JPH0668177B2 - Exterior wall waterproof structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a waterproof structure for an outer wall of a building.

[Prior Art] Generally, a joint between an outer wall member and a member immediately below the outer wall member (hereinafter, referred to as a lower wall member), for example, when the outer wall member is an outer wall panel, the lower wall member is an outer wall panel, a floor panel, or a roof. For joints such as eaves, it is necessary to adopt a structure that prevents water from entering.

Conventionally, as a waterproof structure for the outer wall, as described in JP-A-56-150246, packing is loaded in the joint between the outer wall member and the under-wall member, or as described in JP-B-59-36567. As described above, there has been proposed a structure in which a draining plate is provided at the joint between the outer wall member and the under-wall member.

[Problems to be Solved by the Invention] However, even if packing is loaded in the joint between the outer wall member and the lower wall member, new connections are made between the packing and the outer wall member and between the packing and the lower wall member, respectively. Part
It is difficult to completely prevent the ingress of water from this new connection.

Further, even if the draining plate is arranged at the joint between the outer wall member and the under-wall member, it is easy to leave a minute gap between the draining plate and each of the outer wall member and the under-wall member, and the intrusion of water is completely prevented. Have difficulty doing.

It is an object of the present invention to reliably prevent water from entering the joint between the outer wall member and the under-wall member.

[Means for Solving the Problems] The present invention relates to a waterproof structure for an outer wall that seals a joint between an outer wall member and a lower wall member with water. And a waterproof cover is attached to the outside of the portion of the surface layer covering material that extends over the outer wall member and the lower wall member.

[Operation] According to the present invention, since the surface layer covering material provided on the outer surface of the outer wall member is extended to the outer surface of the lower wall member, the joint region between the main body portion of the outer wall member and the main body portion of the lower wall member is the surface layer. It is completely closed to the outside by the covering material.

Also, since the portion of the surface layer covering the outer wall member and the lower wall member is covered with a waterproof cover, it is possible
Protected from the possibility of direct human damage, the closed state of the joint region between the outer wall member and the underwall member can be stably maintained for a long period of time.

That is, according to the present invention, it is possible to reliably prevent water from entering the joint portion between the outer wall member and the underwall member.

[Embodiment] FIG. 1 is a sectional view showing a main part of a building structure to which an embodiment of the present invention is applied, and FIG. 2 is a sectional view showing a construction process of FIG.

The building 10 is a unit building composed of a wooden wall type structure,
The upper building unit (second floor portion) 12 is joined to the upper part of the lower building unit (first floor portion) 11. The lower building unit 11 and the upper building unit 12 are industrially manufactured in a factory or the like, and then transported to a construction site for installation.

FIG. 1 shows the joint between the wall panel 13 of the lower building unit 11 (lower wall member of the present invention) and the wall panel 14 of the upper building unit 12 (outer wall member of the present invention).

The wall panel 13 of the lower building unit 11 includes an upper frame 15, a vertical frame 16,
A main body is formed by a frame (not shown), an outer wall material 17, and an inner wall material 18, and a coating film is provided on the outer surface of the outer wall material 17 (surface coating material).
Has given 19.

The wall panel 14 of the upper building unit 12 forms a main body portion by an unillustrated upper frame, vertical frame 20, lower frame 21, outer wall material 22, and inner wall material 23, and a coating film is formed on the outer surface of the outer wall material 22. Surface layer (surface layer coating material)
24 has been given.

In the figure, 25 is a floor material, 26 is an end joist, and 27 is a connecting lower frame. The upper frame 15 and the connecting lower frame 27 of the wall panel 13 are
The bolt holes 28A and 28B corresponding to each other are provided and fastened by the bolt 29.

Here, the building 10 is a wall panel in the upper building unit 12.
A coating film covering 24 provided on the outer surface of the main body of 14 extends to the outer surface of the main body of the wall panel 13 in the lower building unit 11.

That is, when the upper building unit 12 is manufactured, a flexible support made of a nonwoven fabric, a rubber sheet, a synthetic resin film, a metal foil, or the like is provided at the lower end portion of the outer wall material 22 of the wall panel 14 along the horizontal direction. 30 is fixed by nails 31. Support 30
Is provided with a length extending to the side of the wall panel 13 in the lower building unit 11, and the coating material 24 is the outer wall material of the wall panel 14.
22 and the outer surface of the support 30. The back surface of the support 30 is an adhesive surface 32 (see FIG. 2).

Further, when the lower building unit 11 is manufactured, the non-coating film processing portion 33 is formed on the upper end portion of the outer wall material 17 of the wall panel 13.

Thereby, when the upper building unit 12 is mounted on the upper part of the building unit 11 at the building site, the viscous surface 32 of the support 30 carrying the coating film coating 24 on the side of the upper building unit 12,
It is joined in close contact with the non-coating film processing portion 33 formed on the outer wall material 17 of the wall panel 13 on the side of the lower building unit 11.
At this time, the upper end portion of the paint coating 19 on the lower building unit 11 side and the lower end of the paint coating 24 on the upper building unit 12 side are connected without a gap.

In addition, the building 10 has a lower building unit 11 and an upper building unit 12
At the time of joining with, the packing 40 is loaded between the upper end portion of the wall panel 13 and the lower end portion of the wall panel 14 in a pressed state.

Furthermore, the building 10 includes a wall panel 13 and a wall panel 13 with a paint coating 24.
A waterproof cover (decorative cover) 34 is attached to the outer side of the portion that extends over 14 and the connecting portion between the coating film surface mount 19 and the coating film surface cover 24. That is, the cover attachment member 35 is attached to the outer wall material 22 of the upper building unit 12 with the nail 36, and the upper end portion of the waterproof cover 34 is attached to the cover attachment member 35 with the set screw 37. The lower end of the waterproof cover 34 is attached to the outer wall material 17 of the lower building unit 11 with a set screw 38.

Next, the operation of the above embodiment will be described.

According to the above-mentioned embodiment, since the coating film covering 24 provided on the outer surface of the wall panel 14 of the upper building unit 12 is extended to the outer surface of the wall panel 13 of the lower building unit 11, the main body portion of the wall panel 14 is The joint area of the main body of the wall panel 13 is completely closed to the outside by the coating film covering 24.

In addition, since the portion of the coating surface covering 24 that extends over the wall panel 14 and the wall panel 13 is covered with the waterproof cover 34, it is protected from the wind and rain in the outside world and the possibility of direct damage due to human beings.
It is possible to stably maintain the closed state of both joint regions of the wall panel 14 and the wall panel 13 for a long period of time.

That is, according to the above-described embodiment, it is possible to reliably prevent water from entering the joint between the wall panel 14 of the upper building unit 12 and the wall panel 13 of the lower building unit 11.

In the practice of the present invention, the surface coating material is not limited to the coating film, but may be a metal thin plate, a synthetic resin thin plate, or the like.

Further, in the case of constructing the surface coating material provided on the outer wall member at the construction site, in the coating surface coating 19 on the side of the lower building unit 11 and the coating surface coating 24 on the side of the upper building unit 12 as in the above embodiment. There is no such separation of the surface coating material.

Further, the present invention can be widely applied to the waterproof structure of the joint between the outer wall panel and the floor panel, and the joint between the outer wall panel and the roof, eaves, and the like.

[Effects of the Invention] As described above, according to the present invention, it is possible to reliably prevent water from entering the joint portion between the outer wall member and the lower wall member.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a main part of a building structure to which an embodiment of the present invention is applied, and FIG. 2 is a sectional view showing a construction process of FIG. 10 …… Building, 13 …… Wall panel (lower wall member), 14 …… Wall panel (outer wall member), 24 …… Coating surface coating (surface coating material), 30
…… Supporting body, 34 …… Waterproof cover.

Claims (1)

[Claims] 1. In a waterproof structure of an outer wall for sealing a joint between an outer wall member and a lower wall member immediately below the outer wall member, a surface coating material provided on the outer surface of the outer wall member is extended to the outer surface of the lower wall member. A waterproof structure for an outer wall, wherein a waterproof cover is attached to the outside of a portion of the surface layer covering material that extends over the outer wall member and the lower wall member.