at the indoor end of the gasket, and the thick part of each of the waterproof sheets adhered to both adjacent outer walls is sandwiched by the sheet clamping part having a C-shaped cross section. , the gasket is inserted into the joint of the outer wall, the distance between the tips of the openings of the C-shaped cross section of the sheet holding part is smaller than twice the thickness of the thick part of the waterproof sheet, and A waterproof structure for an outer wall characterized by being larger than twice the thickness. (2) The outer wall according to claim 1, characterized in that the gasket provided with a hard sheet holding portion having a C-shaped cross section is divided into a long sheet holding member having a C-shaped cross section and a gasket. Waterproof construction.